date:20070602

Re: gtk+ about dialog doesn't close

2007-06-02 Thread Yeti

On Sat, Jun 02, 2007 at 07:26:02AM +0200, John Zoidberg wrote:
 I have a problem with the gtk about dialog: When I click on the Close button
 it doesn't close.
 There seems to be no event connected to the close button clicked signal.
 And I can't add one either in Glade (v2 as well as v3).
 
 What am I supposed to add to the code so that it works?

Connect to response signal of the about dialog and if the
response id is one of
GTK_RESPONSE_CLOSE (Close button should emit this)
GTK_RESPONSE_CANCEL (but Close button actually emits this)
GTK_RESPONSE_DELETE_EVENT (closed by window manager means)
destroy/hide/whatever the dialog.

I find GtkAboutDialog a textbook example of second system
effect -- I mean an about dialog with several nested
subdialogs, at least one of them tabbed?  The complete user
interface of some applications is simplier than GtkAboutDialog.

Yeti

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Re: Clear A Pixmap

2007-06-02 Thread Yeti

On Fri, Jun 01, 2007 at 05:38:54PM -0700, nahuel9728 wrote:
 
 Thaxs Yeti for the answer but Sorry I'm not able to do it. I explain a little
 bit what im doing and i would like to do:
 main(){
 mem_map=gtk_drawing_area_new();
 gtk_signal_connect (GTK_OBJECT (mem_map), expose_event,(GtkSignalFunc)
 expose_event, NULL);
 gtk_signal_connect
 (GTK_OBJECT(mem_map),configure_event,(GtkSignalFunc)configure_event,
 NULL);
 gtk_signal_connect (GTK_OBJECT (mem_map),
 button_press_event,(GtkSignalFunc) button_press_event, NULL);
 /*A button to erase all the drawed and paint things*/
 boton = gtk_button_new_with_label (Clear and paint);
 gtk_signal_connect_object (GTK_OBJECT (boton), clicked,GTK_SIGNAL_FUNC
 (clear_and_paint),GTK_OBJECT (main_window));
 show
 }
 
 void expose_event(){
 gdk_draw_pixmap
 }
 
 void clear_and_pain(GtkWidget *widget, GdkEventExpose *event){
   /*HERE I WANNA CLEAN ALL MY DRAWED AREA*/
gtk_widget_queue_draw_area(GTK_WIDGET(mem_map),0,0,910,440);
 /*This up should clean all the area??? */
  
 /*And later draw things.*/
 draw_brush();
 }
 Any idea anyone??? Has done somthing similar

Sorry, this is a mess, I have no idea what you are doing.

However, you seem to started from the Gtk+ scribble example,
so here's a patch to scribble-simple.c that adds a Clear
button:

===
--- scribble-simple.c.orig  2007-05-02 18:27:36.0 +0200
+++ scribble-simple.c   2007-06-02 12:25:02.0 +0200
@@ -115,12 +115,21 @@
   exit (0);
 }
 
+static void
+clear(GtkWidget *widget)
+{
+gdk_draw_rectangle(pixmap, widget-style-white_gc, TRUE,
+   0, 0,
+   widget-allocation.width, widget-allocation.height);
+gtk_widget_queue_draw(widget);
+}
+
 int main( int   argc, 
   char *argv[] )
 {
   GtkWidget *window;
   GtkWidget *drawing_area;
-  GtkWidget *vbox;
+  GtkWidget *vbox, *hbox;
 
   GtkWidget *button;
 
@@ -164,16 +173,19 @@
 | GDK_POINTER_MOTION_MASK
 | GDK_POINTER_MOTION_HINT_MASK);
 
-  /* .. And a quit button */
-  button = gtk_button_new_with_label (Quit);
-  gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
-
-  g_signal_connect_swapped (G_OBJECT (button), clicked,
-   G_CALLBACK (gtk_widget_destroy),
-   G_OBJECT (window));
-  gtk_widget_show (button);
+  hbox = gtk_hbox_new(TRUE, 0);
+  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
+
+  button = gtk_button_new_with_label(Clear);
+  gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, TRUE, 0);
+  g_signal_connect_swapped(button, clicked, G_CALLBACK(clear), drawing_area);
+
+  button = gtk_button_new_with_label(Quit);
+  gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, TRUE, 0);
+  g_signal_connect_swapped(button, clicked,
+   G_CALLBACK(gtk_widget_destroy), window);
 
