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authorPaul Davis <paul@linuxaudiosystems.com>2013-06-18 13:46:24 -0400
committerPaul Davis <paul@linuxaudiosystems.com>2013-06-18 13:46:24 -0400
commit691be68ac2a933920422d06ea74c91429d7a599c (patch)
tree3f21b39682601e0fae8eba785d7d26a016620e05
parent77f5f4c4bf9074d953a1653658c8f96f38ae258c (diff)
fix rect redraw problems caused by intersection requiring the usual 0.5 expansion (though consider a more general fix for this at teh group level)
-rw-r--r--libs/canvas/canvas.cc4
-rw-r--r--libs/canvas/group.cc4
-rw-r--r--libs/canvas/rectangle.cc43
-rw-r--r--libs/canvas/text.cc39
-rw-r--r--libs/canvas/wave_view.cc28
5 files changed, 54 insertions, 64 deletions
diff --git a/libs/canvas/canvas.cc b/libs/canvas/canvas.cc
index 9c49eb4a87..04929ca1af 100644
--- a/libs/canvas/canvas.cc
+++ b/libs/canvas/canvas.cc
@@ -227,7 +227,7 @@ void
Canvas::queue_draw_item_area (Item* item, Rect area)
{
ArdourCanvas::Rect canvas_area = item->item_to_canvas (area);
- // cerr << "CANVAS Invalidate " << area << " TRANSLATE AS " << canvas_area << endl;
+ // cerr << "CANVAS " << this << " for " << item->whatami() << ' ' << item->name << " invalidate " << area << " TRANSLATE AS " << canvas_area << endl;
request_redraw (canvas_area);
}
@@ -547,7 +547,7 @@ void
GtkCanvas::request_redraw (Rect const & request)
{
Rect area = canvas_to_window (request);
- // cerr << "Invalidate " << request << " TRANSLATE AS " << area << endl;
+ // cerr << this << " Invalidate " << request << " TRANSLATE AS " << area << endl;
queue_draw_area (floor (area.x0), floor (area.y0), ceil (area.x1) - floor (area.x0), ceil (area.y1) - floor (area.y0));
}
diff --git a/libs/canvas/group.cc b/libs/canvas/group.cc
index 364d9fe583..9a846dfcf2 100644
--- a/libs/canvas/group.cc
+++ b/libs/canvas/group.cc
@@ -115,8 +115,10 @@ Group::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
(*i)->name);
}
#endif
- (*i)->render (draw.get(), context);
+
+ (*i)->render (area, context);
++render_count;
+
} else {
#ifdef CANVAS_DEBUG
if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
diff --git a/libs/canvas/rectangle.cc b/libs/canvas/rectangle.cc
index 7abf13216b..6ce62b0144 100644
--- a/libs/canvas/rectangle.cc
+++ b/libs/canvas/rectangle.cc
@@ -52,19 +52,26 @@ Rectangle::Rectangle (Group* parent, Rect const & rect)
void
Rectangle::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
{
- /* Cairo goes a little (!) wrong when asked to fill/stroke rectangles that
- * extend way beyond the surface boundaries. To avoid this issue,
- * clamp what we are drawing using the absolute end of the visible
- * canvas, converting to item-space coordinates, of course.
- */
-
Rect self = item_to_window (_rect);
- boost::optional<Rect> draw = self.intersection (area);
+ boost::optional<Rect> d = self.intersection (area);
+
+ if (!d) {
+ return;
+ }
+
+ Rect draw = d.get();
+ static const double boundary = 0.5;
+
+ draw.x0 = max (self.x0, max (0.0, draw.x0 - boundary));
+ draw.x1 = min (self.x1, min (2000.0, draw.x1 + boundary));
+
+ draw.y0 = max (self.y0, max (0.0, draw.y0 - boundary));
+ draw.y1 = min (self.y1, min (2000.0, draw.y1 + boundary));
- if (_fill && draw) {
+ if (_fill) {
setup_fill_context (context);
- context->rectangle (draw->x0, draw->y0, draw->width(), draw->height());
+ context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());
if (!_outline) {
context->fill ();
@@ -96,30 +103,30 @@ Rectangle::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) con
*/
if (!_fill) {
- context->rectangle (draw->x0, draw->y0, draw->width(), draw->height());
+ context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());
context->stroke ();
}
} else {
if (_outline_what & LEFT) {
- context->move_to (draw->x0, draw->y0);
- context->line_to (draw->x0, draw->y1);
+ context->move_to (draw.x0, draw.y0);
+ context->line_to (draw.x0, draw.y1);
}
if (_outline_what & BOTTOM) {
- context->move_to (draw->x0, draw->y1);
- context->line_to (draw->x1, draw->y1);
+ context->move_to (draw.x0, draw.y1);
+ context->line_to (draw.x1, draw.y1);
}
if (_outline_what & RIGHT) {
- context->move_to (draw->x1, draw->y0);
- context->line_to (draw->x1, draw->y1);
+ context->move_to (draw.x1, draw.y0);
+ context->line_to (draw.x1, draw.y1);
}
if (_outline_what & TOP) {
- context->move_to (draw->x0, draw->y0);
- context->line_to (draw->x1, draw->y0);
+ context->move_to (draw.x0, draw.y0);
+ context->line_to (draw.x1, draw.y0);
}
context->stroke ();
diff --git a/libs/canvas/text.cc b/libs/canvas/text.cc
index e4575de3b5..4c4d16d85c 100644
--- a/libs/canvas/text.cc
+++ b/libs/canvas/text.cc
@@ -96,12 +96,27 @@ Text::redraw (Cairo::RefPtr<Cairo::Context> context) const
