callbacks.c

Gtk+,glade3 部件应用示例源代码。

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
 * callbacks.c
 * Copyright (C) wwsh 2008 <[e-mail]>
 * 
 * callbacks.c is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * callbacks.c is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <gtk/gtk.h>
#include <stdlib.h>
#include <math.h>


#include "callbacks.h"



/* For testing propose use the local (not installed) glade file */
/* #define GLADE_FILE PACKAGE_DATA_DIR"/demo_1/glade/demo_1.glade" */
#define GLADE_FILE "demo_1.glade"


MainWindow* mwin;
static gint popup_handler_window(GtkWidget *widget, GdkEvent *event);

const gchar *default_folder_for_opening;
const gchar *default_folder_for_saving = "/home/wwsh";
const gchar *filename_for_existing_document;
gboolean user_edited_a_new_document = TRUE;


enum
{
	TITLE_COLUMN,
	AUTHOR_COLUMN,
	CHECKED_COLUMN,
	N_COLUMNS
};


void 
MessageBox(gchar* str)
{
	printf("messagebox\n");
	
	GtkWidget *dialog;
	dialog = gtk_message_dialog_new (mwin->window,
									 GTK_DIALOG_DESTROY_WITH_PARENT,
									 GTK_MESSAGE_INFO,
									 GTK_BUTTONS_CLOSE,
									 "=> '%s'",
									 str);
	gtk_dialog_run(GTK_DIALOG(dialog));
	gtk_widget_destroy (dialog);

}


void
tree_view_init()
{
	GtkTreeStore *store = gtk_tree_store_new(N_COLUMNS,       /* Total number of columns */
											 G_TYPE_STRING,   /* Book title              */
											 G_TYPE_STRING,   /* Author                  */
											 G_TYPE_BOOLEAN); /* Is checked out?         */

	GtkTreeIter iter1;  /* Parent iter */
	GtkTreeIter iter2;  /* Child iter  */

	gtk_tree_store_append (store, &iter1, NULL);  /* Acquire a top-level iterator */
	gtk_tree_store_set (store, &iter1,
						TITLE_COLUMN, "The Art of Computer Programming",
						AUTHOR_COLUMN, "Donald E. Knuth",
						CHECKED_COLUMN, FALSE,
						-1);

	gtk_tree_store_append (store, &iter2, &iter1);  /* Acquire a child iterator */
	gtk_tree_store_set (store, &iter2,
						TITLE_COLUMN, "Volume 1: Fundamental Algorithms",
						CHECKED_COLUMN, TRUE,
						-1);

	gtk_tree_store_append (store, &iter2, &iter1);
	gtk_tree_store_set (store, &iter2,
						TITLE_COLUMN, "Volume 2: Seminumerical Algorithms",
						CHECKED_COLUMN, TRUE,
						-1);

	gtk_tree_store_append (store, &iter2, &iter1);
	gtk_tree_store_set (store, &iter2,
						TITLE_COLUMN, "Volume 3: Sorting and Searching",
						CHECKED_COLUMN, TRUE,
						-1);

	// 设置树视图的数据
	gtk_tree_view_set_model(mwin->treeview, GTK_TREE_MODEL(store));
	
	GtkCellRenderer *renderer;
	GtkTreeViewColumn *column;
	
	
	// Column Title
	renderer = gtk_cell_renderer_text_new();
	column = gtk_tree_view_column_new_with_attributes("Title",
													  renderer,
													  "text", TITLE_COLUMN,
													  NULL);
	gtk_tree_view_append_column(GTK_TREE_VIEW (mwin->treeview), column);
	// Column Author
	renderer = gtk_cell_renderer_text_new();
	column = gtk_tree_view_column_new_with_attributes("Author",
													  renderer,
													  "text", AUTHOR_COLUMN,
													  NULL);
	gtk_tree_view_append_column(GTK_TREE_VIEW (mwin->treeview), column);
	// Column Checked
	renderer = gtk_cell_renderer_toggle_new();
	column = gtk_tree_view_column_new_with_attributes("Checked Out",
													  renderer,
													  "active", CHECKED_COLUMN,
													  "radio", CHECKED_COLUMN,
													  NULL);
	//gtk_cell_renderer_toggle_set_radio(renderer, TRUE);
	//gtk_cell_renderer_toggle_set_active(renderer, TRUE);
	gtk_tree_view_append_column(GTK_TREE_VIEW (mwin->treeview), column);
	
