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border-image: change Gtk9Slice to GtkBorderImage

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It's a similar private type, which is much more powerful, and respects
the CSS rendering specification for border-image.

https://bugzilla.gnome.org/show_bug.cgi?id=651194
This commit is contained in:
Cosimo Cecchi 2011-05-26 15:53:28 -04:00 committed by Benjamin Otte
parent e45230ad39
commit 9976530fe0
7 changed files with 783 additions and 442 deletions
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4
gtk/Makefile.am
View File

@ -375,7 +375,6 @@ endif
# GTK+ header files that don't get installed
gtk_private_h_sources = \
gtk9slice.h \
gtkaccelgroupprivate.h \
gtkaccessibleprivate.h \
gtkanimationdescription.h \
@ -383,6 +382,7 @@ gtk_private_h_sources = \
gtkappchoosermodule.h \
gtkappchooseronline.h \
gtkbindingsprivate.h \
gtkborderimageprivate.h \
gtkbuilderprivate.h \
gtkbuttonprivate.h \
gtkcellareaboxcontextprivate.h \
@ -457,7 +457,6 @@ gtk_private_h_sources = \
# GTK+ C sources to build the library from
gtk_base_c_sources = \
gtk9slice.c \
gtkquery.c \
gtksearchengine.c \
gtksearchenginesimple.c \
@ -487,6 +486,7 @@ gtk_base_c_sources = \
gtkbin.c \
gtkbindings.c \
gtkborder.c \
gtkborderimage.c \
gtkbox.c \
gtkbuildable.c \
gtkbuilder.c \

