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inspector: Use GtkWidget::pick when picking widgets

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Timm Bäder 2017-06-26 11:48:33 +02:00 committed by Matthias Clasen
parent f9f6f3027d
commit 5fbe26f396
1 changed files with 32 additions and 123 deletions
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151
gtk/inspector/inspect-button.c
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@ -31,124 +31,11 @@
#include "gtkmain.h"
#include "gtkinvisible.h"
typedef struct
{
gint x;
gint y;
gboolean found;
gboolean first;
GtkWidget *res_widget;
} FindWidgetData;
static void
find_widget (GtkWidget *widget,
FindWidgetData *data)
{
GtkAllocation new_allocation;
gint x_offset = 0;
gint y_offset = 0;
GtkWidget *child;
gtk_widget_get_allocation (widget, &new_allocation);
if (data->found || !gtk_widget_get_mapped (widget))
return;
/* Note that in the following code, we only count the
* position as being inside a WINDOW widget if it is inside
* widget->window; points that are outside of widget->window
* but within the allocation are not counted. This is consistent
* with the way we highlight drag targets.
*/
if (gtk_widget_get_has_window (widget))
{
new_allocation.x = 0;
new_allocation.y = 0;
}
if (gtk_widget_get_parent (widget) && !data->first)
{
GdkWindow *window;
window = gtk_widget_get_window (widget);
while (window != gtk_widget_get_window (gtk_widget_get_parent (widget)))
{
gint tx, ty, twidth, theight;
if (window == NULL)
return;
twidth = gdk_window_get_width (window);
theight = gdk_window_get_height (window);
if (new_allocation.x < 0)
{
new_allocation.width += new_allocation.x;
new_allocation.x = 0;
}
if (new_allocation.y < 0)
{
new_allocation.height += new_allocation.y;
new_allocation.y = 0;
}
if (new_allocation.x + new_allocation.width > twidth)
new_allocation.width = twidth - new_allocation.x;
if (new_allocation.y + new_allocation.height > theight)
new_allocation.height = theight - new_allocation.y;
gdk_window_get_position (window, &tx, &ty);
new_allocation.x += tx;
x_offset += tx;
new_allocation.y += ty;
y_offset += ty;
window = gdk_window_get_parent (window);
}
}
if ((data->x >= new_allocation.x) && (data->y >= new_allocation.y) &&
(data->x < new_allocation.x + new_allocation.width) &&
(data->y < new_allocation.y + new_allocation.height))
{
FindWidgetData new_data = *data;
/* First, check if the drag is in a valid drop site in
* one of our children
*/
new_data.x -= x_offset;
new_data.y -= y_offset;
new_data.found = FALSE;
new_data.first = FALSE;
for (child = gtk_widget_get_first_child (widget);
child != NULL;
child = gtk_widget_get_next_sibling (child))
{
find_widget (child, &new_data);
}
data->found = new_data.found;
if (data->found)
data->res_widget = new_data.res_widget;
/* If not, and this widget is registered as a drop site, check to
* emit "drag_motion" to check if we are actually in
* a drop site.
*/
if (!data->found)
{
data->found = TRUE;
data->res_widget = widget;
}
}
}
static GtkWidget *
find_widget_at_pointer (GdkDevice *device)
{
GtkWidget *widget = NULL;
GdkWindow *pointer_window;
gint x, y;
FindWidgetData data;
pointer_window = gdk_device_get_window_at_position (device, NULL, NULL);
@ -158,23 +45,45 @@ find_widget_at_pointer (GdkDevice *device)
gdk_window_get_user_data (pointer_window, &widget_ptr);
widget = widget_ptr;
if (!GTK_IS_WINDOW (widget))
{
while (TRUE)
{
GdkWindow *parent = gdk_window_get_parent (pointer_window);
if (!parent)
break;
pointer_window = parent;
gdk_window_get_user_data (pointer_window, &widget_ptr);
widget = widget_ptr;
if (GTK_IS_WINDOW (widget))
break;
}
}
}
if (widget)
{
gdk_window_get_device_position (gtk_widget_get_window (widget),
double x, y;
gdk_window_get_device_position_double (gtk_widget_get_window (widget),
device, &x, &y, NULL);
data.x = x;
data.y = y;
data.found = FALSE;
data.first = TRUE;
while (widget)
{
GtkWidget *w;
find_widget (widget, &data);
if (data.found)
return data.res_widget;
w = GTK_WIDGET_GET_CLASS (widget)->pick (widget, x, y, &x, &y);
if (!w)
return widget;
widget = w;
}
}
return NULL;