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htmlpainter.h @ 21116

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Revision 21116, 14.7 KB checked in by ghudson, 20 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r21115, which included commits to RCS files with non-trunk default branches.

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1	/* -- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -- */
2	/* This file is part of the GtkHTML library.
3
4	Copyright (C) 1997 Martin Jones (mjones@kde.org)
5	Copyright (C) 1997 Torben Weis (weis@kde.org)
6	Copyright (C) 1999, 2000 Helix Code, Inc.
7
8	This library is free software; you can redistribute it and/or
9	modify it under the terms of the GNU Library General Public
10	License as published by the Free Software Foundation; either
11	version 2 of the License, or (at your option) any later version.
12
13	This library is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16	Library General Public License for more details.
17
18	You should have received a copy of the GNU Library General Public License
19	along with this library; see the file COPYING.LIB. If not, write to
20	the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21	Boston, MA 02111-1307, USA.
22	*/
23
24	#ifndef _HTMLPAINTER_H_
25	#define _HTMLPAINTER_H_
26
27	#include <gdk-pixbuf/gdk-pixbuf.h>
28	#include <gdk/gdktypes.h>
29	#include <glib-object.h>
30	#include <gtk/gtkwidget.h>
31
32	#include "gtkhtml-enums.h"
33	#include "htmltypes.h"
34	#include "htmlfontmanager.h"
35
36
37	#define HTML_TYPE_PAINTER (html_painter_get_type ())
38	#define HTML_PAINTER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), HTML_TYPE_PAINTER, HTMLPainter))
39	#define HTML_PAINTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), HTML_TYPE_PAINTER, HTMLPainterClass))
40	#define HTML_IS_PAINTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), HTML_TYPE_PAINTER))
41	#define HTML_IS_PAINTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), HTML_TYPE_PAINTER))
42
43
44	struct _HTMLPainter {
45	GObject base;
46
47	GtkWidget *widget;
48	HTMLFontManager font_manager;
49	HTMLFontFace *font_face;
50	GtkHTMLFontStyle font_style;
51
52	gboolean focus;
53	};
54
55	struct _HTMLPainterClass {
56	GObjectClass base;
57
58	void (* set_widget) (HTMLPainter painter, GtkWidget widget);
59	void (* begin) (HTMLPainter *painter, int x1, int y1, int x2, int y2);
60	void (* end) (HTMLPainter *painter);
61
62	HTMLFont * (* alloc_font) (HTMLPainter p, gchar face_name, gdouble size, gboolean points, GtkHTMLFontStyle style);
63	void (* ref_font) (HTMLPainter p, HTMLFont font);
64	void (* unref_font) (HTMLPainter p, HTMLFont font);
65
66	void (* alloc_color) (HTMLPainter painter, GdkColor color);
67	void (* free_color) (HTMLPainter painter, GdkColor color);
68
69	void (* calc_text_size) (HTMLPainter p, const gchar text, guint len, HTMLTextPangoInfo pi, PangoAttrList attrs, GList *glyphs, gint start_byte_offset,
70	GtkHTMLFontStyle font_style, HTMLFontFace face, gint width, gint asc, gint dsc);
71	void (* calc_text_size_bytes) (HTMLPainter p, const gchar text, guint len, HTMLTextPangoInfo pi, PangoAttrList attrs, GList *glyphs, gint start_byte_offset,
72	HTMLFont font, GtkHTMLFontStyle font_style, gint width, gint asc, gint dsc);
73
74	void (* set_pen) (HTMLPainter painter, const GdkColor color);
75	const GdkColor * (* get_black) (const HTMLPainter *painter);
76	void (* draw_line) (HTMLPainter *painter, gint x1, gint y1, gint x2, gint y2);
77	void (* draw_rect) (HTMLPainter *painter, gint x, gint y, gint width, gint height);
78	gint (* draw_text) (HTMLPainter painter, gint x, gint y, const gchar text, gint len, HTMLTextPangoInfo pi, PangoAttrList attrs, GList *glyphs, gint start_byte_offset);