375
gtk/gtk9slice.c
View File

@ -1,375 +0,0 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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.
*/
#include "config.h"
#include "gtk9slice.h"
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 Gtk9Slice
{
cairo_surface_t *surfaces[BORDER_LAST][BORDER_LAST];
GtkSliceSideModifier modifiers[4];
gdouble distances[4];
gint ref_count;
};
G_DEFINE_BOXED_TYPE (Gtk9Slice, _gtk_9slice,
_gtk_9slice_ref, _gtk_9slice_unref)
Gtk9Slice *
_gtk_9slice_new (GdkPixbuf *pixbuf,
gdouble distance_top,
gdouble distance_bottom,
gdouble distance_left,
gdouble distance_right,
GtkSliceSideModifier horizontal_modifier,
GtkSliceSideModifier vertical_modifier)
{
Gtk9Slice *slice;
cairo_surface_t *surface;
gint width, height;
cairo_t *cr;
g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
slice = g_slice_new0 (Gtk9Slice);
slice->ref_count = 1;
slice->distances[SIDE_TOP] = distance_top;
slice->distances[SIDE_BOTTOM] = distance_bottom;
slice->distances[SIDE_LEFT] = distance_left;
slice->distances[SIDE_RIGHT] = distance_right;
slice->modifiers[SIDE_TOP] = slice->modifiers[SIDE_BOTTOM] = horizontal_modifier;
slice->modifiers[SIDE_LEFT] = slice->modifiers[SIDE_RIGHT] = vertical_modifier;
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
/* Get an image surface from the pixbuf */
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
cr = cairo_create (surface);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
/* Top /left corner */
slice->surfaces[BORDER_LEFT][BORDER_TOP] = cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
distance_left, distance_top);
cr = cairo_create (slice->surfaces[BORDER_LEFT][BORDER_TOP]);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
/* Top/right corner */
slice->surfaces[BORDER_RIGHT][BORDER_TOP] = cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
distance_right, distance_top);
cr = cairo_create (slice->surfaces[BORDER_RIGHT][BORDER_TOP]);
cairo_set_source_surface (cr, surface, - width + distance_right, 0);
cairo_paint (cr);
cairo_destroy (cr);
/* Bottom/left corner */
slice->surfaces[BORDER_LEFT][BORDER_BOTTOM] = cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
distance_left, distance_bottom);
cr = cairo_create (slice->surfaces[BORDER_LEFT][BORDER_BOTTOM]);
cairo_set_source_surface (cr, surface, 0, - height + distance_bottom);
cairo_paint (cr);
cairo_destroy (cr);
/* Bottom/right corner */
slice->surfaces[BORDER_RIGHT][BORDER_BOTTOM] = cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
distance_right, distance_bottom);
cr = cairo_create (slice->surfaces[BORDER_RIGHT][BORDER_BOTTOM]);
cairo_set_source_surface (cr, surface, - width + distance_right, - height + distance_bottom);
cairo_paint (cr);
cairo_destroy (cr);
/* Top side */
slice->surfaces[BORDER_MIDDLE][BORDER_TOP] = cairo_surface_create_similar (surface,
CAIRO_CONTENT_COLOR_ALPHA,
width - distance_left - distance_right,
distance_top);
cr = cairo_create (slice->surfaces[BORDER_MIDDLE][BORDER_TOP]);
cairo_set_source_surface (cr, surface, - distance_left, 0);
cairo_paint (cr);
cairo_destroy (cr);
/* Bottom side */
slice->surfaces[BORDER_MIDDLE][BORDER_BOTTOM] = cairo_surface_create_similar (surface,
CAIRO_CONTENT_COLOR_ALPHA,
width - distance_left - distance_right,
distance_bottom);
cr = cairo_create (slice->surfaces[BORDER_MIDDLE][BORDER_BOTTOM]);
cairo_set_source_surface (cr, surface, - distance_left, - height + distance_bottom);
cairo_paint (cr);
cairo_destroy (cr);
/* Left side */
slice->surfaces[BORDER_LEFT][BORDER_MIDDLE] = cairo_surface_create_similar (surface,
CAIRO_CONTENT_COLOR_ALPHA,
distance_left,
height - distance_top - distance_bottom);
cr = cairo_create (slice->surfaces[BORDER_LEFT][BORDER_MIDDLE]);
cairo_set_source_surface (cr, surface, 0, - distance_top);
cairo_paint (cr);
cairo_destroy (cr);
/* Right side */
slice->surfaces[BORDER_RIGHT][BORDER_MIDDLE] = cairo_surface_create_similar (surface,
CAIRO_CONTENT_COLOR_ALPHA,
distance_right,
height - distance_top - distance_bottom);
cr = cairo_create (slice->surfaces[BORDER_RIGHT][BORDER_MIDDLE]);
cairo_set_source_surface (cr, surface, - width + distance_right, - distance_top);
cairo_paint (cr);
cairo_destroy (cr);
/* Center */
slice->surfaces[BORDER_MIDDLE][BORDER_MIDDLE] = cairo_surface_create_similar (surface,
CAIRO_CONTENT_COLOR_ALPHA,
width - distance_left - distance_right,
height - distance_top - distance_bottom);
cr = cairo_create (slice->surfaces[BORDER_MIDDLE][BORDER_MIDDLE]);
cairo_set_source_surface (cr, surface, - distance_left, - distance_top);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return slice;
