196 lines
3.6 KiB
C++
196 lines
3.6 KiB
C++
#include <iostream>
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#include <cairomm/context.h>
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#include "pbd/stacktrace.h"
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#include "pbd/compose.h"
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#include "canvas/rectangle.h"
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#include "canvas/debug.h"
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#include "canvas/utils.h"
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using namespace std;
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using namespace ArdourCanvas;
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Rectangle::Rectangle (Group* parent)
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: Item (parent)
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, Outline (parent)
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, Fill (parent)
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, _outline_what ((What) (LEFT | RIGHT | TOP | BOTTOM))
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{
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}
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Rectangle::Rectangle (Group* parent, Rect const & rect)
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: Item (parent)
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, Outline (parent)
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, Fill (parent)
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, _rect (rect)
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, _outline_what ((What) (LEFT | RIGHT | TOP | BOTTOM))
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{
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}
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void
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Rectangle::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) const
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{
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Rect plot = _rect;
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plot.x1 = min (plot.x1, CAIRO_MAX);
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plot.y1 = min (plot.y1, CAIRO_MAX);
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if (_fill) {
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setup_fill_context (context);
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context->rectangle (plot.x0, plot.y0, plot.width(), plot.height());
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if (!_outline) {
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context->fill ();
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} else {
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/* special/common case: outline the entire rectangle is
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* requested, so just use the same path for the fill
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* and stroke.
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*/
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if (_outline_what == What (LEFT|RIGHT|BOTTOM|TOP)) {
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context->fill_preserve();
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setup_outline_context (context);
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context->stroke ();
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} else {
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context->fill ();
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}
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}
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}
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if (_outline) {
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if (_outline_what == What (LEFT|RIGHT|BOTTOM|TOP)) {
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/* if we filled and use full outline, we are already done */
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if (!_fill) {
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context->rectangle (plot.x0, plot.y0, plot.width(), plot.height());
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setup_outline_context (context);
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context->stroke ();
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}
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} else {
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if (_outline_what & LEFT) {
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context->move_to (plot.x0, plot.y0);
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context->line_to (plot.x0, plot.y1);
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}
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if (_outline_what & BOTTOM) {
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context->move_to (plot.x0, plot.y1);
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context->line_to (plot.x1, plot.y1);
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}
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if (_outline_what & RIGHT) {
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context->move_to (plot.x1, plot.y0);
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context->line_to (plot.x1, plot.y1);
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}
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if (_outline_what & TOP) {
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context->move_to (plot.x0, plot.y0);
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context->line_to (plot.x1, plot.y0);
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}
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setup_outline_context (context);
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context->stroke ();
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}
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}
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}
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void
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Rectangle::compute_bounding_box () const
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{
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Rect r = _rect.fix ();
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_bounding_box = boost::optional<Rect> (r.expand (_outline_width / 2));
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_bounding_box_dirty = false;
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}
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void
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Rectangle::set (Rect const & r)
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{
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/* We don't update the bounding box here; it's just
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as cheap to do it when asked.
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*/
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begin_change ();
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_rect = r;
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_bounding_box_dirty = true;
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end_change ();
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DEBUG_TRACE (PBD::DEBUG::CanvasItemsDirtied, "canvas item dirty: rectangle change (set)\n");
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}
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void
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Rectangle::set_x0 (Coord x0)
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{
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begin_change ();
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_rect.x0 = x0;
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_bounding_box_dirty = true;
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end_change ();
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DEBUG_TRACE (PBD::DEBUG::CanvasItemsDirtied, "canvas item dirty: rectangle change (x0)\n");
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}
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void
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Rectangle::set_y0 (Coord y0)
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{
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begin_change ();
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_rect.y0 = y0;
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_bounding_box_dirty = true;
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end_change();
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DEBUG_TRACE (PBD::DEBUG::CanvasItemsDirtied, "canvas item dirty: rectangle change (y0)\n");
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}
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void
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Rectangle::set_x1 (Coord x1)
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{
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begin_change ();
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_rect.x1 = x1;
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_bounding_box_dirty = true;
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end_change ();
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DEBUG_TRACE (PBD::DEBUG::CanvasItemsDirtied, "canvas item dirty: rectangle change (x1)\n");
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}
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void
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Rectangle::set_y1 (Coord y1)
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{
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begin_change ();
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_rect.y1 = y1;
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_bounding_box_dirty = true;
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end_change ();
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DEBUG_TRACE (PBD::DEBUG::CanvasItemsDirtied, "canvas item dirty: rectangle change (y1)\n");
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}
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void
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Rectangle::set_outline_what (What what)
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{
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begin_change ();
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_outline_what = what;
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end_change ();
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}
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void
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Rectangle::set_outline_what (int what)
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{
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set_outline_what ((What) what);
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}
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