X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=gtk%2Fgtkthemingbackground.c;h=579d2be4dea32abe70be40ad73cd70fa39cd87b1;hb=3b2182e711ace4a2d6843848208224cd7525d530;hp=2a00228a7f96fe3b41f8cde22c93c8a1813f7bc8;hpb=a35df38443effc0edbe5e92dae493deb912b1cef;p=~andy%2Fgtk
diff --git a/gtk/gtkthemingbackground.c b/gtk/gtkthemingbackground.c
index 2a00228a7..579d2be4d 100644
--- a/gtk/gtkthemingbackground.c
+++ b/gtk/gtkthemingbackground.c
@@ -16,174 +16,271 @@
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see .
*/
-#include "gtkcsstypesprivate.h"
+#include "config.h"
+
#include "gtkthemingbackgroundprivate.h"
+
+#include "gtkcssarrayvalueprivate.h"
+#include "gtkcssbgsizevalueprivate.h"
+#include "gtkcssenumvalueprivate.h"
+#include "gtkcssimagevalueprivate.h"
+#include "gtkcssshadowsvalueprivate.h"
+#include "gtkcsspositionvalueprivate.h"
+#include "gtkcssrepeatvalueprivate.h"
+#include "gtkcsstypesprivate.h"
#include "gtkthemingengineprivate.h"
+#include
+
#include
-static void
-_gtk_theming_background_apply_window_background (GtkThemingBackground *bg,
- cairo_t *cr)
+/* this is in case round() is not provided by the compiler,
+ * such as in the case of C89 compilers, like MSVC
+ */
+#include "fallback-c89.c"
+
+static const GtkRoundedBox *
+gtk_theming_background_get_box (GtkThemingBackground *bg,
+ GtkCssArea area)
{
- if (gtk_theming_engine_has_class (bg->engine, "background"))
+ switch (area)
{
- cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.0); /* transparent */
- cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
- cairo_paint (cr);
- }
+ 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
-_gtk_theming_background_apply_origin (GtkThemingBackground *bg)
+_gtk_theming_background_paint_color (GtkThemingBackground *bg,
+ cairo_t *cr,
+ GtkCssValue *background_image)
{
- GtkCssArea origin;
- cairo_rectangle_t image_rect;
-
- gtk_theming_engine_get (bg->engine, bg->flags,
- "background-origin", &origin,
- NULL);
-
- /* 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;
- }
+ 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));
- bg->image_rect = image_rect;
+ cairo_save (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);
+ cairo_paint (cr);
+
+ cairo_restore (cr);
}
static void
-_gtk_theming_background_apply_clip (GtkThemingBackground *bg)
+_gtk_theming_background_paint_layer (GtkThemingBackground *bg,
+ guint idx,
+ cairo_t *cr)
{
- GtkCssArea clip;
+ GtkCssRepeatStyle hrepeat, vrepeat;
+ const GtkCssValue *pos, *repeat;
+ GtkCssImage *image;
+ const GtkRoundedBox *origin;
+ double image_width, image_height;
+ double width, height;
+
+ 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);
+ 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), 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;
- gtk_theming_engine_get (bg->engine, bg->flags,
- "background-clip", &clip,
- NULL);
- if (clip == GTK_CSS_AREA_PADDING_BOX)
+ 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_rounded_box_shrink (&bg->clip_box,
- bg->border.top, bg->border.right,
- bg->border.bottom, bg->border.left);
+ cairo_translate (cr,
+ _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 (image, cr, image_width, image_height);
}
- else if (clip == GTK_CSS_AREA_CONTENT_BOX)
+ else
{
- _gtk_rounded_box_shrink (&bg->clip_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);
- }
-}
+ int surface_width, surface_height;
+ cairo_rectangle_t fill_rect;
+ cairo_surface_t *surface;
+ cairo_t *cr2;
+
+ /* If âbackground-repeatâ is âroundâ for one (or both) dimensions,
+ * there is a second step. The UA must scale the image in that
+ * dimension (or both dimensions) so that it fits a whole number of
+ * times in the background positioning area. In the case of the width
+ * (height is analogous):
+ *
+ * If X â 0 is the width of the image after step one and W is the width
+ * of the background positioning area, then the rounded width
+ * X' = W / round(W / X) where round() is a function that returns the
+ * nearest natural number (integer greater than zero).
+ *
+ * If âbackground-repeatâ is âroundâ for one dimension only and if
+ * âbackground-sizeâ is âautoâ for the other dimension, then there is
+ * a third step: that other dimension is scaled so that the original
+ * aspect ratio is restored.
