C++ (Cpp) uni_dragger_button_releaseの例

コード例 #1

ファイル: uni-dragger.c プロジェクト: mcsf/Viewnior

gboolean
uni_dragger_motion_notify (UniDragger * tool, GdkEventMotion * ev)
{
    if (tool->pressed)
        tool->dragging = TRUE;
    else
    	return FALSE;

    tool->drag_ofs_x = ev->x;
    tool->drag_ofs_y = ev->y;

    int dx, dy;
    uni_dragger_get_drag_delta (tool, &dx, &dy);
    if (abs (dx) < 1 && abs (dy) < 1)
        return FALSE;
        
    if ( pow(dx, 2) + pow(dy, 2) > 7 && UNI_IMAGE_VIEW(tool->view)->pixbuf != NULL && 
    		UNI_IMAGE_VIEW(tool->view)->vadj->upper <= UNI_IMAGE_VIEW(tool->view)->vadj->page_size && 
    		UNI_IMAGE_VIEW(tool->view)->hadj->upper <= UNI_IMAGE_VIEW(tool->view)->hadj->page_size ) 
    {
		uni_dragger_button_release (tool, (GdkEventButton*)ev);
    	gtk_drag_begin (GTK_WIDGET(tool->view),
                gtk_target_list_new(target_table, G_N_ELEMENTS(target_table)),
                GDK_ACTION_COPY,
                1,
                (GdkEvent*)ev);
		return TRUE;
    }

    GdkRectangle viewport;
    uni_image_view_get_viewport (UNI_IMAGE_VIEW (tool->view), &viewport);

    int offset_x = viewport.x + dx;
    int offset_y = viewport.y + dy;

    uni_image_view_set_offset (UNI_IMAGE_VIEW (tool->view), offset_x,
                               offset_y, FALSE);

    tool->drag_base_x = tool->drag_ofs_x;
    tool->drag_base_y = tool->drag_ofs_y;

    return TRUE;
}

コード例 #2

ファイル: uni-image-view.c プロジェクト: medicalwei/Viewnior

static int
uni_image_view_button_release (GtkWidget * widget, GdkEventButton * ev)
{
    UniImageView *view = UNI_IMAGE_VIEW (widget);
    return uni_dragger_button_release (UNI_DRAGGER(view->tool), ev);
}