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C/C++ Source or Header  |  2000-12-13  |  12.6 KB  |  420 lines
  1. /*
  2.  * GIMP Dynamic Text -- This is a plug-in for The GIMP 1.0
  3.  * Copyright (C) 1998,1999,2000 Marco Lamberto <lm@geocities.com>
  4.  * Web page: http://www.geocities.com/Tokyo/1474/gimp/
  5.  *
  6.  * This program is free software; you can redistribute it and/or modify
  7.  * it under the terms of the GNU General Public License as published by
  8.  * the Free Software Foundation; either version 2 of the License, or
  9.  * (at your option) any later version.
  10.  *
  11.  * This program is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.  * GNU General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU General Public License
  17.  * along with this program; if not, write to the Free Software
  18.  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19.  *
  20.  * $Id: font_selection.c,v 1.13 2000/12/11 18:46:32 neo Exp $
  21.  */
  22.  
  23. #include "config.h"
  24.  
  25. #include <stdio.h>
  26. #include <stdlib.h>
  27. #include <string.h>
  28. #include <gdk/gdkkeysyms.h>
  29. #include <gtk/gtk.h>
  30.  
  31. #include "libgimp/stdplugins-intl.h"
  32. #include "font_selection.h"
  33.  
  34.  
  35. static void font_selection_class_init(FontSelectionClass *class);
  36. static void font_selection_init(FontSelection *fs);
  37. void on_font_selection_family_changed(GtkWidget *widget, gpointer data);
  38. void on_font_selection_value_changed(GtkWidget *widget, gpointer data);
  39. gboolean hash_entry_free(gpointer key, gpointer val, gpointer user_data);
  40. void on_fs_family_changed(GtkWidget *widget, gint row, gint column,
  41.     GdkEvent *event, gpointer data);
  42. void on_fs_style_changed(GtkWidget *widget, gint row, gint column,
  43.     GdkEvent *event, gpointer data);
  44. void on_fs_size_changed(GtkWidget *widget, gpointer data);
  45. void build_font_style_list(FontSelection *fs);
  46.  
  47.  
  48. enum {
  49.     FONT_CHANGED,
  50.     LAST_SIGNAL
  51. };
  52.  
  53.  
  54. static gint font_selection_signals[LAST_SIGNAL] = { 0 };
  55.  
  56.  
  57. guint font_selection_get_type(void)
  58. {
  59.     static guint fs_type = 0;
  60.  
  61.     if (!fs_type) {
  62.         GtkTypeInfo fs_info = {
  63.             "FontSelection",
  64.             sizeof(FontSelection),
  65.             sizeof(FontSelectionClass),
  66.             (GtkClassInitFunc)font_selection_class_init,
  67.             (GtkObjectInitFunc)font_selection_init,
  68.             (GtkArgSetFunc)NULL,
  69.             (GtkArgGetFunc)NULL,
  70. #ifdef GTK_HAVE_FEATURES_1_1_12
  71.             (GtkClassInitFunc)NULL,
  72. #endif
  73.         };
  74.         fs_type = gtk_type_unique(gtk_hbox_get_type(), &fs_info);
  75.     }
  76.     return fs_type;
  77. }
  78.  
  79.  
  80. static void font_selection_class_init(FontSelectionClass *klass)
  81. {
  82.     GtkObjectClass *object_class;
  83.  
  84.     object_class = (GtkObjectClass *)klass;
  85.  
  86.     font_selection_signals[FONT_CHANGED] = gtk_signal_new("font_changed",
  87.         GTK_RUN_FIRST, object_class->type,
  88.         GTK_SIGNAL_OFFSET(FontSelectionClass, font_changed),
  89.         gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
  90.  
  91.     gtk_object_class_add_signals(object_class, font_selection_signals, LAST_SIGNAL);
  92.  
  93.     klass->font_changed = NULL;
  94. }
  95.  
  96.  
  97. static void font_selection_init(FontSelection *fs)
  98. {
  99.     GtkObject *font_size_adj;
  100.     GList *list = NULL;
  101.     gint pos;
  102.     gchar *txt;
  103.  
