ardour/livetrax
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tweak time axis view item text positioning; allow ArdourCanvas::Text to have its width clamped, and use this as TAVI's get narrow so that text doesn't overflow

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This commit is contained in:
Paul Davis 2013-04-15 14:45:22 -04:00
parent 7e19053b88
commit 393ba98422
3 changed files with 19 additions and 10 deletions
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13
gtk2_ardour/time_axis_view_item.cc
View File

@ -80,7 +80,7 @@ TimeAxisViewItem::set_constant_heights ()
Gtkmm2ext::get_ink_pixel_size (layout, width, height);
NAME_HEIGHT = height;
NAME_Y_OFFSET = height + 4;
NAME_Y_OFFSET = height + 5; // XXX this offset is magic
NAME_HIGHLIGHT_SIZE = height + 2;
NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 3;
}
@ -523,7 +523,7 @@ TimeAxisViewItem::set_name_text(const string& new_name)
last_item_width = trackview.editor().sample_to_pixel(item_duration);
name_text_width = pixel_width (new_name, NAME_FONT) + 2;
name_text->set (new_name);
// CAIROCANVAS need to limit text to name_text_width or something
}
/**
@ -886,7 +886,7 @@ TimeAxisViewItem::reset_name_width (double /*pixel_width*/)
{
uint32_t it_width;
int pb_width;
bool pixbuf_holds_full_name;
bool showing_full_name;
if (!name_text) {
return;
@ -895,10 +895,10 @@ TimeAxisViewItem::reset_name_width (double /*pixel_width*/)
it_width = trackview.editor().sample_to_pixel(item_duration);
pb_width = name_text_width;
pixbuf_holds_full_name = last_item_width > pb_width + NAME_X_OFFSET;
showing_full_name = last_item_width > pb_width + NAME_X_OFFSET;
last_item_width = it_width;
if (pixbuf_holds_full_name && (it_width >= pb_width + NAME_X_OFFSET)) {
if (showing_full_name && (it_width >= pb_width + NAME_X_OFFSET)) {
/*
we've previously had the full name length showing
and its still showing.
@ -923,8 +923,7 @@ TimeAxisViewItem::reset_name_width (double /*pixel_width*/)
}
name_text->set (item_name);
// CAIROCANVAS need to limit text length to pb_width
name_text->clamp_width (pb_width);
}
/**

7
libs/canvas/canvas/text.h
View File

@ -24,6 +24,8 @@ public:
void set_font_description (Pango::FontDescription);
void set_alignment (Pango::Alignment);
void clamp_width (double);
void set_size_chars (int nchars);
void dump (std::ostream&) const;
@ -34,9 +36,10 @@ private:
Pango::Alignment _alignment;
mutable Cairo::RefPtr<Cairo::ImageSurface> _image;
mutable Duple _origin;
mutable int _width;
mutable int _height;
mutable double _width;
mutable double _height;
mutable bool _need_redraw;
double _clamped_width;
void redraw (Cairo::RefPtr<Cairo::Context>) const;
};

9
libs/canvas/text.cc
View File

@ -21,6 +21,7 @@ Text::Text (Group* parent)
, _width (0)
, _height (0)
, _need_redraw (false)
, _clamped_width (COORD_MAX)
{
}
@ -80,6 +81,12 @@ Text::redraw (Cairo::RefPtr<Cairo::Context> context) const
_need_redraw = false;
}
void
Text::clamp_width (double w)
{
_clamped_width = w;
}
void
Text::compute_bounding_box () const
{
@ -120,7 +127,7 @@ Text::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) cons
}
context->set_source (_image, 0, 0);
context->rectangle (0, 0, _width, _height);
context->rectangle (0, 0, min (_clamped_width, _width), _height);
context->fill ();
}