* 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 <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <math.h>
#include "gtkborderimageprivate.h"
+#include "gtkcssbordervalueprivate.h"
+#include "gtkcssimagevalueprivate.h"
+#include "gtkcssnumbervalueprivate.h"
+#include "gtkcssrepeatvalueprivate.h"
+#include "gtkstylepropertiesprivate.h"
+#include "gtkthemingengineprivate.h"
+
+/* 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 GtkBorderImageRepeat *
-_gtk_border_image_repeat_copy (const GtkBorderImageRepeat *repeat)
+gboolean
+_gtk_border_image_init (GtkBorderImage *image,
+ GtkThemingEngine *engine)
{
- GtkBorderImageRepeat *retval;
-
- retval = g_slice_new0 (GtkBorderImageRepeat);
- *retval = *repeat;
+ image->source = _gtk_css_image_value_get_image (_gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_BORDER_IMAGE_SOURCE));
+ if (image->source == NULL)
+ return FALSE;
- return retval;
-}
+ image->slice = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_BORDER_IMAGE_SLICE);
+ image->width = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_BORDER_IMAGE_WIDTH);
+ image->repeat = _gtk_theming_engine_peek_property (engine, GTK_CSS_PROPERTY_BORDER_IMAGE_REPEAT);
-static void
-_gtk_border_image_repeat_free (GtkBorderImageRepeat *repeat)
-{
- g_slice_free (GtkBorderImageRepeat, repeat);
+ return TRUE;
}
-G_DEFINE_BOXED_TYPE (GtkBorderImageRepeat, _gtk_border_image_repeat,
- _gtk_border_image_repeat_copy, _gtk_border_image_repeat_free)
-
-G_DEFINE_BOXED_TYPE (GtkBorderImage, _gtk_border_image,
- _gtk_border_image_ref, _gtk_border_image_unref)
-
-enum {
- BORDER_LEFT,
- BORDER_MIDDLE,
- BORDER_RIGHT,
- BORDER_LAST,
- BORDER_TOP = BORDER_LEFT,
- BORDER_BOTTOM = BORDER_RIGHT
-};
-
-enum {
- SIDE_TOP,
- SIDE_RIGHT,
- SIDE_BOTTOM,
- SIDE_LEFT
-};
-
-struct _GtkBorderImage {
- cairo_pattern_t *source;
- GtkGradient *source_gradient;
-
- GtkBorder slice;
- GtkBorderImageRepeat repeat;
-
- gint ref_count;
- gboolean resolved;
-
- cairo_surface_t *surfaces[BORDER_LAST][BORDER_LAST];
+typedef struct _GtkBorderImageSliceSize GtkBorderImageSliceSize;
+struct _GtkBorderImageSliceSize {
+ double offset;
+ double size;
};
static void
-_gtk_border_image_ensure_slices (GtkBorderImage *image,
- gdouble width,
- gdouble height)
+gtk_border_image_compute_border_size (GtkBorderImageSliceSize sizes[3],
+ double offset,
+ double area_size,
+ double start_border_width,
+ double end_border_width,
+ const GtkCssValue *start_border,
+ const GtkCssValue *end_border)
{
- cairo_surface_t *surface;
- cairo_t *cr;
-
- if (image->surfaces[0][0] != NULL)
- return;
+ double start, end;
- if (cairo_pattern_get_type (image->source) != CAIRO_PATTERN_TYPE_SURFACE)
- {
- cairo_matrix_t matrix;
-
- cairo_matrix_init_scale (&matrix, 1 / width, 1 / height);
- cairo_pattern_set_matrix (image->source, &matrix);
-
- surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
- cr = cairo_create (surface);
- cairo_set_source (cr, image->source);
- cairo_paint (cr);
-
- cairo_destroy (cr);
- }
+ if (_gtk_css_number_value_get_unit (start_border) == GTK_CSS_NUMBER)
+ start = start_border_width * _gtk_css_number_value_get (start_border, 100);
else
- {
- cairo_pattern_get_surface (image->source, &surface);
- cairo_surface_reference (surface);
-
- width = cairo_image_surface_get_width (surface);
- height = cairo_image_surface_get_height (surface);
- }
-
- /* Top /left corner */
- image->surfaces[BORDER_LEFT][BORDER_TOP] =
- cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
- image->slice.left, image->slice.top);
