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The branch, tlsa/libcss-units has been updated
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commit fe0e7e9e9bf288a1051aeb1e808c728fbdeacf14
Author: Michael Drake <[email protected]>
Commit: Michael Drake <[email protected]>
WIP: make nscss_len2p{t|x} handle new libcss units.
This causes a ripple effect of all the callsites needing information
they didn't have. Most of the layout/redraw-time stuff is done,
although some remains (table.c and html_interaction).
Main things to do are:
1. We'll need know viewport dimensions at box-construction time.
e.g. for textarea setup.
2. The whole mess that is text selection needs some kind of
solution.
diff --git a/content/handlers/css/utils.c b/content/handlers/css/utils.c
index 5c7cbd9..c0d9628 100644
--- a/content/handlers/css/utils.c
+++ b/content/handlers/css/utils.c
@@ -27,11 +27,75 @@
/** Screen DPI in fixed point units: defaults to 90, which RISC OS uses */
css_fixed nscss_screen_dpi = F_90;
+
+/**
+ * Map viewport-relative length units to either vh or vw.
+ *
+ * Non-viewport-relative units are unchanged.
+ *
+ * \param[in] ctx Length conversion context.
+ * \param[in] unit Unit to map.
+ * \return the mapped unit.
+ */
+static inline css_unit css_utils__fudge_viewport_units(
+ const nscss_len_ctx *ctx,
+ css_unit unit)
+{
+ switch (unit) {
+ case CSS_UNIT_VI:
+ assert(ctx->root_style != NULL);
+ if (css_computed_writing_mode(ctx->root_style) ==
+ CSS_WRITING_MODE_HORIZONTAL_TB) {
+ unit = CSS_UNIT_VW;
+ } else {
+ unit = CSS_UNIT_VH;
+ }
+ break;
+ case CSS_UNIT_VB:
+ assert(ctx->root_style != NULL);
+ if (css_computed_writing_mode(ctx->root_style) ==
+ CSS_WRITING_MODE_HORIZONTAL_TB) {
+ unit = CSS_UNIT_VH;
+ } else {
+ unit = CSS_UNIT_VW;
+ }
+ break;
+ case CSS_UNIT_VMIN:
+ if (ctx->vh < ctx->vw) {
+ unit = CSS_UNIT_VH;
+ } else {
+ unit = CSS_UNIT_VW;
+ }
+ break;
+ case CSS_UNIT_VMAX:
+ if (ctx->vh > ctx->vw) {
+ unit = CSS_UNIT_VH;
+ } else {
+ unit = CSS_UNIT_VW;
+ }
+ break;
+ default: break;
+ }
+
+ return unit;
+}
+
/* exported interface documented in content/handlers/css/utils.h */
-css_fixed nscss_len2pt(css_fixed length, css_unit unit)
+css_fixed nscss_len2pt(
+ const nscss_len_ctx *ctx,
+ css_fixed length,
+ css_unit unit)
{
/* Length must not be relative */
- assert(unit != CSS_UNIT_EM && unit != CSS_UNIT_EX);
+ assert(unit != CSS_UNIT_EM &&
+ unit != CSS_UNIT_EX &&
+ unit != CSS_UNIT_CAP &&
+ unit != CSS_UNIT_CH &&
+ unit != CSS_UNIT_IC &&
+ unit != CSS_UNIT_REM &&
+ unit != CSS_UNIT_RLH);
+
+ unit = css_utils__fudge_viewport_units(ctx, unit);
switch (unit) {
/* We assume the screen and any other output has the same dpi */
@@ -45,36 +109,50 @@ css_fixed nscss_len2pt(css_fixed length, css_unit unit)
/* 1in = 25.4mm => 1mm = (72/25.4)pt */
case CSS_UNIT_MM: return FMUL(length,
FDIV(F_72, FLTTOFIX(25.4)));
+ /* 1in = 101.6q => 1mm = (72/101.6)pt */
+ case CSS_UNIT_Q: return FMUL(length,
+ FDIV(F_72, FLTTOFIX(101.6)));
case CSS_UNIT_PT: return length;
/* 1pc = 12pt */
case CSS_UNIT_PC: return FMUL(length, INTTOFIX(12));
+ case CSS_UNIT_VH: return FDIV(FMUL(FDIV((length * ctx->vh), F_100),
+ F_72), nscss_screen_dpi);
+ case CSS_UNIT_VW: return FDIV(FMUL(FDIV((length * ctx->vw), F_100),
+ F_72), nscss_screen_dpi);
default: break;
}
return 0;
}
-
/* exported interface documented in content/handlers/css/utils.h */
-css_fixed nscss_len2px(css_fixed length, css_unit unit,
+css_fixed nscss_len2px(
+ const nscss_len_ctx *ctx,
+ css_fixed length,
+ css_unit unit,
const css_computed_style *style)
{
/* We assume the screen and any other output has the same dpi */
css_fixed px_per_unit;
- assert(style != NULL || (unit != CSS_UNIT_EM && unit != CSS_UNIT_EX));
+ unit = css_utils__fudge_viewport_units(ctx, unit);
switch (unit) {
case CSS_UNIT_EM:
case CSS_UNIT_EX:
+ case CSS_UNIT_CAP:
+ case CSS_UNIT_CH:
+ case CSS_UNIT_IC:
{
css_fixed font_size = 0;
css_unit font_unit = CSS_UNIT_PT;
+ assert(style != NULL);
+
css_computed_font_size(style, &font_size, &font_unit);
/* Convert to points */
- font_size = nscss_len2pt(font_size, font_unit);
+ font_size = nscss_len2pt(ctx, font_size, font_unit);
/* Clamp to configured minimum */
if (font_size < FDIV(INTTOFIX(nsoption_int(font_min_size)),
F_10)) {
@@ -85,9 +163,22 @@ css_fixed nscss_len2px(css_fixed length, css_unit unit,
* 1in = 72pt => 1pt = (DPI/72)px */
px_per_unit = FDIV(FMUL(font_size, nscss_screen_dpi), F_72);
- /* Scale ex units: we use a fixed ratio of 1ex = 0.6em */
- if (unit == CSS_UNIT_EX)
+ /* Scale non-em units to em. We have fixed ratios. */
+ switch (unit) {
+ case CSS_UNIT_EX:
px_per_unit = FMUL(px_per_unit, FLTTOFIX(0.6));
+ break;
+ case CSS_UNIT_CAP:
+ px_per_unit = FMUL(px_per_unit, FLTTOFIX(0.9));
+ break;
+ case CSS_UNIT_CH:
+ px_per_unit = FMUL(px_per_unit, FLTTOFIX(0.4));
+ break;
+ case CSS_UNIT_IC:
+ px_per_unit = FMUL(px_per_unit, FLTTOFIX(1.1));
+ break;
+ default: break;
+ }
}
break;
case CSS_UNIT_PX:
@@ -105,6 +196,10 @@ css_fixed nscss_len2px(css_fixed length, css_unit unit,
case CSS_UNIT_MM:
px_per_unit = FDIV(nscss_screen_dpi, FLTTOFIX(25.4));
break;
+ /* 1in = 101.6q => 1q = (DPI/101.6)px */
+ case CSS_UNIT_Q:
+ px_per_unit = FDIV(nscss_screen_dpi, FLTTOFIX(101.6));
+ break;
/* 1in = 72pt => 1pt = (DPI/72)px */
case CSS_UNIT_PT:
px_per_unit = FDIV(nscss_screen_dpi, F_72);
@@ -113,6 +208,41 @@ css_fixed nscss_len2px(css_fixed length, css_unit unit,
case CSS_UNIT_PC:
px_per_unit = FDIV(nscss_screen_dpi, INTTOFIX(6));
break;
+ case CSS_UNIT_REM:
+ {
+ css_fixed font_size = 0;
+ css_unit font_unit = CSS_UNIT_PT;
+
+ assert(ctx->root_style != NULL);
+
+ css_computed_font_size(ctx->root_style,
+ &font_size, &font_unit);
+
+ /* Convert to points */
+ font_size = nscss_len2pt(ctx, font_size, font_unit);
+
+ /* Clamp to configured minimum */
+ if (font_size < FDIV(INTTOFIX(nsoption_int(font_min_size)),
F_10)) {
+ font_size = FDIV(INTTOFIX(nsoption_int(font_min_size)),
F_10);
+ }
+
+ /* Convert to pixels (manually, to maximise precision)
+ * 1in = 72pt => 1pt = (DPI/72)px */
+ px_per_unit = FDIV(FMUL(font_size, nscss_screen_dpi), F_72);
+ break;
+ }
+ /* 1rlh = <user_font_size>pt => 1rlh = (DPI/user_font_size)px */
+ case CSS_UNIT_RLH:
+ px_per_unit = FDIV(nscss_screen_dpi, FDIV(
+ INTTOFIX(nsoption_int(font_size)),
+ INTTOFIX(10)));
+ break;
+ case CSS_UNIT_VH:
+ px_per_unit = FDIV((length * ctx->vh), F_100);
+ break;
+ case CSS_UNIT_VW:
+ px_per_unit = FDIV((length * ctx->vw), F_100);
+ break;
default:
px_per_unit = 0;
break;
diff --git a/content/handlers/css/utils.h b/content/handlers/css/utils.h
index 21cb497..c8f4c82 100644
--- a/content/handlers/css/utils.h
+++ b/content/handlers/css/utils.h
@@ -27,24 +27,54 @@
extern css_fixed nscss_screen_dpi;
/**
+ * Length conversion context data.
+ */
+typedef struct nscss_len_ctx {
+ /**
+ * Viewport width in px.
+ * Only used if unit is vh, vw, vi, vb, vmin, or vmax.
+ */
+ int vw;
+ /**
+ * Viewport height in px.
+ * Only used if unit is vh, vw, vi, vb, vmin, or vmax.
+ */
+ int vh;
+ /**
+ * Computed style for the document root element.
+ * May be NULL if unit is not rem, or rlh.
+ */
+ const css_computed_style *root_style;
+} nscss_len_ctx;
+
+/**
* Convert an absolute CSS length to points.
*
- * \param[in] length Absolute CSS length.
- * \param[in] unit Unit of the length.
+ * \param[in] ctx Length conversion context.
+ * \param[in] length Absolute CSS length.
+ * \param[in] unit Unit of the length.
* \return length in points
*/
-css_fixed nscss_len2pt(css_fixed length, css_unit unit);
+css_fixed nscss_len2pt(
+ const nscss_len_ctx *ctx,
+ css_fixed length,
+ css_unit unit);
/**
* Convert a CSS length to pixels.
*
- * \param length Length to convert
- * \param unit Corresponding unit
- * \param style Computed style applying to length. May be NULL if unit is
- * neither em nor ex
+ * \param[in] ctx Length conversion context.
+ * \param[in] length Length to convert.
+ * \param[in] unit Corresponding unit.
+ * \param[in] style Computed style applying to length.
+ * May be NULL if unit is not em, ex, cap, ch, or ic.
* \return length in pixels
*/
-css_fixed nscss_len2px(css_fixed length, css_unit unit, const
css_computed_style *style);
+css_fixed nscss_len2px(
+ const nscss_len_ctx *ctx,
+ css_fixed length,
+ css_unit unit,
+ const css_computed_style *style);
/**
diff --git a/desktop/print.c b/desktop/print.c
index 54cc545..5c0333a 100644
--- a/desktop/print.c
+++ b/desktop/print.c
@@ -257,6 +257,11 @@ struct print_settings
*print_make_settings(print_configuration configuration,
struct print_settings *settings;
css_fixed length = 0;
css_unit unit = CSS_UNIT_MM;
+ nscss_len_ctx len_ctx = {
+ .vw = DEFAULT_PAGE_WIDTH,
+ .vh = DEFAULT_PAGE_HEIGHT,
+ .root_style = NULL,
+ };
switch (configuration){
case PRINT_DEFAULT:
@@ -272,17 +277,17 @@ struct print_settings
*print_make_settings(print_configuration configuration,
settings->scale = DEFAULT_EXPORT_SCALE;
length = INTTOFIX(DEFAULT_MARGIN_LEFT_MM);
- settings->margins[MARGINLEFT] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINLEFT] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
length = INTTOFIX(DEFAULT_MARGIN_RIGHT_MM);
- settings->margins[MARGINRIGHT] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINRIGHT] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
length = INTTOFIX(DEFAULT_MARGIN_TOP_MM);
- settings->margins[MARGINTOP] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINTOP] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
length = INTTOFIX(DEFAULT_MARGIN_BOTTOM_MM);
- settings->margins[MARGINBOTTOM] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINBOTTOM] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
break;
/* use settings from the Export options tab */
case PRINT_OPTIONS:
@@ -298,17 +303,17 @@ struct print_settings
*print_make_settings(print_configuration configuration,
settings->scale = (float)nsoption_int(export_scale) /
100;
length = INTTOFIX(nsoption_int(margin_left));
- settings->margins[MARGINLEFT] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINLEFT] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
length = INTTOFIX(nsoption_int(margin_right));
- settings->margins[MARGINRIGHT] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINRIGHT] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
length = INTTOFIX(nsoption_int(margin_top));
- settings->margins[MARGINTOP] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINTOP] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
length = INTTOFIX(nsoption_int(margin_bottom));
- settings->margins[MARGINBOTTOM] =
- nscss_len2px(length, unit, NULL);
+ settings->margins[MARGINBOTTOM] = nscss_len2px(
+ &len_ctx, length, unit, NULL);
break;
default:
return NULL;
diff --git a/render/box.c b/render/box.c
index 8b9c89e..c97e898 100644
--- a/render/box.c
+++ b/render/box.c
@@ -342,20 +342,27 @@ void box_bounds(struct box *box, struct rect *r)
/**
* Determine if a point lies within a box.
*
- * \param box box to consider
- * \param x coordinate relative to box
- * \param y coordinate relative to box
- * \param physically if function returning true, physically is set true if
- * point is within the box's physical dimensions and false
- * if the point is not within the box's physical dimensions
- * but is in the area defined by the box's descendants.
