void
gv_rotate_tool_set_layer(GvRotateTool *tool, GvShapeLayer *layer)
{
if (GV_TOOL(tool)->view == NULL)
{
g_warning("gv_rotate_tool_set_layer(): inactive tool");
return;
}
if( layer != NULL && gv_data_is_read_only( GV_DATA(layer) ) )
{
g_warning( "gv_rotate_tool_set_layer(): layer is read-only" );
return;
}
gv_rotate_tool_terminate( tool );
tool->shape_id = -1;
/* Disconnect from the previous layer (for draw) */
if (tool->layer)
{
tool->rrmode = RRMODE_DISPLAY;
/** TODO: Not sure that we need to unselect ... try to remove later */
gv_shape_layer_clear_selection(GV_SHAPE_LAYER(tool->layer));
gtk_signal_disconnect_by_data(GTK_OBJECT(tool->layer), (gpointer)tool);
gv_view_area_queue_draw(GV_TOOL(tool)->view);
}
if( layer == NULL )
tool->layer = NULL;
else
tool->layer = GV_SHAPES_LAYER(layer);
if (layer)
{
gv_view_area_set_active_layer(GV_TOOL(tool)->view, GTK_OBJECT(layer));
/* Redraw when the layer draws */
gtk_signal_connect_object_after(GTK_OBJECT(layer), "draw",
GTK_SIGNAL_FUNC(gv_rotate_tool_draw),
GTK_OBJECT(tool));
/* Recover if layer destroyed */
gtk_signal_connect(
GTK_OBJECT(layer), "destroy",
GTK_SIGNAL_FUNC(gv_rotate_tool_layer_destroy),
GTK_OBJECT(tool));
}
}
void
gv_rect_tool_set_layer(GvRectTool *tool, GvShapeLayer *layer)
{
if (GV_TOOL(tool)->view == NULL)
{
g_warning("gv_rect_tool_set_layer(): inactive tool");
return;
}
if( layer != NULL && gv_data_is_read_only( GV_DATA(layer) ) )
{
g_warning( "gv_rect_tool_set_layer(): layer is read-only" );
return;
}
/* Disconnect from the previous layer (for draw) */
if (tool->layer)
{
if (tool->drawing)
tool->drawing = FALSE;
gv_shape_layer_clear_selection(GV_SHAPE_LAYER(tool->layer));
g_signal_handlers_disconnect_matched (tool->layer, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, tool);
gv_view_area_queue_draw(GV_TOOL(tool)->view);
}
if( layer == NULL )
tool->layer = NULL;
else
tool->layer = GV_SHAPES_LAYER(layer);
if (layer)
{
gv_view_area_set_active_layer(GV_TOOL(tool)->view, G_OBJECT(layer));
/* Redraw when the layer draws */
g_signal_connect_object(layer, "draw",
G_CALLBACK(gv_rect_tool_draw),
GV_TOOL(tool), G_CONNECT_SWAPPED | G_CONNECT_AFTER);
/* recover if layer destroyed */
g_signal_connect_swapped(layer, "teardown",
G_CALLBACK(gv_rect_tool_layer_destroy),
tool);
}
}
void
gv_point_tool_set_layer(GvPointTool *tool, GvShapeLayer *layer)
{
if (GV_TOOL(tool)->view == NULL)
{
g_warning("gv_point_tool_set_layer(): inactive tool");
return;
}
if( layer != NULL
&& !GV_IS_POINT_LAYER(layer) && !GV_IS_SHAPES_LAYER(layer) )
{
g_warning( "gv_point_tool_set_layer(): not a point capable layer" );
return;
}
if( layer != NULL && gv_data_is_read_only( GV_DATA(layer) ) )
{
g_warning( "gv_point_tool_set_layer(): layer is read-only" );
return;
}
/* Disconnect from the previous layer */
if (tool->layer)
{
gv_shape_layer_clear_selection(GV_SHAPE_LAYER(tool->layer));
gv_view_area_queue_draw(GV_TOOL(tool)->view);
gtk_signal_disconnect_by_data( GTK_OBJECT(tool->layer),
GTK_OBJECT(tool) );
}
tool->layer = layer;
if (layer)
{
gv_view_area_set_active_layer(GV_TOOL(tool)->view, GTK_OBJECT(layer));
gtk_signal_connect(
GTK_OBJECT(layer), "destroy",
GTK_SIGNAL_FUNC(gv_point_tool_layer_destroy),
GTK_OBJECT(tool));
}
}