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));
}
}
static void
gv_rotate_tool_button_press(GvTool *r_tool, GdkEventButton *event)
{
GvRotateTool *tool = GV_ROTATE_TOOL(r_tool);
if( event->state & (GDK_CONTROL_MASK|GDK_SHIFT_MASK) )
return;
/* -------------------------------------------------------------------- */
/* Have we selected an active control point on the scale/rotate */
/* dohickey? */
/* -------------------------------------------------------------------- */
if( tool->rrmode == RRMODE_DISPLAY && tool->shape_id != -1 )
{
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_head.x, &tool->v_head.y);
/*
** Is this location a hit on an arrow head?
*/
tool->rrmode =
gv_rotate_tool_classify_hit( tool, tool->v_head.x, tool->v_head.y );
/*
** Copy the original state of this shape, and disable undo till we are
** done.
*/
if( tool->rrmode != RRMODE_DISPLAY )
{
if( event->button != 1 )
tool->rrmode = RRMODE_ROTATESCALE;
tool->original = gv_shape_copy(
gv_shapes_get_shape( tool->layer->data, tool->shape_id ));
gv_undo_close();
gv_undo_disable();
}
}
/* -------------------------------------------------------------------- */
/* Are we selecting a shape? Note, currently we cannot clear */
/* our selection in resize/rotate mode - should we be able to? */
/* -------------------------------------------------------------------- */
if (event->button == 1 && tool->rrmode == RRMODE_DISPLAY )
{
int shape_id;
if (!gv_rotate_tool_configure(tool)) return;
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 rotatable? */
shape = gv_shapes_get_shape( tool->layer->data, shape_id );
if( TRUE )
{
gv_shape_layer_clear_selection(
GV_SHAPE_LAYER(tool->layer));
gv_shape_layer_select_shape(
GV_SHAPE_LAYER(tool->layer), shape_id);
tool->shape_id = shape_id;
gv_view_area_queue_draw(GV_TOOL(tool)->view);
}
}
return;
}
}
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;
}