- * if function returning false, physically is undefined.
+ * \param[in] len_ctx CSS length conversion context to use.
+ * \param[in] box Box to consider
+ * \param[in] x Coordinate relative to box
+ * \param[in] y Coordinate relative to box
+ * \param[out] physically If function returning true, physically is set true
+ * iff point is within the box's physical dimensions
and
+ * false if the point is not within the box's physical
+ * dimensions but is in the area defined by the box's
+ * descendants. If function returns false, physically
+ * is undefined.
* \return true if the point is within the box or a descendant box
*
* This is a helper function for box_at_point().
*/
-static bool box_contains_point(struct box *box, int x, int y, bool *physically)
+static bool box_contains_point(
+ const nscss_len_ctx *len_ctx,
+ const struct box *box,
+ int x,
+ int y,
+ bool *physically)
{
css_computed_clip_rect css_rect;
@@ -382,25 +389,25 @@ static bool box_contains_point(struct box *box, int x,
int y, bool *physically)
/* Adjust rect to css clip region */
if (css_rect.left_auto == false) {
- r.x0 += FIXTOINT(nscss_len2px(
+ r.x0 += FIXTOINT(nscss_len2px(len_ctx,
css_rect.left, css_rect.lunit,
box->style));
}
if (css_rect.top_auto == false) {
- r.y0 += FIXTOINT(nscss_len2px(
+ r.y0 += FIXTOINT(nscss_len2px(len_ctx,
css_rect.top, css_rect.tunit,
box->style));
}
if (css_rect.right_auto == false) {
r.x1 = box->border[LEFT].width +
- FIXTOINT(nscss_len2px(
+ FIXTOINT(nscss_len2px(len_ctx,
css_rect.right,
css_rect.runit,
box->style));
}
if (css_rect.bottom_auto == false) {
r.y1 = box->border[TOP].width +
- FIXTOINT(nscss_len2px(
+ FIXTOINT(nscss_len2px(len_ctx,
css_rect.bottom,
css_rect.bunit,
box->style));
@@ -659,6 +666,7 @@ skip_children:
/**
* Find the boxes at a point.
*
+ * \param len_ctx CSS length conversion context for document.
* \param box box to search children of
* \param x point to find, in global document coordinates
* \param y point to find, in global document coordinates
@@ -674,13 +682,14 @@ skip_children:
* struct box *box = top_of_document_to_search;
* int box_x = 0, box_y = 0;
*
- * while ((box = box_at_point(box, x, y, &box_x, &box_y))) {
+ * while ((box = box_at_point(len_ctx, box, x, y, &box_x, &box_y))) {
* // process box
* }
* \endcode
*/
-struct box *box_at_point(struct box *box, const int x, const int y,
+struct box *box_at_point(const nscss_len_ctx *len_ctx,
+ struct box *box, const int x, const int y,
int *box_x, int *box_y)
{
bool skip_children;
@@ -690,7 +699,7 @@ struct box *box_at_point(struct box *box, const int x,
const int y,
skip_children = false;
while ((box = box_next_xy(box, box_x, box_y, skip_children))) {
- if (box_contains_point(box, x - *box_x, y - *box_y,
+ if (box_contains_point(len_ctx, box, x - *box_x, y - *box_y,
&physically)) {
*box_x -= scrollbar_get_offset(box->scroll_x);
*box_y -= scrollbar_get_offset(box->scroll_y);
diff --git a/render/box.h b/render/box.h
index 8208a6f..1af0a8b 100644
--- a/render/box.h
+++ b/render/box.h
@@ -91,6 +91,8 @@
#include <stdio.h>
#include <libcss/libcss.h>
+#include "content/handlers/css/utils.h"
+
struct content;
struct box;
struct browser_window;
@@ -328,7 +330,9 @@ void box_free(struct box *box);
void box_free_box(struct box *box);
void box_bounds(struct box *box, struct rect *r);
void box_coords(struct box *box, int *x, int *y);
-struct box *box_at_point(struct box *box, const int x, const int y,
+struct box *box_at_point(
+ const nscss_len_ctx *len_ctx,
+ struct box *box, const int x, const int y,
int *box_x, int *box_y);
struct box *box_pick_text_box(struct html_content *html,
int x, int y, int dir, int *dx, int *dy);
diff --git a/render/font.c b/render/font.c
index 94ef877..a769b47 100644
--- a/render/font.c
+++ b/render/font.c
@@ -131,8 +131,10 @@ static plot_font_flags_t plot_font_flags(enum
css_font_style_e style,
}
-/* exported function documented in render/font_internal.h */
-void font_plot_style_from_css(const css_computed_style *css,
+/* exported function documented in render/font.h */
+void font_plot_style_from_css(
+ const nscss_len_ctx *len_ctx,
+ const css_computed_style *css,
plot_font_style_t *fstyle)
{
lwc_string **families;
@@ -144,7 +146,7 @@ void font_plot_style_from_css(const css_computed_style *css,
css_computed_font_family(css, &families));
css_computed_font_size(css, &length, &unit);
- fstyle->size = FIXTOINT(FMUL(nscss_len2pt(length, unit),
+ fstyle->size = FIXTOINT(FMUL(nscss_len2pt(len_ctx, length, unit),
INTTOFIX(FONT_SIZE_SCALE)));
/* Clamp font size to configured minimum */
diff --git a/render/font.h b/render/font.h
index fba368a..52f5a62 100644
--- a/render/font.h
+++ b/render/font.h
@@ -32,10 +32,13 @@ struct plot_font_style;
/**
* Populate a font style using data from a computed CSS style
*
- * \param css Computed style to consider
- * \param fstyle Font style to populate
+ * \param len_ctx Length conversion context
+ * \param css Computed style to consider
+ * \param fstyle Font style to populate
*/
-void font_plot_style_from_css(const css_computed_style *css,
- struct plot_font_style *fstyle);
+void font_plot_style_from_css(
+ const nscss_len_ctx *len_ctx,
+ const css_computed_style *css,
+ struct plot_font_style *fstyle);
#endif
diff --git a/render/html.c b/render/html.c
index 3cfc5e2..3160e3a 100644
--- a/render/html.c
+++ b/render/html.c
@@ -1398,6 +1398,10 @@ static void html_reformat(struct content *c, int width,
int height)
htmlc->reflowing = true;
+ htmlc->len_ctx.vw = width;
+ htmlc->len_ctx.vh = width;
+ htmlc->len_ctx.root_style = htmlc->layout->style;
+
layout_document(htmlc, width, height);
layout = htmlc->layout;
@@ -1768,7 +1772,8 @@ html_get_contextual_content(struct content *c, int x, int
y,
struct box *next;
int box_x = 0, box_y = 0;
- while ((next = box_at_point(box, x, y, &box_x, &box_y)) != NULL) {
+ while ((next = box_at_point(&html->len_ctx, box, x, y,
+ &box_x, &box_y)) != NULL) {
box = next;
/* hidden boxes are ignored */
@@ -1845,7 +1850,8 @@ html_scroll_at_point(struct content *c, int x, int y, int
scrx, int scry)
/* TODO: invert order; visit deepest box first */
- while ((next = box_at_point(box, x, y, &box_x, &box_y)) != NULL) {
+ while ((next = box_at_point(&html->len_ctx, box, x, y,
+ &box_x, &box_y)) != NULL) {
box = next;
if (box->style && css_computed_visibility(box->style) ==
@@ -1987,7 +1993,8 @@ static bool html_drop_file_at_point(struct content *c,
int x, int y, char *file)
int box_x = 0, box_y = 0;
/* Scan box tree for boxes that can handle drop */
- while ((next = box_at_point(box, x, y, &box_x, &box_y)) != NULL) {
+ while ((next = box_at_point(&html->len_ctx, box, x, y,
+ &box_x, &box_y)) != NULL) {
box = next;
if (box->style && css_computed_visibility(box->style) ==
diff --git a/render/html_interaction.c b/render/html_interaction.c
index 30adaa0..2d14ed2 100644
--- a/render/html_interaction.c
+++ b/render/html_interaction.c
@@ -208,7 +208,7 @@ static size_t html_selection_drag_end(struct html_content
*html,
if (box) {
plot_font_style_t fstyle;
- font_plot_style_from_css(box->style, &fstyle);
+ font_plot_style_from_css(&html->len_ctx, box->style, &fstyle);
guit->layout->position(&fstyle, box->text, box->length,
dx, &idx, &pixel_offset);
@@ -415,7 +415,8 @@ void html_mouse_action(struct content *c, struct
browser_window *bw,
size_t idx;
plot_font_style_t fstyle;
- font_plot_style_from_css(box->style, &fstyle);
+ font_plot_style_from_css(&html->len_ctx,
+ box->style, &fstyle);
guit->layout->position(&fstyle,
box->text, box->length,
@@ -649,7 +650,8 @@ void html_mouse_action(struct content *c, struct
browser_window *bw,
text_box = box;
text_box_x = box_x;
}
- } while ((box = box_at_point(box, x, y, &box_x, &box_y)) != NULL);
+ } while ((box = box_at_point(&html->len_ctx, box, x, y,
+ &box_x, &box_y)) != NULL);
/* use of box_x, box_y, or content below this point is probably a
* mistake; they will refer to the last box returned by box_at_point */
@@ -910,8 +912,8 @@ void html_mouse_action(struct content *c, struct
browser_window *bw,
int pixel_offset;
size_t idx;
- font_plot_style_from_css(text_box->style,
- &fstyle);
+ font_plot_style_from_css(&html->len_ctx,
+ text_box->style, &fstyle);
guit->layout->position(&fstyle,
text_box->text,
diff --git a/render/html_internal.h b/render/html_internal.h
index 2f84cf8..66ecb2b 100644
--- a/render/html_internal.h
+++ b/render/html_internal.h
@@ -26,6 +26,7 @@
#include <libcss/libcss.h>
+#include "content/handlers/css/utils.h"
#include "content/content_protected.h"
#include "desktop/selection.h"
#include "render/html.h"
@@ -94,6 +95,9 @@ typedef struct html_content {
/** Base target */
char *base_target;
+ /** CSS length conversion context for document. */
+ nscss_len_ctx len_ctx;
+
/** Content has been aborted in the LOADING state */
bool aborted;
diff --git a/render/html_object.c b/render/html_object.c
index e98bdba..fb9e7b0 100644
--- a/render/html_object.c
+++ b/render/html_object.c
@@ -227,7 +227,8 @@ html_object_callback(hlcache_handle *object,
if (hunit == CSS_UNIT_PCT) {
l = (width - w) * hpos / INTTOFIX(100);
} else {
- l = FIXTOINT(nscss_len2px(hpos, hunit,
+ l = FIXTOINT(nscss_len2px(&c->len_ctx,
+ hpos, hunit,
box->style));
}
@@ -235,7 +236,8 @@ html_object_callback(hlcache_handle *object,
if (vunit == CSS_UNIT_PCT) {
t = (height - h) * vpos / INTTOFIX(100);
} else {
- t = FIXTOINT(nscss_len2px(vpos, vunit,
+ t = FIXTOINT(nscss_len2px(&c->len_ctx,
+ vpos, vunit,
box->style));
}
diff --git a/render/html_redraw.c b/render/html_redraw.c
index 2f87306..9a97e5e 100644
--- a/render/html_redraw.c
+++ b/render/html_redraw.c
@@ -521,12 +521,14 @@ static bool html_redraw_radio(int x, int y, int width,
int height,
* \param box box of input
* \param scale scale for redraw
* \param background_colour current background colour
+ * \param len_ctx Length conversion context
* \param ctx current redraw context
* \return true if successful, false otherwise
*/
static bool html_redraw_file(int x, int y, int width, int height,
struct box *box, float scale, colour background_colour,
+ const nscss_len_ctx *len_ctx,
const struct redraw_context *ctx)
{
int text_width;
@@ -535,7 +537,7 @@ static bool html_redraw_file(int x, int y, int width, int
height,
plot_font_style_t fstyle;
nserror res;
- font_plot_style_from_css(box->style, &fstyle);
+ font_plot_style_from_css(len_ctx, box->style, &fstyle);
fstyle.background = background_colour;
if (box->gadget->value) {
@@ -578,13 +580,16 @@ static bool html_redraw_file(int x, int y, int width, int
height,
* \param clip current clip rectangle
* \param background_colour current background colour
* \param background box containing background details (usually \a box)
- * \param ctx current redraw context
+ * \param len_ctx Length conversion context
+ * \param ctx current redraw context
* \return true if successful, false otherwise
*/
static bool html_redraw_background(int x, int y, struct box *box, float scale,
const struct rect *clip, colour *background_colour,
- struct box *background, const struct redraw_context *ctx)
+ struct box *background,
+ const nscss_len_ctx *len_ctx,
+ const struct redraw_context *ctx)
{
bool repeat_x = false;
bool repeat_y = false;
@@ -660,7 +665,7 @@ static bool html_redraw_background(int x, int y, struct box
*box, float scale,
content_get_width(background->background)) *
scale * FIXTOFLT(hpos) / 100.;
} else {
- x += (int) (FIXTOFLT(nscss_len2px(hpos, hunit,
+ x += (int) (FIXTOFLT(nscss_len2px(len_ctx, hpos, hunit,
background->style)) * scale);
}
@@ -669,7 +674,7 @@ static bool html_redraw_background(int x, int y, struct box
*box, float scale,
content_get_height(background->background)) *
scale * FIXTOFLT(vpos) / 100.;
} else {
- y += (int) (FIXTOFLT(nscss_len2px(vpos, vunit,
+ y += (int) (FIXTOFLT(nscss_len2px(len_ctx, vpos, vunit,
background->style)) * scale);
}
}
@@ -802,13 +807,15 @@ static bool html_redraw_background(int x, int y, struct
box *box, float scale,
* \param first true if this is the first rectangle associated with the
inline
* \param last true if this is the last rectangle associated with the inline
* \param background_colour updated to current background colour if plotted
- * \param ctx current redraw context
+ * \param len_ctx Length conversion context
+ * \param ctx current redraw context
* \return true if successful, false otherwise
*/
static bool html_redraw_inline_background(int x, int y, struct box *box,
float scale, const struct rect *clip, struct rect b,
bool first, bool last, colour *background_colour,
+ const nscss_len_ctx *len_ctx,
const struct redraw_context *ctx)
{
struct rect r = *clip;
@@ -869,7 +876,7 @@ static bool html_redraw_inline_background(int x, int y,
struct box *box,
plot_content = false;
}
} else {
- x += (int) (FIXTOFLT(nscss_len2px(hpos, hunit,
+ x += (int) (FIXTOFLT(nscss_len2px(len_ctx, hpos, hunit,
box->style)) * scale);
}
@@ -878,7 +885,7 @@ static bool html_redraw_inline_background(int x, int y,
struct box *box,
content_get_height(box->background) *
scale) * FIXTOFLT(vpos) / 100.;
} else {
- y += (int) (FIXTOFLT(nscss_len2px(vpos, vunit,
+ y += (int) (FIXTOFLT(nscss_len2px(len_ctx, vpos, vunit,
box->style)) * scale);
}
}
@@ -1120,7 +1127,7 @@ static bool html_redraw_text_box(const html_content
*html, struct box *box,
bool excluded = (box->object != NULL);
plot_font_style_t fstyle;
- font_plot_style_from_css(box->style, &fstyle);
+ font_plot_style_from_css(&html->len_ctx, box->style, &fstyle);
fstyle.background = current_background_color;
if (!text_redraw(box->text, box->length, box->byte_offset,
@@ -1382,21 +1389,25 @@ bool html_redraw_box(const html_content *html, struct
box *box,
/* We have an absolutly positioned box with a clip rect */
if (css_rect.left_auto == false)
r.x0 = x - border_left + FIXTOINT(nscss_len2px(
+ &html->len_ctx,
css_rect.left, css_rect.lunit,
box->style));
if (css_rect.top_auto == false)
r.y0 = y - border_top + FIXTOINT(nscss_len2px(
+ &html->len_ctx,
css_rect.top, css_rect.tunit,