- cr = cairo_create (image->surfaces[BORDER_LEFT][BORDER_TOP]);
- cairo_set_source_surface (cr, surface, 0, 0);
- cairo_paint (cr);
-
- cairo_destroy (cr);
-
- /* Top/right corner */
- image->surfaces[BORDER_RIGHT][BORDER_TOP] =
- cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
- image->slice.right, image->slice.top);
- cr = cairo_create (image->surfaces[BORDER_RIGHT][BORDER_TOP]);
- cairo_set_source_surface (cr, surface,
- - width + image->slice.right,
- 0);
- cairo_paint (cr);
- cairo_destroy (cr);
-
- /* Bottom/left corner */
- image->surfaces[BORDER_LEFT][BORDER_BOTTOM] =
- cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
- image->slice.left, image->slice.bottom);
- cr = cairo_create (image->surfaces[BORDER_LEFT][BORDER_BOTTOM]);
- cairo_set_source_surface (cr, surface,
- 0,
- - height + image->slice.bottom);
- cairo_paint (cr);
- cairo_destroy (cr);
-
- /* Bottom/right corner */
- image->surfaces[BORDER_RIGHT][BORDER_BOTTOM] =
- cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
- image->slice.right, image->slice.bottom);
- cr = cairo_create (image->surfaces[BORDER_RIGHT][BORDER_BOTTOM]);
- cairo_set_source_surface (cr, surface,
- - width + image->slice.right,
- - height + image->slice.bottom);
- cairo_paint (cr);
- cairo_destroy (cr);
-
- if ((image->slice.left + image->slice.right) < width)
- {
- /* Top side */
- image->surfaces[BORDER_MIDDLE][BORDER_TOP] =
- cairo_surface_create_similar (surface,
- CAIRO_CONTENT_COLOR_ALPHA,
- width - image->slice.left - image->slice.right,
- image->slice.top);
- cr = cairo_create (image->surfaces[BORDER_MIDDLE][BORDER_TOP]);
- cairo_set_source_surface (cr, surface,
- - image->slice.left,
- 0);
- cairo_paint (cr);
- cairo_destroy (cr);
-
- /* Bottom side */
- image->surfaces[BORDER_MIDDLE][BORDER_BOTTOM] =
- cairo_surface_create_similar (surface,
- CAIRO_CONTENT_COLOR_ALPHA,
- width - image->slice.left - image->slice.right,
- image->slice.bottom);
- cr = cairo_create (image->surfaces[BORDER_MIDDLE][BORDER_BOTTOM]);
- cairo_set_source_surface (cr, surface,
- - image->slice.left,
- - height + image->slice.bottom);
- cairo_paint (cr);
- cairo_destroy (cr);
- }
+ start = _gtk_css_number_value_get (start_border, area_size);
+ if (_gtk_css_number_value_get_unit (end_border) == GTK_CSS_NUMBER)
+ end = end_border_width * _gtk_css_number_value_get (end_border, 100);
+ else
+ end = _gtk_css_number_value_get (end_border, area_size);
- if ((image->slice.top + image->slice.bottom) < height)
+ /* XXX: reduce vertical and horizontal by the same factor */
+ if (start + end > area_size)
{
- /* Left side */
- image->surfaces[BORDER_LEFT][BORDER_MIDDLE] =
- cairo_surface_create_similar (surface,
- CAIRO_CONTENT_COLOR_ALPHA,
- image->slice.left,
- height - image->slice.top - image->slice.bottom);
- cr = cairo_create (image->surfaces[BORDER_LEFT][BORDER_MIDDLE]);
- cairo_set_source_surface (cr, surface,
- 0,
- - image->slice.top);
- cairo_paint (cr);
- cairo_destroy (cr);
-
- /* Right side */
- image->surfaces[BORDER_RIGHT][BORDER_MIDDLE] =
- cairo_surface_create_similar (surface,
- CAIRO_CONTENT_COLOR_ALPHA,
- image->slice.right,
- height - image->slice.top - image->slice.bottom);
- cr = cairo_create (image->surfaces[BORDER_RIGHT][BORDER_MIDDLE]);
- cairo_set_source_surface (cr, surface,
- - width + image->slice.right,
- - image->slice.top);
- cairo_paint (cr);
- cairo_destroy (cr);
+ start = start * area_size / (start + end);
+ end = end * area_size / (start + end);
}
- cairo_surface_destroy (surface);
-}
-
-GtkBorderImage *