  104.     fs->font_selection = gtk_font_selection_new();
  105. #ifdef DEBUG_FONT_SELECTION
  106.     /* FIXME: allow using the gtk_font_slector through a popup system! */
  107.     gtk_box_pack_start(GTK_BOX(fs), fs->font_selection, TRUE, TRUE, 2);
  108.   gtk_widget_show(fs->font_selection);
  109. #endif
  110.  
  111.     fs->skip_fs_events = TRUE;
  112.     gtk_signal_connect_after(
  113.         GTK_OBJECT(GTK_FONT_SELECTION(fs->font_selection)->font_clist),
  114.         "select_row", GTK_SIGNAL_FUNC(on_fs_family_changed), fs);
  115.     gtk_signal_connect_after(
  116.         GTK_OBJECT(GTK_FONT_SELECTION(fs->font_selection)->font_style_clist),
  117.         "select_row", GTK_SIGNAL_FUNC(on_fs_style_changed), fs);
  118.     gtk_signal_connect_after(
  119.         GTK_OBJECT(GTK_FONT_SELECTION(fs->font_selection)->size_entry),
  120.         "changed", GTK_SIGNAL_FUNC(on_fs_size_changed), fs);
  121.  
  122.     list = NULL;
  123.     pos = GTK_CLIST(GTK_FONT_SELECTION(fs->font_selection)->font_clist)->rows;
  124.     fs->font_names_hash = g_hash_table_new(g_str_hash, g_str_equal);
  125.     while (pos-- > 0) {
  126.         gtk_clist_get_text(GTK_CLIST(GTK_FONT_SELECTION(fs->font_selection)->font_clist), pos, 0, &txt);
  127.         list = g_list_prepend(list, g_strdup(txt));
  128.         g_hash_table_insert(fs->font_names_hash, g_strdup(txt), g_memdup(&pos, sizeof(gint)));
  129. #ifdef DEBUG_FONT_SELECTION
  130.         /*
  131.         printf("FONT[%4d]: '%s'\n", pos, txt);
  132.         */
  133. #endif
  134.     }
  135.  
  136.   fs->font_family = gtk_combo_new();
  137.     gtk_combo_set_popdown_strings(GTK_COMBO(fs->font_family), g_list_first(list));
  138.     g_list_free(list);
  139.     gtk_entry_set_editable(GTK_ENTRY(GTK_COMBO(fs->font_family)->entry), FALSE);
  140.     gtk_combo_set_value_in_list(GTK_COMBO(fs->font_family), 0, FALSE);
  141.     gtk_signal_connect(GTK_OBJECT(GTK_COMBO(fs->font_family)->entry),
  142.         "changed", GTK_SIGNAL_FUNC(on_font_selection_family_changed), fs);
  143.   gtk_box_pack_start(GTK_BOX(fs), fs->font_family, TRUE, TRUE, 2);
  144.   gtk_widget_show(fs->font_family);
  145.  
  146.   fs->font_style = gtk_combo_new();
  147.     gtk_entry_set_editable(GTK_ENTRY(GTK_COMBO(fs->font_style)->entry), FALSE);
  148.     gtk_widget_set_usize(GTK_COMBO(fs->font_style)->entry, 120, -1);
  149.     gtk_combo_set_value_in_list(GTK_COMBO(fs->font_family), 0, FALSE);
  150.     gtk_signal_connect(GTK_OBJECT(GTK_COMBO(fs->font_style)->entry), "changed",
  151.         GTK_SIGNAL_FUNC(on_font_selection_value_changed), fs);
  152.   gtk_box_pack_start(GTK_BOX(fs), fs->font_style, TRUE, TRUE, 2);
  153.   gtk_widget_show(fs->font_style);
  154.  
