Commit: 2b107beffd9b408ac1464288d07ee96214c09a30
Author: Campbell Barton
Date: Mon Nov 10 20:56:17 2014 +0100
Branches: master
https://developer.blender.org/rB2b107beffd9b408ac1464288d07ee96214c09a30
Fix T39144: text-select scrolling too fast
Use a timer to get predictable speed.
===================================================================
M source/blender/editors/space_text/space_text.c
M source/blender/editors/space_text/text_draw.c
M source/blender/editors/space_text/text_intern.h
M source/blender/editors/space_text/text_ops.c
===================================================================
diff --git a/source/blender/editors/space_text/space_text.c
b/source/blender/editors/space_text/space_text.c
index 1e710b8..d890b9f 100644
--- a/source/blender/editors/space_text/space_text.c
+++ b/source/blender/editors/space_text/space_text.c
@@ -135,7 +135,7 @@ static void text_listener(bScreen *UNUSED(sc), ScrArea *sa,
wmNotifier *wmn)
break;
case ND_CURSOR:
if (st->text && st->text ==
wmn->reference)
- text_scroll_to_cursor(st, sa);
+ text_scroll_to_cursor__area(st,
sa, true);
ED_area_tag_redraw(sa);
break;
@@ -156,7 +156,7 @@ static void text_listener(bScreen *UNUSED(sc), ScrArea *sa,
wmNotifier *wmn)
break;
case NA_SELECTED:
if (st->text && st->text ==
wmn->reference)
- text_scroll_to_cursor(st, sa);
+ text_scroll_to_cursor__area(st,
sa, true);
break;
}
diff --git a/source/blender/editors/space_text/text_draw.c
b/source/blender/editors/space_text/text_draw.c
index af827d6..315f8a0 100644
--- a/source/blender/editors/space_text/text_draw.c
+++ b/source/blender/editors/space_text/text_draw.c
@@ -28,8 +28,6 @@
* \ingroup sptext
*/
-
-
#include "MEM_guardedalloc.h"
#include "BLF_api.h"
@@ -44,6 +42,7 @@
#include "BKE_context.h"
#include "BKE_suggestions.h"
#include "BKE_text.h"
+#include "BKE_screen.h"
#include "BIF_gl.h"
@@ -1461,22 +1460,15 @@ void text_update_character_width(SpaceText *st)
/* Moves the view to the cursor location,
* also used to make sure the view isn't outside the file */
-void text_scroll_to_cursor(SpaceText *st, ScrArea *sa)
+void text_scroll_to_cursor(SpaceText *st, ARegion *ar, const bool center)
{
Text *text;
- ARegion *ar = NULL;
- int i, x, winx = 0;
+ int i, x, winx = ar->winx;
if (ELEM(NULL, st, st->text, st->text->curl)) return;
text = st->text;
- for (ar = sa->regionbase.first; ar; ar = ar->next)
- if (ar->regiontype == RGN_TYPE_WINDOW) {
- winx = ar->winx;
- break;
- }
-
text_update_character_width(st);
i = txt_get_span(text->lines.first, text->sell);
@@ -1486,8 +1478,19 @@ void text_scroll_to_cursor(SpaceText *st, ScrArea *sa)
i += offl;
}
- if (st->top + st->viewlines <= i || st->top > i)
- st->top = i - st->viewlines / 2;
+ if (center) {
+ if (st->top + st->viewlines <= i || st->top > i) {
+ st->top = i - st->viewlines / 2;
+ }
+ }
+ else {
+ if (st->top + st->viewlines <= i) {
+ st->top = i - (st->viewlines - 1);
+ }
+ else if (st->top > i) {
+ st->top = i;
+ }
+ }
if (st->wordwrap) {
st->left = 0;
@@ -1496,8 +1499,19 @@ void text_scroll_to_cursor(SpaceText *st, ScrArea *sa)
x = st->cwidth * (text_get_char_pos(st, text->sell->line,
text->selc) - st->left);
winx -= TXT_OFFSET + (st->showlinenrs ? TEXTXLOC : 0) +
TXT_SCROLL_WIDTH;
- if (x <= 0 || x > winx)
- st->left += (x - winx / 2) / st->cwidth;
+ if (center) {
+ if (x <= 0 || x > winx) {
+ st->left += (x - winx / 2) / st->cwidth;
+ }
+ }
+ else {
+ if (x <= 0) {
+ st->left += ((x + 1) / st->cwidth) - 1;
+ }
+ else if (x > winx) {
+ st->left += ((x - (winx + 1)) / st->cwidth) + 1;
+ }
+ }
}
if (st->top < 0) st->top = 0;
@@ -1507,10 +1521,24 @@ void text_scroll_to_cursor(SpaceText *st, ScrArea *sa)
st->scroll_accum[1] = 0.0f;
}
+/* takes an area instead of a region, use for listeners */
+void text_scroll_to_cursor__area(SpaceText *st, ScrArea *sa, const bool center)
+{
+ ARegion *ar;
+
+ if (ELEM(NULL, st, st->text, st->text->curl)) return;
+
+ ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
+
+ if (ar) {
+ text_scroll_to_cursor(st, ar, center);
+ }
+}
+
void text_update_cursor_moved(bContext *C)
{
ScrArea *sa = CTX_wm_area(C);
SpaceText *st = CTX_wm_space_text(C);
- text_scroll_to_cursor(st, sa);
+ text_scroll_to_cursor__area(st, sa, true);
}
diff --git a/source/blender/editors/space_text/text_intern.h
b/source/blender/editors/space_text/text_intern.h
index d4cd029..5483cf0 100644