box->style));
if (css_rect.right_auto == false)
r.x1 = x - border_left + FIXTOINT(nscss_len2px(
+ &html->len_ctx,
css_rect.right, css_rect.runit,
box->style));
if (css_rect.bottom_auto == false)
r.y1 = y - border_top + FIXTOINT(nscss_len2px(
+ &html->len_ctx,
css_rect.bottom, css_rect.bunit,
box->style));
@@ -1486,7 +1497,8 @@ bool html_redraw_box(const html_content *html, struct box
*box,
if ((p.x0 < p.x1) && (p.y0 < p.y1)) {
/* plot background */
if (!html_redraw_background(x, y, box, scale, &p,
- ¤t_background_color, bg_box, ctx))
+ ¤t_background_color, bg_box,
+ &html->len_ctx, ctx))
return false;
/* restore previous graphics window */
if (ctx->plot->clip(ctx, &r) != NSERROR_OK)
@@ -1565,7 +1577,8 @@ bool html_redraw_box(const html_content *html, struct box
*box,
if (!html_redraw_inline_background(
x, y, box, scale, &p, b,
first, false,
- ¤t_background_color, ctx))
+ ¤t_background_color,
+ &html->len_ctx, ctx))
return false;
/* restore previous graphics window */
if (ctx->plot->clip(ctx, &r) != NSERROR_OK)
@@ -1597,7 +1610,8 @@ bool html_redraw_box(const html_content *html, struct box
*box,
/* plot background and borders for last rectangle of
* the inline */
if (!html_redraw_inline_background(x, ib_y, box, scale, &p, b,
- first, true, ¤t_background_color, ctx))
+ first, true, ¤t_background_color,
+ &html->len_ctx, ctx))
return false;
/* restore previous graphics window */
if (ctx->plot->clip(ctx, &r) != NSERROR_OK)
@@ -1768,7 +1782,6 @@ bool html_redraw_box(const html_content *html, struct box
*box,
obj, sizeof(obj) - 1) != NSERROR_OK)
return false;
}
-
} else if (box->iframe) {
/* Offset is passed to browser window redraw unscaled */
@@ -1789,7 +1802,7 @@ bool html_redraw_box(const html_content *html, struct box
*box,
} else if (box->gadget && box->gadget->type == GADGET_FILE) {
if (!html_redraw_file(x + padding_left, y + padding_top,
width, height, box, scale,
- current_background_color, ctx))
+ current_background_color, &html->len_ctx, ctx))
return false;
} else if (box->gadget &&
diff --git a/render/layout.c b/render/layout.c
index 83dbc53..d301e38 100644
--- a/render/layout.c
+++ b/render/layout.c
@@ -69,8 +69,14 @@
#define FPCT_OF_INT_TOINT(a, b) (FIXTOINT(FDIV((a * b), F_100)))
/* forward declaration to break cycles */
-static bool layout_block_context(struct box *block, int viewport_height,
html_content *content);
-static void layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func);
+static bool layout_block_context(
+ struct box *block,
+ int viewport_height,
+ html_content *content);
+static void layout_minmax_block(
+ struct box *block,
+ const struct gui_layout_table *font_func,
+ const html_content *content);
/**
@@ -179,7 +185,9 @@ layout_get_object_dimensions(struct box *box,
* \param width width of containing block
* \return length of indent
*/
-static int layout_text_indent(const css_computed_style *style, int width)
+static int layout_text_indent(
+ const nscss_len_ctx *len_ctx,
+ const css_computed_style *style, int width)
{
css_fixed value = 0;
css_unit unit = CSS_UNIT_PX;
@@ -189,7 +197,7 @@ static int layout_text_indent(const css_computed_style
*style, int width)
if (unit == CSS_UNIT_PCT) {
return FPCT_OF_INT_TOINT(value, width);
} else {
- return FIXTOINT(nscss_len2px(value, unit, style));
+ return FIXTOINT(nscss_len2px(len_ctx, value, unit, style));
}
}
@@ -197,6 +205,7 @@ static int layout_text_indent(const css_computed_style
*style, int width)
/**
* Determine width of margin, borders, and padding on one side of a box.
*
+ * \param len_ctx CSS length conversion context for document
* \param style style to measure
* \param side side of box to measure
* \param margin whether margin width is required
@@ -206,7 +215,8 @@ static int layout_text_indent(const css_computed_style
*style, int width)
* \param frac increased by sum of fractional margin and padding
*/
static void
-calculate_mbp_width(const css_computed_style *style,
+calculate_mbp_width(const nscss_len_ctx *len_ctx,
+ const css_computed_style *style,
unsigned int side,
bool margin,
bool border,
@@ -217,19 +227,19 @@ calculate_mbp_width(const css_computed_style *style,
typedef uint8_t (*len_func)(const css_computed_style *style,
css_fixed *length, css_unit *unit);
- static len_func margin_funcs[4] = {
+ static const len_func margin_funcs[4] = {
css_computed_margin_top,
css_computed_margin_right,
css_computed_margin_bottom,
css_computed_margin_left
};
- static len_func padding_funcs[4] = {
+ static const len_func padding_funcs[4] = {
css_computed_padding_top,
css_computed_padding_right,
css_computed_padding_bottom,
css_computed_padding_left
};
- static struct {
+ static const struct {
len_func width;
uint8_t (*style)(const css_computed_style *style);
} border_funcs[4] = {
@@ -257,8 +267,8 @@ calculate_mbp_width(const css_computed_style *style,
if (unit == CSS_UNIT_PCT) {
*frac += FIXTOINT(FDIV(value, F_100));
} else {
- *fixed += FIXTOINT(nscss_len2px(value, unit,
- style));
+ *fixed += FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
}
}
@@ -269,7 +279,8 @@ calculate_mbp_width(const css_computed_style *style,
CSS_BORDER_STYLE_NONE) {
border_funcs[side].width(style, &value, &unit);
- *fixed += FIXTOINT(nscss_len2px(value, unit, style));
+ *fixed += FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
}
@@ -279,7 +290,8 @@ calculate_mbp_width(const css_computed_style *style,
if (unit == CSS_UNIT_PCT) {
*frac += FIXTOINT(FDIV(value, F_100));
} else {
- *fixed += FIXTOINT(nscss_len2px(value, unit, style));
+ *fixed += FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
}
}
@@ -290,12 +302,13 @@ calculate_mbp_width(const css_computed_style *style,
*
* \param table box of type TABLE
* \param font_func Font functions
- * \param content The HTML content being layed out.
+ * \param content The HTML content we are laying out.
* \post table->min_width and table->max_width filled in,
* 0 <= table->min_width <= table->max_width
*/
-static void
-layout_minmax_table(struct box *table, const struct gui_layout_table
*font_func)
+static void layout_minmax_table(struct box *table,
+ const struct gui_layout_table *font_func,
+ const html_content *content)
{
unsigned int i, j;
int border_spacing_h = 0;
@@ -328,7 +341,8 @@ layout_minmax_table(struct box *table, const struct
gui_layout_table *font_func)
css_computed_border_spacing(table->style, &h, &hu, &v, &vu);
- border_spacing_h = FIXTOINT(nscss_len2px(h, hu, table->style));
+ border_spacing_h = FIXTOINT(nscss_len2px(&content->len_ctx,
+ h, hu, table->style));
}
/* 1st pass: consider cells with colspan 1 only */
@@ -344,7 +358,7 @@ layout_minmax_table(struct box *table, const struct
gui_layout_table *font_func)
if (cell->columns != 1)
continue;
- layout_minmax_block(cell, font_func);
+ layout_minmax_block(cell, font_func, content);
i = cell->start_column;
if (col[i].positioned)
@@ -367,7 +381,7 @@ layout_minmax_table(struct box *table, const struct
gui_layout_table *font_func)
if (cell->columns == 1)
continue;
- layout_minmax_block(cell, font_func);
+ layout_minmax_block(cell, font_func, content);
i = cell->start_column;
/* find min width so far of spanned columns, and count
@@ -433,7 +447,8 @@ layout_minmax_table(struct box *table, const struct
gui_layout_table *font_func)
/* fixed width takes priority, unless it is too narrow */
wtype = css_computed_width(table->style, &value, &unit);
if (wtype == CSS_WIDTH_SET && unit != CSS_UNIT_PCT) {
- int width = FIXTOINT(nscss_len2px(value, unit, table->style));
+ int width = FIXTOINT(nscss_len2px(&content->len_ctx,
+ value, unit, table->style));
if (table_min < width)
table_min = width;
if (table_max < width)
@@ -441,9 +456,11 @@ layout_minmax_table(struct box *table, const struct
gui_layout_table *font_func)
}
/* add margins, border, padding to min, max widths */
- calculate_mbp_width(table->style, LEFT, true, true, true,
+ calculate_mbp_width(&content->len_ctx,
+ table->style, LEFT, true, true, true,
&extra_fixed, &extra_frac);
- calculate_mbp_width(table->style, RIGHT, true, true, true,
+ calculate_mbp_width(&content->len_ctx,
+ table->style, RIGHT, true, true, true,
&extra_fixed, &extra_frac);
if (extra_fixed < 0)
extra_fixed = 0;
@@ -478,7 +495,8 @@ layout_minmax_line(struct box *first,
int *line_max,
bool first_line,
bool *line_has_height,
- const struct gui_layout_table *font_func)
+ const struct gui_layout_table *font_func,
+ const html_content *content)
{
int min = 0, max = 0, width, height, fixed;
float frac;
@@ -524,9 +542,11 @@ layout_minmax_line(struct box *first,
if (b->type == BOX_FLOAT_LEFT || b->type == BOX_FLOAT_RIGHT) {
assert(b->children);
if (b->children->type == BOX_BLOCK)
- layout_minmax_block(b->children, font_func);
+ layout_minmax_block(b->children, font_func,
+ content);
else
- layout_minmax_table(b->children, font_func);
+ layout_minmax_table(b->children, font_func,
+ content);
b->min_width = b->children->min_width;
b->max_width = b->children->max_width;
if (min < b->min_width)
@@ -536,7 +556,7 @@ layout_minmax_line(struct box *first,
}
if (b->type == BOX_INLINE_BLOCK) {
- layout_minmax_block(b, font_func);
+ layout_minmax_block(b, font_func, content);
if (min < b->min_width)
min = b->min_width;
max += b->max_width;
@@ -547,16 +567,18 @@ layout_minmax_line(struct box *first,
}
assert(b->style);
- font_plot_style_from_css(b->style, &fstyle);
+ font_plot_style_from_css(&content->len_ctx, b->style, &fstyle);
if (b->type == BOX_INLINE && !b->object &&
!(b->flags & REPLACE_DIM) &&
!(b->flags & IFRAME)) {
fixed = frac = 0;
- calculate_mbp_width(b->style, LEFT, true, true, true,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, LEFT, true, true, true,
&fixed, &frac);
if (!b->inline_end)
- calculate_mbp_width(b->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, RIGHT,
true, true, true,
&fixed, &frac);
if (0 < fixed)
@@ -565,7 +587,8 @@ layout_minmax_line(struct box *first,
/* \todo update min width, consider fractional extra */
} else if (b->type == BOX_INLINE_END) {
fixed = frac = 0;
- calculate_mbp_width(b->inline_end->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ b->inline_end->style, RIGHT,
true, true, true,
&fixed, &frac);
if (0 < fixed)
@@ -686,15 +709,17 @@ layout_minmax_line(struct box *first,
width = AUTO;
} else {
- width = FIXTOINT(nscss_len2px(value, unit,
- b->style));
+ width = FIXTOINT(nscss_len2px(&content->len_ctx,
+ value, unit, b->style));
if (bs == CSS_BOX_SIZING_BORDER_BOX) {
fixed = frac = 0;
- calculate_mbp_width(block->style, LEFT,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, LEFT,
false, true, true,
&fixed, &frac);
- calculate_mbp_width(block->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, RIGHT,
false, true, true,
&fixed, &frac);
if (width < fixed) {
@@ -711,7 +736,8 @@ layout_minmax_line(struct box *first,
/* height */
htype = css_computed_height(b->style, &value, &unit);
if (htype == CSS_HEIGHT_SET) {
- height = FIXTOINT(nscss_len2px(value, unit, b->style));
+ height = FIXTOINT(nscss_len2px(&content->len_ctx,
+ value, unit, b->style));
} else {
height = AUTO;
}
@@ -727,17 +753,21 @@ layout_minmax_line(struct box *first,
fixed = frac = 0;
if (bs == CSS_BOX_SIZING_BORDER_BOX) {
- calculate_mbp_width(b->style, LEFT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, LEFT,
true, false, false,
&fixed, &frac);
- calculate_mbp_width(b->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, RIGHT,
true, false, false,
&fixed, &frac);
} else {
- calculate_mbp_width(b->style, LEFT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, LEFT,
true, true, true,
&fixed, &frac);
- calculate_mbp_width(b->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, RIGHT,
true, true, true,
&fixed, &frac);
}
@@ -750,17 +780,21 @@ layout_minmax_line(struct box *first,
fixed = frac = 0;
if (bs == CSS_BOX_SIZING_BORDER_BOX) {
- calculate_mbp_width(b->style, LEFT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, LEFT,
true, false, false,
&fixed, &frac);
- calculate_mbp_width(b->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, RIGHT,
true, false, false,
&fixed, &frac);
} else {
- calculate_mbp_width(b->style, LEFT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, LEFT,
true, true, true,
&fixed, &frac);
- calculate_mbp_width(b->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ b->style, RIGHT,
true, true, true,
&fixed, &frac);
}
@@ -771,8 +805,10 @@ layout_minmax_line(struct box *first,
} else {
/* form control with no object */
if (width == AUTO)
- width = FIXTOINT(nscss_len2px(INTTOFIX(1),
- CSS_UNIT_EM, b->style));
+ width = FIXTOINT(nscss_len2px(
+ &content->len_ctx,
+ INTTOFIX(1), CSS_UNIT_EM,
+ b->style));
}
if (min < width)
@@ -785,7 +821,7 @@ layout_minmax_line(struct box *first,
if (first_line) {
/* todo: handle percentage values properly */
/* todo: handle text-indent interaction with floats */
- int text_indent = layout_text_indent(
+ int text_indent = layout_text_indent(&content->len_ctx,
first->parent->parent->style, 100);
min = (min + text_indent < 0) ? 0 : min + text_indent;
max = (max + text_indent < 0) ? 0 : max + text_indent;
@@ -815,7 +851,8 @@ layout_minmax_line(struct box *first,
static void
layout_minmax_inline_container(struct box *inline_container,
bool *has_height,
- const struct gui_layout_table *font_func)
+ const struct gui_layout_table *font_func,
+ const html_content *content)
{
struct box *child;
int line_min = 0, line_max = 0;
@@ -833,7 +870,8 @@ layout_minmax_inline_container(struct box *inline_container,
for (child = inline_container->children; child; ) {
child = layout_minmax_line(child, &line_min, &line_max,
- first_line, &line_has_height, font_func);
+ first_line, &line_has_height, font_func,
+ content);
if (min < line_min)
min = line_min;
if (max < line_max)
@@ -856,11 +894,14 @@ layout_minmax_inline_container(struct box
*inline_container,
*
* \param block box of type BLOCK, INLINE_BLOCK, or TABLE_CELL
* \param font_func font functions
+ * \param content The HTML content being layed out.