79	gint (* draw_spell_error) (HTMLPainter painter, gint x, gint y, const gchar text, gint len, HTMLTextPangoInfo pi, GList glyphs, gint start_byte_offset);
80	void (* fill_rect) (HTMLPainter *painter, gint x, gint y, gint width, gint height);
81	void (* draw_pixmap) (HTMLPainter painter, GdkPixbuf pixbuf,
82	gint x, gint y,
83	gint scale_width,
84	gint scale_height,
85	const GdkColor *color);
86	void (* draw_ellipse) (HTMLPainter *painter, gint x, gint y, gint width, gint height);
87	void (* clear) (HTMLPainter *painter);
88	void (* set_background_color) (HTMLPainter painter, const GdkColor color);
89	void (* draw_shade_line) (HTMLPainter *p, gint x, gint y, gint width);
90	void (* draw_panel) (HTMLPainter painter, GdkColor bg,
91	gint x, gint y, gint width, gint height,
92	GtkHTMLEtchStyle inset, gint bordersize);
93
94	void (* set_clip_rectangle) (HTMLPainter *painter, gint x, gint y, gint width, gint height);
95	void (* draw_background) (HTMLPainter painter, GdkColor color, GdkPixbuf *pixbuf,
96	gint x, gint y, gint width, gint height, gint tile_x, gint tile_y);
97	guint (* get_pixel_size) (HTMLPainter *painter);
98	void (* draw_embedded) (HTMLPainter painter, HTMLEmbedded element, gint x, gint y);
99
100	guint (get_page_width) (HTMLPainter painter, HTMLEngine *e);
101	guint (get_page_height) (HTMLPainter painter, HTMLEngine *e);
102	};
103
104
105	/* Creation. */
106	GType html_painter_get_type (void);
107
108	void html_painter_set_widget (HTMLPainter *painter,
109	GtkWidget *widget);
110
111	/* Functions to drive the painting process. */
112	void html_painter_begin (HTMLPainter *painter,
113	int x1,
114	int y1,
115	int x2,
116	int y2);
117	void html_painter_end (HTMLPainter *painter);
118
119	/* Color control. */
120	void html_painter_alloc_color (HTMLPainter *painter,
121	GdkColor *color);
122	void html_painter_free_color (HTMLPainter *painter,
123	GdkColor *color);
124
125	/* Color set handling. */
126	const GdkColor html_painter_get_default_background_color (HTMLPainter painter);
127	const GdkColor html_painter_get_default_foreground_color (HTMLPainter painter);
128	const GdkColor html_painter_get_default_link_color (HTMLPainter painter);
129	const GdkColor html_painter_get_default_highlight_color (HTMLPainter painter);
130	const GdkColor html_painter_get_default_highlight_foreground_color (HTMLPainter painter);
131	const GdkColor html_painter_get_black (const HTMLPainter painter);
132
133	/* Font handling. */
134	HTMLFontFace html_painter_find_font_face (HTMLPainter p,
135	const gchar *families);
136	void html_painter_set_font_style (HTMLPainter *p,
137	GtkHTMLFontStyle f);
138	GtkHTMLFontStyle html_painter_get_font_style (HTMLPainter *p);
139	void html_painter_set_font_face (HTMLPainter *p,
140	HTMLFontFace *f);
141	gpointer html_painter_get_font (HTMLPainter *painter,
142	HTMLFontFace *face,
143	GtkHTMLFontStyle style);
144	void html_painter_calc_text_size (HTMLPainter *p,
145	const gchar *text,
146	guint len,
147	HTMLTextPangoInfo *pi,
148	PangoAttrList *attrs,
149	GList *glyphs,
150	gint start_byte_offset,
151	gint *line_offset,
152	GtkHTMLFontStyle font_style,
153	HTMLFontFace *face,
154	gint *width,
155	gint *asc,
156	gint *dsc);
157	void html_painter_calc_text_size_bytes (HTMLPainter *p,
158	const gchar *text,
159	guint len,
160	HTMLTextPangoInfo *pi,
161	PangoAttrList *attrs,
162	GList *glyphs,
163	gint start_byte_offset,
164	gint *line_offset,
165	HTMLFont *font,
166	GtkHTMLFontStyle font_style,
167	gint *width,
168	gint *asc,
169	gint *dsc);
170
171	/* The actual paint operations. */
172	void html_painter_set_pen (HTMLPainter *painter,
173	const GdkColor *color);
174	void html_painter_draw_line (HTMLPainter *painter,
175	gint x1,
176	gint y1,
177	gint x2,
178	gint y2);
179	void html_painter_draw_rect (HTMLPainter *painter,
180	gint x,
181	gint y,
182	gint width,
183	gint height);