+ */
+ if (hrepeat == GTK_CSS_REPEAT_STYLE_ROUND)
+ {
+ double n = round (width / image_width);
-static void
-_gtk_theming_background_paint (GtkThemingBackground *bg,
- cairo_t *cr)
-{
- _gtk_rounded_box_path (&bg->clip_box, cr);
- gdk_cairo_set_source_rgba (cr, &bg->bg_color);
+ n = MAX (1, n);
- if (bg->pattern)
- {
- GtkCssBackgroundRepeat *repeat;
- cairo_surface_t *surface;
- int scale_width, scale_height;
+ if (vrepeat != GTK_CSS_REPEAT_STYLE_ROUND
+ /* && vsize == auto (it is by default) */)
+ image_height *= width / (image_width * n);
+ image_width = width / n;
+ }
+ if (vrepeat == GTK_CSS_REPEAT_STYLE_ROUND)
+ {
+ double n = round (height / image_height);
- gtk_theming_engine_get (bg->engine, bg->flags,
- "background-repeat", &repeat,
- NULL);
+ n = MAX (1, n);
- if (cairo_pattern_get_surface (bg->pattern, &surface) != CAIRO_STATUS_SUCCESS)
- surface = NULL;
+ if (hrepeat != GTK_CSS_REPEAT_STYLE_ROUND
+ /* && hsize == auto (it is by default) */)
+ image_width *= height / (image_height * n);
+ image_height = height / n;
+ }
- if (surface && repeat)
+ /* if hrepeat or vrepeat is 'space', we create a somewhat larger surface
+ * to store the extra space. */
+ if (hrepeat == GTK_CSS_REPEAT_STYLE_SPACE)
{
- scale_width = cairo_image_surface_get_width (surface);
- scale_height = cairo_image_surface_get_height (surface);
- if (repeat->repeat == GTK_CSS_BACKGROUND_REPEAT_STYLE_REPEAT)
- cairo_pattern_set_extend (bg->pattern, CAIRO_EXTEND_REPEAT);
- else if (repeat->repeat == GTK_CSS_BACKGROUND_REPEAT_STYLE_NO_REPEAT)
- cairo_pattern_set_extend (bg->pattern, CAIRO_EXTEND_NONE);
+ double n = floor (width / image_width);
+ surface_width = n ? round (width / n) : 0;
}
else
+ surface_width = round (image_width);
+
+ if (vrepeat == GTK_CSS_REPEAT_STYLE_SPACE)
{
- cairo_pattern_set_extend (bg->pattern, CAIRO_EXTEND_PAD);
- scale_width = bg->image_rect.width;
- scale_height = bg->image_rect.height;
+ double n = floor (height / image_height);
+ surface_height = n ? round (height / n) : 0;
}
-
- if (scale_width && scale_height)
+ else
+ surface_height = round (image_height);
+
+ surface = cairo_surface_create_similar (cairo_get_target (cr),
+ CAIRO_CONTENT_COLOR_ALPHA,
+ surface_width, surface_height);
+ cr2 = cairo_create (surface);
+ cairo_translate (cr2,
+ 0.5 * (surface_width - image_width),
+ 0.5 * (surface_height - image_height));
+ _gtk_css_image_draw (image, cr2, image_width, image_height);
+ cairo_destroy (cr2);
+
+ cairo_set_source_surface (cr, surface,
+ _gtk_css_position_value_get_x (pos, width - image_width),
+ _gtk_css_position_value_get_y (pos, height - image_height));
+ cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT);
+ cairo_surface_destroy (surface);
+
+ if (hrepeat == GTK_CSS_REPEAT_STYLE_NO_REPEAT)
{
- /* Fill background color first */
- cairo_fill_preserve (cr);
-
- cairo_translate (cr, bg->image_rect.x, bg->image_rect.y);
- cairo_scale (cr, scale_width, scale_height);
- cairo_set_source (cr, bg->pattern);
- cairo_scale (cr, 1.0 / scale_width, 1.0 / scale_height);
- cairo_translate (cr, -bg->image_rect.x, -bg->image_rect.y);
-
- g_free (repeat);
+ fill_rect.x = _gtk_css_position_value_get_x (pos, width - image_width);
+ fill_rect.width = image_width;
+ }
+ else
+ {
+ fill_rect.x = 0;
+ fill_rect.width = width;
+ }
- cairo_pattern_destroy (bg->pattern);
- bg->pattern = NULL;
+ if (vrepeat == GTK_CSS_REPEAT_STYLE_NO_REPEAT)
+ {
+ fill_rect.y = _gtk_css_position_value_get_y (pos, height - image_height);
+ fill_rect.height = image_height;
}
+ else
+ {
+ fill_rect.y = 0;
+ fill_rect.height = height;
+ }
+
+ cairo_rectangle (cr, fill_rect.x, fill_rect.y,
+ fill_rect.width, fill_rect.height);
+ cairo_fill (cr);
}
- cairo_fill (cr);
+
+ cairo_restore (cr);
}
static void
_gtk_theming_background_apply_shadow (GtkThemingBackground *bg,
cairo_t *cr)
{
- GtkShadow *box_shadow;
-
- gtk_theming_engine_get (bg->engine, bg->flags,
- "box-shadow", &box_shadow,
- NULL);
-
- if (box_shadow != NULL)
- {
- _gtk_box_shadow_render (box_shadow, cr, &bg->padding_box);
- _gtk_shadow_unref (box_shadow);
- }
+ _gtk_css_shadows_value_paint_box (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BOX_SHADOW),
+ cr,
+ &bg->padding_box);
}
static void
-_gtk_theming_background_init_engine (GtkThemingBackground *bg)
+_gtk_theming_background_init_context (GtkThemingBackground *bg)
{
- bg->flags = gtk_theming_engine_get_state (bg->engine);
+ GtkStateFlags flags = gtk_style_context_get_state (bg->context);
+ GtkBorder border, padding;
- gtk_theming_engine_get_border (bg->engine, bg->flags, &bg->border);
- gtk_theming_engine_get_padding (bg->engine, bg->flags, &bg->padding);
- gtk_theming_engine_get_background_color (bg->engine, 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,
@@ -193,20 +290,18 @@ _gtk_theming_background_init_engine (GtkThemingBackground *bg)
* In the future we might want to support different origins or clips, but
* right now we just shrink to the default.