}
static void
render_border (cairo_t *cr,
cairo_surface_t *surface,
guint side,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkSliceSideModifier modifier)
{
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
cairo_save (cr);
cairo_rectangle (cr, x, y, width, height);
cairo_clip (cr);
pattern = cairo_pattern_create_for_surface (surface);
if (modifier == GTK_SLICE_REPEAT)
{
cairo_matrix_init_translate (&matrix, - x, - y);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_rectangle (cr, x, y, width, height);
cairo_fill (cr);
}
else
{
/* Use nearest filter so borders aren't blurred */
cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST);
if (side == SIDE_TOP || side == SIDE_BOTTOM)
{
gint w = cairo_image_surface_get_width (surface);
cairo_translate (cr, x, y);
cairo_scale (cr, width / w, 1.0);
}
else
{
gint h = cairo_image_surface_get_height (surface);
cairo_translate (cr, x, y);
cairo_scale (cr, 1.0, height / h);
}
cairo_set_source (cr, pattern);
cairo_rectangle (cr, x, y, width, height);
cairo_paint (cr);
}
cairo_restore (cr);
cairo_pattern_destroy (pattern);
}
static void
render_corner (cairo_t *cr,
cairo_surface_t *surface,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
cairo_save (cr);
cairo_rectangle (cr, x, y, width, height);
cairo_clip (cr);
cairo_set_source_surface (cr, surface, x, y);
cairo_rectangle (cr, x, y, width, height);
cairo_fill (cr);
cairo_restore (cr);
}
void
_gtk_9slice_render (Gtk9Slice *slice,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
int img_width, img_height;
cairo_surface_t *surface;
cairo_save (cr);
/* Top side */
surface = slice->surfaces[BORDER_MIDDLE][BORDER_TOP];
img_height = cairo_image_surface_get_height (surface);
render_border (cr, surface, SIDE_TOP,
x + slice->distances[SIDE_LEFT], y,
width - slice->distances[SIDE_LEFT] - slice->distances[SIDE_RIGHT],
(gdouble) img_height,
slice->modifiers[SIDE_TOP]);
/* Bottom side */
surface = slice->surfaces[BORDER_MIDDLE][BORDER_BOTTOM];
img_height = cairo_image_surface_get_height (surface);
render_border (cr, surface, SIDE_BOTTOM,
x + slice->distances[SIDE_LEFT], y + height - img_height,
width - slice->distances[SIDE_LEFT] - slice->distances[SIDE_RIGHT],
(gdouble) img_height,
slice->modifiers[SIDE_BOTTOM]);
/* Left side */
surface = slice->surfaces[BORDER_LEFT][BORDER_MIDDLE];
img_width = cairo_image_surface_get_width (surface);
render_border (cr, surface, SIDE_LEFT,
x, y + slice->distances[SIDE_TOP],
(gdouble) img_width,
height - slice->distances[SIDE_TOP] - slice->distances[SIDE_BOTTOM],
slice->modifiers[SIDE_LEFT]);
/* Right side */
surface = slice->surfaces[BORDER_RIGHT][BORDER_MIDDLE];
img_width = cairo_image_surface_get_width (surface);
render_border (cr, surface, SIDE_RIGHT,
x + width - img_width, y + slice->distances[SIDE_TOP],
(gdouble) img_width,
height - slice->distances[SIDE_TOP] - slice->distances[SIDE_BOTTOM],
slice->modifiers[SIDE_RIGHT]);
/* Top/Left corner */
surface = slice->surfaces[BORDER_LEFT][BORDER_TOP];
img_width = cairo_image_surface_get_width (surface);
img_height = cairo_image_surface_get_height (surface);
render_corner (cr, surface, x, y, (gdouble) img_width, (gdouble) img_height);
/* Top/right corner */
surface = slice->surfaces[BORDER_RIGHT][BORDER_TOP];
img_width = cairo_image_surface_get_width (surface);
img_height = cairo_image_surface_get_height (surface);
render_corner (cr, surface, x + width - img_width, y,
(gdouble) img_width, (gdouble) img_height);
/* Bottom/left corner */
surface = slice->surfaces[BORDER_LEFT][BORDER_BOTTOM];
img_width = cairo_image_surface_get_width (surface);
img_height = cairo_image_surface_get_height (surface);
render_corner (cr, surface, x, y + height - img_height,
(gdouble) img_width, (gdouble) img_height);
/* Bottom/right corner */
surface = slice->surfaces[BORDER_RIGHT][BORDER_BOTTOM];
img_width = cairo_image_surface_get_width (surface);
img_height = cairo_image_surface_get_height (surface);
render_corner (cr, surface, x + width - img_width, y + height - img_height,
(gdouble) img_width, (gdouble) img_height);
cairo_restore (cr);
}
Gtk9Slice *
_gtk_9slice_ref (Gtk9Slice *slice)
{
g_return_val_if_fail (slice != NULL, NULL);
slice->ref_count++;
return slice;
}
void
_gtk_9slice_unref (Gtk9Slice *slice)
{
g_return_if_fail (slice != NULL);
slice->ref_count--;
if (slice->ref_count == 0)
{
gint i, j;
for (i = 0; i < BORDER_LAST; i++)
for (j = 0; j < BORDER_LAST; j++)
cairo_surface_destroy (slice->surfaces[i][j]);
g_slice_free (Gtk9Slice, slice);
}
}