* \post block->min_width and block->max_width filled in,
* 0 <= block->min_width <= block->max_width
*/
-static void
-layout_minmax_block(struct box *block, const struct gui_layout_table
*font_func)
+static void layout_minmax_block(
+ struct box *block,
+ const struct gui_layout_table *font_func,
+ const html_content *content)
{
struct box *child;
int min = 0, max = 0;
@@ -913,7 +954,8 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
css_fixed size = INTTOFIX(10);
css_unit unit = CSS_UNIT_EM;
- min = max = FIXTOINT(nscss_len2px(size, unit, block->style));
+ min = max = FIXTOINT(nscss_len2px(&content->len_ctx,
+ size, unit, block->style));
block->flags |= HAS_HEIGHT;
}
@@ -926,7 +968,8 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
/* form checkbox or radio button
* if width is AUTO, set it to 1em */
- min = max = FIXTOINT(nscss_len2px(size, unit, block->style));
+ min = max = FIXTOINT(nscss_len2px(&content->len_ctx,
+ size, unit, block->style));
block->flags |= HAS_HEIGHT;
}
@@ -934,7 +977,7 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
if (block->object) {
if (content_get_type(block->object) == CONTENT_HTML) {
layout_minmax_block(html_get_box_tree(block->object),
- font_func);
+ font_func, content);
min = html_get_box_tree(block->object)->min_width;
max = html_get_box_tree(block->object)->max_width;
} else {
@@ -951,7 +994,8 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
for (child = block->children; child; child = child->next) {
switch (child->type) {
case BOX_BLOCK:
- layout_minmax_block(child, font_func);
+ layout_minmax_block(child, font_func,
+ content);
if (child->flags & HAS_HEIGHT)
child_has_height = true;
break;
@@ -960,7 +1004,8 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
child->flags |= NEED_MIN;
layout_minmax_inline_container(child,
- &child_has_height, font_func);
+ &child_has_height, font_func,
+ content);
if (child_has_height &&
child ==
child->parent->children) {
@@ -968,7 +1013,8 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
}
break;
case BOX_TABLE:
- layout_minmax_table(child, font_func);
+ layout_minmax_table(child, font_func,
+ content);
/* todo: fix for zero height tables */
child_has_height = true;
child->flags |= MAKE_HEIGHT;
@@ -1006,14 +1052,17 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
/* fixed width takes priority */
if (block->type != BOX_TABLE_CELL && wtype == CSS_WIDTH_SET &&
wunit != CSS_UNIT_PCT) {
- min = max = FIXTOINT(nscss_len2px(width, wunit, block->style));
+ min = max = FIXTOINT(nscss_len2px(&content->len_ctx,
+ width, wunit, block->style));
if (bs == CSS_BOX_SIZING_BORDER_BOX) {
int border_box_fixed = 0;
float border_box_frac = 0;
- calculate_mbp_width(block->style, LEFT,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, LEFT,
false, true, true,
&border_box_fixed, &border_box_frac);
- calculate_mbp_width(block->style, RIGHT,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, RIGHT,
false, true, true,
&border_box_fixed, &border_box_frac);
if (min < border_box_fixed) {
@@ -1033,14 +1082,18 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
* and paddings are wrong. */
if (bs == CSS_BOX_SIZING_BORDER_BOX && wtype == CSS_WIDTH_SET) {
/* Border and padding included in width, so just get margin */
- calculate_mbp_width(block->style, LEFT, true, false, false,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, LEFT, true, false, false,
&extra_fixed, &extra_frac);
- calculate_mbp_width(block->style, RIGHT, true, false, false,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, RIGHT, true, false, false,
&extra_fixed, &extra_frac);
} else {
- calculate_mbp_width(block->style, LEFT, true, true, true,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, LEFT, true, true, true,
&extra_fixed, &extra_frac);
- calculate_mbp_width(block->style, RIGHT, true, true, true,
+ calculate_mbp_width(&content->len_ctx,
+ block->style, RIGHT, true, true, true,
&extra_fixed, &extra_frac);
}
if (extra_fixed < 0)
@@ -1070,6 +1123,7 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
*
* This turns the specified dimension into a content-box dimension.
*
+ * \param len_ctx Length conversion context
* \param box gadget to adjust dimensions of
* \param available_width width of containing block
* \param setwidth set true if the dimension to be tweaked is a width,
@@ -1079,6 +1133,7 @@ layout_minmax_block(struct box *block, const struct
gui_layout_table *font_func)
* gadget properties.
*/
static void layout_handle_box_sizing(
+ const nscss_len_ctx *len_ctx,
struct box *box,
int available_width,
bool setwidth,
@@ -1095,9 +1150,11 @@ static void layout_handle_box_sizing(
int fixed = 0;
float frac = 0;
- calculate_mbp_width(box->style, setwidth ? LEFT : TOP,
+ calculate_mbp_width(len_ctx, box->style,
+ setwidth ? LEFT : TOP,
false, true, true, &fixed, &frac);
- calculate_mbp_width(box->style, setwidth ? RIGHT : BOTTOM,
+ calculate_mbp_width(len_ctx, box->style,
+ setwidth ? RIGHT : BOTTOM,
false, true, true, &fixed, &frac);
orig -= frac * available_width + fixed;
*dimension = orig > 0 ? orig : 0;
@@ -1108,6 +1165,7 @@ static void layout_handle_box_sizing(
/**
* Calculate width, height, and thickness of margins, paddings, and borders.
*
+ * \param len_ctx Length conversion context
* \param available_width width of containing block
* \param viewport_height height of viewport in pixels or -ve if unknown
* \param box current box
@@ -1124,7 +1182,8 @@ static void layout_handle_box_sizing(
* \param border filled with border widths, may be NULL
*/
static void
-layout_find_dimensions(int available_width,
+layout_find_dimensions(const nscss_len_ctx *len_ctx,
+ int available_width,
int viewport_height,
struct box *box,
const css_computed_style *style,
@@ -1153,15 +1212,15 @@ layout_find_dimensions(int available_width,
*width = FPCT_OF_INT_TOINT(
value, available_width);
} else {
- *width = FIXTOINT(nscss_len2px(value, unit,
- style));
+ *width = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
} else {
*width = AUTO;
}
if (*width != AUTO) {
- layout_handle_box_sizing(box, available_width,
+ layout_handle_box_sizing(len_ctx, box, available_width,
true, width);
}
}
@@ -1241,15 +1300,15 @@ layout_find_dimensions(int available_width,
*height = AUTO;
}
} else {
- *height = FIXTOINT(nscss_len2px(value, unit,
- style));
+ *height = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
} else {
*height = AUTO;
}
if (*height != AUTO) {
- layout_handle_box_sizing(box, available_width,
+ layout_handle_box_sizing(len_ctx, box, available_width,
false, height);
}
}
@@ -1266,8 +1325,8 @@ layout_find_dimensions(int available_width,
*max_width = FPCT_OF_INT_TOINT(value,
available_width);
} else {
- *max_width = FIXTOINT(nscss_len2px(value, unit,
- style));
+ *max_width = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
} else {
/* Inadmissible */
@@ -1275,7 +1334,7 @@ layout_find_dimensions(int available_width,
}
if (*max_width != -1) {
- layout_handle_box_sizing(box, available_width,
+ layout_handle_box_sizing(len_ctx, box, available_width,
true, max_width);
}
}
@@ -1292,8 +1351,8 @@ layout_find_dimensions(int available_width,
*min_width = FPCT_OF_INT_TOINT(value,
available_width);
} else {
- *min_width = FIXTOINT(nscss_len2px(value, unit,
- style));
+ *min_width = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
} else {
/* Inadmissible */
@@ -1301,7 +1360,7 @@ layout_find_dimensions(int available_width,
}
if (*min_width != 0) {
- layout_handle_box_sizing(box, available_width,
+ layout_handle_box_sizing(len_ctx, box, available_width,
true, min_width);
}
}
@@ -1318,8 +1377,8 @@ layout_find_dimensions(int available_width,
/* TODO: handle percentage */
*max_height = -1;
} else {
- *max_height = FIXTOINT(nscss_len2px(value, unit,
- style));
+ *max_height = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
} else {
/* Inadmissible */
@@ -1339,8 +1398,8 @@ layout_find_dimensions(int available_width,
/* TODO: handle percentage */
*min_height = 0;
} else {
- *min_height = FIXTOINT(nscss_len2px(value, unit,
- style));
+ *min_height = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
} else {
/* Inadmissible */
@@ -1378,8 +1437,9 @@ layout_find_dimensions(int available_width,
margin[i] = FPCT_OF_INT_TOINT(value,
available_width);
} else {
- margin[i] = FIXTOINT(nscss_len2px(value,
- unit, style));
+ margin[i] = FIXTOINT(nscss_len2px(
+ len_ctx,
+ value, unit, style));
}
} else {
margin[i] = AUTO;
@@ -1411,8 +1471,8 @@ layout_find_dimensions(int available_width,
padding[i] = FPCT_OF_INT_TOINT(value,
available_width);
} else {
- padding[i] = FIXTOINT(nscss_len2px(value, unit,
- style));
+ padding[i] = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
}
}
@@ -1459,8 +1519,8 @@ layout_find_dimensions(int available_width,
/* spec unclear: following Mozilla */
border[i].width = 0;
else
- border[i].width = FIXTOINT(nscss_len2px(value,
- unit, style));
+ border[i].width = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, style));
/* Special case for border-collapse: make all borders
* on table/table-row-group/table-row zero width. */
@@ -1478,6 +1538,7 @@ layout_find_dimensions(int available_width,
/**
* Find next block that current margin collapses to.
*
+ * \param len_ctx Length conversion context
* \param box box to start tree-order search from (top margin is included)
* \param block box responsible for current block fromatting context
* \param viewport_height height of viewport in px
@@ -1486,7 +1547,8 @@ layout_find_dimensions(int available_width,
* \return next box that current margin collapses to, or NULL if none.
