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preview-widget: Remove meta_preview_get_clip_region

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The concept of a clip region doesn't make sense now that we have anti-aliased
corners and a full alpha channel. Once the theme transition is complete,
creating a preview image with an alpha channel will be possible by passing
an ARGB surface to gtk_widget_draw(preview_widget, ...);

https://bugzilla.gnome.org/show_bug.cgi?id=676052
This commit is contained in:
Jasper St. Pierre 2012-03-12 01:06:41 -04:00
parent 8cb7a450ae
commit c2a0719e44
2 changed files with 0 additions and 118 deletions
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4
src/meta/preview-widget.h
View File

@ -78,10 +78,6 @@ void meta_preview_set_frame_flags (MetaPreview *preview,
void meta_preview_set_button_layout (MetaPreview *preview,
const MetaButtonLayout *button_layout);
cairo_region_t * meta_preview_get_clip_region (MetaPreview *preview,
gint new_window_width,
gint new_window_height);
GdkPixbuf* meta_preview_get_icon (void);
GdkPixbuf* meta_preview_get_mini_icon (void);

114
src/ui/preview-widget.c
View File

@ -465,117 +465,3 @@ meta_preview_get_mini_icon (void)
return default_icon;
}
cairo_region_t *
meta_preview_get_clip_region (MetaPreview *preview, gint new_window_width, gint new_window_height)
{
cairo_rectangle_int_t xrect;
cairo_region_t *corners_xregion, *window_xregion;
gint flags;
MetaFrameLayout *fgeom;
MetaFrameStyle *frame_style;
g_return_val_if_fail (META_IS_PREVIEW (preview), NULL);
flags = (META_PREVIEW (preview)->flags);
window_xregion = cairo_region_create ();
xrect.x = 0;
xrect.y = 0;
xrect.width = new_window_width;
xrect.height = new_window_height;
cairo_region_union_rectangle (window_xregion, &xrect);
if (preview->theme == NULL)
return window_xregion;
/* Otherwise, we do have a theme, so calculate the corners */
frame_style = meta_theme_get_frame_style (preview->theme,
META_FRAME_TYPE_NORMAL, flags);
fgeom = frame_style->layout;
corners_xregion = cairo_region_create ();
if (fgeom->top_left_corner_rounded_radius != 0)
{
const int corner = fgeom->top_left_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
xrect.x = 0;
xrect.y = i;
xrect.width = width;
xrect.height = 1;
cairo_region_union_rectangle (corners_xregion, &xrect);
}
}
if (fgeom->top_right_corner_rounded_radius != 0)
{
const int corner = fgeom->top_right_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
xrect.x = new_window_width - width;
xrect.y = i;
xrect.width = width;
xrect.height = 1;
cairo_region_union_rectangle (corners_xregion, &xrect);
}
}
if (fgeom->bottom_left_corner_rounded_radius != 0)
{
const int corner = fgeom->bottom_left_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
xrect.x = 0;
xrect.y = new_window_height - i - 1;
xrect.width = width;
xrect.height = 1;
cairo_region_union_rectangle (corners_xregion, &xrect);
}
}
if (fgeom->bottom_right_corner_rounded_radius != 0)
{
const int corner = fgeom->bottom_right_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
xrect.x = new_window_width - width;
xrect.y = new_window_height - i - 1;
xrect.width = width;
xrect.height = 1;
cairo_region_union_rectangle (corners_xregion, &xrect);
}
}
cairo_region_subtract (window_xregion, corners_xregion);
cairo_region_destroy (corners_xregion);
return window_xregion;
}