*/
- _gtk_rounded_box_init_rect (&bg->padding_box, 0, 0, bg->paint_area.width, bg->paint_area.height);
- _gtk_rounded_box_apply_border_radius (&bg->padding_box, bg->engine, bg->flags, bg->junction);
+ _gtk_rounded_box_init_rect (&bg->border_box, 0, 0, bg->paint_area.width, bg->paint_area.height);
+ _gtk_rounded_box_apply_border_radius_for_context (&bg->border_box, bg->context, bg->junction);
- bg->clip_box = bg->padding_box;
+ 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);
-
- _gtk_theming_background_apply_clip (bg);
- _gtk_theming_background_apply_origin (bg);
+ border.top, border.right,
+ border.bottom, border.left);
- gtk_theming_engine_get (bg->engine, bg->flags,
- "background-image", &bg->pattern,
- NULL);
+ bg->content_box = bg->padding_box;
+ _gtk_rounded_box_shrink (&bg->content_box,
+ padding.top, padding.right,
+ padding.bottom, padding.left);
}
void
@@ -217,31 +312,59 @@ _gtk_theming_background_init (GtkThemingBackground *bg,
gdouble width,
gdouble height,
GtkJunctionSides junction)
+{
+ GtkStyleContext *context;
+
+ g_assert (bg != NULL);
+
+ context = _gtk_theming_engine_get_context (engine);
+ _gtk_theming_background_init_from_context (bg, context,
+ x, y, width, height,
+ junction);
+}
+
+void
+_gtk_theming_background_init_from_context (GtkThemingBackground *bg,
+ GtkStyleContext *context,
+ gdouble x,
+ gdouble y,
+ gdouble width,
+ gdouble height,
+ GtkJunctionSides junction)
{
g_assert (bg != NULL);
- bg->engine = engine;
+ bg->context = context;
bg->paint_area.x = x;
bg->paint_area.y = y;
bg->paint_area.width = width;
bg->paint_area.height = height;
- bg->pattern = NULL;
bg->junction = junction;
- _gtk_theming_background_init_engine (bg);
+ _gtk_theming_background_init_context (bg);
}
void
_gtk_theming_background_render (GtkThemingBackground *bg,
cairo_t *cr)
{
+ gint idx;
+ GtkCssValue *background_image;
+
+ background_image = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_IMAGE);
+
cairo_save (cr);
cairo_translate (cr, bg->paint_area.x, bg->paint_area.y);
- _gtk_theming_background_apply_window_background (bg, cr);
- _gtk_theming_background_paint (bg, cr);
+ _gtk_theming_background_paint_color (bg, cr, background_image);
+
+ for (idx = _gtk_css_array_value_get_n_values (background_image) - 1; idx >= 0; idx--)
+ {
+ _gtk_theming_background_paint_layer (bg, idx, cr);
+ }
+
_gtk_theming_background_apply_shadow (bg, cr);
cairo_restore (cr);
@@ -250,5 +373,12 @@ _gtk_theming_background_render (GtkThemingBackground *bg,
gboolean
_gtk_theming_background_has_background_image (GtkThemingBackground *bg)
{
- return (bg->pattern != NULL) ? TRUE : FALSE;
+ GtkCssImage *image;
+ GtkCssValue *value = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_IMAGE);
+
+ if (_gtk_css_array_value_get_n_values (value) == 0)
+ return FALSE;
+
+ image = _gtk_css_image_value_get_image (_gtk_css_array_value_get_nth (value, 0));
+ return (image != NULL);
}