*/
#include "fallback-c89.c"
-typedef struct {
- cairo_rectangle_t image_rect;
- GtkCssImage *image;
- GtkRoundedBox clip_box;
-
- gint idx;
-} GtkThemingBackgroundLayer;
-
-static void
-_gtk_theming_background_layer_apply_origin (GtkThemingBackground *bg,
- GtkThemingBackgroundLayer *layer)
-{
- cairo_rectangle_t image_rect;
- GtkCssValue *value = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_ORIGIN);
- GtkCssArea origin = _gtk_css_area_value_get (_gtk_css_array_value_get_nth (value, layer->idx));
-
- /* The default size of the background image depends on the
- background-origin value as this affects the top left
- and the bottom right corners. */
- switch (origin) {
- case GTK_CSS_AREA_BORDER_BOX:
- image_rect.x = 0;
- image_rect.y = 0;
- image_rect.width = bg->paint_area.width;
- image_rect.height = bg->paint_area.height;
- break;
- case GTK_CSS_AREA_CONTENT_BOX:
- image_rect.x = bg->border.left + bg->padding.left;
- image_rect.y = bg->border.top + bg->padding.top;
- image_rect.width = bg->paint_area.width - bg->border.left - bg->border.right - bg->padding.left - bg->padding.right;
- image_rect.height = bg->paint_area.height - bg->border.top - bg->border.bottom - bg->padding.top - bg->padding.bottom;
- break;
- case GTK_CSS_AREA_PADDING_BOX:
- default:
- image_rect.x = bg->border.left;
- image_rect.y = bg->border.top;
- image_rect.width = bg->paint_area.width - bg->border.left - bg->border.right;
- image_rect.height = bg->paint_area.height - bg->border.top - bg->border.bottom;
- break;
- }
-
- /* XXX: image_rect might have negative width/height here.
- * Do we need to do something about it? */
- layer->image_rect = image_rect;
-}
-
-static void
-_gtk_theming_background_apply_clip (GtkThemingBackground *bg,
- GtkRoundedBox *box,
- GtkCssArea clip)
+static const GtkRoundedBox *
+gtk_theming_background_get_box (GtkThemingBackground *bg,
+ GtkCssArea area)
{
- if (clip == GTK_CSS_AREA_PADDING_BOX)
+ switch (area)
{
- _gtk_rounded_box_shrink (box,
- bg->border.top, bg->border.right,
- bg->border.bottom, bg->border.left);
- }
- else if (clip == GTK_CSS_AREA_CONTENT_BOX)
- {
- _gtk_rounded_box_shrink (box,
- bg->border.top + bg->padding.top,
- bg->border.right + bg->padding.right,
- bg->border.bottom + bg->padding.bottom,
- bg->border.left + bg->padding.left);
- }
-}
-
-static void
-_gtk_theming_background_layer_apply_clip (GtkThemingBackground *bg,
- GtkThemingBackgroundLayer *layer)
-{
- GtkCssValue *value = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_CLIP);
- GtkCssArea clip = _gtk_css_area_value_get (_gtk_css_array_value_get_nth (value, layer->idx));
-
- _gtk_theming_background_apply_clip (bg, &layer->clip_box, clip);
+ case GTK_CSS_AREA_BORDER_BOX:
+ return &bg->border_box;
+ case GTK_CSS_AREA_PADDING_BOX:
+ return &bg->padding_box;
+ case GTK_CSS_AREA_CONTENT_BOX:
+ return &bg->content_box;
+ default:
+ g_return_val_if_reached (&bg->border_box);
+ }
}
static void
cairo_t *cr,
GtkCssValue *background_image)
{
- GtkRoundedBox clip_box;
gint n_values = _gtk_css_array_value_get_n_values (background_image);
GtkCssArea clip = _gtk_css_area_value_get
(_gtk_css_array_value_get_nth
(_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_CLIP),
n_values - 1));
- clip_box = bg->border_box;
- _gtk_theming_background_apply_clip (bg, &clip_box, clip);
-
cairo_save (cr);
- _gtk_rounded_box_path (&clip_box, cr);
+ _gtk_rounded_box_path (gtk_theming_background_get_box (bg, clip), cr);
cairo_clip (cr);
gdk_cairo_set_source_rgba (cr, &bg->bg_color);
static void
_gtk_theming_background_paint_layer (GtkThemingBackground *bg,
- GtkThemingBackgroundLayer *layer,
+ guint idx,
cairo_t *cr)
{
GtkCssRepeatStyle hrepeat, vrepeat;
const GtkCssValue *pos, *repeat;
+ GtkCssImage *image;
+ const GtkRoundedBox *origin;
double image_width, image_height;
double width, height;
- if (layer->image == NULL
- || layer->image_rect.width <= 0
- || layer->image_rect.height <= 0)
- return;
-
- cairo_save (cr);
-
- _gtk_rounded_box_path (&layer->clip_box, cr);
- cairo_clip (cr);
-
- pos = _gtk_css_array_value_get_nth (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_POSITION), layer->idx);
- repeat = _gtk_css_array_value_get_nth (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_REPEAT), layer->idx);
+ pos = _gtk_css_array_value_get_nth (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_POSITION), idx);
+ repeat = _gtk_css_array_value_get_nth (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_REPEAT), idx);