	
	// combobox 设置组合框内容为store
	// gtk_combo_box_set_model(mwin->p3_combobox, GTK_TREE_MODEL(store));
	// combo box
	gtk_combo_box_append_text(mwin->p3_combobox, "add a new item");
	gtk_combo_box_append_text(mwin->p3_combobox, "remove the first item");
	// combo box entry
	gtk_combo_box_append_text(GTK_COMBO_BOX(mwin->p3_comboboxentry), "add a new item");
	gtk_combo_box_append_text(GTK_COMBO_BOX(mwin->p3_comboboxentry), "remove the first item");
	
}




GtkWindow*
create_main_window(void)
{
	default_folder_for_opening = g_get_home_dir();
	default_folder_for_saving = g_get_home_dir();

	mwin = g_new0(MainWindow, 1);
	mwin->gxml = glade_xml_new (GLADE_FILE, NULL, NULL);
	
	/* This is important */
	glade_xml_signal_autoconnect (mwin->gxml);
	
	mwin->window =
		(GtkWindow*)glade_xml_get_widget(mwin->gxml, "window1");
	
	mwin->aboutdlg =
		(GtkAboutDialog*)glade_xml_get_widget(mwin->gxml, "aboutdialog");

	mwin->tbr_new =
		(GtkToolButton*)glade_xml_get_widget(mwin->gxml, "TBNew");
	mwin->tbr_open =
		(GtkToolButton*)glade_xml_get_widget(mwin->gxml, "TBOpen");
	mwin->tbr_save =
		(GtkToolButton*)glade_xml_get_widget(mwin->gxml, "TBSave");
	
	mwin->btn_ok =
		(GtkButton*)glade_xml_get_widget(mwin->gxml, "btn_OK");
	mwin->btn_apply =
		(GtkButton*)glade_xml_get_widget(mwin->gxml, "btn_Apply");
	mwin->btn_undo =
		(GtkButton*)glade_xml_get_widget(mwin->gxml, "btn_Undo");

	mwin->treeview =
		(GtkTreeView*)glade_xml_get_widget(mwin->gxml, "treeview");
	mwin->progressbar =
		(GtkProgressBar*)glade_xml_get_widget(mwin->gxml, "progressbar");

	
	// page 1
	mwin->p1_entry_FilePathName =
		(GtkEntry*)glade_xml_get_widget(mwin->gxml, "page1_entry_FilePathName");
	mwin->p1_btn_filechooser =
		(GtkFileChooserButton*)glade_xml_get_widget(mwin->gxml, "page1_btn_filechooser");
	mwin->p1_image =
		(GtkImage*)glade_xml_get_widget(mwin->gxml, "page1_image");
	
	// page 2
	mwin->p2_textview =
		(GtkTextView*)glade_xml_get_widget(mwin->gxml, "page2_textview");
	mwin->p2_entry_text =
		(GtkEntry*)glade_xml_get_widget(mwin->gxml, "page2_entry_text");