-_gtk_border_image_new (cairo_pattern_t *pattern,
- GtkBorder *slice,
- GtkBorderImageRepeat *repeat)
-{
- GtkBorderImage *image;
-
- image = g_slice_new0 (GtkBorderImage);
- image->ref_count = 1;
-
- if (pattern != NULL)
- image->source = cairo_pattern_reference (pattern);
-
- if (slice != NULL)
- image->slice = *slice;
-
- if (repeat != NULL)
- image->repeat = *repeat;
-
- image->resolved = TRUE;
-
- return image;
-}
-
-GtkBorderImage *
-_gtk_border_image_new_for_gradient (GtkGradient *gradient,
- GtkBorder *slice,
- GtkBorderImageRepeat *repeat)
-{
- GtkBorderImage *image;
-
- image = g_slice_new0 (GtkBorderImage);
- image->ref_count = 1;
-
- if (gradient != NULL)
- image->source_gradient = gtk_gradient_ref (gradient);
-
- if (slice != NULL)
- image->slice = *slice;
-
- if (repeat != NULL)
- image->repeat = *repeat;
-
- image->resolved = FALSE;
-
- return image;
+ sizes[0].offset = offset;
+ sizes[0].size = start;
+ sizes[1].offset = offset + start;
+ sizes[1].size = area_size - start - end;
+ sizes[2].offset = offset + area_size - end;
+ sizes[2].size = end;
}
-gboolean
-_gtk_border_image_get_resolved (GtkBorderImage *image)
-{
- return image->resolved;
-}
-
-GtkBorderImage *
-_gtk_border_image_resolve (GtkBorderImage *image,
- GtkStyleProperties *props)
+static void
+gtk_border_image_render_slice (cairo_t *cr,
+ cairo_surface_t *slice,
+ double slice_width,
+ double slice_height,
+ double x,
+ double y,
+ double width,
+ double height,
+ GtkCssRepeatStyle hrepeat,
+ GtkCssRepeatStyle vrepeat)
{
- GtkBorderImage *resolved_image;
+ double hscale, vscale;
+ double xstep, ystep;
+ cairo_extend_t extend = CAIRO_EXTEND_PAD;
+ cairo_matrix_t matrix;
cairo_pattern_t *pattern;
- if (image->resolved)
- return _gtk_border_image_ref (image);
-
- image->resolved =
- gtk_gradient_resolve (image->source_gradient, props, &pattern);
-
- if (!image->resolved)
- return NULL;
-
- resolved_image = _gtk_border_image_new (pattern, &image->slice, &image->repeat);
-
- return resolved_image;
-}
-
-GtkBorderImage *
-_gtk_border_image_ref (GtkBorderImage *image)
-{
- g_return_val_if_fail (image != NULL, NULL);
-
- image->ref_count++;
-
- return image;
-}
-
-void
-_gtk_border_image_unref (GtkBorderImage *image)
-{
- g_return_if_fail (image != NULL);
+ /* We can't draw center tiles yet */
+ g_assert (hrepeat == GTK_CSS_REPEAT_STYLE_STRETCH || vrepeat == GTK_CSS_REPEAT_STYLE_STRETCH);
- image->ref_count--;
+ hscale = width / slice_width;
+ vscale = height / slice_height;
+ xstep = width;
+ ystep = height;
- if (image->ref_count == 0)
+ switch (hrepeat)
{
- if (image->source != NULL)
- cairo_pattern_destroy (image->source);
-
- if (image->source_gradient != NULL)
- gtk_gradient_unref (image->source_gradient);
-
- g_slice_free (GtkBorderImage, image);
+ case GTK_CSS_REPEAT_STYLE_REPEAT:
+ extend = CAIRO_EXTEND_REPEAT;
+ hscale = vscale;
+ break;
+ case GTK_CSS_REPEAT_STYLE_SPACE:
+ {
+ double space, n;
+
+ extend = CAIRO_EXTEND_NONE;
+ hscale = vscale;
+
+ xstep = hscale * slice_width;
+ n = floor (width / xstep);
+ space = (width - n * xstep) / (n + 1);
+ xstep += space;
+ x += space;
+ width -= 2 * space;
+ }
+ break;
+ case GTK_CSS_REPEAT_STYLE_STRETCH:
+ break;
+ case GTK_CSS_REPEAT_STYLE_ROUND:
+ extend = CAIRO_EXTEND_REPEAT;
+ hscale = width / (slice_width * MAX (round (width / (slice_width * vscale)), 1));
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
}
-}
-GParameter *
-_gtk_border_image_unpack (const GValue *value,
- guint *n_params)
-{
- GParameter *parameter = g_new0 (GParameter, 3);
