forked from AuroraMiddleware/gtk
3d737ee8ba
Sat Nov 20 15:13:51 2004 Owen Taylor <otaylor@redhat.com> * gdk/gdkpango.[ch]: Add GdkPangoRenderer, a subclass of PangoRenderer targeting GDK drawables. Use to implement the old gdk_draw_layout() and friends. * gdk/gdkdraw.c gdk/gdkdrawable.h gdk/gdkwindow.c gdk/gdkpixmap.c: Add gdk_draw_glyphs_transformed() gdk_draw_trapezoids() and the corresponding members of GdkDrawableClass. Add a fallback implementation of gdk_draw_trapezoids() in terms of pixbufs. * gdk/gdkwindowing.h gdk/x11/gdkg-x11.h: Add _gdk_windowing_gc_get_foreground() to enable the fallback trapezoid implementation. * gdk/x11/gdkdrawable-x11.c gdk/x11/gdkdisplay-x11.h: Implement draw_glyph_transformed, draw_trapezoids. * gdk/x11/gdkdrawable-x11.[ch]: Add _gdk_x11_drawable_draw_xtrapezoids, _gdk_x11_drawable_draw_xft_glyphs for use of GdkX11Renderer. * gdk/x11/gdkgc-x11.c gdk/x11/gdkprivate-x11.h: Implement GDK_TILED, GDK_STIPPLED, GDK_OPAQUE_STIPPLED in the RENDER codepath. * gdk/gdkpango-x11.c: Add GdkX11Renderer... a subclass of PangoXftRenderer that does tiles/stipples and fallback rendering of trapezoids without the RENDER extension. * gdk/gdkpango-x11.c gdk/x11/gdkscreen-x11.[ch] _gdk_x11_renderer_get: Add _gdk_x11_renderer_get() to get a singleton GdkX11Renderer for the screen. * gdk/x11/gdkdrawable-x11.c (get_impl_drawable): Fix a None/NULL confusion. * gtk/gtklabel.[ch] gtk/gtk.symbols: Add gtk_label_set/get_angle(), and an ::angle property. * gtk/gtklabel.c: Remove #if 0'd dead code gtk_label_paint_word(). * gtk/gtktextdisplay.c: Switch to using a GtkTextRenderer subclass of GdkPangoRenderer for drawing. * gtk/gtktextlayout.[ch] gtk/gtktextdisplay.c: Switch to using gtk_attr_shape_new_with_data() to store backreferences to embedded pixmaps and widgets. Leave line_display->shaped_objects around for backwords compatibility. * gdk/gdkpango.[ch] (gdk_pango_context_set_colormap): Describe as deprecated, remove implementation. * gtk/gtkwidget.c (gtk_widget_create_pango_context): Remove call to gdk_pango_context_set_colormap. * demos/gtk-demo/Makefile.am demos/gtk-demo/rotated_text.c: Add a demo showing drawing rotated text. * tests/testgtk.c: Add a rotated-label test, and also a rotated drawing test (differs from demos/gtk-demo/rotated_text by also using a tile)
159 lines
5.8 KiB
C
159 lines
5.8 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2000 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GDK_PANGO_H__
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#define __GDK_PANGO_H__
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#include <gdk/gdktypes.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Pango interaction */
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typedef struct _GdkPangoRenderer GdkPangoRenderer;
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typedef struct _GdkPangoRendererClass GdkPangoRendererClass;
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typedef struct _GdkPangoRendererPrivate GdkPangoRendererPrivate;
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#define GDK_TYPE_PANGO_RENDERER (gdk_pango_renderer_get_type())
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#define GDK_PANGO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PANGO_RENDERER, GdkPangoRenderer))
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#define GDK_IS_PANGO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PANGO_RENDERER))
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#define GDK_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PANGO_RENDERER, GdkPangoRendererClass))
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#define GDK_IS_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PANGO_RENDERER))
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#define GDK_PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PANGO_RENDERER, GdkPangoRendererClass))
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/**
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* GdkPangoRenderer:
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*
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* #GdkPangoRenderer is a subclass of #PangoRenderer used for rendering
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* Pango objects into GDK drawables. The default renderer for a particular
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* screen is obtained with gdk_pango_renderer_get_default(); Pango
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* functions like pango_renderer_draw_layout() and
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* pango_renderer_draw_layout_line() are then used to draw objects with
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* the renderer.
