AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity

drag: Make API offsets based

Browse Source 
It is generally more useful to get offsets right away,
than having to calculate those from the start point.
This commit is contained in:
Carlos Garnacho 2014-03-25 13:22:51 +01:00
parent 6cd0e733f5
commit 55683c075c
2 changed files with 26 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
gtk/gtkgesturedrag.c
View File

@ -48,9 +48,15 @@ gtk_gesture_drag_begin (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureDragPrivate *priv;
GdkEventSequence *current;
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
priv = gtk_gesture_drag_get_instance_private (GTK_GESTURE_DRAG (gesture));
gtk_gesture_get_point (gesture, sequence, &priv->start_x, &priv->start_y);
gtk_gesture_get_point (gesture, current, &priv->start_x, &priv->start_y);
priv->last_x = priv->start_x;
priv->last_y = priv->start_y;
g_signal_emit (gesture, signals[DRAG_BEGIN], 0, priv->start_x, priv->start_y);
}
@ -74,10 +80,13 @@ gtk_gesture_drag_end (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureDragPrivate *priv;
GdkEventSequence *current;
gdouble x, y;
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
priv = gtk_gesture_drag_get_instance_private (GTK_GESTURE_DRAG (gesture));
gtk_gesture_get_point (gesture, sequence, &priv->last_x, &priv->last_y);
gtk_gesture_get_point (gesture, current, &priv->last_x, &priv->last_y);
x = priv->last_x - priv->start_x;
y = priv->last_y - priv->start_y;
@ -155,8 +164,8 @@ gtk_gesture_drag_new (GtkWidget *widget)
**/
gboolean
gtk_gesture_drag_get_start_point (GtkGestureDrag *gesture,
gint *x,
gint *y)
gdouble *x,
gdouble *y)
{
GtkGestureDragPrivate *priv;
@ -175,10 +184,10 @@ gtk_gesture_drag_get_start_point (GtkGestureDrag *gesture,
}
/**
* gtk_gesture_drag_get_current_point:
* gtk_gesture_drag_get_offset:
* @gesture: a #GtkGesture
* @x: X coordinate for the current point
* @y: Y coordinate for the current point
* @x: X offset for the current point
* @y: Y offset for the current point
*
* If the @gesture is active, this function returns %TRUE and
* fills in @x and @y with the coordinates of the current point,
@ -189,9 +198,9 @@ gtk_gesture_drag_get_start_point (GtkGestureDrag *gesture,
* Since: 3.14
**/
gboolean
gtk_gesture_drag_get_current_point (GtkGestureDrag *gesture,
gint *x,
gint *y)
gtk_gesture_drag_get_offset (GtkGestureDrag *gesture,
gdouble *x,
gdouble *y)
{
GtkGestureDragPrivate *priv;
@ -201,10 +210,10 @@ gtk_gesture_drag_get_current_point (GtkGestureDrag *gesture,
priv = gtk_gesture_drag_get_instance_private (gesture);
if (x)
*x = priv->last_x;
*x = priv->last_x - priv->start_x;
if (y)
*y = priv->last_y;
*y = priv->last_y - priv->start_y;
return TRUE;
}

10
gtk/gtkgesturedrag.h
View File

@ -68,12 +68,12 @@ GtkGesture * gtk_gesture_drag_new (GtkWidget *widget);
GDK_AVAILABLE_IN_3_14
gboolean gtk_gesture_drag_get_start_point (GtkGestureDrag *gesture,
gint *x,
gint *y);
gdouble *x,
gdouble *y);
GDK_AVAILABLE_IN_3_14
gboolean gtk_gesture_drag_get_current_point (GtkGestureDrag *gesture,
gint *x,
gint *y);
gboolean gtk_gesture_drag_get_offset (GtkGestureDrag *gesture,
gdouble *x,
gdouble *y);
G_END_DECLS