static void
gv_point_tool_button_press(GvTool *tool, GdkEventButton *event)
{
if (event->button == 1)
{
GvVertex vertex;
if (!gv_point_tool_configure(tool)) return;
/* Get pointer location */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&vertex.x, &vertex.y);
if( !gv_tool_check_bounds( GV_TOOL(tool), vertex.x, vertex.y ) )
return;
/* Add a new point */
if( GV_IS_POINT_LAYER(GV_POINT_TOOL(tool)->layer) )
{
gv_point_layer_select_new_point(
GV_POINT_LAYER(GV_POINT_TOOL(tool)->layer),
&vertex);
}
else
{
GvShape *new_point;
new_point = gv_shape_new( GVSHAPE_POINT );
gv_shape_set_xyz( new_point, 0, 0, vertex.x, vertex.y, 0.0 );
gv_shapes_layer_select_new_shape(
GV_SHAPES_LAYER(GV_POINT_TOOL(tool)->layer),
new_point );
}
}
}
static gint gv_rotate_tool_layer_destroy( GtkObject *layer, gpointer data )
{
GvRotateTool *tool = (GvRotateTool *) data;
if( tool->layer == GV_SHAPES_LAYER(layer) )
gv_rotate_tool_set_layer( tool, NULL );
return 0;
}
static gboolean
gv_rect_tool_button_release(GvTool *r_tool, GdkEventButton *event)
{
GvRectTool *tool = GV_RECT_TOOL(r_tool);
if (event->button == 1 && tool->drawing )
{
GvShape *shape;
if (!gv_rect_tool_configure(tool)) return FALSE;
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
gv_tool_clamp_to_bounds( GV_TOOL(tool),
&tool->v_tail.x, &tool->v_tail.y );
if( tool->v_tail.x != tool->v_head.x
&& tool->v_tail.y != tool->v_head.y )
{
/* create the new rectangle */
shape = gv_shape_new( GVSHAPE_AREA );
gv_shape_add_node( shape, 0, tool->v_tail.x, tool->v_tail.y, 0 );
gv_shape_add_node( shape, 0, tool->v_tail.x, tool->v_head.y, 0 );
gv_shape_add_node( shape, 0, tool->v_head.x, tool->v_head.y, 0 );
gv_shape_add_node( shape, 0, tool->v_head.x, tool->v_tail.y, 0 );
gv_shape_add_node( shape, 0, tool->v_tail.x, tool->v_tail.y, 0 );
gv_shapes_layer_select_new_shape( GV_SHAPES_LAYER(tool->layer),
shape );
}
tool->drawing = FALSE;
return FALSE;
}
if (event->button == 1 && tool->reshaping )
{
if (!gv_rect_tool_configure(tool)) return FALSE;
/* Reopen undo. Push a memento describing the ring addition */
gv_undo_enable();
gv_undo_open();
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
gv_rect_tool_reshape( tool, tool->v_tail.x, tool->v_tail.y );
tool->reshaping = FALSE;
}
return FALSE;
}
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);
}
}
