1 #define __SP_FONT_SELECTOR_C__
3 /*
4 * Font selection widgets
5 *
6 * Authors:
7 * Chris Lahey <clahey@ximian.com>
8 * Lauris Kaplinski <lauris@kaplinski.com>
9 * bulia byak <buliabyak@users.sf.net>
10 * Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
11 *
12 * Copyright (C) 1999-2001 Ximian, Inc.
13 * Copyright (C) 2002 Lauris Kaplinski
14 * Copyright (C) -2007 Authors
15 *
16 * Released under GNU GPL, read the file 'COPYING' for more information
17 */
19 #ifdef HAVE_CONFIG_H
20 # include "config.h"
21 #endif
23 #include <libnr/nr-blit.h>
24 #include <libnr/nr-convert2geom.h>
25 #include <libnrtype/font-instance.h>
26 #include <libnrtype/raster-glyph.h>
27 #include <libnrtype/RasterFont.h>
28 #include <libnrtype/TextWrapper.h>
29 #include <libnrtype/one-glyph.h>
30 #include <libnrtype/font-lister.h>
32 #include <2geom/transforms.h>
34 #include <gtk/gtk.h>
35 #include <gtk/gtkframe.h>
36 #include <gtk/gtkscrolledwindow.h>
37 #include <gtk/gtkclist.h>
38 #include <gtk/gtkvbox.h>
39 #include <gtk/gtkcombo.h>
40 #include <gtk/gtkentry.h>
41 #include <gtk/gtkdrawingarea.h>
43 #include "../display/nr-plain-stuff-gdk.h"
44 #include <glibmm/i18n.h>
46 #include "../desktop.h"
47 #include "font-selector.h"
49 /* SPFontSelector */
51 struct SPFontSelector
52 {
53 GtkHBox hbox;
55 unsigned int block_emit : 1;
57 GtkWidget *family;
58 GtkWidget *style;
59 GtkWidget *size;
61 GtkWidget *family_treeview;
62 GtkWidget *style_treeview;
64 NRNameList families;
65 NRStyleList styles;
66 int familyidx;
67 int styleidx;
68 gfloat fontsize;
69 bool fontsize_dirty;
70 font_instance *font;
71 };
74 struct SPFontSelectorClass
75 {
76 GtkHBoxClass parent_class;
78 void (* font_set) (SPFontSelector *fsel, font_instance *font);
79 };
81 enum {
82 FONT_SET,
83 LAST_SIGNAL
84 };
86 static void sp_font_selector_class_init (SPFontSelectorClass *c);
87 static void sp_font_selector_init (SPFontSelector *fsel);
88 static void sp_font_selector_destroy (GtkObject *object);
90 static void sp_font_selector_family_select_row (GtkTreeSelection *selection,
91 SPFontSelector *fsel);
93 static void sp_font_selector_style_select_row (GtkTreeSelection *selection,
94 SPFontSelector *fsel);
96 static void sp_font_selector_size_changed (GtkComboBox *combobox,
97 SPFontSelector *fsel);
99 static void sp_font_selector_emit_set (SPFontSelector *fsel);
101 namespace {
102 const char *sizes[] = {
103 "4", "6", "8", "9", "10", "11", "12", "13", "14",
104 "16", "18", "20", "22", "24", "28",
105 "32", "36", "40", "48", "56", "64", "72", "144",
106 NULL
107 };
108 }
110 static GtkHBoxClass *fs_parent_class = NULL;
111 static guint fs_signals[LAST_SIGNAL] = { 0 };
113 GType sp_font_selector_get_type()
114 {
115 static GType type = 0;
116 if (!type) {
117 GTypeInfo info = {
118 sizeof(SPFontSelectorClass),
119 0, // base_init
120 0, // base_finalize
121 (GClassInitFunc)sp_font_selector_class_init,
122 0, // class_finalize
123 0, // class_data
124 sizeof(SPFontSelector),
125 0, // n_preallocs
