1
2 /*
3 ****************************************************************************** *
4 *
5 * Copyright (C) 1999-2007, International Business Machines
6 * Corporation and others. All Rights Reserved.
7 *
8 ****************************************************************************** *
9 */
10
11 #include <gnome.h>
12 #include <ft2build.h>
13 #include FT_FREETYPE_H
14
15 #include "pflow.h"
16
17 #include "gnomeglue.h"
18
19 #include "arraymem.h"
20
21 struct Context
22 {
23 long width;
24 long height;
25 pf_flow *paragraph;
26 };
27
28 typedef struct Context Context;
29
30 static FT_Library engine;
31 static gs_guiSupport *guiSupport;
32 static fm_fontMap *fontMap;
33 static le_font *font;
34
35 static GSList *appList = NULL;
36
37 GtkWidget *newSample(const gchar *fileName);
38 void closeSample(GtkWidget *sample);
39
showabout(GtkWidget * widget,gpointer data)40 static void showabout(GtkWidget *widget, gpointer data)
41 {
42 GtkWidget *aboutBox;
43 const gchar *documentedBy[] = {NULL};
44 const gchar *writtenBy[] = {
45 "Eric Mader",
46 NULL
47 };
48
49 aboutBox = gnome_about_new("Gnome Layout Sample",
50 "0.1",
51 "Copyright (C) 1998-2006 By International Business Machines Corporation and others. All Rights Reserved.",
52 "A simple demo of the ICU LayoutEngine.",
53 writtenBy,
54 documentedBy,
55 "",
56 NULL);
57
58 gtk_widget_show(aboutBox);
59 }
60
61 #if 0
62 static void notimpl(GtkObject *object, gpointer data)
63 {
64 gnome_ok_dialog("Not implemented...");
65 }
66 #endif
67
prettyTitle(const gchar * path)68 static gchar *prettyTitle(const gchar *path)
69 {
70 const gchar *name = g_basename(path);
71 gchar *title = g_strconcat("Gnome Layout Sample - ", name, NULL);
72
73 return title;
74 }
75
openOK(GtkObject * object,gpointer data)76 static void openOK(GtkObject *object, gpointer data)
77 {
78 GtkFileSelection *fileselection = GTK_FILE_SELECTION(data);
79 GtkWidget *app = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(fileselection), "app"));
80 Context *context = (Context *) gtk_object_get_data(GTK_OBJECT(app), "context");
81 gchar *fileName = g_strdup(gtk_file_selection_get_filename(fileselection));
82 pf_flow *newPara;
83
84 gtk_widget_destroy(GTK_WIDGET(fileselection));
85
86 newPara = pf_factory(fileName, font, guiSupport);
87
88 if (newPara != NULL) {
89 gchar *title = prettyTitle(fileName);
90 GtkWidget *area = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(app), "area"));
91
92 if (context->paragraph != NULL) {
93 pf_close(context->paragraph);
94 }
95
96 context->paragraph = newPara;
97 gtk_window_set_title(GTK_WINDOW(app), title);
98
99 gtk_widget_hide(area);
100 pf_breakLines(context->paragraph, context->width, context->height);
101 gtk_widget_show_all(area);
102
103 g_free(title);
104 }
105
106 g_free(fileName);
107 }
108
openfile(GtkObject * object,gpointer data)109 static void openfile(GtkObject *object, gpointer data)
110 {
111 GtkWidget *app = GTK_WIDGET(data);
112 GtkWidget *fileselection;
113 GtkWidget *okButton;
114 GtkWidget *cancelButton;
115
116 fileselection =