*/
static struct box*
-layout_next_margin_block(struct box *box,
+layout_next_margin_block(const nscss_len_ctx *len_ctx,
+ struct box *box,
struct box *block,
int viewport_height,
int *max_pos_margin,
@@ -1505,7 +1567,8 @@ layout_next_margin_block(struct box *box,
/* Get margins */
if (box->style) {
- layout_find_dimensions(box->parent->width,
+ layout_find_dimensions(len_ctx,
+ box->parent->width,
viewport_height, box,
box->style,
NULL, NULL, NULL, NULL,
@@ -1579,7 +1642,8 @@ layout_next_margin_block(struct box *box,
/* Get margins */
if (box->style) {
- layout_find_dimensions(box->parent->width,
+ layout_find_dimensions(len_ctx,
+ box->parent->width,
viewport_height, box,
box->style,
NULL, NULL, NULL, NULL,
@@ -1815,6 +1879,7 @@ layout_solve_width(struct box *box,
* Compute dimensions of box, margins, paddings, and borders for a block-level
* element.
*
+ * \param len_ctx Length conversion context
* \param available_width Max width available in pixels
* \param viewport_height Height of viewport in pixels or -ve if unknown
* \param lm min left margin required to avoid floats in px.
@@ -1827,7 +1892,8 @@ layout_solve_width(struct box *box,
* See CSS 2.1 10.3.3, 10.3.4, 10.6.2, and 10.6.3.
*/
static void
-layout_block_find_dimensions(int available_width,
+layout_block_find_dimensions(const nscss_len_ctx *len_ctx,
+ int available_width,
int viewport_height,
int lm,
int rm,
@@ -1840,8 +1906,8 @@ layout_block_find_dimensions(int available_width,
struct box_border *border = box->border;
const css_computed_style *style = box->style;
- layout_find_dimensions(available_width, viewport_height, box, style,
- &width, &height, &max_width, &min_width,
+ layout_find_dimensions(len_ctx, available_width, viewport_height, box,
+ style, &width, &height, &max_width, &min_width,
&max_height, &min_height, margin, padding, border);
if (box->object && !(box->flags & REPLACE_DIM) &&
@@ -1994,8 +2060,9 @@ static bool layout_table(struct box *table, int
available_width,
memcpy(col, table->col, sizeof(col[0]) * columns);
/* find margins, paddings, and borders for table and cells */
- layout_find_dimensions(available_width, -1, table, style, 0, 0, 0, 0,
- 0, 0, table->margin, table->padding, table->border);
+ layout_find_dimensions(&content->len_ctx, available_width, -1, table,
+ style, 0, 0, 0, 0, 0, 0, table->margin, table->padding,
+ table->border);
for (row_group = table->children; row_group;
row_group = row_group->next) {
for (row = row_group->children; row; row = row->next) {
@@ -2004,9 +2071,11 @@ static bool layout_table(struct box *table, int
available_width,
enum css_overflow_e overflow_y;
assert(c->style);
- table_used_border_for_cell(c);
- layout_find_dimensions(available_width, -1,
- c, c->style, 0, 0, 0, 0, 0, 0,
+ table_used_border_for_cell(
+ &content->len_ctx, c);
+ layout_find_dimensions(&content->len_ctx,
+ available_width, -1, c,
+ c->style, 0, 0, 0, 0, 0, 0,
0, c->padding, c->border);
overflow_x = css_computed_overflow_x(c->style);
@@ -2034,8 +2103,10 @@ static bool layout_table(struct box *table, int
available_width,
css_computed_border_spacing(style, &h, &hu, &v, &vu);
- border_spacing_h = FIXTOINT(nscss_len2px(h, hu, style));
- border_spacing_v = FIXTOINT(nscss_len2px(v, vu, style));
+ border_spacing_h = FIXTOINT(nscss_len2px(&content->len_ctx,
+ h, hu, style));
+ border_spacing_v = FIXTOINT(nscss_len2px(&content->len_ctx,
+ v, vu, style));
}
/* find specified table width, or available width if auto-width */
@@ -2045,7 +2116,8 @@ static bool layout_table(struct box *table, int
available_width,
table_width = FPCT_OF_INT_TOINT(value, available_width);
} else {
table_width =
- FIXTOINT(nscss_len2px(value, unit, style));
+ FIXTOINT(nscss_len2px(&content->len_ctx,
+ value, unit, style));
}
/* specified width includes border */
@@ -2123,7 +2195,8 @@ static bool layout_table(struct box *table, int
available_width,
} else {
/* This is the minimum height for the table
* (see 17.5.3) */
- min_height = FIXTOINT(nscss_len2px(value, unit, style));
+ min_height = FIXTOINT(nscss_len2px(&content->len_ctx,
+ value, unit, style));
}
}
@@ -2313,8 +2386,9 @@ static bool layout_table(struct box *table, int
available_width,
htype = css_computed_height(row->style, &value, &unit);
if (htype == CSS_HEIGHT_SET && unit != CSS_UNIT_PCT) {
- row_height = FIXTOINT(nscss_len2px(value, unit,
- row->style));
+ row_height = FIXTOINT(nscss_len2px(
+ &content->len_ctx,
+ value, unit, row->style));
}
for (c = row->children; c; c = c->next) {
assert(c->style);
@@ -2351,8 +2425,9 @@ static bool layout_table(struct box *table, int
available_width,
/* some sites use height="1" or similar
* to attempt to make cells as small as
* possible, so treat it as a minimum */
- int h = FIXTOINT(nscss_len2px(value,
- unit, c->style));
+ int h = FIXTOINT(nscss_len2px(
+ &content->len_ctx,
+ value, unit, c->style));
if (c->height < h)
c->height = h;
}
@@ -2496,12 +2571,16 @@ static bool layout_table(struct box *table, int
available_width,
/**
* Manimpulate box height according to CSS min-height and max-height properties
*
+ * \param len_ctx CSS length conversion context for document.
* \param box block to modify with any min-height or max-height
* \param container containing block for absolutely positioned elements, or
* NULL for non absolutely positioned elements.
* \return whether the height has been changed
*/
-static bool layout_apply_minmax_height(struct box *box, struct box *container)
+static bool layout_apply_minmax_height(
+ const nscss_len_ctx *len_ctx,
+ struct box *box,
+ struct box *container)
{
int h;
struct box *containing_block = NULL;
@@ -2560,8 +2639,8 @@ static bool layout_apply_minmax_height(struct box *box,
struct box *container)
}
}
} else {
- h = FIXTOINT(nscss_len2px(value, unit,
- box->style));
+ h = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, box->style));
if (h < box->height) {
box->height = h;
updated = true;
@@ -2590,8 +2669,8 @@ static bool layout_apply_minmax_height(struct box *box,
struct box *container)
}
}
} else {
- h = FIXTOINT(nscss_len2px(value, unit,
- box->style));
+ h = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, box->style));
if (h > box->height) {
box->height = h;
updated = true;
@@ -2759,6 +2838,7 @@ layout_text_box_split(html_content *content,
* Compute dimensions of box, margins, paddings, and borders for a floating
* element using shrink-to-fit. Also used for inline-blocks.
*
+ * \param len_ctx CSS length conversion context for document.
* \param available_width Max width available in pixels
* \param style Box's style
* \param box Box for which to find dimensions
@@ -2766,9 +2846,11 @@ layout_text_box_split(html_content *content,
* height are updated.
*/
static void
-layout_float_find_dimensions(int available_width,
- const css_computed_style *style,
- struct box *box)
+layout_float_find_dimensions(
+ const nscss_len_ctx *len_ctx,
+ int available_width,
+ const css_computed_style *style,
+ struct box *box)
{
int width, height, max_width, min_width, max_height, min_height;
int *margin = box->margin;
@@ -2785,9 +2867,9 @@ layout_float_find_dimensions(int available_width,
overflow_y == CSS_OVERFLOW_AUTO) ?
SCROLLBAR_WIDTH : 0;
- layout_find_dimensions(available_width, -1, box, style, &width, &height,
- &max_width, &min_width, &max_height, &min_height,
- margin, padding, border);
+ layout_find_dimensions(len_ctx, available_width, -1, box, style,
+ &width, &height, &max_width, &min_width,
+ &max_height, &min_height, margin, padding, border);
if (margin[LEFT] == AUTO)
margin[LEFT] = 0;
@@ -2821,26 +2903,26 @@ layout_float_find_dimensions(int available_width,
box->gadget->type == GADGET_FILE) {
if (width == AUTO) {
size = INTTOFIX(10);
- width = FIXTOINT(nscss_len2px(size, unit,
- box->style));
+ width = FIXTOINT(nscss_len2px(len_ctx,
+ size, unit, box->style));
}
if (box->gadget->type == GADGET_FILE &&
height == AUTO) {
size = FLTTOFIX(1.5);
- height = FIXTOINT(nscss_len2px(size, unit,
- box->style));
+ height = FIXTOINT(nscss_len2px(len_ctx,
+ size, unit, box->style));
}
}
if (box->gadget->type == GADGET_TEXTAREA) {
if (width == AUTO) {
size = INTTOFIX(10);
- width = FIXTOINT(nscss_len2px(size, unit,
- box->style));
+ width = FIXTOINT(nscss_len2px(len_ctx,
+ size, unit, box->style));
}
if (height == AUTO) {
size = INTTOFIX(4);
- height = FIXTOINT(nscss_len2px(size, unit,
- box->style));
+ height = FIXTOINT(nscss_len2px(len_ctx,
+ size, unit, box->style));
}
}
} else if (width == AUTO) {
@@ -2861,10 +2943,10 @@ layout_float_find_dimensions(int available_width,
* mbp as was used in layout_minmax_block() */
int fixed = 0;
float frac = 0;
- calculate_mbp_width(box->style, LEFT, true, true, true,
- &fixed, &frac);
- calculate_mbp_width(box->style, RIGHT, true, true, true,
- &fixed, &frac);
+ calculate_mbp_width(len_ctx, box->style, LEFT,
+ true, true, true, &fixed, &frac);
+ calculate_mbp_width(len_ctx, box->style, RIGHT,
+ true, true, true, &fixed, &frac);
if (fixed < 0)
fixed = 0;
@@ -2902,7 +2984,7 @@ static bool layout_float(struct box *b, int width,
html_content *content)
{
assert(b->type == BOX_TABLE || b->type == BOX_BLOCK ||
b->type == BOX_INLINE_BLOCK);
- layout_float_find_dimensions(width, b->style, b);
+ layout_float_find_dimensions(&content->len_ctx, width, b->style, b);
if (b->type == BOX_TABLE) {
if (!layout_table(b, width, content))
return false;
@@ -2974,7 +3056,9 @@ place_float_below(struct box *c, int width, int cx, int
y, struct box *cont)
/**
* Calculate line height from a style.