--- a/source/blender/editors/space_text/text_intern.h
+++ b/source/blender/editors/space_text/text_intern.h
@@ -50,7 +50,8 @@ void draw_text_main(struct SpaceText *st, struct ARegion *ar);
void text_update_line_edited(struct TextLine *line);
void text_update_edited(struct Text *text);
void text_update_character_width(struct SpaceText *st);
-void text_scroll_to_cursor(struct SpaceText *st, struct ScrArea *sa);
+void text_scroll_to_cursor(struct SpaceText *st, struct ARegion *ar, bool
center);
+void text_scroll_to_cursor__area(struct SpaceText *st, struct ScrArea *sa,
bool center);
void text_update_cursor_moved(struct bContext *C);
#define TXT_OFFSET ((int)(0.5f * U.widget_unit))
diff --git a/source/blender/editors/space_text/text_ops.c
b/source/blender/editors/space_text/text_ops.c
index 3b3c86d..5bf0100 100644
--- a/source/blender/editors/space_text/text_ops.c
+++ b/source/blender/editors/space_text/text_ops.c
@@ -2415,6 +2415,7 @@ typedef struct SetSelection {
int selecting;
int selc, sell;
short old[2];
+ wmTimer *timer; /* needed for scrolling when mouse at region bounds */
} SetSelection;
static int flatten_width(SpaceText *st, const char *str)
@@ -2629,6 +2630,29 @@ static void text_cursor_set_to_pos(SpaceText *st,
ARegion *ar, int x, int y, con
if (!sel) txt_pop_sel(text);
}
+static void text_cursor_timer_ensure(bContext *C, SetSelection *ssel)
+{
+ if (ssel->timer == NULL) {
+ wmWindowManager *wm = CTX_wm_manager(C);
+ wmWindow *win = CTX_wm_window(C);
+
+ ssel->timer = WM_event_add_timer(wm, win, TIMER, 0.02f);
+ }
+}
+
+static void text_cursor_timer_remove(bContext *C, SetSelection *ssel)
+{
+ if (ssel->timer) {
+ wmWindowManager *wm = CTX_wm_manager(C);
+ wmWindow *win = CTX_wm_window(C);
+
+ WM_event_remove_timer(wm, win, ssel->timer);
+ }
+ ssel->timer = NULL;
+}
+
+
+
static void text_cursor_set_apply(bContext *C, wmOperator *op, const wmEvent
*event)
{
SpaceText *st = CTX_wm_space_text(C);
@@ -2636,32 +2660,34 @@ static void text_cursor_set_apply(bContext *C,
wmOperator *op, const wmEvent *ev
SetSelection *ssel = op->customdata;
if (event->mval[1] < 0 || event->mval[1] > ar->winy) {
- int d = (ssel->old[1] - event->mval[1]) * st->pix_per_line;
- if (d) txt_screen_skip(st, ar, d);
+ text_cursor_timer_ensure(C, ssel);
- text_cursor_set_to_pos(st, ar, event->mval[0], event->mval[1] <
0 ? 0 : ar->winy, 1);
-
- text_update_cursor_moved(C);
- WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
+ if (event->type == TIMER) {
+ text_cursor_set_to_pos(st, ar, event->mval[0],
event->mval[1], 1);
+ text_scroll_to_cursor(st, ar, false);
+ WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
+ }
}
else if (!st->wordwrap && (event->mval[0] < 0 || event->mval[0] >
ar->winx)) {
- if (event->mval[0] > ar->winx) st->left++;
- else if (event->mval[0] < 0 && st->left > 0) st->left--;
-
- text_cursor_set_to_pos(st, ar, event->mval[0], event->mval[1],
1);
+ text_cursor_timer_ensure(C, ssel);
- text_update_cursor_moved(C);
- WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
- // XXX PIL_sleep_ms(10);
+ if (event->type == TIMER) {
+ text_cursor_set_to_pos(st, ar, CLAMPIS(event->mval[0],
0, ar->winx), event->mval[1], 1);
+ text_scroll_to_cursor(st, ar, false);
+ WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
+ }
}
else {
- text_cursor_set_to_pos(st, ar, event->mval[0], event->mval[1],
1);
+ text_cursor_timer_remove(C, ssel);
- text_update_cursor_moved(C);
- WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
+ if (event->type != TIMER) {
+ text_cursor_set_to_pos(st, ar, event->mval[0],
event->mval[1], 1);
+ text_scroll_to_cursor(st, ar, false);
+ WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
- ssel->old[0] = event->mval[0];
- ssel->old[1] = event->mval[1];
+ ssel->old[0] = event->mval[0];
+ ssel->old[1] = event->mval[1];
+ }
}
}
@@ -2681,6 +2707,7 @@ static void text_cursor_set_exit(bContext *C, wmOperator
*op)
text_update_cursor_moved(C);
WM_event_add_notifier(C, NC_TEXT | ND_CURSOR, st->text);
+ text_cursor_timer_remove(C, ssel);
MEM_freeN(ssel);
}
@@ -2717,6 +2744,7 @@ static int text_set_selection_modal(bContext *C,
wmOperator *op, const wmEvent *
case RIGHTMOUSE:
text_cursor_set_exit(C, op);
return OPERATOR_FINISHED;
+ case TIMER:
case MOUSEMOVE:
text_cursor_set_apply(C, op, event);
break;
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