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icon-theme: Add gtk_icon_info_download_colored_texture()

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This is a way to get at recolored pixels and will replace all existing users
of _load_symbolic*()
This commit is contained in:
Alexander Larsson 2020-01-28 12:06:55 +01:00
parent afa6cc2369
commit 6ffb54f47f
2 changed files with 69 additions and 12 deletions
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74
gtk/gtkicontheme.c
View File

@ -3866,6 +3866,65 @@ gtk_icon_info_download_texture (GtkIconInfo *self,
return texture;
}
static void
init_color_matrix (graphene_matrix_t *color_matrix,
graphene_vec4_t *color_offset,
const GdkRGBA *foreground_color,
const GdkRGBA *success_color,
const GdkRGBA *warning_color,
const GdkRGBA *error_color)
{
GdkRGBA fg_default = { 0.7450980392156863, 0.7450980392156863, 0.7450980392156863, 1.0};
GdkRGBA success_default = { 0.3046921492332342,0.6015716792553597, 0.023437857633325704, 1.0};
GdkRGBA warning_default = {0.9570458533607996, 0.47266346227206835, 0.2421911955443656, 1.0 };
GdkRGBA error_default = { 0.796887159533074, 0 ,0, 1.0 };
const GdkRGBA *fg = foreground_color ? foreground_color : &fg_default;
const GdkRGBA *sc = success_color ? success_color : &success_default;
const GdkRGBA *wc = warning_color ? warning_color : &warning_default;
const GdkRGBA *ec = error_color ? error_color : &error_default;
graphene_matrix_init_from_float (color_matrix,
(float[16]) {
sc->red - fg->red, sc->green - fg->green, sc->blue - fg->blue, 0,
wc->red - fg->red, wc->green - fg->green, wc->blue - fg->blue, 0,
ec->red - fg->red, ec->green - fg->green, ec->blue - fg->blue, 0,
0, 0, 0, fg->alpha
});
graphene_vec4_init (color_offset, fg->red, fg->green, fg->blue, 0);
}
GdkTexture *
gtk_icon_info_download_colored_texture (GtkIconInfo *self,
const GdkRGBA *foreground_color,
const GdkRGBA *success_color,
const GdkRGBA *warning_color,
const GdkRGBA *error_color,
GError **error)
{
GdkTexture *texture, *colored_texture;
graphene_matrix_t matrix;
graphene_vec4_t offset;
cairo_surface_t *surface;
texture = gtk_icon_info_download_texture (self, error);
if (texture == NULL || gtk_icon_info_is_symbolic (self))
return texture;
init_color_matrix (&matrix, &offset,
foreground_color, success_color,
warning_color, error_color);
surface = gdk_texture_download_surface (texture);
gdk_cairo_image_surface_recolor (surface, &matrix, &offset);
colored_texture = gdk_texture_new_for_surface (surface);
cairo_surface_destroy (surface);
g_object_unref (texture);
return colored_texture;
}
static void
icon_info_paintable_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
@ -3919,21 +3978,12 @@ gtk_icon_info_snapshot_with_colors (GtkIconInfo *icon_info,
if (symbolic)
{
const GdkRGBA *fg = foreground_color;
const GdkRGBA *sc = success_color;
const GdkRGBA *wc = warning_color;
const GdkRGBA *ec = error_color;
graphene_matrix_t matrix;
graphene_vec4_t offset;
graphene_matrix_init_from_float (&matrix,
(float[16]) {
sc->red - fg->red, sc->green - fg->green, sc->blue - fg->blue, 0,
wc->red - fg->red, wc->green - fg->green, wc->blue - fg->blue, 0,
ec->red - fg->red, ec->green - fg->green, ec->blue - fg->blue, 0,
0, 0, 0, fg->alpha
});
graphene_vec4_init (&offset, fg->red, fg->green, fg->blue, 0);
init_color_matrix (&matrix, &offset,
foreground_color, success_color,
warning_color, error_color);
gtk_snapshot_push_color_matrix (snapshot, &matrix, &offset);
}

7
gtk/gtkicontheme.h
View File

@ -216,6 +216,13 @@ gboolean gtk_icon_info_is_symbolic (GtkIconInfo *self);
GDK_AVAILABLE_IN_ALL
GdkTexture * gtk_icon_info_download_texture (GtkIconInfo *self,
GError **error);
GDK_AVAILABLE_IN_ALL
GdkTexture * gtk_icon_info_download_colored_texture (GtkIconInfo *self,
const GdkRGBA *foreground_color,
const GdkRGBA *success_color,
const GdkRGBA *warning_color,
const GdkRGBA *error_color,
GError **error);
GDK_AVAILABLE_IN_ALL
void gtk_icon_info_snapshot_with_colors (GtkIconInfo *icon_info,