s3rius/squeekboard
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Improve icon rendering.

Browse Source
This commit is contained in:
Daiki Ueno
2011-08-24 17:05:41 +09:00
parent 828b2d66d1
commit 0772898b83
3 changed files with 132 additions and 133 deletions
Download Patch File Download Diff File Expand all files Collapse all files

116
eek/eek-renderer.c
View File

@ -440,8 +440,15 @@ render_key (EekRenderer *self,
gulong oref;
EekSymbol *symbol;
GHashTable *outline_surface_cache;
PangoLayout *layout;
PangoRectangle extents = { 0, };
EekColor foreground;
/* render outline */
eek_element_get_bounds (EEK_ELEMENT(key), &bounds);
bounds.width *= priv->scale;
bounds.height *= priv->scale;
oref = eek_key_get_oref (key);
if (oref == 0)
return;
@ -458,8 +465,8 @@ render_key (EekRenderer *self,
outline_surface =
cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
bounds.width * priv->scale,
bounds.height * priv->scale);
bounds.width,
bounds.height);
cr = cairo_create (outline_surface);
/* blank background */
@ -481,36 +488,66 @@ render_key (EekRenderer *self,
cairo_set_source_surface (cr, outline_surface, 0.0, 0.0);
cairo_paint (cr);
/* render icon (if any) */
symbol = eek_key_get_symbol_with_fallback (key, 0, 0);
if (EEK_RENDERER_GET_CLASS(self)->render_key_icon &&
symbol && eek_symbol_get_icon_name (symbol)) {
eek_renderer_render_key_icon (self, cr, key, 1.0, 0);
} else {
PangoLayout *layout;
PangoRectangle extents = { 0, };
EekColor foreground;
if (!symbol)
return;
layout = pango_cairo_create_layout (cr);
eek_renderer_render_key_label (self, layout, key);
pango_layout_get_extents (layout, NULL, &extents);
if (eek_symbol_get_icon_name (symbol)) {
cairo_surface_t *icon_surface =
eek_renderer_get_icon_surface (self,
eek_symbol_get_icon_name (symbol),
MIN(bounds.width, bounds.height));
if (icon_surface) {
gint width = cairo_image_surface_get_width (icon_surface);
gint height = cairo_image_surface_get_height (icon_surface);
gdouble scale;
cairo_save (cr);
cairo_move_to
(cr,
(bounds.width * priv->scale - extents.width / PANGO_SCALE) / 2,
(bounds.height * priv->scale - extents.height / PANGO_SCALE) / 2);
if (height * bounds.width / width <= bounds.height)
scale = bounds.width / width;
else if (width * bounds.height / height <= bounds.width)
scale = bounds.height / height;
else {
if (width * bounds.height < height * bounds.width)
scale = width / bounds.width;
else
scale = height / bounds.height;
}
eek_renderer_get_foreground_color (self, EEK_ELEMENT(key), &foreground);
cairo_set_source_rgba (cr,
foreground.red,
foreground.green,
foreground.blue,
foreground.alpha);
pango_cairo_show_layout (cr, layout);
cairo_restore (cr);
g_object_unref (layout);
cairo_save (cr);
cairo_translate (cr,
(bounds.width - width * scale) / 2,
(bounds.height - height * scale) / 2);
cairo_rectangle (cr, 0, 0, width, height);
cairo_clip (cr);
cairo_set_source_surface (cr, icon_surface, 0.0, 0.0);
cairo_paint (cr);
cairo_restore (cr);
return;
}
}
/* render label */
layout = pango_cairo_create_layout (cr);
eek_renderer_render_key_label (self, layout, key);
pango_layout_get_extents (layout, NULL, &extents);
cairo_save (cr);
cairo_move_to
(cr,
(bounds.width - extents.width / PANGO_SCALE) / 2,
(bounds.height - extents.height / PANGO_SCALE) / 2);
eek_renderer_get_foreground_color (self, EEK_ELEMENT(key), &foreground);
cairo_set_source_rgba (cr,
foreground.red,
foreground.green,
foreground.blue,
foreground.alpha);
pango_cairo_show_layout (cr, layout);
cairo_restore (cr);
g_object_unref (layout);
}
void
@ -1040,22 +1077,19 @@ eek_renderer_render_key_outline (EekRenderer *renderer,
rotate);
}
void
eek_renderer_render_key_icon (EekRenderer *renderer,
cairo_t *cr,
EekKey *key,
gdouble scale,
gboolean rotate)
cairo_surface_t *
eek_renderer_get_icon_surface (EekRenderer *renderer,
const gchar *icon_name,
gint size)
{
g_return_if_fail (EEK_IS_RENDERER(renderer));
g_return_if_fail (EEK_IS_KEY(key));
g_return_if_fail (scale >= 0.0);
EekRendererClass *klass;
EEK_RENDERER_GET_CLASS(renderer)->render_key_icon (renderer,
cr,
key,
scale,
rotate);
g_return_val_if_fail (EEK_IS_RENDERER(renderer), NULL);
klass = EEK_RENDERER_GET_CLASS(renderer);
if (klass->get_icon_surface)
return klass->get_icon_surface (renderer, icon_name, size);
return NULL;
}
void