- GtkBorderImage *image = g_value_get_boxed (value);
-
- parameter[0].name = "border-image-source";
- g_value_init (¶meter[0].value, CAIRO_GOBJECT_TYPE_PATTERN);
- g_value_set_boxed (¶meter[0].value, image->source);
-
- parameter[1].name = "border-image-slice";
- g_value_init (¶meter[1].value, GTK_TYPE_BORDER);
- g_value_set_boxed (¶meter[1].value, &image->slice);
-
- parameter[2].name = "border-image-repeat";
- g_value_init (¶meter[2].value, GTK_TYPE_BORDER_IMAGE_REPEAT);
- g_value_set_boxed (¶meter[2].value, &image->repeat);
-
- *n_params = 3;
- return parameter;
-}
-
-void
-_gtk_border_image_pack (GValue *value,
- GtkStyleProperties *props,
- GtkStateFlags state)
-{
- GtkBorderImage *image;
- cairo_pattern_t *source;
- GtkBorder *slice;
- GtkBorderImageRepeat *repeat;
-
- gtk_style_properties_get (props, state,
- "border-image-source", &source,
- "border-image-slice", &slice,
- "border-image-repeat", &repeat,
- NULL);
-
- if (source == NULL)
- {
- g_value_take_boxed (value, NULL);
- }
- else
+ switch (vrepeat)
{
- image = _gtk_border_image_new (source, slice, repeat);
- g_value_take_boxed (value, image);
-
- cairo_pattern_destroy (source);
+ case GTK_CSS_REPEAT_STYLE_REPEAT:
+ extend = CAIRO_EXTEND_REPEAT;
+ vscale = hscale;
+ break;
+ case GTK_CSS_REPEAT_STYLE_SPACE:
+ {
+ double space, n;
+
+ extend = CAIRO_EXTEND_NONE;
+ vscale = hscale;
+
+ ystep = vscale * slice_height;
+ n = floor (height / ystep);
+ space = (height - n * ystep) / (n + 1);
+ ystep += space;
+ y += space;
+ height -= 2 * space;
+ }
+ break;
+ case GTK_CSS_REPEAT_STYLE_STRETCH:
+ break;
+ case GTK_CSS_REPEAT_STYLE_ROUND:
+ extend = CAIRO_EXTEND_REPEAT;
+ vscale = height / (slice_height * MAX (round (height / (slice_height * hscale)), 1));
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
}
- if (slice != NULL)
- gtk_border_free (slice);
+ pattern = cairo_pattern_create_for_surface (slice);
- if (repeat != NULL)
- _gtk_border_image_repeat_free (repeat);
-}
+ cairo_matrix_init_translate (&matrix,
+ hrepeat == GTK_CSS_REPEAT_STYLE_REPEAT ? slice_width / 2 : 0,
+ vrepeat == GTK_CSS_REPEAT_STYLE_REPEAT ? slice_height / 2 : 0);
+ cairo_matrix_scale (&matrix, 1 / hscale, 1 / vscale);
+ cairo_matrix_translate (&matrix,
+ hrepeat == GTK_CSS_REPEAT_STYLE_REPEAT ? - width / 2 : 0,
+ vrepeat == GTK_CSS_REPEAT_STYLE_REPEAT ? - height / 2 : 0);
-static void
-render_corner (cairo_t *cr,
- cairo_surface_t *surface,
- gdouble x,
- gdouble y,
- gdouble width,
- gdouble height)
-{
- gint image_width, image_height;
-
- if (width == 0 || height == 0)
- return;
+ cairo_pattern_set_matrix (pattern, &matrix);
+ cairo_pattern_set_extend (pattern, extend);
cairo_save (cr);
-
- image_width = cairo_image_surface_get_width (surface);
- image_height = cairo_image_surface_get_height (surface);
-
cairo_translate (cr, x, y);
- cairo_scale (cr,
- width / image_width,
- height / image_height);
- cairo_set_source_surface (cr, surface, 0, 0);
- /* use the nearest filter for scaling, to avoid color blending */
- cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
-
- cairo_paint (cr);
-
- cairo_restore (cr);
-}
-
-static cairo_surface_t *
-create_spaced_surface (cairo_surface_t *tile,
- gdouble width,
- gdouble height,
- GtkOrientation orientation)
-{
- gint n_repeats, idx;
- gint tile_width, tile_height;
- gdouble avail_space, step;
- cairo_surface_t *retval;
- cairo_t *cr;
-
- tile_width = cairo_image_surface_get_width (tile);
- tile_height = cairo_image_surface_get_height (tile);
-
- n_repeats = (orientation == GTK_ORIENTATION_HORIZONTAL) ?
