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 gboolean
gv_rect_tool_button_press(GvTool *r_tool, GdkEventButton *event)
{
GvRectTool *tool = GV_RECT_TOOL(r_tool);
if (event->button == 1 && !tool->drawing )
{
GvNodeInfo edit_node;
int before, shape_id, is_rectangle = FALSE;
if (!gv_rect_tool_configure(tool)) return FALSE;
if (gv_shape_layer_pick_shape(GV_SHAPE_LAYER(tool->layer),
GV_TOOL(tool)->view,
event->x, event->y, &shape_id))
{
GvShape *shape;
/* Is the shape a rectangle? */
shape = gv_shapes_get_shape( tool->layer->data, shape_id );
if( shape != NULL
&& gv_shape_type(shape) == GVSHAPE_AREA
&& gv_shape_get_rings( shape ) == 1
&& gv_shape_get_nodes( shape, 0 ) == 5 )
{
gvgeocoord x1, y1, x2, y2;
x1 = gv_shape_get_x(shape,0,0);
y1 = gv_shape_get_y(shape,0,0);
x2 = gv_shape_get_x(shape,0,2);
y2 = gv_shape_get_y(shape,0,2);
tool->winding = 1;
is_rectangle = gv_shape_get_x(shape,0,1) == x1
&& gv_shape_get_y(shape,0,1) == y2
&& gv_shape_get_x(shape,0,3) == x2
&& gv_shape_get_y(shape,0,3) == y1
&& gv_shape_get_x(shape,0,4) == x1
&& gv_shape_get_y(shape,0,4) == y1;
if( !is_rectangle )
{
tool->winding = 0;
is_rectangle = gv_shape_get_x(shape,0,1) == x2
&& gv_shape_get_y(shape,0,1) == y1
&& gv_shape_get_x(shape,0,3) == x1
&& gv_shape_get_y(shape,0,3) == y2
&& gv_shape_get_x(shape,0,4) == x1
&& gv_shape_get_y(shape,0,4) == y1;
}
if( is_rectangle )
{
gv_shape_layer_clear_selection(
GV_SHAPE_LAYER(tool->layer));
gv_shape_layer_select_shape(
GV_SHAPE_LAYER(tool->layer), shape_id);
}
}
}
/* Is the user selecting an existing rectangles edge/corner? */
if (is_rectangle
&& gv_shape_layer_pick_node(GV_SHAPE_LAYER(tool->layer),
GV_TOOL(tool)->view,
event->x, event->y, &before,
&edit_node) )
{
if( tool->winding == 0 )
{
if( before )
edit_node.node_id = 5 - edit_node.node_id;
else
edit_node.node_id = 4 - edit_node.node_id;
}
if( before && edit_node.node_id == 1 )
tool->picked = PICK_SIDE_LEFT;
else if( before && edit_node.node_id == 2 )
tool->picked = PICK_SIDE_BOTTOM;
else if( before && edit_node.node_id == 3 )
tool->picked = PICK_SIDE_RIGHT;
else if( before && edit_node.node_id == 4 )
tool->picked = PICK_SIDE_TOP;
else if( edit_node.node_id == 0 )
tool->picked = PICK_CORNER_TOPLEFT;
else if( edit_node.node_id == 1 )
tool->picked = PICK_CORNER_BOTTOMLEFT;
else if( edit_node.node_id == 2 )
tool->picked = PICK_CORNER_BOTTOMRIGHT;
else if( edit_node.node_id == 3 )
tool->picked = PICK_CORNER_TOPRIGHT;
else if( edit_node.node_id == 4 )
tool->picked = PICK_CORNER_TOPLEFT;
else
{
g_warning( "Yikes! What node is this?" );
return FALSE;
}
tool->reshaping = TRUE;
tool->shape_id = edit_node.shape_id;
/* Close down undo. A single operation describing the new
ring will be pushed to undo when drawing stops. */
gv_undo_close();
gv_undo_disable();
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);
if( gv_tool_check_bounds( GV_TOOL(tool),
tool->v_tail.x, tool->v_tail.y ) )
{
/* Start a new rect */
tool->drawing = TRUE;
tool->v_head = tool->v_tail;
}
}
return FALSE;
}