126 (GInstanceInitFunc)sp_font_selector_init,
127 0 // value_table
128 };
129 type = g_type_register_static(GTK_TYPE_HBOX, "SPFontSelector", &info, static_cast<GTypeFlags>(0));
130 }
131 return type;
132 }
134 static void sp_font_selector_class_init(SPFontSelectorClass *c)
135 {
136 GtkObjectClass *object_class = (GtkObjectClass *) c;
138 fs_parent_class = (GtkHBoxClass* )gtk_type_class(GTK_TYPE_HBOX);
140 fs_signals[FONT_SET] = gtk_signal_new ("font_set",
141 GTK_RUN_FIRST,
142 GTK_CLASS_TYPE(object_class),
143 GTK_SIGNAL_OFFSET(SPFontSelectorClass, font_set),
144 gtk_marshal_NONE__POINTER,
145 GTK_TYPE_NONE,
146 1, GTK_TYPE_POINTER);
148 object_class->destroy = sp_font_selector_destroy;
149 }
151 static void sp_font_selector_init(SPFontSelector *fsel)
152 {
153 gtk_box_set_homogeneous(GTK_BOX(fsel), TRUE);
154 gtk_box_set_spacing(GTK_BOX(fsel), 4);
156 /* Family frame */
157 GtkWidget *f = gtk_frame_new(_("Font family"));
158 gtk_widget_show (f);
159 gtk_box_pack_start (GTK_BOX(fsel), f, TRUE, TRUE, 0);
161 GtkWidget *sw = gtk_scrolled_window_new(NULL, NULL);
162 gtk_widget_show(sw);
163 gtk_container_set_border_width(GTK_CONTAINER (sw), 4);
164 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
165 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_IN);
166 gtk_container_add(GTK_CONTAINER(f), sw);
168 Inkscape::FontLister* fontlister = Inkscape::FontLister::get_instance();
170 fsel->family_treeview = gtk_tree_view_new ();
171 GtkTreeViewColumn *column = gtk_tree_view_column_new ();
172 GtkCellRenderer *cell = gtk_cell_renderer_text_new ();
173 gtk_tree_view_column_pack_start (column, cell, FALSE);
174 gtk_tree_view_column_set_attributes (column, cell, "text", 0, NULL);
175 gtk_tree_view_append_column (GTK_TREE_VIEW(fsel->family_treeview), column);
176 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(fsel->family_treeview), FALSE);
177 Glib::RefPtr<Gtk::ListStore> store = fontlister->get_font_list();
178 gtk_tree_view_set_model (GTK_TREE_VIEW(fsel->family_treeview), GTK_TREE_MODEL (Glib::unwrap (store)));
179 gtk_container_add(GTK_CONTAINER(sw), fsel->family_treeview);
180 gtk_widget_show_all (sw);
182 GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(fsel->family_treeview));
183 g_signal_connect (G_OBJECT(selection), "changed", G_CALLBACK (sp_font_selector_family_select_row), fsel);
184 g_object_set_data (G_OBJECT(fsel), "family-treeview", fsel->family_treeview);
187 /* Style frame */
188 f = gtk_frame_new(_("Style"));
189 gtk_widget_show(f);
190 gtk_box_pack_start(GTK_BOX (fsel), f, TRUE, TRUE, 0);
192 GtkWidget *vb = gtk_vbox_new(FALSE, 4);
193 gtk_widget_show(vb);
194 gtk_container_set_border_width(GTK_CONTAINER (vb), 4);
195 gtk_container_add(GTK_CONTAINER(f), vb);
197 sw = gtk_scrolled_window_new(NULL, NULL);
198 gtk_widget_show(sw);
199 gtk_container_set_border_width(GTK_CONTAINER (sw), 4);
200 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
201 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_IN);