-  gtk_widget_show (window);
+  gtk_widget_show_all(window);
 
   gtk_main ();
 
===

Yeti

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Re: Clear A Pixmap

2007-06-02 Thread nahuel9728


Yeti.. THANK U VERY MUCH!!
Sorry for use the forum for this but...
THANK YOU for YOUR HELP! You're the best


David Nečas (Yeti)-2 wrote:
 
 On Fri, Jun 01, 2007 at 05:38:54PM -0700, nahuel9728 wrote:
 
 Thaxs Yeti for the answer but Sorry I'm not able to do it. I explain a
 little
 bit what im doing and i would like to do:
 main(){
 mem_map=gtk_drawing_area_new();
 gtk_signal_connect (GTK_OBJECT (mem_map), expose_event,(GtkSignalFunc)
 expose_event, NULL);
 gtk_signal_connect
 (GTK_OBJECT(mem_map),configure_event,(GtkSignalFunc)configure_event,
 NULL);
 gtk_signal_connect (GTK_OBJECT (mem_map),
 button_press_event,(GtkSignalFunc) button_press_event, NULL);
 /*A button to erase all the drawed and paint things*/
 boton = gtk_button_new_with_label (Clear and paint);
 gtk_signal_connect_object (GTK_OBJECT (boton), clicked,GTK_SIGNAL_FUNC
 (clear_and_paint),GTK_OBJECT (main_window));
 show
 }
 
 void expose_event(){
 gdk_draw_pixmap
 }
 
 void clear_and_pain(GtkWidget *widget, GdkEventExpose *event){
  /*HERE I WANNA CLEAN ALL MY DRAWED AREA*/
gtk_widget_queue_draw_area(GTK_WIDGET(mem_map),0,0,910,440);
 /*This up should clean all the area??? */
  
 /*And later draw things.*/
 draw_brush();
 }
 Any idea anyone??? Has done somthing similar
 
 Sorry, this is a mess, I have no idea what you are doing.
 
 However, you seem to started from the Gtk+ scribble example,
 so here's a patch to scribble-simple.c that adds a Clear
 button:
 
 ===
 --- scribble-simple.c.orig2007-05-02 18:27:36.0 +0200
 +++ scribble-simple.c 2007-06-02 12:25:02.0 +0200
 @@ -115,12 +115,21 @@
exit (0);
  }
  
 +static void
 +clear(GtkWidget *widget)
 +{
 +gdk_draw_rectangle(pixmap, widget-style-white_gc, TRUE,
 +   0, 0,
 +   widget-allocation.width,
 widget-allocation.height);
 +gtk_widget_queue_draw(widget);
 +}
 +
  int main( int   argc, 
char *argv[] )
  {
GtkWidget *window;
GtkWidget *drawing_area;
 -  GtkWidget *vbox;
 +  GtkWidget *vbox, *hbox;
  
GtkWidget *button;
  
 @@ -164,16 +173,19 @@
| GDK_POINTER_MOTION_MASK
| GDK_POINTER_MOTION_HINT_MASK);
  
 -  /* .. And a quit button */
 -  button = gtk_button_new_with_label (Quit);
 -  gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 -
 -  g_signal_connect_swapped (G_OBJECT (button), clicked,
 - G_CALLBACK (gtk_widget_destroy),
 - G_OBJECT (window));
 -  gtk_widget_show (button);
 +  hbox = gtk_hbox_new(TRUE, 0);
 +  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 +
 +  button = gtk_button_new_with_label(Clear);
 +  gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, TRUE, 0);
 +  g_signal_connect_swapped(button, clicked, G_CALLBACK(clear),
 drawing_area);
 +
 +  button = gtk_button_new_with_label(Quit);
 +  gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, TRUE, 0);
 +  g_signal_connect_swapped(button, clicked,
 +   G_CALLBACK(gtk_widget_destroy), window);
  
 -  gtk_widget_show (window);
 +  gtk_widget_show_all(window);
  
gtk_main ();
  
 ===
 
 Yeti
 
 --
 http://gwyddion.net/
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Re: gtk+ about dialog doesn't close

Re: Clear A Pixmap

Re: Clear A Pixmap

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