- (gint) floor (width / tile_width) :
- (gint) floor (height / tile_height);
-
- avail_space = (orientation == GTK_ORIENTATION_HORIZONTAL) ?
- width - (n_repeats * tile_width) :
- height - (n_repeats * tile_height);
- step = avail_space / (n_repeats + 2);
-
- retval = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
- width, height);
- cr = cairo_create (retval);
- idx = 0;
-
- while (idx < n_repeats)
+ for (y = 0; y < height; y += ystep)
{
- cairo_save (cr);
-
- if (orientation == GTK_ORIENTATION_HORIZONTAL)
- cairo_set_source_surface (cr, tile,
- ((idx + 1) * step) + (idx * tile_width), 0);
- else
- cairo_set_source_surface (cr, tile,
- 0, ((idx + 1 ) * step) + (idx * tile_height));
-
- cairo_paint (cr);
- cairo_restore (cr);
-
- idx++;
+ for (x = 0; x < width; x += xstep)
+ {
+ cairo_save (cr);
+ cairo_translate (cr, x, y);
+ cairo_set_source (cr, pattern);
+ cairo_rectangle (cr, 0, 0, xstep, ystep);
+ cairo_fill (cr);
+ cairo_restore (cr);
+ }
}
- cairo_destroy (cr);
+ cairo_restore (cr);
- return retval;
+ cairo_pattern_destroy (pattern);
}
static void
-render_border (cairo_t *cr,
- cairo_surface_t *surface,
- gdouble total_width,
- gdouble total_height,
- guint side,
- GtkBorder *border_area,
- GtkBorderImageRepeat *repeat)
+gtk_border_image_compute_slice_size (GtkBorderImageSliceSize sizes[3],
+ int surface_size,
+ int start_size,
+ int end_size)
{
- gdouble target_x, target_y;
- gdouble target_width, target_height;
- gint original_width, original_height;
- GdkRectangle image_area;
- cairo_pattern_t *pattern;
- gboolean repeat_pattern;
-
- if (surface == NULL)
- return;
-
- cairo_surface_reference (surface);
- repeat_pattern = FALSE;
-
- original_width = cairo_image_surface_get_width (surface);
- original_height = cairo_image_surface_get_height (surface);
-
- if (side == SIDE_TOP || side == SIDE_BOTTOM)
- {
- target_height = (side == SIDE_TOP) ? (border_area->top) : (border_area->bottom);
- target_width = original_width * (target_height / original_height);
- }
- else
- {
- target_width = (side == SIDE_LEFT) ? (border_area->left) : (border_area->right);
- target_height = original_height * (target_width / original_width);
- }
+ sizes[0].size = MIN (start_size, surface_size);
+ sizes[0].offset = 0;
- if (side == SIDE_TOP || side == SIDE_BOTTOM)
- {
- image_area.x = border_area->left;
- image_area.y = (side == SIDE_TOP) ? 0 : (total_height - border_area->bottom);
- image_area.width = total_width - border_area->left - border_area->right;
- image_area.height = (side == SIDE_TOP) ? border_area->top : border_area->bottom;
-
- target_x = border_area->left;
- target_y = (side == SIDE_TOP) ? 0 : (total_height - border_area->bottom);
-
- if (repeat->vrepeat == GTK_REPEAT_STYLE_NONE)
- {
- target_width = image_area.width;
- }
- else if (repeat->vrepeat == GTK_REPEAT_STYLE_REPEAT)
- {
- repeat_pattern = TRUE;
+ sizes[2].size = MIN (end_size, surface_size);
+ sizes[2].offset = surface_size - sizes[2].size;
- target_x = border_area->left + (total_width - border_area->left - border_area->right) / 2;
- target_y = ((side == SIDE_TOP) ? 0 : (total_height - border_area->bottom)) / 2;
- }
- else if (repeat->vrepeat == GTK_REPEAT_STYLE_ROUND)
- {
- gint n_repeats;
-
- repeat_pattern = TRUE;
-
- n_repeats = (gint) floor (image_area.width / original_width);
- target_width = image_area.width / n_repeats;
- }
- else if (repeat->vrepeat == GTK_REPEAT_STYLE_SPACE)
