diff options
Diffstat (limited to 'grapher/CairoWidget.cxx')
| -rw-r--r-- | grapher/CairoWidget.cxx | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/grapher/CairoWidget.cxx b/grapher/CairoWidget.cxx index f627dfaa..db0e464e 100644 --- a/grapher/CairoWidget.cxx +++ b/grapher/CairoWidget.cxx @@ -1,9 +1,15 @@ #include "CairoWidget.hxx" #include <math.h> +#include <vector> + +#include <boost/algorithm/string.hpp> namespace systemtap { + using namespace std; + using namespace boost; + void CairoPlayButton::draw(Cairo::RefPtr<Cairo::Context> cr) { if (!_visible) @@ -44,10 +50,22 @@ namespace systemtap { if (!_visible) return; + vector<string> lines; + split(lines, contents, is_any_of("\n")); + vector<Cairo::TextExtents> extents; + double width = 0.0, height = 0.0; + for (vector<string>::iterator itr = lines.begin(), end = lines.end(); + itr != end; + ++itr) + { + Cairo::TextExtents extent; + cr->get_text_extents(*itr, extent); + extents.push_back(extent); + width = max(width, extent.width); + height += extent.height; + } + cr->save(); - Cairo::TextExtents extents; - cr->get_text_extents(contents, extents); - double width = extents.width, height = extents.height; cr->move_to(_x0 - 2, _y0 - 2); cr->line_to(_x0 + width + 2, _y0 - 2); cr->line_to(_x0 + width + 2, _y0 + height + 2); @@ -56,8 +74,16 @@ namespace systemtap cr->set_source_rgba(1.0, 1.0, 1.0, .8); cr->fill(); cr->set_source_rgba(0.0, 0.0, 0.0, 1.0); - cr->move_to(_x0, _y0 + height); - cr->show_text(contents); + vector<Cairo::TextExtents>::iterator titr = extents.begin(); + double texty = _y0; + for (vector<string>::iterator itr = lines.begin(), end = lines.end(); + itr != end; + ++itr,++titr) + { + cr->move_to(_x0, texty + titr->height); + cr->show_text(*itr); + texty += titr->height; + } cr->restore(); } } |