  155.   font_size_adj = gtk_adjustment_new(14, 1, 1000, 1, 10, 10);
  156.   fs->font_size = gtk_spin_button_new(GTK_ADJUSTMENT(font_size_adj), 1, 0);
  157.   gtk_spin_button_set_numeric(GTK_SPIN_BUTTON(fs->font_size), TRUE);
  158.   gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(fs->font_size), GTK_UPDATE_ALWAYS);
  159.     gtk_signal_connect(GTK_OBJECT(fs->font_size), "changed",
  160.         GTK_SIGNAL_FUNC(on_font_selection_value_changed), fs);
  161.   gtk_box_pack_start(GTK_BOX(fs), fs->font_size, TRUE, TRUE, 2);
  162.   gtk_widget_show(fs->font_size);
  163.  
  164.   fs->font_metric = gtk_combo_new();
  165.     list = NULL;
  166.   list = g_list_append(list, _("pixels"));
  167.   list = g_list_append(list, _("points"));
  168.   gtk_combo_set_popdown_strings(GTK_COMBO(fs->font_metric), list);
  169.   g_list_free(list);
  170.     gtk_entry_set_editable(GTK_ENTRY(GTK_COMBO(fs->font_metric)->entry), FALSE);
  171.     gtk_widget_set_usize(GTK_COMBO(fs->font_metric)->entry, 40, -1);
  172.     gtk_combo_set_value_in_list(GTK_COMBO(fs->font_metric), 0, FALSE);
  173.     gtk_signal_connect(GTK_OBJECT(GTK_COMBO(fs->font_metric)->entry), "changed",
  174.         GTK_SIGNAL_FUNC(on_font_selection_value_changed), fs);
  175.   gtk_box_pack_start(GTK_BOX(fs), fs->font_metric, TRUE, TRUE, 2);
  176.   gtk_widget_show(fs->font_metric);
  177.  
  178.     on_font_selection_family_changed(NULL, fs);
  179.     on_font_selection_value_changed(NULL, fs);
  180. }
  181.  
  182. void on_fs_family_changed(GtkWidget *widget, gint row, gint column,
  183.     GdkEvent *event, gpointer data)
  184. {
  185.     FontSelection *fs;
  186.  
  187.     fs = FONT_SELECTION(data);
  188.  
  189.     if (fs->skip_fs_events)
  190.         return;
  191.     
  192. #ifdef DEBUG_FONT_SELECTION
  193.     printf("SELECT_FAMILY: %d\n", row);
  194. #endif
  195.     gtk_list_select_item(GTK_LIST(GTK_COMBO(fs->font_family)->list), row);
  196. }
  197.  
  198. void on_fs_style_changed(GtkWidget *widget, gint row, gint column,
  199.     GdkEvent *event, gpointer data)
  200. {
  201.     FontSelection *fs;
  202.  
  203.     fs = FONT_SELECTION(data);
  204.  
  205.     if (fs->skip_fs_events)
  206.         return;
  207.  
  208. #ifdef DEBUG_FONT_SELECTION
  209.     printf("SELECT_STYLE: %d\n", row);
  210. #endif
  211.     build_font_style_list(fs);
  212.     gtk_list_select_item(GTK_LIST(GTK_COMBO(fs->font_style)->list), row);
  213. }
  214.  
  215. void on_fs_size_changed(GtkWidget *widget, gpointer data)
  216. {
  217.     FontSelection *fs;
  218.  
  219.     fs = FONT_SELECTION(data);
  220.  
  221.     if (fs->skip_fs_events)
  222.         return;
  223.  
  224. #ifdef DEBUG_FONT_SELECTION
  225.     printf("SELECT_SIZE: '%s'\n", gtk_entry_get_text(GTK_ENTRY(widget)));
  226. #endif
  227.   gtk_spin_button_set_value(GTK_SPIN_BUTTON(fs->font_size),
  228.         atof(gtk_entry_get_text(GTK_ENTRY(widget))));
  229. }
  230.  
  231. GtkWidget* font_selection_new(void)
  232. {
  233.     return GTK_WIDGET(gtk_type_new(font_selection_get_type()));
  234. }
  235.  
  236.  