202 gtk_box_pack_start(GTK_BOX (vb), sw, TRUE, TRUE, 0);
204 fsel->style_treeview = gtk_tree_view_new ();
205 column = gtk_tree_view_column_new ();
206 cell = gtk_cell_renderer_text_new ();
207 gtk_tree_view_column_pack_start (column, cell, FALSE);
208 gtk_tree_view_column_set_attributes (column, cell, "text", 0, NULL);
209 gtk_tree_view_append_column (GTK_TREE_VIEW(fsel->style_treeview), column);
210 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(fsel->style_treeview), FALSE);
211 gtk_container_add(GTK_CONTAINER(sw), fsel->style_treeview);
212 gtk_widget_show_all (sw);
214 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(fsel->style_treeview));
215 g_signal_connect (G_OBJECT(selection), "changed", G_CALLBACK (sp_font_selector_style_select_row), fsel);
217 GtkWidget *hb = gtk_hbox_new(FALSE, 4);
218 gtk_widget_show(hb);
219 gtk_box_pack_start(GTK_BOX(vb), hb, FALSE, FALSE, 0);
221 fsel->size = gtk_combo_box_entry_new_text ();
222 gtk_widget_set_size_request(fsel->size, 90, -1);
223 g_signal_connect (G_OBJECT(fsel->size), "changed", G_CALLBACK (sp_font_selector_size_changed), fsel);
224 gtk_box_pack_end (GTK_BOX(hb), fsel->size, FALSE, FALSE, 0);
226 GtkWidget *l = gtk_label_new(_("Font size:"));
227 gtk_widget_show_all (l);
228 gtk_box_pack_end(GTK_BOX (hb), l, FALSE, FALSE, 0);
230 for (unsigned int n = 0; sizes[n]; ++n)
231 {
232 gtk_combo_box_append_text (GTK_COMBO_BOX(fsel->size), sizes[n]);
233 }
235 gtk_widget_show_all (fsel->size);
237 fsel->familyidx = 0;
238 fsel->styleidx = 0;
239 fsel->fontsize = 10.0;
240 fsel->fontsize_dirty = false;
241 fsel->font = NULL;
242 }
244 static void sp_font_selector_destroy(GtkObject *object)
245 {
246 SPFontSelector *fsel = SP_FONT_SELECTOR (object);
248 if (fsel->font) {
249 fsel->font->Unref();
250 fsel->font = NULL;
251 }
253 if (fsel->families.length > 0) {
254 nr_name_list_release(&fsel->families);
255 fsel->families.length = 0;
256 }
258 if (fsel->styles.length > 0) {
259 nr_style_list_release(&fsel->styles);
260 fsel->styles.length = 0;
261 }
263 if (GTK_OBJECT_CLASS(fs_parent_class)->destroy) {
264 GTK_OBJECT_CLASS(fs_parent_class)->destroy(object);
265 }
266 }
268 static void sp_font_selector_family_select_row(GtkTreeSelection *selection,
269 SPFontSelector *fsel)
270 {
271 GtkTreeIter iter;
272 GtkTreeModel *model;
273 GtkListStore *store;
274 GtkTreePath *path;
275 GList *list=0;
277 if (!gtk_tree_selection_get_selected (selection, &model, &iter)) return;
279 path = gtk_tree_model_get_path (model, &iter);
280 gtk_tree_model_get (model, &iter, 1, &list, -1);
281 fsel->familyidx = gtk_tree_path_get_indices (path)[0];
282 fsel->styleidx = 0;
284 store = gtk_list_store_new (1, G_TYPE_STRING);
286 for ( ; list ; list = list->next )
287 {
288 gtk_list_store_append (store, &iter);
289 gtk_list_store_set (store, &iter, 0, (char*)list->data, -1);
290 }
292 gtk_tree_view_set_model (GTK_TREE_VIEW (fsel->style_treeview), GTK_TREE_MODEL (store));
293 path = gtk_tree_path_new ();
