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themingbackground: Introduce gtk_theming_background_get_box()

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to query the different clip boxes used by the background drawing code.
Use this function to query these boxes when clipping.
This commit is contained in:
Benjamin Otte 2012-10-27 02:16:42 +02:00
parent 12dec5279e
commit ba96c34787
1 changed files with 22 additions and 36 deletions
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58
gtk/gtkthemingbackground.c
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@ -44,7 +44,6 @@
typedef struct {
cairo_rectangle_t image_rect;
GtkRoundedBox clip_box;
gint idx;
} GtkThemingBackgroundLayer;
@ -87,35 +86,21 @@ _gtk_theming_background_layer_apply_origin (GtkThemingBackground *bg,
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
@ -123,18 +108,14 @@ _gtk_theming_background_paint_color (GtkThemingBackground *bg,
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);
@ -187,7 +168,14 @@ _gtk_theming_background_paint_layer (GtkThemingBackground *bg,
cairo_save (cr);
_gtk_rounded_box_path (&layer->clip_box, 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),
layer->idx))),
cr);
cairo_clip (cr);
@ -327,9 +315,7 @@ _gtk_theming_background_init_layer (GtkThemingBackground *bg,
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);
}