184	gint html_painter_draw_text (HTMLPainter *painter,
185	gint x,
186	gint y,
187	const gchar *text,
188	gint len,
189	HTMLTextPangoInfo *pi,
190	PangoAttrList *attrs,
191	GList *glyphs,
192	gint start_byte_offset,
193	gint line_offset);
194	void html_painter_fill_rect (HTMLPainter *painter,
195	gint x,
196	gint y,
197	gint width,
198	gint height);
199	void html_painter_draw_pixmap (HTMLPainter *painter,
200	GdkPixbuf *pixbuf,
201	gint x,
202	gint y,
203	gint scale_width,
204	gint scale_height,
205	const GdkColor *color);
206	void html_painter_draw_ellipse (HTMLPainter *painter,
207	gint x,
208	gint y,
209	gint width,
210	gint height);
211	void html_painter_clear (HTMLPainter *painter);
212	void html_painter_set_background_color (HTMLPainter *painter,
213	const GdkColor *color);
214	void html_painter_draw_shade_line (HTMLPainter *p,
215	gint x,
216	gint y,
217	gint width);
218	void html_painter_draw_panel (HTMLPainter *painter,
219	GdkColor *bg,
220	gint x,
221	gint y,
222	gint width,
223	gint height,
224	GtkHTMLEtchStyle inset,
225	gint bordersize);
226
227	/* Passing 0 for width/height means remove clip rectangle */
228	void html_painter_set_clip_rectangle (HTMLPainter *painter,
229	gint x,
230	gint y,
231	gint width,
232	gint height);
233
234	/* Passing 0 for pix_width / pix_height makes it use the image width */
235	void html_painter_draw_background (HTMLPainter *painter,
236	GdkColor *color,
237	GdkPixbuf *pixbuf,
238	gint x,
239	gint y,
240	gint width,
241	gint height,
242	gint tile_x,
243	gint tile_y);
244	guint html_painter_get_pixel_size (HTMLPainter *painter);
245	gint html_painter_draw_spell_error (HTMLPainter *painter,
246	gint x,
247	gint y,
248	const gchar *text,
249	gint len,
250	HTMLTextPangoInfo *pi,
251	GList *glyphs,
252	gint start_byte_offset);
253	HTMLFont html_painter_alloc_font (HTMLPainter painter,
254	gchar *face_name,
255	gdouble size,
256	gboolean points,
257	GtkHTMLFontStyle style);
258	void html_painter_ref_font (HTMLPainter *painter,
259	HTMLFont *font);
260	void html_painter_unref_font (HTMLPainter *painter,
261	HTMLFont *font);
262	guint html_painter_get_space_width (HTMLPainter *painter,
263	GtkHTMLFontStyle font_style,
264	HTMLFontFace *face);
265	guint html_painter_get_space_asc (HTMLPainter *painter,
266	GtkHTMLFontStyle font_style,
267	HTMLFontFace *face);
268	guint html_painter_get_space_dsc (HTMLPainter *painter,
269	GtkHTMLFontStyle font_style,
270	HTMLFontFace *face);
271	guint html_painter_get_e_width (HTMLPainter *painter,
272	GtkHTMLFontStyle font_style,
273	HTMLFontFace *face);
274	guint html_painter_get_block_indent_width (HTMLPainter *painter,
275	GtkHTMLFontStyle font_style,
276	HTMLFontFace *face);
277	guint html_painter_get_block_cite_width (HTMLPainter *painter,
278	GtkHTMLFontStyle font_style,
279	HTMLFontFace *face);
280	void html_painter_draw_embedded (HTMLPainter *painter,
281	HTMLEmbedded *element,
282	gint x,
283	gint y);
284	guint html_painter_get_page_width (HTMLPainter *painter,
285	HTMLEngine *e);
286	guint html_painter_get_page_height (HTMLPainter *painter,
287	HTMLEngine *e);
288	void html_painter_set_focus (HTMLPainter *painter,
289	gboolean focus);
290	void html_replace_tabs (const gchar *text,
291	gchar *translated,
292	guint bytes);
293
294	HTMLTextPangoInfo html_painter_text_itemize_and_prepare_glyphs (HTMLPainter painter,
295	PangoFontDescription *desc,
296	const gchar *text,
297	gint bytes,
298	GList **glyphs,
299	PangoAttrList *attrs);
300	void html_painter_glyphs_destroy (GList *glyphs);
301
302	#define HTML_BLOCK_INDENT " "
303	#define HTML_BLOCK_CITE "> "
304	#define HTML_ALLOCA_MAX 2048
305
306	#endif /* _HTMLPAINTER_H_ */

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source: trunk/third/gtkhtml3/src/htmlpainter.h @ 21116

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