117 gtk_file_selection_new("Open File");
118
119 gtk_object_set_data(GTK_OBJECT(fileselection), "app", app);
120
121 okButton =
122 GTK_FILE_SELECTION(fileselection)->ok_button;
123
124 cancelButton =
125 GTK_FILE_SELECTION(fileselection)->cancel_button;
126
127 gtk_signal_connect(GTK_OBJECT(fileselection), "destroy",
128 GTK_SIGNAL_FUNC(gtk_main_quit), NULL);
129
130 gtk_signal_connect(GTK_OBJECT(okButton), "clicked",
131 GTK_SIGNAL_FUNC(openOK), fileselection);
132
133 gtk_signal_connect_object(GTK_OBJECT(cancelButton), "clicked",
134 GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(fileselection));
135
136 gtk_window_set_modal(GTK_WINDOW(fileselection), TRUE);
137 gtk_widget_show(fileselection);
138 gtk_main();
139 }
140
newapp(GtkObject * object,gpointer data)141 static void newapp(GtkObject *object, gpointer data)
142 {
143 GtkWidget *app = newSample("Sample.txt");
144
145 gtk_widget_show_all(app);
146 }
147
closeapp(GtkWidget * widget,gpointer data)148 static void closeapp(GtkWidget *widget, gpointer data)
149 {
150 GtkWidget *app = GTK_WIDGET(data);
151
152 closeSample(app);
153 }
154
shutdown(GtkObject * object,gpointer data)155 static void shutdown(GtkObject *object, gpointer data)
156 {
157 gtk_main_quit();
158 }
159
160 GnomeUIInfo fileMenu[] =
161 {
162 GNOMEUIINFO_MENU_NEW_ITEM((gchar *) "_New Sample",
163 (gchar *) "Create a new Gnome Layout Sample",
164 newapp, NULL),
165
166 GNOMEUIINFO_MENU_OPEN_ITEM(openfile, NULL),
167 GNOMEUIINFO_SEPARATOR,
168 GNOMEUIINFO_MENU_CLOSE_ITEM(closeapp, NULL),
169 GNOMEUIINFO_MENU_EXIT_ITEM(shutdown, NULL),
170 GNOMEUIINFO_END
171 };
172
173 GnomeUIInfo helpMenu[] =
174 {
175 /* GNOMEUIINFO_HELP("gnomelayout"), */
176 GNOMEUIINFO_MENU_ABOUT_ITEM(showabout, NULL),
177 GNOMEUIINFO_END
178 };
179
180 GnomeUIInfo mainMenu[] =
181 {
182 GNOMEUIINFO_SUBTREE(N_((gchar *) "File"), fileMenu),
183 GNOMEUIINFO_SUBTREE(N_((gchar *) "Help"), helpMenu),
184 GNOMEUIINFO_END
185 };
186
eventDelete(GtkWidget * widget,GdkEvent * event,gpointer data)187 static gint eventDelete(GtkWidget *widget, GdkEvent *event, gpointer data)
188 {
189 closeSample(widget);
190
191 /* indicate that closeapp already destroyed the window */
192 return TRUE;
193 }
194
eventConfigure(GtkWidget * widget,GdkEventConfigure * event,Context * context)195 static gint eventConfigure(GtkWidget *widget, GdkEventConfigure *event, Context *context)
196 {
197 if (context->paragraph != NULL) {
198 context->width = event->width;
199 context->height = event->height;
200
201 if (context->width > 0 && context->height > 0) {
202 pf_breakLines(context->paragraph, context->width, context->height);
203 }
204 }
205
206 return TRUE;
207 }
208
eventExpose(GtkWidget * widget,GdkEvent * event,Context * context)209 static gint eventExpose(GtkWidget *widget, GdkEvent *event, Context *context)
210 {
211 if (context->paragraph != NULL) {
212 gint maxLines = pf_getLineCount(context->paragraph) - 1;
213 gint firstLine = 0, lastLine = context->height / pf_getLineHeight(context->paragraph);
214 rs_surface *surface = rs_gnomeRenderingSurfaceOpen(widget);