*/
-static int line_height(const css_computed_style *style)
+static int line_height(
+ const nscss_len_ctx *len_ctx,
+ const css_computed_style *style)
{
enum css_line_height_e lhtype;
css_fixed lhvalue = 0;
@@ -2992,14 +3076,16 @@ static int line_height(const css_computed_style *style)
if (lhtype == CSS_LINE_HEIGHT_NUMBER ||
lhunit == CSS_UNIT_PCT) {
- line_height = nscss_len2px(lhvalue, CSS_UNIT_EM, style);
+ line_height = nscss_len2px(len_ctx,
+ lhvalue, CSS_UNIT_EM, style);
if (lhtype != CSS_LINE_HEIGHT_NUMBER)
line_height = FDIV(line_height, F_100);
} else {
assert(lhunit != CSS_UNIT_PCT);
- line_height = nscss_len2px(lhvalue, lhunit, style);
+ line_height = nscss_len2px(len_ctx,
+ lhvalue, lhunit, style);
}
return FIXTOINT(line_height);
@@ -3071,7 +3157,8 @@ layout_line(struct box *first,
x1 -= cx;
if (indent)
- x0 += layout_text_indent(first->parent->parent->style, *width);
+ x0 += layout_text_indent(&content->len_ctx,
+ first->parent->parent->style, *width);
if (x1 < x0)
x1 = x0;
@@ -3080,8 +3167,8 @@ layout_line(struct box *first,
* this is the line-height if there are text children and also in the
* case of an initially empty text input */
if (has_text_children || first->parent->parent->gadget)
- used_height = height =
- line_height(first->parent->parent->style);
+ used_height = height = line_height(&content->len_ctx,
+ first->parent->parent->style);
else
/* inline containers with no text are usually for layout and
* look better with no minimum line-height */
@@ -3120,7 +3207,7 @@ layout_line(struct box *first,
continue;
assert(b->style != NULL);
- font_plot_style_from_css(b->style, &fstyle);
+ font_plot_style_from_css(&content->len_ctx, b->style, &fstyle);
x += space_after;
@@ -3144,9 +3231,9 @@ layout_line(struct box *first,
if (b->type == BOX_INLINE) {
/* calculate borders, margins, and padding */
- layout_find_dimensions(*width, -1, b, b->style, 0, 0,
- 0, 0, 0, 0, b->margin, b->padding,
- b->border);
+ layout_find_dimensions(&content->len_ctx,
+ *width, -1, b, b->style, 0, 0, 0, 0,
+ 0, 0, b->margin, b->padding, b->border);
for (i = 0; i != 4; i++)
if (b->margin[i] == AUTO)
b->margin[i] = 0;
@@ -3179,7 +3266,8 @@ layout_line(struct box *first,
if (!b->object && !(b->flags & IFRAME) && !b->gadget &&
!(b->flags & REPLACE_DIM)) {
/* inline non-replaced, 10.3.1 and 10.6.1 */
- b->height = line_height(b->style ? b->style :
+ b->height = line_height(&content->len_ctx,
+ b->style ? b->style :
b->parent->parent->style);
if (height < b->height)
height = b->height;
@@ -3249,9 +3337,12 @@ layout_line(struct box *first,
/* inline replaced, 10.3.2 and 10.6.2 */
assert(b->style);
- layout_find_dimensions(*width, -1, b, b->style,
- &b->width, &b->height, &max_width, &min_width,
- &max_height, &min_height, NULL, NULL, NULL);
+ layout_find_dimensions(&content->len_ctx,
+ *width, -1, b, b->style,
+ &b->width, &b->height,
+ &max_width, &min_width,
+ &max_height, &min_height,
+ NULL, NULL, NULL);
if (b->object && !(b->flags & REPLACE_DIM)) {
layout_get_object_dimensions(b, &b->width, &b->height,
@@ -3269,10 +3360,12 @@ layout_line(struct box *first,
} else {
/* form control with no object */
if (b->width == AUTO)
- b->width = FIXTOINT(nscss_len2px(INTTOFIX(1),
+ b->width = FIXTOINT(nscss_len2px(
+ &content->len_ctx, INTTOFIX(1),
CSS_UNIT_EM, b->style));
if (b->height == AUTO)
- b->height = FIXTOINT(nscss_len2px(INTTOFIX(1),
+ b->height = FIXTOINT(nscss_len2px(
+ &content->len_ctx, INTTOFIX(1),
CSS_UNIT_EM, b->style));
}
@@ -3306,7 +3399,8 @@ layout_line(struct box *first,
x1 -= cx;
if (indent)
- x0 += layout_text_indent(first->parent->parent->style, *width);
+ x0 += layout_text_indent(&content->len_ctx,
+ first->parent->parent->style, *width);
if (x1 < x0)
x1 = x0;
@@ -3363,8 +3457,9 @@ layout_line(struct box *first,
space_after = 0;
else if (b->text || b->type == BOX_INLINE_END) {
if (b->space == UNKNOWN_WIDTH) {
- font_plot_style_from_css(b->style,
- &fstyle);
+ font_plot_style_from_css(
+ &content->len_ctx,
+ b->style, &fstyle);
/** \todo handle errors */
font_func->width(&fstyle, " ", 1,
&b->space);
@@ -3517,7 +3612,8 @@ layout_line(struct box *first,
!(split_box->flags & IFRAME) &&
!split_box->gadget && split_box->text) {
- font_plot_style_from_css(split_box->style, &fstyle);
+ font_plot_style_from_css(&content->len_ctx,
+ split_box->style, &fstyle);
/** \todo handle errors */
font_func->split(&fstyle,
split_box->text,
@@ -3879,7 +3975,8 @@ layout_block_context(struct box *block,
gadget_unit = CSS_UNIT_EM;
gadget_size = INTTOFIX(1);
if (block->height == AUTO)
- block->height = FIXTOINT(nscss_len2px(gadget_size,
+ block->height = FIXTOINT(nscss_len2px(
+ &content->len_ctx, gadget_size,
gadget_unit, block->style));
}
@@ -3943,7 +4040,8 @@ layout_block_context(struct box *block,
/* If we don't know which box the current margin collapses
* through to, find out. Update the pos/neg margin values. */
if (margin_collapse == NULL) {
- margin_collapse = layout_next_margin_block(box, block,
+ margin_collapse = layout_next_margin_block(
+ &content->len_ctx, box, block,
viewport_height,
&max_pos_margin, &max_neg_margin);
/* We have a margin that has not yet been applied. */
@@ -3994,7 +4092,8 @@ layout_block_context(struct box *block,
box->parent->padding[RIGHT] -
x1;
}
- layout_block_find_dimensions(box->parent->width,
+ layout_block_find_dimensions(&content->len_ctx,
+ box->parent->width,
viewport_height, lm, rm, box);
if (box->type == BOX_BLOCK && !(box->flags & IFRAME)) {
layout_block_add_scrollbar(box, RIGHT);
@@ -4234,8 +4333,9 @@ layout_block_context(struct box *block,
if (box->style &&
css_computed_position(box->style) !=
CSS_POSITION_ABSOLUTE &&
- layout_apply_minmax_height(box,
- NULL)) {
+ layout_apply_minmax_height(
+ &content->len_ctx,
+ box, NULL)) {
/* Height altered */
/* Set current cy */
cy += box->height -
@@ -4291,7 +4391,7 @@ layout_block_context(struct box *block,
if (block->style && css_computed_position(block->style) !=
CSS_POSITION_ABSOLUTE) {
/* Block is in normal flow */
- layout_apply_minmax_height(block, NULL);
+ layout_apply_minmax_height(&content->len_ctx, block, NULL);
}
if (block->gadget &&
@@ -4317,7 +4417,8 @@ layout_block_context(struct box *block,
*/
static void
layout_lists(struct box *box,
- const struct gui_layout_table *font_func)
+ const struct gui_layout_table *font_func,
+ const nscss_len_ctx *len_ctx)
{
struct box *child;
struct box *marker;
@@ -4332,12 +4433,13 @@ layout_lists(struct box *box,
marker->x = -marker->width;
marker->height =
content_get_height(marker->object);
- marker->y = (line_height(marker->style) -
+ marker->y = (line_height(len_ctx,
+ marker->style) -
marker->height) / 2;
} else if (marker->text) {
if (marker->width == UNKNOWN_WIDTH) {
- font_plot_style_from_css(marker->style,
- &fstyle);
+ font_plot_style_from_css(len_ctx,
+ marker->style, &fstyle);
font_func->width(&fstyle,
marker->text,
marker->length,
@@ -4346,7 +4448,8 @@ layout_lists(struct box *box,
}
marker->x = -marker->width;
marker->y = 0;
- marker->height = line_height(marker->style);
+ marker->height = line_height(len_ctx,
+ marker->style);
} else {
marker->x = 0;
marker->y = 0;
@@ -4356,7 +4459,7 @@ layout_lists(struct box *box,
/* Gap between marker and content */
marker->x -= 4;
}
- layout_lists(child, font_func);
+ layout_lists(child, font_func, len_ctx);
}
}
@@ -4365,6 +4468,7 @@ layout_lists(struct box *box,
* Compute box offsets for a relatively or absolutely positioned box with
* respect to a box.
*
+ * \param len_ctx Length conversion context
* \param box box to compute offsets for
* \param containing_block box to compute percentages with respect to
* \param top updated to top offset, or AUTO
@@ -4375,7 +4479,8 @@ layout_lists(struct box *box,
* See CSS 2.1 9.3.2. containing_block must have width and height.
*/
static void
-layout_compute_offsets(struct box *box,
+layout_compute_offsets(const nscss_len_ctx *len_ctx,
+ struct box *box,
struct box *containing_block,
int *top,
int *right,
@@ -4397,7 +4502,8 @@ layout_compute_offsets(struct box *box,
*left = FPCT_OF_INT_TOINT(value,
containing_block->width);
} else {
- *left = FIXTOINT(nscss_len2px(value, unit, box->style));
+ *left = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, box->style));
}
} else {
*left = AUTO;
@@ -4410,8 +4516,8 @@ layout_compute_offsets(struct box *box,
*right = FPCT_OF_INT_TOINT(value,
containing_block->width);
} else {
- *right = FIXTOINT(nscss_len2px(value, unit,
- box->style));
+ *right = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, box->style));
}
} else {
*right = AUTO;
@@ -4424,7 +4530,8 @@ layout_compute_offsets(struct box *box,
*top = FPCT_OF_INT_TOINT(value,
containing_block->height);
} else {
- *top = FIXTOINT(nscss_len2px(value, unit, box->style));
+ *top = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, box->style));
}
} else {
*top = AUTO;
@@ -4437,8 +4544,8 @@ layout_compute_offsets(struct box *box,
*bottom = FPCT_OF_INT_TOINT(value,
containing_block->height);
} else {
- *bottom = FIXTOINT(nscss_len2px(value, unit,
- box->style));
+ *bottom = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, box->style));
}
} else {
*bottom = AUTO;
@@ -4494,16 +4601,17 @@ layout_absolute(struct box *box,
/** \todo inline containers */
}
- layout_compute_offsets(box, containing_block,
+ layout_compute_offsets(&content->len_ctx, box, containing_block,
&top, &right, &bottom, &left);
/* Pass containing block into layout_find_dimensions via the float
* containing block box member. This is unused for absolutely positioned
* boxes because a box can't be floated and absolutely positioned. */
box->float_container = containing_block;
- layout_find_dimensions(available_width, -1, box, box->style,
- &width, &height, &max_width, &min_width,
- 0, 0, margin, padding, border);
+ layout_find_dimensions(&content->len_ctx, available_width, -1,
+ box, box->style, &width, &height,
+ &max_width, &min_width, 0, 0,
+ margin, padding, border);
box->float_container = NULL;
/* 10.3.7 */
@@ -4818,7 +4926,7 @@ layout_absolute(struct box *box,
/** \todo Inline ancestors */
}
box->height = height;
- layout_apply_minmax_height(box, containing_block);
+ layout_apply_minmax_height(&content->len_ctx, box, containing_block);
return true;
}
@@ -4895,11 +5003,16 @@ layout_position_absolute(struct box *box,
/**
* Compute a box's relative offset as per CSS 2.1 9.4.3
*
+ * \param len_ctx Length conversion context
* \param box Box to compute relative offsets for.
* \param x Receives relative offset in x.
* \param y Receives relative offset in y.
*/
-static void layout_compute_relative_offset(struct box *box, int *x, int *y)
+static void layout_compute_relative_offset(
+ const nscss_len_ctx *len_ctx,
+ struct box *box,
+ int *x,
+ int *y)
{
int left, right, top, bottom;
struct box *containing_block;
@@ -4916,7 +5029,7 @@ static void layout_compute_relative_offset(struct box
*box, int *x, int *y)
containing_block = box->parent;
}
- layout_compute_offsets(box, containing_block,
+ layout_compute_offsets(len_ctx, box, containing_block,
&top, &right, &bottom, &left);
if (left == AUTO && right == AUTO)
@@ -4964,6 +5077,7 @@ static void layout_compute_relative_offset(struct box
*box, int *x, int *y)
/**
* Adjust positions of relatively positioned boxes.
*
+ * \param len_ctx Length conversion context
* \param root box to adjust the position of
* \param fp box which forms the block formatting context for children of
* "root" which are floats
@@ -4975,7 +5089,12 @@ static void layout_compute_relative_offset(struct box
*box, int *x, int *y)
* box, "fp", for float children of "root"
*/
static void
-layout_position_relative(struct box *root, struct box *fp, int fx, int fy)
+layout_position_relative(
+ const nscss_len_ctx *len_ctx,
+ struct box *root,
+ struct box *fp,
+ int fx,
+ int fy)
{
struct box *box; /* for children of "root" */
struct box *fn; /* for block formatting context box for children of
@@ -4999,7 +5118,8 @@ layout_position_relative(struct box *root, struct box
*fp, int fx, int fy)
/* If relatively positioned, get offsets */
if (box->style && css_computed_position(box->style) ==
CSS_POSITION_RELATIVE)
- layout_compute_relative_offset(box, &x, &y);
+ layout_compute_relative_offset(
+ len_ctx, box, &x, &y);
else
x = y = 0;
@@ -5035,7 +5155,7 @@ layout_position_relative(struct box *root, struct box
*fp, int fx, int fy)
}
/* recurse first */
- layout_position_relative(box, fn, fnx, fny);
+ layout_position_relative(len_ctx, box, fn, fnx, fny);
/* Ignore things we're not interested in. */
if (!box->style || (box->style &&
@@ -5064,6 +5184,7 @@ layout_position_relative(struct box *root, struct box
*fp, int fx, int fy)
/**
* Find a box's bounding box relative to itself, i.e. the box's border edge box
*
+ * \param len_ctx Length conversion context
* \param box box find bounding box of
* \param desc_x0 updated to left of box's bbox
* \param desc_y0 updated to top of box's bbox
@@ -5071,9 +5192,11 @@ layout_position_relative(struct box *root, struct box
*fp, int fx, int fy)
* \param desc_y1 updated to bottom of box's bbox
*/
static void
-layout_get_box_bbox(struct box *box,
- int *desc_x0, int *desc_y0,
- int *desc_x1, int *desc_y1)
+layout_get_box_bbox(
+ const nscss_len_ctx *len_ctx,
+ struct box *box,
+ int *desc_x0, int *desc_y0,
+ int *desc_x1, int *desc_y1)
{
*desc_x0 = -box->border[LEFT].width;
*desc_y0 = -box->border[TOP].width;
@@ -5093,7 +5216,8 @@ layout_get_box_bbox(struct box *box,
int text_height;
css_computed_font_size(box->style, &font_size, &font_unit);
- text_height = nscss_len2px(font_size, font_unit, box->style);
+ text_height = nscss_len2px(len_ctx, font_size, font_unit,
+ box->style);
text_height = FIXTOINT(text_height * 3 / 4);
*desc_y0 = (*desc_y0 < -text_height) ? *desc_y0 : -text_height;
}
@@ -5103,16 +5227,19 @@ layout_get_box_bbox(struct box *box,
/**
* Apply changes to box descendant_[xy][01] values due to given child.
*
- * \param box box to update
- * \param child a box, which may affect box's descendant bbox
- * \param off_x offset to apply to child->x coord to treat as child of box
- * \param off_y offset to apply to child->y coord to treat as child of box
+ * \param len_ctx Length conversion context
+ * \param box box to update
+ * \param child a box, which may affect box's descendant bbox
+ * \param off_x offset to apply to child->x coord to treat as child of box
+ * \param off_y offset to apply to child->y coord to treat as child of box
*/
static void
-layout_update_descendant_bbox(struct box *box,
- struct box *child,
- int off_x,
- int off_y)
+layout_update_descendant_bbox(
+ const nscss_len_ctx *len_ctx,
+ struct box *box,
+ struct box *child,
+ int off_x,
+ int off_y)
{
int child_desc_x0, child_desc_y0, child_desc_x1, child_desc_y1;
@@ -5132,7 +5259,8 @@ layout_update_descendant_bbox(struct box *box,
}
/* Get child's border edge */
- layout_get_box_bbox(child, &child_desc_x0, &child_desc_y0,
+ layout_get_box_bbox(len_ctx, child,
+ &child_desc_x0, &child_desc_y0,
&child_desc_x1, &child_desc_y1);
if (overflow_x == CSS_OVERFLOW_VISIBLE &&
@@ -5169,9 +5297,12 @@ layout_update_descendant_bbox(struct box *box,
* Recursively calculate the descendant_[xy][01] values for a laid-out box tree
* and inform iframe browser windows of their size and position.