- {
- cairo_surface_t *spaced_surface;
-
- spaced_surface = create_spaced_surface (surface,
- image_area.width, original_height,
- GTK_ORIENTATION_HORIZONTAL);
- cairo_surface_destroy (surface);
- surface = spaced_surface;
-
- /* short-circuit hscaling */
- target_width = original_width = cairo_image_surface_get_width (surface);
- }
- }
- else
- {
- image_area.x = (side == SIDE_LEFT) ? 0 : (total_width - border_area->right);
- image_area.y = border_area->top;
- image_area.width = (side == SIDE_LEFT) ? border_area->left : border_area->right;
- image_area.height = total_height - border_area->top - border_area->bottom;
-
- target_x = (side == SIDE_LEFT) ? 0 : (total_width - border_area->right);
- target_y = border_area->top;
-
- if (repeat->hrepeat == GTK_REPEAT_STYLE_NONE)
- {
- target_height = total_height - border_area->top - border_area->bottom;
- }
- else if (repeat->hrepeat == GTK_REPEAT_STYLE_REPEAT)
- {
- repeat_pattern = TRUE;
-
- target_height = total_height - border_area->top - border_area->bottom;
- target_x = (side == SIDE_LEFT) ? 0 : (total_width - border_area->right) / 2;
- target_y = border_area->top + (total_height - border_area->top - border_area->bottom) / 2;
- }
- else if (repeat->hrepeat == GTK_REPEAT_STYLE_ROUND)
- {
- gint n_repeats;
-
- repeat_pattern = TRUE;
-
- n_repeats = (gint) floor (image_area.height / original_height);
- target_height = image_area.height / n_repeats;
- }
- else if (repeat->hrepeat == GTK_REPEAT_STYLE_SPACE)
- {
- cairo_surface_t *spaced_surface;
-
- spaced_surface = create_spaced_surface (surface,
- original_width, image_area.height,
- GTK_ORIENTATION_VERTICAL);
- cairo_surface_destroy (surface);
- surface = spaced_surface;
-
- /* short-circuit vscaling */
- target_height = original_height = cairo_image_surface_get_height (surface);
- }
- }
-
- if (target_width == 0 || target_height == 0)
- return;
-
- cairo_save (cr);
-
- pattern = cairo_pattern_create_for_surface (surface);
-
- gdk_cairo_rectangle (cr, &image_area);
- cairo_clip (cr);
-
- cairo_translate (cr,
- target_x, target_y);
-
- /* use the nearest filter for scaling, to avoid color blending */
- cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST);
-
- if (repeat_pattern)
- cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
-
- cairo_scale (cr,
- target_width / original_width,
- target_height / original_height);
-
- cairo_set_source (cr, pattern);
- cairo_paint (cr);
-
- cairo_restore (cr);
-
- cairo_pattern_destroy (pattern);
+ sizes[1].size = MAX (0, surface_size - sizes[0].size - sizes[2].size);
+ sizes[1].offset = sizes[0].size;
}
void
_gtk_border_image_render (GtkBorderImage *image,
- GtkBorder *border_width,
+ const double border_width[4],
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
- cairo_surface_t *surface;
+ cairo_surface_t *surface, *slice;
+ GtkBorderImageSliceSize vertical_slice[3], horizontal_slice[3];
+ GtkBorderImageSliceSize vertical_border[3], horizontal_border[3];
+ double source_width, source_height;
+ int h, v;
+
+ _gtk_css_image_get_concrete_size (image->source,
+ 0, 0,
+ width, height,
+ &source_width, &source_height);
+
+ /* XXX: Optimize for (source_width == width && source_height == height) */
+
+ surface = _gtk_css_image_get_surface (image->source,
+ cairo_get_target (cr),
+ source_width, source_height);
+
+ gtk_border_image_compute_slice_size (horizontal_slice,
+ source_width,