294 gtk_tree_path_append_index (path, 0);
295 gtk_tree_selection_select_path (gtk_tree_view_get_selection (GTK_TREE_VIEW (fsel->style_treeview)), path);
296 gtk_tree_path_free (path);
297 }
299 static void sp_font_selector_style_select_row (GtkTreeSelection *selection,
300 SPFontSelector *fsel)
301 {
302 GtkTreeModel *model;
303 GtkTreePath *path;
304 GtkTreeIter iter;
306 if (!gtk_tree_selection_get_selected (selection, &model, &iter)) return;
308 path = gtk_tree_model_get_path (model, &iter);
309 fsel->styleidx = gtk_tree_path_get_indices (path)[0];
311 if (!fsel->block_emit)
312 {
313 sp_font_selector_emit_set (fsel);
314 }
315 }
317 static void sp_font_selector_size_changed( GtkComboBox */*cbox*/, SPFontSelector *fsel )
318 {
319 char *text = gtk_combo_box_get_active_text (GTK_COMBO_BOX (fsel->size));
320 gfloat old_size = fsel->fontsize;
322 gchar *endptr;
323 gdouble value = -1;
324 if (text) {
325 value = g_strtod (text, &endptr);
326 if (endptr == text) // conversion failed, non-numeric input
327 value = -1;
328 free (text);
329 }
330 if (value <= 0) {
331 return; // could not parse value
332 }
333 if (value > 10000)
334 value = 10000; // somewhat arbitrary, but text&font preview freezes with too huge fontsizes
336 fsel->fontsize = value;
337 if ( fabs(fsel->fontsize-old_size) > 0.001)
338 {
339 fsel->fontsize_dirty = true;
340 }
342 sp_font_selector_emit_set (fsel);
343 }
345 static void sp_font_selector_emit_set (SPFontSelector *fsel)
346 {
347 font_instance *font;
349 GtkTreeSelection *selection_family;
350 GtkTreeSelection *selection_style;
351 GtkTreeModel *model_family;
352 GtkTreeModel *model_style;
353 GtkTreeIter iter_family;
354 GtkTreeIter iter_style;
355 char *family=0, *style=0;
357 //We need to check this here since most GtkTreeModel operations are not atomic
358 //See GtkListStore documenation, Chapter "Atomic Operations" --mderezynski
360 model_family = gtk_tree_view_get_model (GTK_TREE_VIEW (fsel->family_treeview));
361 if (!model_family) return;
362 model_style = gtk_tree_view_get_model (GTK_TREE_VIEW (fsel->style_treeview));
363 if (!model_style) return;
365 selection_family = gtk_tree_view_get_selection (GTK_TREE_VIEW (fsel->family_treeview));
366 selection_style = gtk_tree_view_get_selection (GTK_TREE_VIEW (fsel->style_treeview));
368 if (!gtk_tree_selection_get_selected (selection_family, NULL, &iter_family)) return;
369 if (!gtk_tree_selection_get_selected (selection_style, NULL, &iter_style)) return;
371 gtk_tree_model_get (model_family, &iter_family, 0, &family, -1);
372 gtk_tree_model_get (model_style, &iter_style, 0, &style, -1);
374 if ((!family) || (!style)) return;
376 font = (font_factory::Default())->FaceFromUIStrings (family, style);
378 // FIXME: when a text object uses non-available font, font==NULL and we can't set size
379 // (and the size shown in the widget is invalid). To fix, here we must always get some
380 // default font, exactly the same as sptext uses for on-canvas display, so that
381 // font!=NULL ever.