*
- * \param box tree of boxes to update
+ * \param len_ctx Length conversion context
+ * \param box tree of boxes to update
*/
-static void layout_calculate_descendant_bboxes(struct box *box)
+static void layout_calculate_descendant_bboxes(
+ const nscss_len_ctx *len_ctx,
+ struct box *box)
{
struct box *child;
@@ -5180,7 +5311,8 @@ static void layout_calculate_descendant_bboxes(struct box
*box)
/* assert((box->width >= 0) && (box->height >= 0)); */
/* Initialise box's descendant box to border edge box */
- layout_get_box_bbox(box, &box->descendant_x0, &box->descendant_y0,
+ layout_get_box_bbox(len_ctx, box,
+ &box->descendant_x0, &box->descendant_y0,
&box->descendant_x1, &box->descendant_y1);
/* Extend it to contain HTML contents if box is replaced */
@@ -5213,7 +5345,7 @@ static void layout_calculate_descendant_bboxes(struct box
*box)
child->type == BOX_FLOAT_RIGHT)
continue;
- layout_update_descendant_bbox(box, child,
+ layout_update_descendant_bbox(len_ctx, box, child,
box->x, box->y);
if (child == box->inline_end)
@@ -5231,7 +5363,7 @@ static void layout_calculate_descendant_bboxes(struct box
*box)
child->type == BOX_FLOAT_RIGHT)
continue;
- layout_calculate_descendant_bboxes(child);
+ layout_calculate_descendant_bboxes(len_ctx, child);
if (box->style && css_computed_overflow_x(box->style) ==
CSS_OVERFLOW_HIDDEN &&
@@ -5239,23 +5371,23 @@ static void layout_calculate_descendant_bboxes(struct
box *box)
CSS_OVERFLOW_HIDDEN)
continue;
- layout_update_descendant_bbox(box, child, 0, 0);
+ layout_update_descendant_bbox(len_ctx, box, child, 0, 0);
}
for (child = box->float_children; child; child = child->next_float) {
assert(child->type == BOX_FLOAT_LEFT ||
child->type == BOX_FLOAT_RIGHT);
- layout_calculate_descendant_bboxes(child);
+ layout_calculate_descendant_bboxes(len_ctx, child);
- layout_update_descendant_bbox(box, child, 0, 0);
+ layout_update_descendant_bbox(len_ctx, box, child, 0, 0);
}
if (box->list_marker) {
child = box->list_marker;
- layout_calculate_descendant_bboxes(child);
+ layout_calculate_descendant_bboxes(len_ctx, child);
- layout_update_descendant_bbox(box, child, 0, 0);
+ layout_update_descendant_bbox(len_ctx, box, child, 0, 0);
}
}
@@ -5267,9 +5399,10 @@ bool layout_document(html_content *content, int width,
int height)
struct box *doc = content->layout;
const struct gui_layout_table *font_func = content->font_func;
- layout_minmax_block(doc, font_func);
+ layout_minmax_block(doc, font_func, content);
- layout_block_find_dimensions(width, height, 0, 0, doc);
+ layout_block_find_dimensions(&content->len_ctx,
+ width, height, 0, 0, doc);
doc->x = doc->margin[LEFT] + doc->border[LEFT].width;
doc->y = doc->margin[TOP] + doc->border[TOP].width;
width -= doc->margin[LEFT] + doc->border[LEFT].width +
@@ -5300,11 +5433,11 @@ bool layout_document(html_content *content, int width,
int height)
doc->children->margin[BOTTOM]);
}
- layout_lists(doc, font_func);
+ layout_lists(doc, font_func, &content->len_ctx);
layout_position_absolute(doc, doc, 0, 0, content);
- layout_position_relative(doc, doc, 0, 0);
+ layout_position_relative(&content->len_ctx, doc, doc, 0, 0);
- layout_calculate_descendant_bboxes(doc);
+ layout_calculate_descendant_bboxes(&content->len_ctx, doc);
return ret;
}
diff --git a/render/table.c b/render/table.c
index c41b913..08a2e80 100644
--- a/render/table.c
+++ b/render/table.c
@@ -45,31 +45,57 @@ struct border {
css_unit unit; /**< border-width units */
};
-static void table_used_left_border_for_cell(struct box *cell);
-static void table_used_top_border_for_cell(struct box *cell);
-static void table_used_right_border_for_cell(struct box *cell);
-static void table_used_bottom_border_for_cell(struct box *cell);
-static bool table_border_is_more_eyecatching(const struct border *a,
- box_type a_src, const struct border *b, box_type b_src);
-static void table_cell_top_process_table(struct box *table, struct border *a,
+static void table_used_left_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell);
+static void table_used_top_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell);
+static void table_used_right_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell);
+static void table_used_bottom_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell);
+static bool table_border_is_more_eyecatching(
+ const nscss_len_ctx *len_ctx,
+ const struct border *a,
+ box_type a_src,
+ const struct border *b,
+ box_type b_src);
+static void table_cell_top_process_table(
+ const nscss_len_ctx *len_ctx,
+ struct box *table,
+ struct border *a,
+ box_type *a_src);
+static bool table_cell_top_process_group(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell,
+ struct box *group,
+ struct border *a,
+ box_type *a_src);
+static bool table_cell_top_process_row(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell,
+ struct box *row,
+ struct border *a,
box_type *a_src);
-static bool table_cell_top_process_group(struct box *cell, struct box *group,
- struct border *a, box_type *a_src);
-static bool table_cell_top_process_row(struct box *cell, struct box *row,
- struct border *a, box_type *a_src);
/**
* Determine the column width types for a table.
*
- * \param table box of type BOX_TABLE
+ * \param len_ctx Length conversion context
+ * \param table box of type BOX_TABLE
* \return true on success, false on memory exhaustion
*
* The table->col array is allocated and type and width are filled in for each
* column.
*/
-bool table_calculate_column_types(struct box *table)
+bool table_calculate_column_types(
+ const nscss_len_ctx *len_ctx,
+ struct box *table)
{
unsigned int i, j;
struct column *col;
@@ -109,7 +135,7 @@ bool table_calculate_column_types(struct box *table)
css_computed_position(cell->style) !=
CSS_POSITION_FIXED) {
col[i].positioned = false;
- }
+ }
type = css_computed_width(cell->style, &value, &unit);
@@ -117,8 +143,8 @@ bool table_calculate_column_types(struct box *table)
if (col[i].type != COLUMN_WIDTH_FIXED &&
type == CSS_WIDTH_SET && unit != CSS_UNIT_PCT) {
col[i].type = COLUMN_WIDTH_FIXED;
- col[i].width = FIXTOINT(nscss_len2px(value, unit,
- cell->style));
+ col[i].width = FIXTOINT(nscss_len2px(len_ctx,
+ value, unit, cell->style));
if (col[i].width < 0)
col[i].width = 0;
continue;
@@ -181,7 +207,7 @@ bool table_calculate_column_types(struct box *table)
if (type == CSS_WIDTH_SET && unit != CSS_UNIT_PCT &&
fixed_columns + unknown_columns ==
cell->columns) {
- int width = (FIXTOFLT(nscss_len2px(value, unit,
+ int width = (FIXTOFLT(nscss_len2px(len_ctx, value, unit,
cell->style)) - fixed_width) /
unknown_columns;
if (width < 0)
@@ -235,11 +261,14 @@ bool table_calculate_column_types(struct box *table)
/**
* Calculate used values of border-{trbl}-{style,color,width} for table cells.
*
- * \param cell Table cell to consider
+ * \param len_ctx Length conversion context
+ * \param cell Table cell to consider
*
* \post \a cell's border array is populated
*/
-void table_used_border_for_cell(struct box *cell)
+void table_used_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell)
{
int side;
@@ -257,7 +286,8 @@ void table_used_border_for_cell(struct box *cell)
&cell->border[LEFT].c);
css_computed_border_left_width(cell->style, &width, &unit);
cell->border[LEFT].width =
- FIXTOINT(nscss_len2px(width, unit, cell->style));
+ FIXTOINT(nscss_len2px(len_ctx,
+ width, unit, cell->style));
/* Top border */
cell->border[TOP].style =
@@ -266,7 +296,8 @@ void table_used_border_for_cell(struct box *cell)
&cell->border[TOP].c);
css_computed_border_top_width(cell->style, &width, &unit);
cell->border[TOP].width =
- FIXTOINT(nscss_len2px(width, unit, cell->style));
+ FIXTOINT(nscss_len2px(len_ctx,
+ width, unit, cell->style));
/* Right border */
cell->border[RIGHT].style =
@@ -275,7 +306,8 @@ void table_used_border_for_cell(struct box *cell)
&cell->border[RIGHT].c);
css_computed_border_right_width(cell->style, &width, &unit);
cell->border[RIGHT].width =
- FIXTOINT(nscss_len2px(width, unit, cell->style));
+ FIXTOINT(nscss_len2px(len_ctx,
+ width, unit, cell->style));
/* Bottom border */
cell->border[BOTTOM].style =
@@ -284,19 +316,20 @@ void table_used_border_for_cell(struct box *cell)
&cell->border[BOTTOM].c);
css_computed_border_bottom_width(cell->style, &width, &unit);
cell->border[BOTTOM].width =
- FIXTOINT(nscss_len2px(width, unit, cell->style));
+ FIXTOINT(nscss_len2px(len_ctx,
+ width, unit, cell->style));
} else {
/* Left border */
- table_used_left_border_for_cell(cell);
+ table_used_left_border_for_cell(len_ctx, cell);
/* Top border */
- table_used_top_border_for_cell(cell);
+ table_used_top_border_for_cell(len_ctx, cell);
/* Right border */
- table_used_right_border_for_cell(cell);
+ table_used_right_border_for_cell(len_ctx, cell);
/* Bottom border */
- table_used_bottom_border_for_cell(cell);
+ table_used_bottom_border_for_cell(len_ctx, cell);
}
/* Finally, ensure that any borders configured as
@@ -316,9 +349,12 @@ void table_used_border_for_cell(struct box *cell)
/**
* Calculate used values of border-left-{style,color,width}
*
- * \param cell Table cell to consider
+ * \param len_ctx Length conversion context
+ * \param cell Table cell to consider
*/
-void table_used_left_border_for_cell(struct box *cell)
+void table_used_left_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell)
{
struct border a, b;
box_type a_src, b_src;
@@ -329,7 +365,7 @@ void table_used_left_border_for_cell(struct box *cell)
a.style = css_computed_border_left_style(cell->style);
a.color = css_computed_border_left_color(cell->style, &a.c);
css_computed_border_left_width(cell->style, &a.width, &a.unit);
- a.width = nscss_len2px(a.width, a.unit, cell->style);
+ a.width = nscss_len2px(len_ctx, a.width, a.unit, cell->style);
a.unit = CSS_UNIT_PX;
a_src = BOX_TABLE_CELL;
@@ -362,11 +398,12 @@ void table_used_left_border_for_cell(struct box *cell)
b.style = css_computed_border_right_style(prev->style);
b.color = css_computed_border_right_color(prev->style, &b.c);
css_computed_border_right_width(prev->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, prev->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, prev->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_CELL;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -384,12 +421,13 @@ void table_used_left_border_for_cell(struct box *cell)
row->style, &b.c);
css_computed_border_left_width(
row->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, row->style);
+ b.width = nscss_len2px(len_ctx,
+ b.width, b.unit, row->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW;
-
- if (table_border_is_more_eyecatching(&a, a_src,
- &b, b_src)) {
+
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -403,11 +441,12 @@ void table_used_left_border_for_cell(struct box *cell)
b.style = css_computed_border_left_style(group->style);
b.color = css_computed_border_left_color(group->style, &b.c);
css_computed_border_left_width(group->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, group->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, group->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW_GROUP;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -416,11 +455,12 @@ void table_used_left_border_for_cell(struct box *cell)
b.style = css_computed_border_left_style(table->style);
b.color = css_computed_border_left_color(table->style, &b.c);
css_computed_border_left_width(table->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, table->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, table->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -429,16 +469,19 @@ void table_used_left_border_for_cell(struct box *cell)
/* a now contains the used left border for the cell */
cell->border[LEFT].style = a.style;
cell->border[LEFT].c = a.c;
- cell->border[LEFT].width =
- FIXTOINT(nscss_len2px(a.width, a.unit, cell->style));
+ cell->border[LEFT].width = FIXTOINT(nscss_len2px(len_ctx,
+ a.width, a.unit, cell->style));
}
/**
* Calculate used values of border-top-{style,color,width}
*
- * \param cell Table cell to consider
+ * \param len_ctx Length conversion context
+ * \param cell Table cell to consider
*/
-void table_used_top_border_for_cell(struct box *cell)
+void table_used_top_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell)
{
struct border a, b;
box_type a_src, b_src;
@@ -449,7 +492,7 @@ void table_used_top_border_for_cell(struct box *cell)
a.style = css_computed_border_top_style(cell->style);
css_computed_border_top_color(cell->style, &a.c);
css_computed_border_top_width(cell->style, &a.width, &a.unit);
- a.width = nscss_len2px(a.width, a.unit, cell->style);
+ a.width = nscss_len2px(len_ctx, a.width, a.unit, cell->style);
a.unit = CSS_UNIT_PX;
a_src = BOX_TABLE_CELL;
@@ -457,18 +500,18 @@ void table_used_top_border_for_cell(struct box *cell)
b.style = css_computed_border_top_style(row->style);
css_computed_border_top_color(row->style, &b.c);
css_computed_border_top_width(row->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, row->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, row->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx, &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
if (row->prev != NULL) {
/* Consider row(s) above */
- while (table_cell_top_process_row(cell, row->prev,
+ while (table_cell_top_process_row(len_ctx, cell, row->prev,
&a, &a_src) == false) {
if (row->prev->prev == NULL) {
/* Consider row group */
@@ -489,26 +532,29 @@ void table_used_top_border_for_cell(struct box *cell)
b.style = css_computed_border_top_style(group->style);
b.color = css_computed_border_top_color(group->style, &b.c);
css_computed_border_top_width(group->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, group->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, group->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW_GROUP;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
if (group->prev == NULL) {
/* Top border of table */
- table_cell_top_process_table(group->parent, &a, &a_src);
+ table_cell_top_process_table(len_ctx,