+ _gtk_css_number_value_get (_gtk_css_border_value_get_left (image->slice), source_width),
+ _gtk_css_number_value_get (_gtk_css_border_value_get_right (image->slice), source_width));
+ gtk_border_image_compute_slice_size (vertical_slice,
+ source_height,
+ _gtk_css_number_value_get (_gtk_css_border_value_get_top (image->slice), source_height),
+ _gtk_css_number_value_get (_gtk_css_border_value_get_bottom (image->slice), source_height));
+ gtk_border_image_compute_border_size (horizontal_border,
+ x,
+ width,
+ border_width[GTK_CSS_LEFT],
+ border_width[GTK_CSS_RIGHT],
+ _gtk_css_border_value_get_left (image->width),
+ _gtk_css_border_value_get_right (image->width));
+ gtk_border_image_compute_border_size (vertical_border,
+ y,
+ height,
+ border_width[GTK_CSS_TOP],
+ border_width[GTK_CSS_BOTTOM],
+ _gtk_css_border_value_get_top (image->width),
+ _gtk_css_border_value_get_bottom(image->width));
- _gtk_border_image_ensure_slices (image, width, height);
-
- cairo_save (cr);
- cairo_translate (cr, x, y);
+ for (v = 0; v < 3; v++)
+ {
+ if (vertical_slice[v].size == 0 ||
+ vertical_border[v].size == 0)
+ continue;
- /* Top side */
- surface = image->surfaces[BORDER_MIDDLE][BORDER_TOP];
- render_border (cr, surface,
- width, height, SIDE_TOP,
- border_width, &image->repeat);
-
- /* Bottom side */
- surface = image->surfaces[BORDER_MIDDLE][BORDER_BOTTOM];
- render_border (cr, surface,
- width, height, SIDE_BOTTOM,
- border_width, &image->repeat);
-
- /* Left side */
- surface = image->surfaces[BORDER_LEFT][BORDER_MIDDLE];
- render_border (cr, surface,
- width, height, SIDE_LEFT,
- border_width, &image->repeat);
-
- /* Right side */
- surface = image->surfaces[BORDER_RIGHT][BORDER_MIDDLE];
- render_border (cr, surface,
- width, height, SIDE_RIGHT,
- border_width, &image->repeat);
-
- /* Top/Left corner */
- surface = image->surfaces[BORDER_LEFT][BORDER_TOP];
- render_corner (cr, surface,
- 0, 0,
- border_width->left, border_width->top);
-
- /* Top/right corner */
- surface = image->surfaces[BORDER_RIGHT][BORDER_TOP];
- render_corner (cr, surface,
- width - border_width->right, 0,
- border_width->right, border_width->top);
-
- /* Bottom/left corner */
- surface = image->surfaces[BORDER_LEFT][BORDER_BOTTOM];
- render_corner (cr, surface,
- 0, height - border_width->bottom,
- border_width->left, border_width->bottom);
-
- /* Bottom/right corner */
- surface = image->surfaces[BORDER_RIGHT][BORDER_BOTTOM];
- render_corner (cr, surface,
- width - border_width->right, height - border_width->bottom,
- border_width->right, border_width->bottom);
+ for (h = 0; h < 3; h++)
+ {
+ if (horizontal_slice[h].size == 0 ||
+ horizontal_border[h].size == 0)
+ continue;
+
+ if (h == 1 && v == 1)
+ continue;
+
+ slice = cairo_surface_create_for_rectangle (surface,
+ horizontal_slice[h].offset,
+ vertical_slice[v].offset,
+ horizontal_slice[h].size,
+ vertical_slice[v].size);
+
+ gtk_border_image_render_slice (cr,
+ slice,
+ horizontal_slice[h].size,
+ vertical_slice[v].size,
+ horizontal_border[h].offset,
+ vertical_border[v].offset,
+ horizontal_border[h].size,
+ vertical_border[v].size,
+ h == 1 ? _gtk_css_border_repeat_value_get_x (image->repeat) : GTK_CSS_REPEAT_STYLE_STRETCH,
+ v == 1 ? _gtk_css_border_repeat_value_get_y (image->repeat) : GTK_CSS_REPEAT_STYLE_STRETCH);
+
+ cairo_surface_destroy (slice);
+ }
+ }
- cairo_restore (cr);
+ cairo_surface_destroy (surface);
}