  237. void on_font_selection_family_changed(GtkWidget *widget, gpointer data)
  238. {
  239.     FontSelection *fs = NULL;
  240.     gint *pos = NULL;
  241.  
  242.     fs = FONT_SELECTION(data);
  243.     
  244.     if (!fs->skip_fs_events)
  245.         return;
  246.  
  247.     pos = g_hash_table_lookup(fs->font_names_hash,
  248.         gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(fs->font_family)->entry)));
  249.     if (pos == NULL) {
  250.         printf("ERR_on_font_selection_family_changed '%s'\n",
  251.             gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(fs->font_family)->entry)));
  252.         return;
  253.     }
  254.  
  255.     gtk_clist_select_row(
  256.         GTK_CLIST(GTK_FONT_SELECTION(fs->font_selection)->font_clist), *pos, 0);
  257.     build_font_style_list(fs);
  258. }
  259.  
  260. void build_font_style_list(FontSelection *fs)
  261. {
  262.     gint row, i;
  263.     gchar *txt = NULL;
  264.     gchar *pfx = NULL;
  265.     GList *list = NULL;
  266.  
  267.     if (fs->font_styles_hash != NULL) {
  268.         g_hash_table_foreach_remove(fs->font_styles_hash, hash_entry_free, NULL);
  269.         g_hash_table_destroy(fs->font_styles_hash);
  270.     }
  271.     fs->font_styles_hash = g_hash_table_new(g_str_hash, g_str_equal);
  272.  
  273.     row = GTK_CLIST(GTK_FONT_SELECTION(
  274.         fs->font_selection)->font_style_clist)->rows;
  275.     for (i = 0; i < row; i++) {
  276.         gtk_clist_get_text(GTK_CLIST(GTK_FONT_SELECTION(fs->font_selection)->font_style_clist), i, 0, &txt);
  277.         if (strchr(txt, '-') != NULL) {
  278.             pfx = txt;
  279.         } else {
  280.             if (pfx != NULL)
  281.                 txt = g_strdup_printf("%s (%s)", txt, pfx);
  282.  
  283.             g_hash_table_insert(fs->font_styles_hash, txt,
  284.                 g_memdup(&i, sizeof(gint)));
  285.             list = g_list_append(list, txt);
  286. #ifdef DEBUG_FONT_SELECTION
  287.             /*
  288.             printf("\t'%s'\n", txt);
  289.             */
  290. #endif
  291.         }
  292.     }
  293.  
  294.     gtk_combo_set_popdown_strings(GTK_COMBO(fs->font_style), list);
  295.     g_list_free(list);
  296. }
  297.  
  298.  
  299. void on_font_selection_value_changed(GtkWidget *widget, gpointer data)
  300. {
  301.     FontSelection *fs;
  302.  
  303.     fs = FONT_SELECTION(data);
  304.  
  305.     if (!fs->skip_fs_events)
  306.         return;
  307.  
  308.     if (strcmp(gtk_entry_get_text(
  309.         GTK_ENTRY(GTK_COMBO(fs->font_metric)->entry)), _("pixels")) == 0) {
  310.         gtk_button_clicked(
  311.             GTK_BUTTON(GTK_FONT_SELECTION(fs->font_selection)->pixels_button));
  312.     } else {
  313.         gtk_button_clicked(
  314.             GTK_BUTTON(GTK_FONT_SELECTION(fs->font_selection)->points_button));
  315.     }
  316.  
  317.     gtk_entry_set_text(
  318.         GTK_ENTRY(GTK_FONT_SELECTION(fs->font_selection)->size_entry),
  319.         gtk_entry_get_text(GTK_ENTRY(fs->font_size)));
  320.  
  321.     /* force update the gtk_font_selection font_size */
  322.     {
  323.         GdkEvent *event;
  324.  
  325.         event = g_new0(GdkEvent, 1);
  326.         event->type = GDK_KEY_PRESS;
  327.         event->key.keyval = GDK_Return;
  328.         gtk_widget_event(GTK_FONT_SELECTION(fs->font_selection)->size_entry,
  329.             event);
  330.         g_free(event);
  331.     }
  332.  