+ group->parent, &a, &a_src);
} else {
/* Process previous group(s) */
- while (table_cell_top_process_group(cell, group->prev,
+ while (table_cell_top_process_group(len_ctx,
+ cell, group->prev,
&a, &a_src) == false) {
if (group->prev->prev == NULL) {
/* Top border of table */
- table_cell_top_process_table(
- group->parent,
+ table_cell_top_process_table(len_ctx,
+ group->parent,
&a, &a_src);
break;
} else {
@@ -521,16 +567,19 @@ void table_used_top_border_for_cell(struct box *cell)
/* a now contains the used top border for the cell */
cell->border[TOP].style = a.style;
cell->border[TOP].c = a.c;
- cell->border[TOP].width =
- FIXTOINT(nscss_len2px(a.width, a.unit, cell->style));
+ cell->border[TOP].width = FIXTOINT(nscss_len2px(len_ctx,
+ a.width, a.unit, cell->style));
}
/**
* Calculate used values of border-right-{style,color,width}
*
- * \param cell Table cell to consider
+ * \param len_ctx Length conversion context
+ * \param cell Table cell to consider
*/
-void table_used_right_border_for_cell(struct box *cell)
+void table_used_right_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell)
{
struct border a, b;
box_type a_src, b_src;
@@ -541,7 +590,7 @@ void table_used_right_border_for_cell(struct box *cell)
a.style = css_computed_border_right_style(cell->style);
css_computed_border_right_color(cell->style, &a.c);
css_computed_border_right_width(cell->style, &a.width, &a.unit);
- a.width = nscss_len2px(a.width, a.unit, cell->style);
+ a.width = nscss_len2px(len_ctx, a.width, a.unit, cell->style);
a.unit = CSS_UNIT_PX;
a_src = BOX_TABLE_CELL;
@@ -565,12 +614,13 @@ void table_used_right_border_for_cell(struct box *cell)
row->style, &b.c);
css_computed_border_right_width(
row->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, row->style);
+ b.width = nscss_len2px(len_ctx,
+ b.width, b.unit, row->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW;
-
- if (table_border_is_more_eyecatching(&a, a_src,
- &b, b_src)) {
+
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -583,13 +633,14 @@ void table_used_right_border_for_cell(struct box *cell)
/* Row group -- consider its right border */
b.style = css_computed_border_right_style(group->style);
b.color = css_computed_border_right_color(group->style, &b.c);
- css_computed_border_right_width(group->style,
+ css_computed_border_right_width(group->style,
&b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, group->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, group->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW_GROUP;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -599,11 +650,12 @@ void table_used_right_border_for_cell(struct box *cell)
b.color = css_computed_border_right_color(table->style, &b.c);
css_computed_border_right_width(table->style,
&b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, table->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, table->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -612,16 +664,19 @@ void table_used_right_border_for_cell(struct box *cell)
/* a now contains the used right border for the cell */
cell->border[RIGHT].style = a.style;
cell->border[RIGHT].c = a.c;
- cell->border[RIGHT].width =
- FIXTOINT(nscss_len2px(a.width, a.unit, cell->style));
+ cell->border[RIGHT].width = FIXTOINT(nscss_len2px(len_ctx,
+ a.width, a.unit, cell->style));
}
/**
* Calculate used values of border-bottom-{style,color,width}
*
- * \param cell Table cell to consider
+ * \param len_ctx Length conversion context
+ * \param cell Table cell to consider
*/
-void table_used_bottom_border_for_cell(struct box *cell)
+void table_used_bottom_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell)
{
struct border a, b;
box_type a_src, b_src;
@@ -632,7 +687,7 @@ void table_used_bottom_border_for_cell(struct box *cell)
a.style = css_computed_border_bottom_style(cell->style);
css_computed_border_bottom_color(cell->style, &a.c);
css_computed_border_bottom_width(cell->style, &a.width, &a.unit);
- a.width = nscss_len2px(a.width, a.unit, cell->style);
+ a.width = nscss_len2px(len_ctx, a.width, a.unit, cell->style);
a.unit = CSS_UNIT_PX;
a_src = BOX_TABLE_CELL;
@@ -656,11 +711,12 @@ void table_used_bottom_border_for_cell(struct box *cell)
b.style = css_computed_border_bottom_style(row->style);
b.color = css_computed_border_bottom_color(row->style, &b.c);
css_computed_border_bottom_width(row->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, row->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, row->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -670,11 +726,12 @@ void table_used_bottom_border_for_cell(struct box *cell)
b.color = css_computed_border_bottom_color(group->style, &b.c);
css_computed_border_bottom_width(group->style,
&b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, group->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, group->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW_GROUP;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
a_src = b_src;
}
@@ -684,11 +741,12 @@ void table_used_bottom_border_for_cell(struct box *cell)
b.color = css_computed_border_bottom_color(table->style, &b.c);
css_computed_border_bottom_width(table->style,
&b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, table->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, table->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE;
- if (table_border_is_more_eyecatching(&a, a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ &a, a_src, &b, b_src)) {
a = b;
}
}
@@ -696,21 +754,26 @@ void table_used_bottom_border_for_cell(struct box *cell)
/* a now contains the used bottom border for the cell */
cell->border[BOTTOM].style = a.style;
cell->border[BOTTOM].c = a.c;
- cell->border[BOTTOM].width =
- FIXTOINT(nscss_len2px(a.width, a.unit, cell->style));
+ cell->border[BOTTOM].width = FIXTOINT(nscss_len2px(len_ctx,
+ a.width, a.unit, cell->style));
}
/**
* Determine if a border style is more eyecatching than another
*
- * \param a Reference border style
- * \param a_src Source of \a a
- * \param b Candidate border style
- * \param b_src Source of \a b
+ * \param len_ctx Length conversion context
+ * \param a Reference border style
+ * \param a_src Source of \a a
+ * \param b Candidate border style
+ * \param b_src Source of \a b
* \return True if \a b is more eyecatching than \a a
*/
-bool table_border_is_more_eyecatching(const struct border *a,
- box_type a_src, const struct border *b, box_type b_src)
+bool table_border_is_more_eyecatching(
+ const nscss_len_ctx *len_ctx,
+ const struct border *a,
+ box_type a_src,
+ const struct border *b,
+ box_type b_src)
{
css_fixed awidth, bwidth;
int impact = 0;
@@ -731,8 +794,8 @@ bool table_border_is_more_eyecatching(const struct border
*a,
* if they've come from a computed style. */
assert(a->unit != CSS_UNIT_EM && a->unit != CSS_UNIT_EX);
assert(b->unit != CSS_UNIT_EM && b->unit != CSS_UNIT_EX);
- awidth = nscss_len2px(a->width, a->unit, NULL);
- bwidth = nscss_len2px(b->width, b->unit, NULL);
+ awidth = nscss_len2px(len_ctx, a->width, a->unit, NULL);
+ bwidth = nscss_len2px(len_ctx, b->width, b->unit, NULL);
if (awidth < bwidth)
return true;
@@ -811,14 +874,18 @@ bool table_border_is_more_eyecatching(const struct border
*a,
/**
* Process a table
*
- * \param table Table to process
- * \param a Current border style for cell
- * \param a_src Source of \a a
+ * \param len_ctx Length conversion context
+ * \param table Table to process
+ * \param a Current border style for cell
+ * \param a_src Source of \a a
*
* \post \a a will be updated with most eyecatching style
* \post \a a_src will be updated also
*/
-void table_cell_top_process_table(struct box *table, struct border *a,
+void table_cell_top_process_table(
+ const nscss_len_ctx *len_ctx,
+ struct box *table,
+ struct border *a,
box_type *a_src)
{
struct border b;
@@ -828,11 +895,11 @@ void table_cell_top_process_table(struct box *table,
struct border *a,
b.style = css_computed_border_top_style(table->style);
b.color = css_computed_border_top_color(table->style, &b.c);
css_computed_border_top_width(table->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, table->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, table->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE;
- if (table_border_is_more_eyecatching(a, *a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx, a, *a_src, &b, b_src)) {
*a = b;
*a_src = b_src;
}
@@ -841,17 +908,22 @@ void table_cell_top_process_table(struct box *table,
struct border *a,
/**
* Process a group
*
- * \param cell Cell being considered
- * \param group Group to process
- * \param a Current border style for cell
- * \param a_src Source of \a a
+ * \param len_ctx Length conversion context
+ * \param cell Cell being considered
+ * \param group Group to process
+ * \param a Current border style for cell
+ * \param a_src Source of \a a
* \return true if group has non-empty rows, false otherwise
*
* \post \a a will be updated with most eyecatching style
* \post \a a_src will be updated also
*/
-bool table_cell_top_process_group(struct box *cell, struct box *group,
- struct border *a, box_type *a_src)
+bool table_cell_top_process_group(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell,
+ struct box *group,
+ struct border *a,
+ box_type *a_src)
{
struct border b;
box_type b_src;
@@ -860,11 +932,11 @@ bool table_cell_top_process_group(struct box *cell,
struct box *group,
b.style = css_computed_border_bottom_style(group->style);
b.color = css_computed_border_bottom_color(group->style, &b.c);
css_computed_border_bottom_width(group->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, group->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, group->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW_GROUP;
- if (table_border_is_more_eyecatching(a, *a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx, a, *a_src, &b, b_src)) {
*a = b;
*a_src = b_src;
}
@@ -873,7 +945,7 @@ bool table_cell_top_process_group(struct box *cell, struct
box *group,
/* Process rows in group, starting with last */
struct box *row = group->last;
- while (table_cell_top_process_row(cell, row,
+ while (table_cell_top_process_row(len_ctx, cell, row,
a, a_src) == false) {
if (row->prev == NULL) {
return false;
@@ -886,11 +958,12 @@ bool table_cell_top_process_group(struct box *cell,
struct box *group,
b.style = css_computed_border_top_style(group->style);
b.color = css_computed_border_top_color(group->style, &b.c);
css_computed_border_top_width(group->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, group->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, group->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW_GROUP;
- if (table_border_is_more_eyecatching(a, *a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ a, *a_src, &b, b_src)) {
*a = b;
*a_src = b_src;
}
@@ -904,17 +977,22 @@ bool table_cell_top_process_group(struct box *cell,
struct box *group,
/**
* Process a row
*
- * \param cell Cell being considered
- * \param row Row to process
- * \param a Current border style for cell
- * \param a_src Source of \a a
+ * \param len_ctx Length conversion context
+ * \param cell Cell being considered
+ * \param row Row to process
+ * \param a Current border style for cell
+ * \param a_src Source of \a a
* \return true if row has cells, false otherwise
*
* \post \a a will be updated with most eyecatching style
* \post \a a_src will be updated also
*/
-bool table_cell_top_process_row(struct box *cell, struct box *row,
- struct border *a, box_type *a_src)
+bool table_cell_top_process_row(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell,
+ struct box *row,
+ struct border *a,
+ box_type *a_src)
{
struct border b;
box_type b_src;
@@ -923,11 +1001,11 @@ bool table_cell_top_process_row(struct box *cell, struct
box *row,
b.style = css_computed_border_bottom_style(row->style);
b.color = css_computed_border_bottom_color(row->style, &b.c);
css_computed_border_bottom_width(row->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, row->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, row->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW;
- if (table_border_is_more_eyecatching(a, *a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx, a, *a_src, &b, b_src)) {
*a = b;
*a_src = b_src;
}
@@ -937,11 +1015,12 @@ bool table_cell_top_process_row(struct box *cell, struct
box *row,
b.style = css_computed_border_top_style(row->style);
b.color = css_computed_border_top_color(row->style, &b.c);
css_computed_border_top_width(row->style, &b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit, row->style);
+ b.width = nscss_len2px(len_ctx, b.width, b.unit, row->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_ROW;
- if (table_border_is_more_eyecatching(a, *a_src, &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ a, *a_src, &b, b_src)) {
*a = b;
*a_src = b_src;
}
@@ -975,13 +1054,13 @@ bool table_cell_top_process_row(struct box *cell, struct
box *row,
c->style, &b.c);
css_computed_border_bottom_width(c->style,
&b.width, &b.unit);
- b.width = nscss_len2px(b.width, b.unit,
- c->style);
+ b.width = nscss_len2px(len_ctx,
+ b.width, b.unit, c->style);
b.unit = CSS_UNIT_PX;
b_src = BOX_TABLE_CELL;
- if (table_border_is_more_eyecatching(a, *a_src,
- &b, b_src)) {
+ if (table_border_is_more_eyecatching(len_ctx,
+ a, *a_src, &b, b_src)) {
*a = b;
*a_src = b_src;
}
diff --git a/render/table.h b/render/table.h
index ecd3043..2eeffe6 100644
--- a/render/table.h
+++ b/render/table.h
@@ -28,7 +28,11 @@
struct box;
-bool table_calculate_column_types(struct box *table);
-void table_used_border_for_cell(struct box *cell);
+bool table_calculate_column_types(
+ const nscss_len_ctx *len_ctx,
+ struct box *table);
+void table_used_border_for_cell(
+ const nscss_len_ctx *len_ctx,
+ struct box *cell);
#endif
-----------------------------------------------------------------------
Summary of changes:
--
NetSurf Browser
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