382 if (font != fsel->font || ( font && fsel->fontsize_dirty ) ) {
383 if ( font ) {
384 font->Ref();
385 }
386 if ( fsel->font ) {
387 fsel->font->Unref();
388 }
389 fsel->font = font;
390 gtk_signal_emit(GTK_OBJECT(fsel), fs_signals[FONT_SET], fsel->font);
391 }
392 fsel->fontsize_dirty = false;
393 if (font) {
394 font->Unref();
395 }
396 font = NULL;
397 }
399 GtkWidget *sp_font_selector_new()
400 {
401 SPFontSelector *fsel = (SPFontSelector*) gtk_type_new(SP_TYPE_FONT_SELECTOR);
403 return (GtkWidget *) fsel;
404 }
406 void sp_font_selector_set_font (SPFontSelector *fsel, font_instance *font, double size)
407 {
408 if (font)
409 {
410 Gtk::TreePath path;
411 font_instance *tempFont = NULL;
413 Glib::ustring family = font_factory::Default()->GetUIFamilyString(font->descr);
415 try {
416 path = Inkscape::FontLister::get_instance()->get_row_for_font (family);
417 } catch (...) {
418 return;
419 }
421 fsel->block_emit = TRUE;
422 gtk_tree_selection_select_path (gtk_tree_view_get_selection (GTK_TREE_VIEW (fsel->family_treeview)), path.gobj());
423 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (fsel->family_treeview), path.gobj(), NULL, TRUE, 0.5, 0.5);
424 fsel->block_emit = FALSE;
426 GList *list = 0;
427 GtkTreeIter iter;
428 GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW(fsel->family_treeview));
429 gtk_tree_model_get_iter (model, &iter, path.gobj());
430 gtk_tree_model_get (model, &iter, 1, &list, -1);
432 unsigned int currentStyleNumber = 0;
433 unsigned int bestStyleNumber = 0;
435 PangoFontDescription *incomingFont = pango_font_description_copy(font->descr);
436 pango_font_description_unset_fields(incomingFont, PANGO_FONT_MASK_SIZE);
438 char *incomingFontString = pango_font_description_to_string(incomingFont);
440 tempFont = (font_factory::Default())->FaceFromUIStrings(family.c_str(), (char*)list->data);
442 PangoFontDescription *bestMatchForFont = NULL;
443 if (tempFont) {
444 bestMatchForFont = pango_font_description_copy(tempFont->descr);
445 tempFont->Unref();
446 tempFont = NULL;
447 }
449 pango_font_description_unset_fields(bestMatchForFont, PANGO_FONT_MASK_SIZE);
451 list = list->next;
453 while (list) {
454 currentStyleNumber++;
456 tempFont = font_factory::Default()->FaceFromUIStrings(family.c_str(), (char*)list->data);
458 PangoFontDescription *currentMatchForFont = NULL;
459 if (tempFont) {
460 currentMatchForFont = pango_font_description_copy(tempFont->descr);
461 tempFont->Unref();
462 tempFont = NULL;
463 }
465 if (currentMatchForFont) {
466 pango_font_description_unset_fields(currentMatchForFont, PANGO_FONT_MASK_SIZE);
468 char *currentMatchString = pango_font_description_to_string(currentMatchForFont);
470 if (!strcmp(incomingFontString, currentMatchString)
471 || pango_font_description_better_match(incomingFont, bestMatchForFont, currentMatchForFont)) {
472 // Found a better match for the font we are looking for
473 pango_font_description_free(bestMatchForFont);
474 bestMatchForFont = pango_font_description_copy(currentMatchForFont);
475 bestStyleNumber = currentStyleNumber;
476 }
478 g_free(currentMatchString);
480 pango_font_description_free(currentMatchForFont);
481 }
483 list = list->next;
484 }
486 if (bestMatchForFont)
