| 20 | | bmp = wx.EmptyBitmapRGBA(DIM, DIM, red, green, blue, alpha) |
| 21 | | |
| 22 | | dc = wx.MemoryDC(bmp) |
| 23 | | gc = wx.GraphicsContext.Create(dc) |
| 24 | | |
| 25 | | path = gc.CreatePath() |
| 26 | | path.MoveToPoint(POS,POS) |
| 27 | | path.AddLineToPoint(DIM-POS, DIM-POS) |
| 28 | | gc.SetPen(wx.Pen("red", 8)) |
| 29 | | gc.StrokePath(path) |
| | 25 | if not USE_CAIRO: |
| | 26 | # This one works fine on Mac and Windows, but not wxGTK... |
| | 27 | bmp = wx.EmptyBitmapRGBA(DIM, DIM, red, green, blue, alpha) |
| | 28 | dc = wx.MemoryDC(bmp) |
| | 29 | gc = wx.GraphicsContext.Create(dc) |
| | 30 | path = gc.CreatePath() |
| | 31 | path.MoveToPoint(POS,POS) |
| | 32 | path.AddLineToPoint(DIM-POS, DIM-POS) |
| | 33 | gc.SetPen(wx.Pen("red", 8)) |
| | 34 | gc.StrokePath(path) |
| | 35 | |
| | 36 | else: |
| | 37 | # try out a couple possible workarounds |
| | 38 | sfc = cairo.ImageSurface(cairo.FORMAT_ARGB32, DIM, DIM) |
| | 39 | ctx = cairo.Context(sfc) |
| | 40 | if False: |
| | 41 | # use straight cairo |
| | 42 | ctx.set_source_rgba(red/255.0, green/255.0, blue/255.0, alpha/255.0) |
| | 43 | ctx.paint() |
| | 44 | ctx.set_line_width(8) |
| | 45 | ctx.set_line_cap(cairo.LINE_CAP_ROUND) |
| | 46 | ctx.set_source_rgb(1, 0, 0) |
| | 47 | ctx.move_to(POS, POS) |
| | 48 | ctx.line_to(DIM-POS, DIM-POS) |
| | 49 | ctx.stroke() |
| | 50 | else: |
| | 51 | # use our GC-like wrapper |
| | 52 | import wx.lib.graphics as g |
| | 53 | gc = g.GraphicsContext.CreateFromNative(ctx) |
| | 54 | gc.Clear(wx.Colour(red, green, blue, alpha)) |
| | 55 | path = gc.CreatePath() |
| | 56 | path.MoveToPoint(POS,POS) |
| | 57 | path.AddLineToPoint(DIM-POS, DIM-POS) |
| | 58 | gc.SetPen(wx.Pen("red", 8)) |
| | 59 | gc.StrokePath(path) |
| | 60 | bmp = wx.lib.wxcairo.BitmapFromImageSurface(sfc) |
