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7ff4cba624
For now, this just applies the shadow from the widget's style, there is no way to apply different shadows to text ranges (except for the selection, which already has its own css style).
89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
/* GSK - The GTK Scene Kit
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*
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* Copyright 2017 Red Hat, Inc.
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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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#pragma once
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#include <pango/pango.h>
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#include "gtk/gtksnapshot.h"
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#include "gtk/gtkcssstyleprivate.h"
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G_BEGIN_DECLS
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#define GSK_TYPE_PANGO_RENDERER (gsk_pango_renderer_get_type ())
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#define GSK_PANGO_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GSK_TYPE_PANGO_RENDERER, GskPangoRenderer))
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#define GSK_IS_PANGO_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GSK_TYPE_PANGO_RENDERER))
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#define GSK_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GSK_TYPE_PANGO_RENDERER, GskPangoRendererClass))
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#define GSK_IS_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GSK_TYPE_PANGO_RENDERER))
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#define GSK_PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GSK_TYPE_PANGO_RENDERER, GskPangoRendererClass))
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typedef struct _GskPangoRenderer GskPangoRenderer;
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typedef struct _GskPangoRendererClass GskPangoRendererClass;
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typedef enum
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{
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GSK_PANGO_RENDERER_NORMAL,
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GSK_PANGO_RENDERER_SELECTED,
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GSK_PANGO_RENDERER_CURSOR
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} GskPangoRendererState;
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typedef gboolean (*GskPangoShapeHandler) (PangoAttrShape *attr,
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GdkSnapshot *snapshot,
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double width,
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double height);
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/*
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* This is a PangoRenderer implementation that translates all the draw calls to
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* gsk render nodes, using the GtkSnapshot helper class. Glyphs are translated
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* to text nodes, other draw calls may fall back to cairo nodes.
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*/
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struct _GskPangoRenderer
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{
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PangoRenderer parent_instance;
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GtkWidget *widget;
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GtkSnapshot *snapshot;
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const GdkRGBA *fg_color;
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GtkCssStyle *shadow_style;
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/* Error underline color for this widget */
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GdkRGBA *error_color;
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GskPangoRendererState state;
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guint is_cached_renderer : 1;
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GskPangoShapeHandler shape_handler;
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};
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struct _GskPangoRendererClass
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{
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PangoRendererClass parent_class;
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};
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GType gsk_pango_renderer_get_type (void) G_GNUC_CONST;
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void gsk_pango_renderer_set_state (GskPangoRenderer *crenderer,
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GskPangoRendererState state);
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void gsk_pango_renderer_set_shape_handler (GskPangoRenderer *crenderer,
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GskPangoShapeHandler handler);
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GskPangoRenderer *gsk_pango_renderer_acquire (void);
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void gsk_pango_renderer_release (GskPangoRenderer *crenderer);
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G_END_DECLS
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