  333.     if (fs->font_styles_hash != NULL) {
  334.         gint *pos;
  335.     
  336.         pos = g_hash_table_lookup(fs->font_styles_hash,
  337.             gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(fs->font_style)->entry)));
  338.         gtk_clist_select_row(
  339.             GTK_CLIST(GTK_FONT_SELECTION(fs->font_selection)->font_style_clist),
  340.             *pos, 0);
  341.     }
  342.  
  343. #ifdef DEBUG_FONT_SELECTION
  344.     printf("Loading font: %s\n",
  345.         gtk_font_selection_get_font_name(GTK_FONT_SELECTION(fs->font_selection)));
  346. #endif
  347.  
  348.     gtk_entry_set_position(GTK_ENTRY(GTK_COMBO(fs->font_family)->entry), 0);
  349.     gtk_entry_set_position(GTK_ENTRY(GTK_COMBO(fs->font_style)->entry), 0);
  350.     gtk_entry_set_position(GTK_ENTRY(>K_SPIN_BUTTON(fs->font_size)->entry), 0);
  351.     gtk_entry_set_position(GTK_ENTRY(GTK_COMBO(fs->font_metric)->entry), 0);
  352.  
  353.     /* signal emit "font_changed" */
  354.     gtk_signal_emit(GTK_OBJECT(data), font_selection_signals[FONT_CHANGED]);
  355. }
  356.  
  357. GdkFont* font_selection_get_font(FontSelection *fs)
  358. {
  359.     return gtk_font_selection_get_font(GTK_FONT_SELECTION(fs->font_selection));
  360. }
  361.  
  362. gchar* font_selection_get_font_name(FontSelection *fs)
  363. {
  364.     return gtk_font_selection_get_font_name(
  365.         GTK_FONT_SELECTION(fs->font_selection));
  366. }
  367.  
  368. gboolean font_selection_set_font_name(FontSelection *fs,
  369.     const gchar *fontname)
  370. {
  371.     gboolean rval;
  372.  
  373. #ifdef DEBUG_FONT_SELECTION
  374.     printf("Req. font: '%s'\n", fontname);
  375. #endif
  376.     fs->skip_fs_events = FALSE;
  377.     rval = gtk_font_selection_set_font_name(
  378.         GTK_FONT_SELECTION(fs->font_selection), fontname);
  379.     fs->skip_fs_events = TRUE;
  380.  
  381.     /* signal emit "font_changed" */
  382.     gtk_signal_emit(GTK_OBJECT(fs), font_selection_signals[FONT_CHANGED]);
  383.  
  384.     return rval;
  385. }
  386.  
  387. gboolean hash_entry_free(gpointer key, gpointer val, gpointer user_data)
  388. {
  389.     g_free(val);
  390.     return TRUE;
  391. }
  392.  
  393. #ifdef DEBUG_FONT_SELECTION
  394. int main(void)
  395. {
  396.     GtkWidget *window, *fs;
  397.  
  398.     gtk_init(NULL, NULL);
  399.         
  400.   window = gtk_window_new(GTK_WINDOW_DIALOG);
  401.   gtk_container_set_border_width(GTK_CONTAINER(window), 4);
  402.     gtk_signal_connect(GTK_OBJECT(window), "destroy",
  403.         GTK_SIGNAL_FUNC(gtk_main_quit), NULL);
  404.     gtk_widget_show(window);
  405.  
  406.     fs = font_selection_new();
  407.     gtk_widget_show(fs);
  408.   gtk_container_add(GTK_CONTAINER(window), fs);
  409.  
  410.     font_selection_set_font_name(FONT_SELECTION(fs),
  411.         "-unknown-helvetica-black-r-normal--24-*-75-75-p-74-adobe-fontspecific");
  412.  
  413.   gtk_main();
  414.  
  415.     return FALSE;
  416. }
  417. #endif
  418.  
  419. /* vim: set ts=2 sw=2 tw=79 ai nowrap: */
  420.