#include "canvas/text.h"
#include "canvas/canvas.h"
#include "canvas/utils.h"
+#include "canvas/colors.h"
using namespace std;
using namespace ArdourCanvas;
-Text::Text (Group* parent)
- : Item (parent)
+Text::Text (Canvas* c)
+ : Item (c)
, _color (0x000000ff)
, _font_description (0)
, _alignment (Pango::ALIGN_LEFT)
, _need_redraw (false)
, _clamped_width (COORD_MAX)
{
+ _outline = false;
+}
+Text::Text (Item* parent)
+ : Item (parent)
+ , _color (0x000000ff)
+ , _font_description (0)
+ , _alignment (Pango::ALIGN_LEFT)
+ , _width (0)
+ , _height (0)
+ , _need_redraw (false)
+ , _clamped_width (COORD_MAX)
+{
+ _outline = false;
}
Text::~Text ()
void
Text::redraw (Cairo::RefPtr<Cairo::Context> context) const
{
+ if (_text.empty()) {
+ return;
+ }
+
+ Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
+
+ _redraw (layout);
+}
+
+void
+Text::redraw (Glib::RefPtr<Pango::Context> context) const
+{
+ if (_text.empty()) {
+ return;
+ }
+
Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
+ _redraw (layout);
+}
+void
+Text::_redraw (Glib::RefPtr<Pango::Layout> layout) const
+{
layout->set_text (_text);
if (_font_description) {
}
layout->set_alignment (_alignment);
-
- Pango::Rectangle ink_rect = layout->get_ink_extents();
-
- _origin.x = ink_rect.get_x() / Pango::SCALE;
- _origin.y = ink_rect.get_y() / Pango::SCALE;
- _width = _origin.x + (ink_rect.get_width() / Pango::SCALE);
- _height = _origin.y + (ink_rect.get_height() / Pango::SCALE);
-
+ int w;
+ int h;
+
+ layout->get_pixel_size (w, h);
+
+ _width = w;
+ _height = h;
+
_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, _width, _height);
Cairo::RefPtr<Cairo::Context> img_context = Cairo::Context::create (_image);
/* and draw, in the appropriate color of course */
- set_source_rgba (img_context, _color);
- layout->show_in_cairo_context (img_context);
+ if (_outline) {
+ set_source_rgba (img_context, _outline_color);
+ layout->update_from_cairo_context (img_context);
+ pango_cairo_layout_path (img_context->cobj(), layout->gobj());
+ img_context->stroke_preserve ();
+ set_source_rgba (img_context, _color);
+ img_context->fill ();
+ } else {
+ set_source_rgba (img_context, _color);
+ layout->show_in_cairo_context (img_context);
+ }
/* text has now been rendered in _image and is ready for blit in
* ::render
}
void
-Text::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) const
+Text::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
{
if (_text.empty()) {
return;
}
+ Rect self = item_to_window (Rect (0, 0, min (_clamped_width, (double)_image->get_width ()), _image->get_height ()));
+ boost::optional<Rect> i = self.intersection (area);
+
+ if (!i) {
+ return;
+ }
+
if (_need_redraw) {
redraw (context);
}
- Rect self = item_to_window (Rect (0, 0, min (_clamped_width, _width), _height));
- context->rectangle (self.x0, self.y0, self.width(), self.height());
+ Rect intersection (i.get());
+
+ context->rectangle (intersection.x0, intersection.y0, intersection.width(), intersection.height());
context->set_source (_image, self.x0, self.y0);
context->fill ();
}
void
Text::clamp_width (double w)
{
+ begin_change ();
_clamped_width = w;
+ _bounding_box_dirty = true;
+ end_change ();
}
void
return;
}
- PangoContext* _pc = gdk_pango_context_get ();
- Glib::RefPtr<Pango::Context> context = Glib::wrap (_pc); // context now owns _pc and will free it
- Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
-
- layout->set_text (_text);
- if (_font_description) {
- layout->set_font_description (*_font_description);
+ if (_bounding_box_dirty) {
+ if (_need_redraw || !_image) {
+ Glib::RefPtr<Pango::Context> context = Glib::wrap (gdk_pango_context_get()); // context now owns C object and will free it
+ redraw (context);
+ }
+ _bounding_box = Rect (0, 0, min (_clamped_width, (double) _image->get_width()), _image->get_height());
+ _bounding_box_dirty = false;
}
- layout->set_alignment (_alignment);
- Pango::Rectangle const r = layout->get_ink_extents ();
-
- _bounding_box = Rect (
- r.get_x() / Pango::SCALE,
- r.get_y() / Pango::SCALE,
- (r.get_x() + r.get_width()) / Pango::SCALE,
- (r.get_y() + r.get_height()) / Pango::SCALE
- );
-
- _bounding_box_dirty = false;
}
void
begin_change ();
_color = color;
+ if (_outline) {
+ set_outline_color (contrasting_text_color (_color));
+ }
_need_redraw = true;
end_change ();