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| author | Thomas Vander Stichele <thomas@apestaart.org> | 2005-09-24 12:17:59 +0000 |
|---|---|---|
| committer | Thomas Vander Stichele <thomas@apestaart.org> | 2005-09-24 12:17:59 +0000 |
| commit | 5f3ff797a5ba2946a92a5cd275e6d81148328656 (patch) | |
| tree | 6ca21d9664f45ed5541273da474e346522ea2e06 /examples/fvumeter.py | |
| parent | ea0f5ff24b240231e30f79a62c7ce5e7ee94586b (diff) | |
further cleanup, get the tick marks pixel perfect
Original commit message from CVS:
further cleanup, get the tick marks pixel perfect
Diffstat (limited to 'examples/fvumeter.py')
| -rw-r--r-- | examples/fvumeter.py | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/examples/fvumeter.py b/examples/fvumeter.py index ca90309..df9772f 100644 --- a/examples/fvumeter.py +++ b/examples/fvumeter.py @@ -172,26 +172,32 @@ class FVUMeter(gtk.DrawingArea): vumeter_width, vumeter_height) # draw peak level + # 0 maps to width of 0, full scale maps to total width peaklevelpct = self.iec_scale(self.peaklevel) - peakwidth = int(vumeter_width * (peaklevelpct/100)) + peakwidth = int(vumeter_width * (peaklevelpct / 100)) draw_gc = self.green_gc if self.peaklevel >= self.orange_threshold: draw_gc = self.orange_gc if self.peaklevel >= self.red_threshold: draw_gc = self.red_gc - self.window.draw_rectangle(draw_gc, True, - self.leftborder, self.topborder, - peakwidth, vumeter_height) - + if peakwidth > 0: + self.window.draw_rectangle(draw_gc, True, + self.leftborder, self.topborder, + peakwidth, vumeter_height) + # draw yellow decay level if self.decaylevel > -90.0: decaylevelpct = self.iec_scale(self.decaylevel) - decaywidth = int(vumeter_width * (decaylevelpct/100)) + decaywidth = int(vumeter_width) * (decaylevelpct / 100) + # cheat the geometry by drawing 0% level at pixel 0, + # which is same position as just above 0% + if decaywidth == 0: + decaywidth = 1 self.window.draw_line(self.yellow_gc, - self.leftborder + decaywidth, + self.leftborder + decaywidth - 1, self.topborder, - self.leftborder + decaywidth, - self.topborder + vumeter_height) + self.leftborder + decaywidth - 1, + self.topborder + vumeter_height - 1) # draw tick marks scalers = [ @@ -204,18 +210,19 @@ class FVUMeter(gtk.DrawingArea): ( '0', 1.0), ] for level, scale in scalers: + # tick mark, 6 pixels high + # we cheat again here by putting the 0 at the first pixel self.window.draw_line(self.style.black_gc, - self.leftborder + int (scale * vumeter_width), + self.leftborder + int(scale * (vumeter_width - 1)), h - self.bottomborder, - self.leftborder + int(scale * vumeter_width), + self.leftborder + int(scale * (vumeter_width - 1)), h - self.bottomborder + 5) - self.window.draw_line(self.style.black_gc, - self.leftborder, h - self.bottomborder, - self.leftborder, h - self.bottomborder + 5) + # tick label layout = self.create_pango_layout(level) layout_width, layout_height = layout.get_pixel_size() self.window.draw_layout(self.style.black_gc, - self.leftborder + int(scale * vumeter_width) - int(layout_width / 2), + self.leftborder + int(scale * vumeter_width) + - int(layout_width / 2), h - self.bottomborder + 7, layout) # draw the peak level to the right @@ -223,7 +230,7 @@ class FVUMeter(gtk.DrawingArea): layout_width, layout_height = layout.get_pixel_size() self.window.draw_layout(self.style.black_gc, self.leftborder + vumeter_width + 5, - self.topborder + int(vumeter_height/2 - layout_height/2), + self.topborder + int(vumeter_height / 2 - layout_height / 2), layout) gobject.type_register(FVUMeter) |