215
216 pf_draw(context->paragraph, surface, firstLine, (maxLines < lastLine)? maxLines : lastLine);
217
218 rs_gnomeRenderingSurfaceClose(surface);
219 }
220
221 return TRUE;
222 }
223
newSample(const gchar * fileName)224 GtkWidget *newSample(const gchar *fileName)
225 {
226 Context *context = NEW_ARRAY(Context, 1);
227 gchar *title;
228 GtkWidget *app;
229 GtkWidget *area;
230 GtkStyle *style;
231 int i;
232
233 context->width = 600;
234 context->height = 400;
235 context->paragraph = pf_factory(fileName, font, guiSupport);
236
237 title = prettyTitle(fileName);
238 app = gnome_app_new("gnomeLayout", title);
239
240 gtk_object_set_data(GTK_OBJECT(app), "context", context);
241
242 gtk_window_set_default_size(GTK_WINDOW(app), 600 - 24, 400);
243
244 gnome_app_create_menus_with_data(GNOME_APP(app), mainMenu, app);
245
246 gtk_signal_connect(GTK_OBJECT(app), "delete_event",
247 GTK_SIGNAL_FUNC(eventDelete), NULL);
248
249 area = gtk_drawing_area_new();
250 gtk_object_set_data(GTK_OBJECT(app), "area", area);
251
252 style = gtk_style_copy(gtk_widget_get_style(area));
253
254 for (i = 0; i < 5; i += 1) {
255 style->fg[i] = style->white;
256 }
257
258 gtk_widget_set_style(area, style);
259
260 gnome_app_set_contents(GNOME_APP(app), area);
261
262 gtk_signal_connect(GTK_OBJECT(area),
263 "expose_event",
264 GTK_SIGNAL_FUNC(eventExpose),
265 context);
266
267 gtk_signal_connect(GTK_OBJECT(area),
268 "configure_event",
269 GTK_SIGNAL_FUNC(eventConfigure),
270 context);
271
272 appList = g_slist_prepend(appList, app);
273
274 g_free(title);
275
276 return app;
277 }
278
closeSample(GtkWidget * app)279 void closeSample(GtkWidget *app)
280 {
281 Context *context = (Context *) gtk_object_get_data(GTK_OBJECT(app), "context");
282
283 if (context->paragraph != NULL) {
284 pf_close(context->paragraph);
285 }
286
287 DELETE_ARRAY(context);
288
289 appList = g_slist_remove(appList, app);
290
291 gtk_widget_destroy(app);
292
293 if (appList == NULL) {
294 gtk_main_quit();
295 }
296 }
297
main(int argc,char * argv[])298 int main (int argc, char *argv[])
299 {
300 LEErrorCode fontStatus = LE_NO_ERROR;
301 poptContext ptctx;
302 GtkWidget *app;
303 const char *defaultArgs[] = {"Sample.txt", NULL};
304 const char **args;
305 int i;
306
307 FT_Init_FreeType(&engine);
308
309 gnome_init_with_popt_table("gnomelayout", "0.1", argc, argv, NULL, 0, &ptctx);
310
311 guiSupport = gs_gnomeGuiSupportOpen();
312 fontMap = fm_gnomeFontMapOpen(engine, "FontMap.Gnome", 24, guiSupport, &fontStatus);
313 font = le_scriptCompositeFontOpen(fontMap);
314
315 if (LE_FAILURE(fontStatus)) {
316 FT_Done_FreeType(engine);
317 return 1;
318 }
319
320 args = poptGetArgs(ptctx);
321
322 if (args == NULL) {
323 args = defaultArgs;
324 }
325
326 for (i = 0; args[i] != NULL; i += 1) {
327 app = newSample(args[i]);
328
329 gtk_widget_show_all(app);
330 }
331
332 poptFreeContext(ptctx);
333
334 gtk_main();
335
336 le_fontClose(font);
337 gs_gnomeGuiSupportClose(guiSupport);
338
339 FT_Done_FreeType(engine);
340
341 exit(0);
342 }
343