From 489a21b927c312fc09ad6eea4c98e596f29cec2b Mon Sep 17 00:00:00 2001
From: Benjamin Franzke <benjaminfranzke@googlemail.com>
Date: Fri, 25 May 2012 08:31:00 +0200
Subject: cvg: Replace gauss button with a GtkComboxBox

---
 cvg.c  | 39 +++++++++++++++++++--------------------
 cvg.ui | 16 ++++++++--------
 2 files changed, 27 insertions(+), 28 deletions(-)

diff --git a/cvg.c b/cvg.c
index da2062b..78f3c96 100644
--- a/cvg.c
+++ b/cvg.c
@@ -7,7 +7,6 @@
 struct cvg {
 	GtkWidget *drawing_area1;
 	GtkWidget *drawing_area2;
-	GtkButton *gauss_btn;
 	GtkButton *open_btn;
 	CvCapture *capture;
 	IplImage *image;
@@ -170,12 +169,6 @@ key_event(GtkWidget *widget, GdkEventKey *event, gpointer userdata)
 	switch (event->type) {
 	case GDK_KEY_RELEASE:
 		switch (event->keyval) {
-		case GDK_KEY_g:
-			g_signal_emit_by_name(cvg->gauss_btn, "released", NULL);
-			if (cvg->last_press == event->keyval)
-				g_signal_emit_by_name(cvg->gauss_btn, "clicked",
-						      NULL);
-			break;
 		case GDK_KEY_o:
 			g_signal_emit_by_name(cvg->open_btn, "released", NULL);
 			if (cvg->last_press == event->keyval)
@@ -187,9 +180,6 @@ key_event(GtkWidget *widget, GdkEventKey *event, gpointer userdata)
 	case GDK_KEY_PRESS:
 		cvg->last_press = event->keyval;
 		switch (event->keyval) {
-		case GDK_KEY_g:
-			g_signal_emit_by_name(cvg->gauss_btn, "pressed", NULL);
-			break;
 		case GDK_KEY_o:
 			g_signal_emit_by_name(cvg->open_btn, "pressed", NULL);
 			break;
@@ -264,15 +254,6 @@ none_filter(struct cvg *cvg, IplImage *image)
 	return NULL;
 }
 
-void
-on_gauss_button_click(GtkButton *button, gpointer userdata)
-{
-	struct cvg *cvg = userdata;
-
-	cvg->filter = gauss_filter;
-	update_right_drawing_area(cvg);
-}
-
 void
 destroy(GtkWidget *widget, gpointer userdata)
 {
@@ -288,12 +269,29 @@ find_button(GtkWidget *widget, gpointer data)
 		*p = GTK_BUTTON(widget);
 }
 
+void
+method_set(GtkComboBox *widget, gpointer userdata)
+{
+	struct cvg *cvg = userdata;
+	gchar *text;
+
+	text = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(widget));
+	if (text == NULL)
+		return;
+	if (strcmp(text, "Gauss") == 0)
+		cvg->filter = gauss_filter;
+	else if (strcmp(text, "None") == 0)
+		cvg->filter = none_filter;
+	update_right_drawing_area(cvg);
+}
+
 int
 main(int argc, char *argv[])
 {
 	struct cvg cvg;
 	GtkBuilder *builder;
 	GObject *file_chooser;
+	GObject *comboxbox;
 	gchar *path, *file;
 	int index = 0;
 
@@ -330,7 +328,6 @@ main(int argc, char *argv[])
 							      "drawingarea1"));
 	cvg.drawing_area2 = GTK_WIDGET(gtk_builder_get_object(builder,
 							      "drawingarea2"));
-	cvg.gauss_btn = GTK_BUTTON(gtk_builder_get_object(builder, "gauss"));
 	file_chooser = gtk_builder_get_object(builder, "file-chooser");
 	gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(file_chooser),
 					    g_get_current_dir());
@@ -339,6 +336,8 @@ main(int argc, char *argv[])
 	 */
 	gtk_container_forall(GTK_CONTAINER(file_chooser),
 			     find_button, &cvg.open_btn);
+	combobox = gtk_builder_get_object(builder, "comboboxtext1");
+	gtk_combo_box_set_active(GTK_COMBO_BOX(combobox), 0);
 
 	cvg.idle_source = g_idle_add(capture, &cvg);
 	cvg.filter = none_filter;
diff --git a/cvg.ui b/cvg.ui
index 302711d..15c4e8b 100644
--- a/cvg.ui
+++ b/cvg.ui
@@ -76,15 +76,15 @@
           </packing>
         </child>
         <child>
-          <object class="GtkButton" id="gauss">
-            <property name="label" translatable="yes">Gauss-Filter</property>
-            <property name="use_action_appearance">False</property>
+          <object class="GtkComboBoxText" id="comboboxtext1">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
-            <property name="receives_default">True</property>
-            <property name="hexpand">True</property>
-            <property name="use_action_appearance">False</property>
-            <signal name="clicked" handler="on_gauss_button_click" swapped="no"/>
+            <property name="can_focus">False</property>
+            <property name="entry_text_column">0</property>
+            <items>
+              <item>None</item>
+              <item>Gauss</item>
+            </items>
+            <signal name="changed" handler="method_set" swapped="no"/>
           </object>
           <packing>
             <property name="left_attach">1</property>
-- 
cgit