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*
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* In most simple cases, applications can just use gdk_draw_layout(), and
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* don't need to directly use #GdkPangoRenderer at all. Using the
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* #GdkPangoRenderer directly is most useful when working with a
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* transformation such as a rotation, because the Pango drawing functions
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* take user space coordinates (coordinates before the transformation)
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* instead of device coordinates.
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*
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* In certain cases it can be useful to subclass #GdkPangoRenderer. Examples
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* of reasons to do this are to add handling of custom attributes by
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* overriding 'prepare_run' or to do custom drawing of embedded objects
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* by overriding 'draw_shape'.
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*
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* Since: 2.6
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**/
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struct _GdkPangoRenderer
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{
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/*< private >*/
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PangoRenderer parent_instance;
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GdkPangoRendererPrivate *priv;
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};
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/**
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* GdkPangoRendererClass:
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*
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* #GdkPangoRenderer is the class structure for #GdkPangoRenderer.
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*
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* Since: 2.6
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**/
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struct _GdkPangoRendererClass
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{
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/*< private >*/
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PangoRendererClass parent_class;
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};
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GType gdk_pango_renderer_get_type (void) G_GNUC_CONST;
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PangoRenderer *gdk_pango_renderer_new (GdkScreen *screen);
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PangoRenderer *gdk_pango_renderer_get_default (GdkScreen *screen);
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void gdk_pango_renderer_set_drawable (GdkPangoRenderer *gdk_renderer,
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GdkDrawable *drawable);
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void gdk_pango_renderer_set_gc (GdkPangoRenderer *gdk_renderer,
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GdkGC *gc);
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void gdk_pango_renderer_set_stipple (GdkPangoRenderer *gdk_renderer,
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PangoRenderPart part,
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GdkBitmap *stipple);
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void gdk_pango_renderer_set_override_color (GdkPangoRenderer *gdk_renderer,
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PangoRenderPart part,
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const GdkColor *color);
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/************************************************************************/
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PangoContext *gdk_pango_context_get_for_screen (GdkScreen *screen);
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#ifndef GDK_MULTIHEAD_SAFE
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PangoContext *gdk_pango_context_get (void);
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#endif
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#ifndef GDK_DISABLE_DEPRECATED
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void gdk_pango_context_set_colormap (PangoContext *context,
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GdkColormap *colormap);
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#endif
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/* Get a clip region to draw only part of a layout or
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* line. index_ranges contains alternating range starts/stops. The
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* region is the region which contains the given ranges, i.e. if you
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* draw with the region as clip, only the given ranges are drawn.
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*/
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GdkRegion *gdk_pango_layout_line_get_clip_region (PangoLayoutLine *line,
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gint x_origin,
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gint y_origin,
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gint *index_ranges,
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gint n_ranges);
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GdkRegion *gdk_pango_layout_get_clip_region (PangoLayout *layout,
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gint x_origin,
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gint y_origin,
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gint *index_ranges,
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gint n_ranges);
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/* Attributes use to render insensitive text in GTK+. */
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typedef struct _GdkPangoAttrStipple GdkPangoAttrStipple;
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typedef struct _GdkPangoAttrEmbossed GdkPangoAttrEmbossed;
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struct _GdkPangoAttrStipple
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{
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PangoAttribute attr;
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GdkBitmap *stipple;
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};
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struct _GdkPangoAttrEmbossed
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{
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PangoAttribute attr;
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gboolean embossed;
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};
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PangoAttribute *gdk_pango_attr_stipple_new (GdkBitmap *stipple);
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PangoAttribute *gdk_pango_attr_embossed_new (gboolean embossed);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GDK_FONT_H__ */
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