* ::render
*/
- cerr << "rendered \"" << layout->get_text() << "\" into image\n";
-
_need_redraw = false;
}
void
+Text::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) const
+{
+ if (_text.empty()) {
+ 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());
+ context->set_source (_image, self.x0, self.y0);
+ context->fill ();
+}
+
+void
Text::clamp_width (double w)
{
_clamped_width = w;
@@ -138,26 +153,6 @@ Text::compute_bounding_box () const
}
void
-Text::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
-{
- if (_text.empty()) {
- return;
- }
-
- if (_need_redraw) {
- redraw (context);
- }
-
-
- Rect self = item_to_window (Rect (0, 0, min (_clamped_width, _width), _height));
- cerr << "Draw \"" << _text << "\" @ " << self.x0 << ", " << self.y0 << ' ' << self.width() << " x " << self.height() << endl;
- context->rectangle (self.x0, self.y0, self.width(), self.height());
- context->set_source (_image, 0, 0);
- //context->set_source_rgb (0.3, 0.4, 0.02);
- context->fill ();
-}
-
-void
Text::set_alignment (Pango::Alignment alignment)
{
begin_change ();
diff --git a/libs/canvas/wave_view.cc b/libs/canvas/wave_view.cc
index 1edbf89c87..c22ee54d50 100644
--- a/libs/canvas/wave_view.cc
+++ b/libs/canvas/wave_view.cc
@@ -154,10 +154,6 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
Rect self = item_to_window (Rect (0.0, 0.0, _region->length() / _samples_per_pixel, _height));
boost::optional<Rect> draw = self.intersection (area);
- context->rectangle (self.x0, self.y0, self.width(), self.height());
- context->set_source_rgb (1.0, 0.0, 0.0);
- context->stroke ();
-
if (!draw) {
return;
}
@@ -169,8 +165,8 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
list<CacheEntry*>::iterator cache = _cache.begin ();
- cerr << name << " draw " << area << "self = " << self << "\n\twill use " << draw.get() << endl;
-#if 1
+ // cerr << name << " draw " << area << "self = " << self << "\n\twill use " << draw.get() << endl;
+#if 0
cerr << " Cache contains " << _cache.size() << endl;
while (cache != _cache.end()) {
cerr << "\tsample span " << (*cache)->start() << " .. " << (*cache)->end()
@@ -186,7 +182,7 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
while ((end - start) > 1.0) {
- cerr << "***** RANGE = " << start << " .. " << end << " = " << end - start << endl;
+ // cerr << "***** RANGE = " << start << " .. " << end << " = " << end - start << endl;
frameoffset_t start_sample_offset = to_src_sample_offset (_region_start, start, _samples_per_pixel);
@@ -208,8 +204,6 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
if (cache == _cache.end ()) {
- cerr << "Nothing in cache spans\n";
-
/* Case 1: we have run out of cache entries, so make a new one for
the whole required area and put it in the list.
@@ -225,9 +219,6 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
double const rend = _region->length() / _samples_per_pixel;
double const endpoint = min (rend, max (end, start + _canvas->visible_area().width()));
- cerr << "New cache entry for " << start_sample_offset << " .. " << to_src_sample_offset (_region_start, endpoint, _samples_per_pixel)
- << endl;
-
CacheEntry* c = new CacheEntry (this,
start_sample_offset,
to_src_sample_offset (_region_start, endpoint, _samples_per_pixel),
@@ -261,9 +252,7 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
npeaks = end_pixel - start;
assert (npeaks > 0);
-
- cerr << "New fill-in cache entry for " << start_sample_offset << " .. " << end_sample_offset << endl;
-
+
CacheEntry* c = new CacheEntry (this,
start_sample_offset,
end_sample_offset,
@@ -279,8 +268,6 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
we have left, so render it.
*/
- cerr << "found suitable cache entry\n";
-
image = *cache;
++cache;
@@ -290,7 +277,7 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
double this_end = min (end, to_pixel_offset (_region_start, image->end (), _samples_per_pixel));
double const image_origin = to_pixel_offset (_region_start, image->start(), _samples_per_pixel);
-#if 1
+#if 0
cerr << "\t\tDraw image between "
<< start
<< " .. "
@@ -306,11 +293,10 @@ WaveView::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) cons
<< endl;
#endif
- cerr << "Fill rect " << draw->x0 << ", " << self.y0 << ' ' << draw->width() << " x " << draw->height() << endl;
+ // cerr << "Fill rect " << draw->x0 << ", " << self.y0 << ' ' << draw->width() << " x " << draw->height() << endl;
context->rectangle (start, draw->y0, this_end - start, _height);
- // context->set_source (image->image(), image_origin, self.y0 - draw->y0);
- context->set_source_rgb (0.0, 0.0, 1.0);
+ context->set_source (image->image(), self.x0 - image_origin, self.y0);
context->fill ();
start = this_end;