forked from AuroraMiddleware/gtk
146 lines
5.0 KiB
C
146 lines
5.0 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2014,2015 Benjamin Otte
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkrendericonprivate.h"
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#include "gtkcssimagevalueprivate.h"
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#include "gtkcssshadowsvalueprivate.h"
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#include "gtkcssstyleprivate.h"
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#include "gtkcsstransformvalueprivate.h"
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void
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gtk_css_style_render_icon (GtkCssStyle *style,
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cairo_t *cr,
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double x,
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double y,
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double width,
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double height,
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GtkCssImageBuiltinType builtin_type)
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{
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const GtkCssValue *shadows;
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cairo_matrix_t matrix, transform_matrix;
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GtkCssImage *image;
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g_return_if_fail (GTK_IS_CSS_STYLE (style));
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g_return_if_fail (cr != NULL);
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image = _gtk_css_image_value_get_image (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SOURCE));
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if (image == NULL)
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return;
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shadows = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
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cairo_translate (cr, x, y);
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if (_gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &transform_matrix))
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{
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/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
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cairo_matrix_init_translate (&matrix, width / 2, height / 2);
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cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
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cairo_matrix_translate (&matrix, - width / 2, - height / 2);
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if (_gtk_css_shadows_value_is_none (shadows))
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{
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cairo_transform (cr, &matrix);
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gtk_css_image_builtin_draw (image, cr, width, height, builtin_type);
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}
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else
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{
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cairo_push_group (cr);
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cairo_transform (cr, &matrix);
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gtk_css_image_builtin_draw (image, cr, width, height, builtin_type);
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cairo_pop_group_to_source (cr);
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_gtk_css_shadows_value_paint_icon (shadows, cr);
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cairo_paint (cr);
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}
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}
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}
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gboolean
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get_surface_extents (cairo_surface_t *surface,
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GdkRectangle *out_extents)
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{
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cairo_t *cr;
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gboolean result;
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cr = cairo_create (surface);
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result = gdk_cairo_get_clip_rectangle (cr, out_extents);
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cairo_destroy (cr);
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return result;
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}
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void
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gtk_css_style_render_icon_surface (GtkCssStyle *style,
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cairo_t *cr,
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cairo_surface_t *surface,
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double x,
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double y)
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{
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const GtkCssValue *shadows;
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cairo_matrix_t matrix, transform_matrix, saved_matrix;
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GdkRectangle extents;
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g_return_if_fail (GTK_IS_CSS_STYLE (style));
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g_return_if_fail (cr != NULL);
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g_return_if_fail (surface != NULL);
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shadows = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
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if (!get_surface_extents (surface, &extents))
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{
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/* weird infinite surface, no special magic for you */
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cairo_set_source_surface (cr, surface, x, y);
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_gtk_css_shadows_value_paint_icon (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW), cr);
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cairo_paint (cr);
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return;
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}
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cairo_get_matrix (cr, &saved_matrix);
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cairo_translate (cr, x + extents.x, y + extents.y);
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if (_gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &transform_matrix))
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{
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cairo_pattern_t *pattern;
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/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
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cairo_matrix_init_translate (&matrix, extents.width / 2, extents.height / 2);
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cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
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cairo_matrix_translate (&matrix, - extents.width / 2, - extents.height / 2);
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if (cairo_matrix_invert (&matrix) != CAIRO_STATUS_SUCCESS)
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{
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g_assert_not_reached ();
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}
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cairo_matrix_translate (&matrix, extents.x, extents.y);
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pattern = cairo_pattern_create_for_surface (surface);
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cairo_pattern_set_matrix (pattern, &matrix);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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_gtk_css_shadows_value_paint_icon (shadows, cr);
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cairo_paint (cr);
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}
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cairo_set_matrix (cr, &saved_matrix);
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}
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