487 pango_font_description_free(bestMatchForFont);
488 if (incomingFont)
489 pango_font_description_free(incomingFont);
490 g_free(incomingFontString);
492 GtkTreePath *path_c = gtk_tree_path_new ();
493 gtk_tree_path_append_index (path_c, bestStyleNumber);
494 gtk_tree_selection_select_path (gtk_tree_view_get_selection (GTK_TREE_VIEW (fsel->style_treeview)), path_c);
495 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (fsel->style_treeview), path_c, NULL, TRUE, 0.5, 0.5);
497 if (size != fsel->fontsize)
498 {
499 gchar s[8];
500 g_snprintf (s, 8, "%.5g", size); // UI, so printf is ok
501 gtk_entry_set_text (GTK_ENTRY (GTK_BIN(fsel->size)->child), s);
502 fsel->fontsize = size;
503 }
504 }
506 }
508 font_instance* sp_font_selector_get_font(SPFontSelector *fsel)
509 {
510 if (fsel->font) {
511 fsel->font->Ref();
512 }
514 return fsel->font;
515 }
517 double sp_font_selector_get_size(SPFontSelector *fsel)
518 {
519 return fsel->fontsize;
520 }
522 /* SPFontPreview */
524 struct SPFontPreview
525 {
526 GtkDrawingArea darea;
528 font_instance *font;
529 raster_font *rfont;
530 gchar *phrase;
531 unsigned long rgba;
532 };
534 struct SPFontPreviewClass
535 {
536 GtkDrawingAreaClass parent_class;
537 };
539 static void sp_font_preview_class_init(SPFontPreviewClass *c);
540 static void sp_font_preview_init(SPFontPreview *fsel);
541 static void sp_font_preview_destroy(GtkObject *object);
543 void sp_font_preview_size_request(GtkWidget *widget, GtkRequisition *req);
544 static gint sp_font_preview_expose(GtkWidget *widget, GdkEventExpose *event);
546 static GtkDrawingAreaClass *fp_parent_class = NULL;
548 GType sp_font_preview_get_type()
549 {
550 static GType type = 0;
551 if (!type) {
552 GTypeInfo info = {
553 sizeof(SPFontPreviewClass),
554 0, // base_init
555 0, // base_finalize
556 (GClassInitFunc)sp_font_preview_class_init,
557 0, // class_finalize
558 0, // class_data
559 sizeof(SPFontPreview),
560 0, // n_preallocs
561 (GInstanceInitFunc)sp_font_preview_init,
562 0 // value_table
563 };
564 type = g_type_register_static(GTK_TYPE_DRAWING_AREA, "SPFontPreview", &info, static_cast<GTypeFlags>(0));
565 }
566 return type;
567 }
569 static void sp_font_preview_class_init (SPFontPreviewClass *c)
570 {
571 GtkObjectClass *object_class = (GtkObjectClass *) c;
572 GtkWidgetClass *widget_class = (GtkWidgetClass *) c;
574 fp_parent_class = (GtkDrawingAreaClass*) gtk_type_class(GTK_TYPE_DRAWING_AREA);
576 object_class->destroy = sp_font_preview_destroy;
578 widget_class->size_request = sp_font_preview_size_request;
579 widget_class->expose_event = sp_font_preview_expose;
580 }
582 static void sp_font_preview_init(SPFontPreview *fprev)
583 {
584 fprev->rgba = 0x000000ff;
585 }
587 static void sp_font_preview_destroy(GtkObject *object)
588 {
589 SPFontPreview *fprev = SP_FONT_PREVIEW (object);
591 if (fprev->rfont) {
592 fprev->rfont->Unref();
593 fprev->rfont = NULL;
594 }
596 if (fprev->font) {
597 fprev->font->Unref();
598 fprev->font = NULL;
599 }
601 g_free(fprev->phrase);
602 fprev->phrase = NULL;
604 if (GTK_OBJECT_CLASS (fp_parent_class)->destroy) {
605 GTK_OBJECT_CLASS (fp_parent_class)->destroy(object);
606 }
607 }
609 void sp_font_preview_size_request(GtkWidget */*widget*/, GtkRequisition *req)
