Re: problem finding the position of a button in the gtk dialog ( sample code inside )
On Wed, 2008-05-07 at 11:33 +0530, chirag juneja wrote:
approach i am using is :
i will find the distance of the button from its parent, and then its
parent's distance form its parent .. and so on, till i get toplevel
window.
then i am adding the decoration's height, border's width and distance
of top level window from origin of root window(0,0).
That's a lot of overkill :) You can simply do
void
get_absolute_position (GtkWidget *widget, int *ret_x, int *ret_y)
{
GdkWindow *parent;
int parent_x, parent_y;
parent = gtk_widget_get_parent_window (widget);
gdk_window_get_origin (parent, parent_x, parent_y);
*ret_x = parent_x + widget-allocation.x;
*ret_y = parent_y + widget-allocation.y;
}
Federico
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problem finding the position of a button in the gtk dialog ( sample code inside )
I am trying to find the position of a button in a gtk dialog.
but getting some strange results..
approach i am using is :
i will find the distance of the button from its parent, and then its
parent's distance form its parent .. and so on, till i get toplevel window.
then i am adding the decoration's height, border's width and distance of top
level window from origin of root window(0,0).
i am getting same (x,y) pair for the each level of iteration :(.
sample code i wrote is attached with this mail...
It will be great if someone can point out the mistake or can tell the
correct code for this.
code is :
/*
call as :gcc `pkg-config --cflags --libs gtk+-2.0`
codename.c
./a.out
then press button1 in the
dialog.
*/
#include gtk/gtk.h
gboolean GtkWidgetGetPos(GtkWidget *widget, int *x, int *y)
{
printf( entered GtkWidgetGetPos\n);
if(!widget)
return FALSE; //return
false;
if(GTK_IS_WINDOW(widget))
{
int win_x, win_y;
gtk_window_get_position(GTK_WINDOW(widget), win_x, win_y);
if(x)
*x = win_x;
if(y)
*y = win_y;
printf(1 widget : %p , x = %d , y = %d\n,widget,win_x,win_y);
return TRUE ; // return
true;
}
else if(GTK_WIDGET_REALIZED(widget))
{
int win_x, win_y;
gdk_window_get_position(widget-window, win_x, win_y);
if(x)
*x = win_x;
if(y)
*y = win_y;
printf(2 widget : %p , x = %d , y = %d\n,widget,win_x,win_y);
return TRUE; //return
true;
}
else
{
if(x)
*x = 0;
if(y)
*y = 0;
printf(widget : %p , x = %d , y = %d\n,widget,*x,*y);
return FALSE ; //return
false;
}
}
void GtkWidgetGetAbsolutePos(GtkWidget *widget, int *x, int *y)
{
printf( entered GtkWidgetGetAbsolutePos\n);
int myX = 0, myY = 0;
int tempX, tempY;
//find position of widget w.r.t. toplevel
window
while(widget !GTK_WIDGET_TOPLEVEL(widget))
{
tempX = 0;
tempY = 0;
GtkWidgetGetPos(widget, tempX, tempY);
printf( left GtkWidgetGetPos\n);
myX += tempX;
myY += tempY;
widget = widget-parent;
}
if (widget)
{
tempX = 0;
tempY = 0;
GtkWidgetGetPos(widget, tempX, tempY);
printf( left GtkWidgetGetPos\n);
myX += tempX;
myY += tempY;
if(GTK_WIDGET_MAPPED(widget))
{
gint win_x, win_y, win_width, win_height;
gdk_window_get_geometry(widget-window, win_x, win_y,
win_width, win_height, NULL);
GdkRectangle win_rect;
gdk_window_get_frame_extents(widget-window, win_rect);
int border_width = (win_rect.width - win_width) / 2;
int title_width = (win_rect.height - win_height) - border_width;
myX += border_width;
myY += title_width;
}
}
if (x)
*x = myX;
if (y)
*y = myY;
printf( leaving GtkWidgetGetAbsolutePos\n);
}
void iterate_container(GtkWidget *container)
{
printf( entered iterate_container\n);
GtkWidget *retVal = NULL;
GList *children = gtk_container_get_children(GTK_CONTAINER(container));
GList *current_child = NULL;
for(current_child = children; ((retVal == NULL) (current_child !=
NULL)); current_child = current_child-next)
{
gtk_widget_realize(GTK_WIDGET(current_child-data));
if(GTK_IS_BUTTON(current_child-data))
{
printf(inside button\n);
char* lbl
=(char*)gtk_button_get_label(GTK_BUTTON(current_child-data));
if(lbl)
{
int x = 0,y = 0;
printf(calling GtkWidgetGetAbsolutePos \n);
GtkWidgetGetAbsolutePos(GTK_WIDGET(current_child-data),x,y);
//
gdk_window_get_position(GTK_WIDGET(current_child-data)-window,x,y);
printf(x = %d , y = %d\n,x,y);
}
printf(leaving button\n);
}
if (GTK_IS_CONTAINER(current_child-data))
iterate_container(GTK_WIDGET(current_child-data));
}
g_list_free(children);
printf( leaving iterate_container\n);
return
;//retVal;
}
/* This is a callback function. The data arguments are
ignored
* in this example. More on callbacks below. */
static void hello( GtkWidget *widget,
gpointer data )
{
g_print (Hello World\n);
iterate_container(GTK_WIDGET(data));
}
static gboolean delete_event( GtkWidget *widget,
GdkEvent *event,
gpointer data )
{
g_print (delete event occurred\n);
return FALSE; // return false; // this will call destroy
fn...