hrepeat = _gtk_css_background_repeat_value_get_x (repeat);
vrepeat = _gtk_css_background_repeat_value_get_y (repeat);
- width = layer->image_rect.width;
- height = layer->image_rect.height;
+ image = _gtk_css_image_value_get_image (
+ _gtk_css_array_value_get_nth (
+ _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_IMAGE),
+ idx));
+ origin = gtk_theming_background_get_box (
+ bg,
+ _gtk_css_area_value_get (
+ _gtk_css_array_value_get_nth (
+ _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_ORIGIN),
+ idx)));
+ width = origin->box.width;
+ height = origin->box.height;
+
+ if (image == NULL || width <= 0 || height <= 0)
+ return;
- _gtk_css_bg_size_value_compute_size (_gtk_css_array_value_get_nth (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_SIZE), layer->idx),
- layer->image,
+ _gtk_css_bg_size_value_compute_size (_gtk_css_array_value_get_nth (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_SIZE), idx),
+ image,
width,
height,
&image_width,
&image_height);
+ if (image_width <= 0 || image_height <= 0)
+ return;
+
/* optimization */
if (image_width == width)
hrepeat = GTK_CSS_REPEAT_STYLE_NO_REPEAT;
if (image_height == height)
vrepeat = GTK_CSS_REPEAT_STYLE_NO_REPEAT;
- cairo_translate (cr, layer->image_rect.x, layer->image_rect.y);
+
+ cairo_save (cr);
+
+ _gtk_rounded_box_path (
+ gtk_theming_background_get_box (
+ bg,
+ _gtk_css_area_value_get (
+ _gtk_css_array_value_get_nth (
+ _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_CLIP),
+ idx))),
+ cr);
+ cairo_clip (cr);
+
+
+ cairo_translate (cr, origin->box.x, origin->box.y);
if (hrepeat == GTK_CSS_REPEAT_STYLE_NO_REPEAT && vrepeat == GTK_CSS_REPEAT_STYLE_NO_REPEAT)
{
_gtk_css_position_value_get_x (pos, width - image_width),
_gtk_css_position_value_get_y (pos, height - image_height));
/* shortcut for normal case */
- _gtk_css_image_draw (layer->image, cr, image_width, image_height);
+ _gtk_css_image_draw (image, cr, image_width, image_height);
}
else
{
cairo_translate (cr2,
0.5 * (surface_width - image_width),
0.5 * (surface_height - image_height));
- _gtk_css_image_draw (layer->image, cr2, image_width, image_height);
+ _gtk_css_image_draw (image, cr2, image_width, image_height);
cairo_destroy (cr2);
cairo_set_source_surface (cr, surface,
cairo_fill (cr);
}
+
cairo_restore (cr);
}
&bg->padding_box);
}
-static void
-_gtk_theming_background_init_layer (GtkThemingBackground *bg,
- GtkThemingBackgroundLayer *layer,
- GtkCssValue *background_image,
- gint idx)
-{
- layer->idx = idx;
- layer->clip_box = bg->border_box;
-
- _gtk_theming_background_layer_apply_clip (bg, layer);
- _gtk_theming_background_layer_apply_origin (bg, layer);
-
- layer->image = _gtk_css_image_value_get_image (_gtk_css_array_value_get_nth (background_image, layer->idx));
-}
-
static void
_gtk_theming_background_init_context (GtkThemingBackground *bg)
{
- bg->flags = gtk_style_context_get_state (bg->context);
+ GtkStateFlags flags = gtk_style_context_get_state (bg->context);
+ GtkBorder border, padding;
- gtk_style_context_get_border (bg->context, bg->flags, &bg->border);
- gtk_style_context_get_padding (bg->context, bg->flags, &bg->padding);
- gtk_style_context_get_background_color (bg->context, bg->flags, &bg->bg_color);
+ gtk_style_context_get_border (bg->context, flags, &border);
+ gtk_style_context_get_padding (bg->context, flags, &padding);
+ gtk_style_context_get_background_color (bg->context, flags, &bg->bg_color);
/* In the CSS box model, by default the background positioning area is
* the padding-box, i.e. all the border-box minus the borders themselves,
bg->padding_box = bg->border_box;
_gtk_rounded_box_shrink (&bg->padding_box,
- bg->border.top, bg->border.right,
- bg->border.bottom, bg->border.left);
+ border.top, border.right,
+ border.bottom, border.left);
+
+ bg->content_box = bg->padding_box;
+ _gtk_rounded_box_shrink (&bg->content_box,
+ padding.top, padding.right,
+ padding.bottom, padding.left);
}
void
cairo_t *cr)
{
gint idx;
- GtkThemingBackgroundLayer layer;
GtkCssValue *background_image;
background_image = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_IMAGE);
for (idx = _gtk_css_array_value_get_n_values (background_image) - 1; idx >= 0; idx--)
{
- _gtk_theming_background_init_layer (bg, &layer, background_image, idx);
- _gtk_theming_background_paint_layer (bg, &layer, cr);
+ _gtk_theming_background_paint_layer (bg, idx, cr);
}
_gtk_theming_background_apply_shadow (bg, cr);
projects / ~andy / gtk / blobdiff