610 {
611 req->width = 256;
612 req->height = 32;
613 }
615 #define SPFP_MAX_LEN 64
617 static gint sp_font_preview_expose(GtkWidget *widget, GdkEventExpose *event)
618 {
619 SPFontPreview *fprev = SP_FONT_PREVIEW(widget);
621 if (GTK_WIDGET_DRAWABLE (widget)) {
622 if (fprev->rfont) {
624 int glyphs[SPFP_MAX_LEN];
625 double hpos[SPFP_MAX_LEN];
627 font_instance *tface = fprev->rfont->daddy;
629 double theSize = fprev->rfont->style.transform.descrim();
631 gchar const *p;
632 if (fprev->phrase) {
633 p = fprev->phrase;
634 } else {
635 /* TRANSLATORS: Test string used in text and font dialog (when no
636 * text has been entered) to get a preview of the font. Choose
637 * some representative characters that users of your locale will be
638 * interested in. */
639 p = _("AaBbCcIiPpQq12369$\342\202\254\302\242?.;/()");
640 }
641 int len = 0;
643 NRRect bbox;
644 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
646 text_wrapper* str_text=new text_wrapper;
647 str_text->SetDefaultFont(tface);
648 str_text->AppendUTF8(p,-1);
649 if ( str_text->uni32_length > 0 ) {
650 str_text->DoLayout();
651 if ( str_text->glyph_length > 0 ) {
652 PangoFont *curPF = NULL;
653 font_instance *curF = NULL;
654 for (int i = 0; i < str_text->glyph_length && i < SPFP_MAX_LEN; i++) {
655 if ( str_text->glyph_text[i].font != curPF ) {
656 curPF = str_text->glyph_text[i].font;
657 if (curF) {
658 curF->Unref();
659 }
660 curF = NULL;
661 if ( curPF ) {
662 PangoFontDescription* pfd = pango_font_describe(curPF);
663 curF = (font_factory::Default())->Face(pfd);
664 pango_font_description_free(pfd);
665 }
666 }
667 Geom::Point base_pt(str_text->glyph_text[i].x, str_text->glyph_text[i].y);
668 base_pt *= theSize;
670 glyphs[len] = str_text->glyph_text[i].gl;
671 hpos[len] = base_pt[0];
672 len++;
673 if ( curF ) {
674 Geom::OptRect nbbox = curF->BBox(str_text->glyph_text[i].gl);
675 if (nbbox) {
676 bbox.x0 = MIN(bbox.x0, base_pt[Geom::X] + theSize * (nbbox->min())[0]);
677 bbox.y0 = MIN(bbox.y0, base_pt[Geom::Y] - theSize * (nbbox->max())[1]);
678 bbox.x1 = MAX(bbox.x1, base_pt[Geom::X] + theSize * (nbbox->max())[0]);
679 bbox.y1 = MAX(bbox.y1, base_pt[Geom::Y] - theSize * (nbbox->min())[1]);
680 }
681 }
682 }
683 if ( curF ) {
684 curF->Unref();
685 }
686 }
687 }
689 // XXX: FIXME: why does this code ignore adv.y
690 /* while (p && *p && (len < SPFP_MAX_LEN)) {
691 unsigned int unival;
692 NRRect gbox;
693 unival = g_utf8_get_char (p);
694 glyphs[len] = tface->MapUnicodeChar( unival);
695 hpos[len] = (int)px;
696 Geom::Point adv = fprev->rfont->Advance(glyphs[len]);
697 fprev->rfont->BBox( glyphs[len], &gbox);
698 bbox.x0 = MIN (px + gbox.x0, bbox.x0);
699 bbox.y0 = MIN (py + gbox.y0, bbox.y0);
700 bbox.x1 = MAX (px + gbox.x1, bbox.x1);
701 bbox.y1 = MAX (py + gbox.y1, bbox.y1);
702 px += adv[Geom::X];
703 len += 1;
704 p = g_utf8_next_char (p);
705 }*/
707 float startx = (widget->allocation.width - (bbox.x1 - bbox.x0)) / 2;
708 float starty = widget->allocation.height - (widget->allocation.height - (bbox.y1 - bbox.y0)) / 2 - bbox.y1;
710 for (int y = event->area.y; y < event->area.y + event->area.height; y += 64) {
711 for (int x = event->area.x; x < event->area.x + event->area.width; x += 64) {