59
gtk/gtk9slice.h
View File

@ -1,59 +0,0 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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.
*/
#ifndef __GTK_9SLICE_H__
#define __GTK_9SLICE_H__
#include "gtktimeline.h"
G_BEGIN_DECLS
/* Dummy typedefs */
typedef struct Gtk9Slice Gtk9Slice;
#define GTK_TYPE_9SLICE (_gtk_9slice_get_type ())
typedef enum {
GTK_SLICE_REPEAT,
GTK_SLICE_STRETCH
} GtkSliceSideModifier;
GType _gtk_9slice_get_type (void) G_GNUC_CONST;
Gtk9Slice * _gtk_9slice_new (GdkPixbuf *pixbuf,
gdouble distance_top,
gdouble distance_bottom,
gdouble distance_left,
gdouble distance_right,
GtkSliceSideModifier horizontal_modifier,
GtkSliceSideModifier vertical_modifier);
Gtk9Slice * _gtk_9slice_ref (Gtk9Slice *slice);
void _gtk_9slice_unref (Gtk9Slice *slice);
void _gtk_9slice_render (Gtk9Slice *slice,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
G_END_DECLS
#endif /* __GTK_9SLICE_H__ */

685
gtk/gtkborderimage.c Normal file
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@ -0,0 +1,685 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
* Copyright (C) 2011 Red Hat, Inc.
*
* Authors: Carlos Garnacho <carlosg@gnome.org>
* Cosimo Cecchi <cosimoc@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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.
*/
#include <config.h>
#include <cairo-gobject.h>
#include <math.h>
#include "gtkborderimageprivate.h"
static GtkBorderImageRepeat *
_gtk_border_image_repeat_copy (const GtkBorderImageRepeat *repeat)
{
GtkBorderImageRepeat *retval;
retval = g_slice_new0 (GtkBorderImageRepeat);
*retval = *repeat;
return retval;
}
static void
_gtk_border_image_repeat_free (GtkBorderImageRepeat *repeat)
{
g_slice_free (GtkBorderImageRepeat, repeat);
}
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];
};
static void
_gtk_border_image_ensure_slices (GtkBorderImage *image,
gdouble width,
gdouble height)
{
cairo_surface_t *surface;
cairo_t *cr;
if (image->surfaces[0][0] != NULL)
return;
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);
}
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);
}
if ((image->slice.top + image->slice.bottom) < height)
{
/* 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);
}
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;
}
gboolean
_gtk_border_image_get_resolved (GtkBorderImage *image)
{
return image->resolved;
}
GtkBorderImage *
_gtk_border_image_resolve (GtkBorderImage *image,
GtkStyleProperties *props)
{
GtkBorderImage *resolved_image;
cairo_pattern_t *pattern;
if (image->resolved)
return _gtk_border_image_ref (image);
if (!gtk_gradient_resolve (image->source_gradient, props, &pattern))
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);
image->ref_count--;
if (image->ref_count == 0)
{
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);
}
}
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 (&parameter[0].value, CAIRO_GOBJECT_TYPE_PATTERN);
g_value_set_boxed (&parameter[0].value, image->source);
parameter[1].name = "border-image-slice";
g_value_init (&parameter[1].value, GTK_TYPE_BORDER);
g_value_set_boxed (&parameter[1].value, &image->slice);
parameter[2].name = "border-image-repeat";
g_value_init (&parameter[2].value, GTK_TYPE_BORDER_IMAGE_REPEAT);
g_value_set_boxed (&parameter[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
{
image = _gtk_border_image_new (source, slice, repeat);
g_value_take_boxed (value, image);
cairo_pattern_destroy (source);
}
if (slice != NULL)
gtk_border_free (slice);
if (repeat != NULL)
_gtk_border_image_repeat_free (repeat);
}
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_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)
{
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++;
}
cairo_destroy (cr);
return retval;
}
static void
render_border (cairo_t *cr,
cairo_surface_t *surface,
gdouble total_width,
gdouble total_height,
guint side,
GtkBorder *border_area,
GtkBorderImageRepeat *repeat)
{
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);
}
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;
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);
}
void
_gtk_border_image_render (GtkBorderImage *image,
GtkBorder *border_width,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
cairo_surface_t *surface;
_gtk_border_image_ensure_slices (image, width, height);
cairo_save (cr);
cairo_translate (cr, x, y);
/* 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);
cairo_restore (cr);
}

80
gtk/gtkborderimageprivate.h Normal file
View File

@ -0,0 +1,80 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
* Copyright (C) 2011 Red Hat, Inc.
*
* Authors: Carlos Garnacho <carlosg@gnome.org>
* Cosimo Cecchi <cosimoc@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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.
*/
#ifndef __GTK_BORDER_IMAGE_H__
#define __GTK_BORDER_IMAGE_H__
#include <gtk/gtkborder.h>
#include <gtk/gtkenums.h>
#include <gtk/gtkgradient.h>
#include <gtk/gtkstyleproperties.h>
#include <gtk/gtkthemingengine.h>
G_BEGIN_DECLS
#define GTK_TYPE_BORDER_IMAGE_REPEAT (_gtk_border_image_repeat_get_type ())
GType _gtk_border_image_repeat_get_type (void) G_GNUC_CONST;
typedef struct {
GtkRepeatStyle vrepeat;
GtkRepeatStyle hrepeat;
} GtkBorderImageRepeat;
typedef struct _GtkBorderImage GtkBorderImage;
#define GTK_TYPE_BORDER_IMAGE (_gtk_border_image_get_type ())
GType _gtk_border_image_get_type (void) G_GNUC_CONST;
GtkBorderImage * _gtk_border_image_new (cairo_pattern_t *source,
GtkBorder *slice,
GtkBorderImageRepeat *repeat);
GtkBorderImage * _gtk_border_image_new_for_gradient (GtkGradient *gradient,
GtkBorder *slice,
GtkBorderImageRepeat *repeat);
GtkBorderImage * _gtk_border_image_resolve (GtkBorderImage *image,
GtkStyleProperties *props);
gboolean _gtk_border_image_get_resolved (GtkBorderImage *image);
GtkBorderImage * _gtk_border_image_ref (GtkBorderImage *image);
void _gtk_border_image_unref (GtkBorderImage *image);
void _gtk_border_image_render (GtkBorderImage *image,
GtkBorder *border_width,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
GParameter * _gtk_border_image_unpack (const GValue *value,
guint *n_params);
void _gtk_border_image_pack (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state);
G_END_DECLS
#endif /* __GTK_BORDER_IMAGE_H__ */

7
gtk/gtkenums.h
View File

@ -916,6 +916,13 @@ typedef enum {
GTK_BORDER_STYLE_OUTSET
} GtkBorderStyle;
typedef enum {
GTK_REPEAT_STYLE_NONE,
GTK_REPEAT_STYLE_REPEAT,
GTK_REPEAT_STYLE_ROUND,
GTK_REPEAT_STYLE_SPACE
} GtkRepeatStyle;
G_END_DECLS

15
gtk/gtkthemingengine.c
View File

@ -27,7 +27,7 @@
#include <gtk/gtkintl.h>
#include "gtkprivate.h"
#include "gtk9slice.h"
#include "gtkborderimageprivate.h"
#include "gtkpango.h"
#include "gtkshadowprivate.h"
#include "gtkcsstypesprivate.h"
@ -2148,22 +2148,25 @@ gtk_theming_engine_render_frame (GtkThemingEngine *engine,
gdouble height)
{
GtkStateFlags flags;
Gtk9Slice *slice;
GtkBorderStyle border_style;
GtkJunctionSides junction;
GtkBorderImage *border_image;
GtkBorder border;
flags = gtk_theming_engine_get_state (engine);
junction = gtk_theming_engine_get_junction_sides (engine);
gtk_theming_engine_get_border (engine, flags, &border);
gtk_theming_engine_get (engine, flags,
"border-image", &slice,
"border-image", &border_image,
"border-style", &border_style,
NULL);
if (slice)
if (border_image != NULL)
{
_gtk_9slice_render (slice, cr, x, y, width, height);
_gtk_9slice_unref (slice);
_gtk_border_image_render (border_image, &border,
cr, x, y, width, height);
_gtk_border_image_unref (border_image);
}
else if (border_style != GTK_BORDER_STYLE_NONE)
render_frame_internal (engine, cr,