}
static void destroy( GtkWidget *widget,
gpointer data )
{
g_print(inside... destroy);
gtk_main_quit ();
}
int main( int argc,
char *argv[] )
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *box1;
GtkWidget *label;
gtk_init (argc, argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), Hello
problem finding the position of a button in the gtk dialog ( sample code inside )
I am trying to find the position of a button in a gtk dialog.
but getting some strange results..
approach i am using is :
i will find the distance of the button from its parent, and then its
parent's distance form its parent .. and so on, till i get toplevel window.
then i am adding the decoration's height, border's width and distance of top
level window from origin of root window(0,0).
i am getting same (x,y) pair for the each level of iteration :(.
sample code i wrote is attached with this mail...
It will be great if someone can point out the mistake or can tell the
correct code for this.
code is :
/*
call as :gcc `pkg-config --cflags --libs gtk+-2.0`
codename.c
./a.out
then press button1 in the
dialog.
*/
#include gtk/gtk.h
gboolean GtkWidgetGetPos(GtkWidget *widget, int *x, int *y)
{
printf( entered GtkWidgetGetPos\n);
if(!widget)
return FALSE; //return
false;
if(GTK_IS_WINDOW(widget))
{
int win_x, win_y;
gtk_window_get_position(GTK_WINDOW(widget), win_x, win_y);
if(x)
*x = win_x;
if(y)
*y = win_y;
printf(1 widget : %p , x = %d , y = %d\n,widget,win_x,win_y);
return TRUE ; // return
true;
}
else if(GTK_WIDGET_REALIZED(widget))
{
int win_x, win_y;
gdk_window_get_position(widget-window, win_x, win_y);
if(x)
*x = win_x;
if(y)
*y = win_y;
printf(2 widget : %p , x = %d , y = %d\n,widget,win_x,win_y);
return TRUE; //return
true;
}
else
{
if(x)
*x = 0;
if(y)
*y = 0;
printf(widget : %p , x = %d , y = %d\n,widget,*x,*y);
return FALSE ; //return
false;
}
}
void GtkWidgetGetAbsolutePos(GtkWidget *widget, int *x, int *y)
{
printf( entered GtkWidgetGetAbsolutePos\n);
int myX = 0, myY = 0;
int tempX, tempY;
//find position of widget w.r.t. toplevel
window
while(widget !GTK_WIDGET_TOPLEVEL(widget))
{
tempX = 0;
tempY = 0;
GtkWidgetGetPos(widget, tempX, tempY);
printf( left GtkWidgetGetPos\n);
myX += tempX;
myY += tempY;
widget = widget-parent;
}
if (widget)
{
tempX = 0;
tempY = 0;
GtkWidgetGetPos(widget, tempX, tempY);
printf( left GtkWidgetGetPos\n);
myX += tempX;
myY += tempY;
if(GTK_WIDGET_MAPPED(widget))
{
gint win_x, win_y, win_width, win_height;
gdk_window_get_geometry(widget-window, win_x, win_y,
win_width, win_height, NULL);
GdkRectangle win_rect;
gdk_window_get_frame_extents(widget-window, win_rect);
//We assume that the bottom border is equivalent to the side
borders.
int border_width = (win_rect.width - win_width) / 2;
int title_width = (win_rect.height - win_height) - border_width;
myX += border_width;
myY += title_width;
}
}
if (x)
*x = myX;
if (y)
*y = myY;
printf( leaving GtkWidgetGetAbsolutePos\n);
}
void iterate_container(GtkWidget *container)
{
printf( entered iterate_container\n);
GtkWidget *retVal = NULL;
GList *children = gtk_container_get_children(GTK_CONTAINER(container));
GList *current_child = NULL;
for(current_child = children; ((retVal == NULL) (current_child !=
NULL)); current_child = current_child-next)
{
gtk_widget_realize(GTK_WIDGET(current_child-data));
if(GTK_IS_BUTTON(current_child-data))
{
printf(inside button\n);
char* lbl
=(char*)gtk_button_get_label(GTK_BUTTON(current_child-data));
if(lbl)
{
int x = 0,y = 0;
printf(calling GtkWidgetGetAbsolutePos \n);
GtkWidgetGetAbsolutePos(GTK_WIDGET(current_child-data),x,y);
//
gdk_window_get_position(GTK_WIDGET(current_child-data)-window,x,y);
printf(x = %d , y = %d\n,x,y);
}
printf(leaving button\n);
}
if (GTK_IS_CONTAINER(current_child-data))
iterate_container(GTK_WIDGET(current_child-data));
}
g_list_free(children);
printf( leaving iterate_container\n);
return
;//retVal;
}
/* This is a callback function. The data arguments are
ignored
* in this example. More on callbacks below. */
static void hello( GtkWidget *widget,
gpointer data )
{
g_print (Hello World\n);
iterate_container(GTK_WIDGET(data));
}
static gboolean delete_event( GtkWidget *widget,
GdkEvent *event,
gpointer data )
{
g_print (delete event occurred\n);
//return TRUE; // return
true;
return FALSE; // return false; // this will call destroy
fn...
}
static void destroy( GtkWidget *widget,
gpointer data )
{
g_print(inside... destroy);
gtk_main_quit ();
}
int main( int argc,
char *argv[] )
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *box1;
GtkWidget *label;
