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...commit
http://git.netsurf-browser.org/netsurf.git/commit/ffc199d778c7666edca028da965009574fdfd3df
...tree
http://git.netsurf-browser.org/netsurf.git/tree/ffc199d778c7666edca028da965009574fdfd3df
The branch, master has been updated
via ffc199d778c7666edca028da965009574fdfd3df (commit)
via 7567f6407512acb44199a11b6496a614ca659fe2 (commit)
from e02020198da093a4856b149c926668c32cfcc7a4 (commit)
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- Log -----------------------------------------------------------------
commitdiff
http://git.netsurf-browser.org/netsurf.git/commit/?id=ffc199d778c7666edca028da965009574fdfd3df
commit ffc199d778c7666edca028da965009574fdfd3df
Author: Michael Drake <[email protected]>
Commit: Michael Drake <[email protected]>
CSS: Add helpers to convert between css and physical pixels.
diff --git a/content/handlers/css/utils.h b/content/handlers/css/utils.h
index 0e723f7..e35a660 100644
--- a/content/handlers/css/utils.h
+++ b/content/handlers/css/utils.h
@@ -79,6 +79,31 @@ css_fixed nscss_len2px(
css_unit unit,
const css_computed_style *style);
+/**
+ * Convert css pixels to physical pixels.
+ *
+ * \param[in] css_pixels Length in css pixels.
+ * \return length in physical pixels
+ */
+static inline css_fixed nscss_pixels_css_to_physical(
+ css_fixed css_pixels)
+{
+ return FDIV(FMUL(css_pixels, nscss_screen_dpi),
+ nscss_baseline_pixel_density);
+}
+
+/**
+ * Convert physical pixels to css pixels.
+ *
+ * \param[in] physical_pixels Length in physical pixels.
+ * \return length in css pixels
+ */
+static inline css_fixed nscss_pixels_physical_to_css(
+ css_fixed physical_pixels)
+{
+ return FDIV(FMUL(physical_pixels, nscss_baseline_pixel_density),
+ nscss_screen_dpi);
+}
/**
* Temporary helper wrappers for for libcss computed style getter, while
commitdiff
http://git.netsurf-browser.org/netsurf.git/commit/?id=7567f6407512acb44199a11b6496a614ca659fe2
commit 7567f6407512acb44199a11b6496a614ca659fe2
Author: Michael Drake <[email protected]>
Commit: Michael Drake <[email protected]>
CSS: Extern the nscss_baseline_pixel_density value.
Front ends should be able to set this, or it should
be a config option.
diff --git a/content/handlers/css/utils.h b/content/handlers/css/utils.h
index c8f4c82..0e723f7 100644
--- a/content/handlers/css/utils.h
+++ b/content/handlers/css/utils.h
@@ -26,6 +26,9 @@
/** DPI of the screen, in fixed point units */
extern css_fixed nscss_screen_dpi;
+/** Medium screen density for device viewing distance. */
+extern css_fixed nscss_baseline_pixel_density;
+
/**
* Length conversion context data.
*/
-----------------------------------------------------------------------
Summary of changes:
content/handlers/css/utils.h | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/content/handlers/css/utils.h b/content/handlers/css/utils.h
index c8f4c82..e35a660 100644
--- a/content/handlers/css/utils.h
+++ b/content/handlers/css/utils.h
@@ -26,6 +26,9 @@
/** DPI of the screen, in fixed point units */
extern css_fixed nscss_screen_dpi;
+/** Medium screen density for device viewing distance. */
+extern css_fixed nscss_baseline_pixel_density;
+
/**
* Length conversion context data.
*/
@@ -76,6 +79,31 @@ css_fixed nscss_len2px(
css_unit unit,
const css_computed_style *style);
+/**
+ * Convert css pixels to physical pixels.
+ *
+ * \param[in] css_pixels Length in css pixels.
+ * \return length in physical pixels
+ */
+static inline css_fixed nscss_pixels_css_to_physical(
+ css_fixed css_pixels)
+{
+ return FDIV(FMUL(css_pixels, nscss_screen_dpi),
+ nscss_baseline_pixel_density);
+}
+
+/**
+ * Convert physical pixels to css pixels.
+ *
+ * \param[in] physical_pixels Length in physical pixels.
+ * \return length in css pixels
+ */
+static inline css_fixed nscss_pixels_physical_to_css(
+ css_fixed physical_pixels)
+{
+ return FDIV(FMUL(physical_pixels, nscss_baseline_pixel_density),
+ nscss_screen_dpi);
+}
/**
* Temporary helper wrappers for for libcss computed style getter, while
--
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