	// page 3
	mwin->p3_radiobutton1 =
		(GtkRadioButton*)glade_xml_get_widget(mwin->gxml, "page3_rediobutton1");
	mwin->p3_radiobutton2 =
		(GtkRadioButton*)glade_xml_get_widget(mwin->gxml, "page3_rediobutton2");
	mwin->p3_radiobutton3 =
		(GtkRadioButton*)glade_xml_get_widget(mwin->gxml, "page3_rediobutton3");

	mwin->p3_checkbutton1 =
		(GtkCheckButton*)glade_xml_get_widget(mwin->gxml, "page3_checkbutton1");
	mwin->p3_checkbutton2 =
		(GtkCheckButton*)glade_xml_get_widget(mwin->gxml, "page3_checkbutton2");
	mwin->p3_combobox = 
		(GtkComboBox*)glade_xml_get_widget(mwin->gxml, "page3_combobox1");
	mwin->p3_comboboxentry = 
		(GtkComboBoxEntry*)glade_xml_get_widget(mwin->gxml, "page3_comboboxentry1");
	mwin->p3_hscale = 
		(GtkHScale*)glade_xml_get_widget(mwin->gxml, "page3_hscale1");
	mwin->p3_vscale = 
		(GtkVScale*)glade_xml_get_widget(mwin->gxml, "page3_vscale1");
	
	/* connect the signals in the interface */
	g_signal_connect(G_OBJECT(mwin->btn_ok), "clicked",
					 G_CALLBACK(on_btn_OK_clicked), NULL);
	g_signal_connect(G_OBJECT(mwin->btn_apply), "clicked",
					 G_CALLBACK(on_btn_Apply_clicked), NULL);
	g_signal_connect(G_OBJECT(mwin->btn_undo), "clicked",
					 G_CALLBACK(on_btn_Undo_clicked), NULL);

	g_signal_connect(G_OBJECT(mwin->tbr_new), "clicked",
					 G_CALLBACK(on_New_clicked), NULL);
	g_signal_connect(G_OBJECT(mwin->tbr_open), "clicked",
					 G_CALLBACK(on_Open_clicked), NULL);
	g_signal_connect(G_OBJECT(mwin->tbr_save), "clicked",
					 G_CALLBACK(on_Save_clicked), NULL);

	g_signal_connect(G_OBJECT(mwin->p1_btn_filechooser), "file-set",
					 G_CALLBACK(on_page1_btn_filechooser_file_set), NULL);
	
	// tree
	tree_view_init();
	/* Setup the selection handler */
	GtkTreeSelection *select;
	select = gtk_tree_view_get_selection (GTK_TREE_VIEW (mwin->treeview));
	gtk_tree_selection_set_mode (select, GTK_SELECTION_SINGLE);
	g_signal_connect (G_OBJECT (select), "changed",
					  G_CALLBACK (on_treeview_selection_changed),
					  NULL);

	// popup menu, Connecting the popup signal handler.

    /* connect our handler which will popup the menu */
	GtkMenu *menu =
		(GtkMenu*)glade_xml_get_widget(mwin->gxml, "popmenu");
    g_signal_connect_swapped (mwin->window, "button_press_event",
							  G_CALLBACK (popup_handler_window), menu);

	return mwin->window;
}





void
on_menu_help_about_activate(GtkWidget* w, gpointer data)
{
	gtk_dialog_run(GTK_DIALOG(mwin->aboutdlg));
	gtk_widget_hide((GtkWidget*)mwin->aboutdlg);
}


// ToolButton Callback
void
on_New_clicked(GtkWidget* w, gpointer user_data)
{
	printf("func cb New\n");
	
}


void
on_Open_clicked(GtkWidget* w, gpointer user_data)
{
	printf("func cb Open\n");
	
	GtkWidget *dialog;
	dialog = gtk_file_chooser_dialog_new("打开文件",
										 mwin->window,
										 GTK_FILE_CHOOSER_ACTION_OPEN,
										 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
										 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
										 NULL);

	// 处理打开路径
	if (user_edited_a_new_document)
	{
		gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER (dialog),
											default_folder_for_opening);
	}
	else
	{	
		gtk_file_chooser_set_filename(GTK_FILE_CHOOSER (dialog),
									  g_path_get_dirname(filename_for_existing_document));
									  //filename_for_existing_document);
	}