121 lines
2.0 KiB
C++
121 lines
2.0 KiB
C++
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#include <gtkmm/label.h>
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#include "pbd/xml++.h"
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#include "canvas/text.h"
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#include "canvas/canvas.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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Text::Text (Group* parent)
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: Item (parent)
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, _font_description (0)
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, _color (0x000000ff)
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, _alignment (Pango::ALIGN_LEFT)
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{
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}
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void
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Text::set (string const & text)
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{
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begin_change ();
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_text = text;
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_bounding_box_dirty = true;
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end_change ();
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}
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void
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Text::compute_bounding_box () const
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{
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if (!_canvas || !_canvas->context ()) {
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_bounding_box = boost::optional<Rect> ();
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_bounding_box_dirty = false;
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return;
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}
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Pango::Rectangle const r = layout (_canvas->context())->get_ink_extents ();
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_bounding_box = Rect (
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r.get_x() / Pango::SCALE,
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r.get_y() / Pango::SCALE,
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(r.get_x() + r.get_width()) / Pango::SCALE,
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(r.get_y() + r.get_height()) / Pango::SCALE
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);
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_bounding_box_dirty = false;
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}
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Glib::RefPtr<Pango::Layout>
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Text::layout (Cairo::RefPtr<Cairo::Context> context) const
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{
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Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
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layout->set_text (_text);
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if (_font_description) {
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layout->set_font_description (*_font_description);
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}
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layout->set_alignment (_alignment);
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return layout;
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}
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void
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Text::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) const
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{
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set_source_rgba (context, _color);
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layout (context)->show_in_cairo_context (context);
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}
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XMLNode *
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Text::get_state () const
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{
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XMLNode* node = new XMLNode ("Text");
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#ifdef CANVAS_DEBUG
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if (!name.empty ()) {
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node->add_property ("name", name);
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}
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#endif
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return node;
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}
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void
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Text::set_state (XMLNode const * /*node*/)
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{
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/* XXX */
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}
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void
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Text::set_alignment (Pango::Alignment alignment)
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{
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begin_change ();
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_alignment = alignment;
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_bounding_box_dirty = true;
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end_change ();
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}
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void
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Text::set_font_description (Pango::FontDescription* font_description)
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{
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begin_change ();
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_font_description = font_description;
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_bounding_box_dirty = true;
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end_change ();
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}
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void
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Text::set_color (Color color)
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{
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begin_change ();
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_color = color;
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end_change ();
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}
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