The GtkRadiant sources as originally released under the GPL license.

radiant/gtkmisc.cpp

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+/*
+Copyright (c) 2001, Loki software, inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice, this list 
+of conditions and the following disclaimer.
+
+Redistributions in binary form must reproduce the above copyright notice, this
+list of conditions and the following disclaimer in the documentation and/or
+other materials provided with the distribution.
+
+Neither the name of Loki software nor the names of its contributors may be used 
+to endorse or promote products derived from this software without specific prior 
+written permission. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY 
+DIRECT,INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+*/
+
+//
+// Small functions to help with GTK
+//
+
+#include "gtkmisc.h"
+
+#include <gtk/gtkcolorseldialog.h>
+#include <gtk/gtkentry.h>
+
+#include "math/vector.h"
+#include "os/path.h"
+
+#include "gtkutil/dialog.h"
+#include "gtkutil/filechooser.h"
+#include "gtkutil/menu.h"
+#include "gtkutil/toolbar.h"
+#include "commands.h"
+
+
+// =============================================================================
+// Misc stuff
+
+void command_connect_accelerator(const char* name)
+{
+  const Command& command = GlobalCommands_find(name);
+  GlobalShortcuts_register(name);
+  command_connect_accelerator(command.m_accelerator, command.m_callback);
+}
+
+void command_disconnect_accelerator(const char* name)
+{
+  const Command& command = GlobalCommands_find(name);
+  command_disconnect_accelerator(command.m_accelerator, command.m_callback);
+}
+
+void toggle_add_accelerator(const char* name)
+{
+  const Toggle& toggle = GlobalToggles_find(name);
+  GlobalShortcuts_register(name);
+  command_connect_accelerator(toggle.m_command.m_accelerator, toggle.m_command.m_callback);
+}
+
+GtkCheckMenuItem* create_check_menu_item_with_mnemonic(GtkMenu* menu, const char* mnemonic, const char* commandName)
+{
+  GlobalShortcuts_register(commandName);
+  const Toggle& toggle = GlobalToggles_find(commandName);
+  command_connect_accelerator(toggle.m_command.m_accelerator, toggle.m_command.m_callback);
+  return create_check_menu_item_with_mnemonic(menu, mnemonic, toggle);
+}
+
+GtkMenuItem* create_menu_item_with_mnemonic(GtkMenu* menu, const char *mnemonic, const char* commandName)
+{
+  GlobalShortcuts_register(commandName);
+  const Command& command = GlobalCommands_find(commandName);
+  command_connect_accelerator(command.m_accelerator, command.m_callback);
+  return create_menu_item_with_mnemonic(menu, mnemonic, command);
+}
+
+GtkButton* toolbar_append_button(GtkToolbar* toolbar, const char* description, const char* icon, const char* commandName)
+{
+  return toolbar_append_button(toolbar, description, icon, GlobalCommands_find(commandName));
+}
+
+GtkToggleButton* toolbar_append_toggle_button(GtkToolbar* toolbar, const char* description, const char* icon, const char* commandName)
+{
+  return toolbar_append_toggle_button(toolbar, description, icon, GlobalToggles_find(commandName));
+}
+
+// =============================================================================
+// File dialog
+
+bool color_dialog (GtkWidget *parent, Vector3& color, const char* title)
+{
+  GtkWidget* dlg;
+  double clr[3];
+  ModalDialog dialog;
+
+  clr[0] = color[0];
+  clr[1] = color[1];
+  clr[2] = color[2];
+
+  dlg = gtk_color_selection_dialog_new (title);
+  gtk_color_selection_set_color (GTK_COLOR_SELECTION (GTK_COLOR_SELECTION_DIALOG (dlg)->colorsel), clr);
+  g_signal_connect(G_OBJECT(dlg), "delete_event", G_CALLBACK(dialog_delete_callback), &dialog);
+  g_signal_connect(G_OBJECT(GTK_COLOR_SELECTION_DIALOG(dlg)->ok_button), "clicked", G_CALLBACK(dialog_button_ok), &dialog);
+  g_signal_connect(G_OBJECT(GTK_COLOR_SELECTION_DIALOG(dlg)->cancel_button), "clicked", G_CALLBACK(dialog_button_cancel), &dialog);
+
+  if (parent != 0)
+    gtk_window_set_transient_for (GTK_WINDOW (dlg), GTK_WINDOW (parent));
+
+  bool ok = modal_dialog_show(GTK_WINDOW(dlg), dialog) == eIDOK;
+  if(ok)
+  {
+    GdkColor gdkcolor;
+    gtk_color_selection_get_current_color (GTK_COLOR_SELECTION (GTK_COLOR_SELECTION_DIALOG (dlg)->colorsel), &gdkcolor);
+    clr[0] = gdkcolor.red / 65535.0;
+    clr[1] = gdkcolor.green / 65535.0;
+    clr[2] = gdkcolor.blue / 65535.0;
+
+    color[0] = (float)clr[0];
+    color[1] = (float)clr[1];
+    color[2] = (float)clr[2];
+  }
+
+  gtk_widget_destroy(dlg);
+
+  return ok;
+}
+
+void button_clicked_entry_browse_file(GtkWidget* widget, GtkEntry* entry)
+{
+  const char *filename = file_dialog(gtk_widget_get_toplevel(widget), TRUE, "Choose File", gtk_entry_get_text(entry));
+  
+  if(filename != 0)
+  {
+    gtk_entry_set_text(entry, filename);
+  }
+}
+
+void button_clicked_entry_browse_directory(GtkWidget* widget, GtkEntry* entry)
+{
+  const char* text = gtk_entry_get_text(entry);
+  char *dir = dir_dialog(gtk_widget_get_toplevel(widget), "Choose Directory", path_is_absolute(text) ? text : "" );
+  
+  if(dir != 0)
+  {
+    gchar* converted = g_filename_to_utf8(dir, -1, 0, 0, 0);
+    gtk_entry_set_text(entry, converted);
+    g_free(dir);
+    g_free(converted);
+  }
+}
+
+