712 NRPixBlock pb, m;
713 int x0 = x;
714 int y0 = y;
715 int x1 = MIN(x0 + 64, event->area.x + event->area.width);
716 int y1 = MIN(y0 + 64, event->area.y + event->area.height);
717 guchar *ps = nr_pixelstore_16K_new (TRUE, 0xff);
718 nr_pixblock_setup_extern(&pb, NR_PIXBLOCK_MODE_R8G8B8, x0, y0, x1, y1, ps, 3 * (x1 - x0), FALSE, FALSE);
719 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, x0, y0, x1, y1, TRUE);
720 pb.empty = FALSE;
722 PangoFont *curPF = NULL;
723 font_instance *curF = NULL;
724 raster_font *curRF = NULL;
725 for (int i=0; i < len; i++) {
726 if ( str_text->glyph_text[i].font != curPF ) {
727 curPF=str_text->glyph_text[i].font;
728 if ( curF ) {
729 curF->Unref();
730 }
731 curF = NULL;
732 if ( curPF ) {
733 PangoFontDescription* pfd = pango_font_describe(curPF);
734 curF=(font_factory::Default())->Face(pfd);
735 pango_font_description_free(pfd);
736 }
737 if ( curF ) {
738 if ( curRF ) {
739 curRF->Unref();
740 }
741 curRF = NULL;
742 curRF = curF->RasterFont(fprev->rfont->style);
743 }
744 }
745 raster_glyph *g = (curRF) ? curRF->GetGlyph(glyphs[i]) : NULL;
746 if ( g ) {
747 g->Blit(Geom::Point(hpos[i] + startx, starty), m);
748 }
749 }
750 if (curRF) {
751 curRF->Unref();
752 }
753 if (curF) {
754 curF->Unref();
755 }
757 nr_blit_pixblock_mask_rgba32(&pb, &m, fprev->rgba);
758 gdk_draw_rgb_image(widget->window, widget->style->black_gc,
759 x0, y0, x1 - x0, y1 - y0,
760 GDK_RGB_DITHER_NONE, NR_PIXBLOCK_PX (&pb), pb.rs);
761 nr_pixblock_release(&m);
762 nr_pixblock_release(&pb);
763 nr_pixelstore_16K_free(ps);
764 }
765 }
767 delete str_text;
769 } else {
770 nr_gdk_draw_gray_garbage(widget->window, widget->style->black_gc,
771 event->area.x, event->area.y,
772 event->area.width, event->area.height);
773 }
774 }
776 return TRUE;
777 }
779 GtkWidget * sp_font_preview_new()
780 {
781 GtkWidget *w = (GtkWidget*) gtk_type_new(SP_TYPE_FONT_PREVIEW);
783 return w;
784 }
786 void sp_font_preview_set_font(SPFontPreview *fprev, font_instance *font, SPFontSelector *fsel)
787 {
788 if (font)
789 {
790 font->Ref();
791 }
793 if (fprev->font)
794 {
795 fprev->font->Unref();
796 }
798 fprev->font = font;
800 if (fprev->rfont)
801 {
802 fprev->rfont->Unref();
803 fprev->rfont=NULL;
804 }
806 if (fprev->font)
807 {
808 Geom::Matrix flip(Geom::Scale(fsel->fontsize, -fsel->fontsize));
809 fprev->rfont = fprev->font->RasterFont(flip, 0);
810 }
812 if (GTK_WIDGET_DRAWABLE (fprev)) gtk_widget_queue_draw (GTK_WIDGET (fprev));
813 }
815 void sp_font_preview_set_rgba32(SPFontPreview *fprev, guint32 rgba)
816 {
817 fprev->rgba = rgba;
818 if (GTK_WIDGET_DRAWABLE (fprev)) {
819 gtk_widget_queue_draw (GTK_WIDGET (fprev));
820 }
821 }
823 void sp_font_preview_set_phrase(SPFontPreview *fprev, const gchar *phrase)
824 {
825 g_free (fprev->phrase);
826 if (phrase) {
827 fprev->phrase = g_strdup (phrase);
828 } else {
829 fprev->phrase = NULL;
830 }
831 if (GTK_WIDGET_DRAWABLE(fprev)) {
832 gtk_widget_queue_draw (GTK_WIDGET (fprev));
833 }
834 }
837 /*
838 Local Variables:
839 mode:c++
840 c-file-style:"stroustrup"
841 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
842 indent-tabs-mode:nil
843 fill-column:99
844 End:
845 */
846 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :