Added a demo to show off all the colours that can be added to

wxTheColourDatabase by the wxPython.lib.colourdb module.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9801 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/ColourDB.py

@@ -0,0 +1,114 @@
+
+from wxPython.wx import *
+from wxPython.lib import colourdb
+
+import images
+
+
+# This loads a whole bunch of new color names and values
+# into wxTheColourDatabase
+
+colourdb.updateColourDB()
+
+#----------------------------------------------------------------------
+
+class TestWindow(wxScrolledWindow):
+    def __init__(self, parent):
+        wxScrolledWindow.__init__(self, parent, -1)
+
+        self.clrList = colourdb.getColourList()
+        self.bg_bmp = images.getGridBGBitmap()
+
+        EVT_PAINT(self, self.OnPaint)
+        EVT_ERASE_BACKGROUND(self, self.OnEraseBackground)
+        #self.SetBackgroundColour("WHITE")
+
+        self.font = wxFont(10, wxSWISS, wxNORMAL, wxNORMAL)
+        dc = wxClientDC(self)
+        dc.SetFont(self.font)
+
+        w,h,d,e = dc.GetFullTextExtent("Wy") # a wide character and one that decends
+        self.textHeight = h + d
+        self.lineHeight = self.textHeight + 5
+        self.cellWidth = w
+
+        numCells = 24
+        self.SetScrollbars(self.cellWidth, self.lineHeight, numCells, len(self.clrList) + 2)
+
+
+    def TileBackground(self, dc):
+        # tile the background bitmap
+        sz = self.GetClientSize()
+        w = self.bg_bmp.GetWidth()
+        h = self.bg_bmp.GetHeight()
+
+        # adjust for scrolled position
+        spx, spy = self.GetScrollPixelsPerUnit()
+        vsx, vsy = self.GetViewStart()
+        dx,  dy  = (spx * vsx) % w, (spy * vsy) % h
+
+        x = -dx
+        while x < sz.width:
+            y = -dy
+            while y < sz.height:
+                dc.DrawBitmap(self.bg_bmp, x, y)
+                y = y + h
+            x = x + w
+
+
+    def OnEraseBackground(self, evt):
+        dc = evt.GetDC()
+        if not dc:
+            dc = wxClientDC(self)
+        self.TileBackground(dc)
+
+
+    def OnPaint(self, evt):
+        dc = wxPaintDC(self)
+        self.PrepareDC(dc)
+        self.Draw(dc, self.GetUpdateRegion(), self.GetViewStart())
+
+
+    def Draw(self, dc, rgn=None, vs=None):
+        dc.BeginDrawing()
+        dc.SetTextForeground("BLACK")
+        dc.SetPen(wxPen("BLACK", 1, wxSOLID))
+        dc.SetFont(self.font)
+        colours = self.clrList
+        numColours = len(colours)
+
+        if rgn:
+            # determine the subset that have been exposed and needs drawn
+            rect = rgn.GetBox()
+            pixStart = vs[1]*self.lineHeight + rect.y
+            pixStop  = pixStart + rect.height
+            start = pixStart / self.lineHeight - 1
+            stop = pixStop / self.lineHeight
+        else:
+            start = 0
+            stop = len(numColours)
+
+        for line in range(max(0,start), min(stop,numColours)):
+            clr = colours[line]
+            y = (line+1) * self.lineHeight + 2
+            dc.DrawText(clr, self.cellWidth, y)
+
+            brush = wxBrush(clr, wxSOLID)
+            dc.SetBrush(brush)
+            dc.DrawRectangle(12 * self.cellWidth, y, 6 * self.cellWidth, self.textHeight)
+
+        dc.EndDrawing()
+
+
+
+#----------------------------------------------------------------------
+
+
+def runTest(frame, nb, log):
+    win = TestWindow(nb)
+    return win
+
+#----------------------------------------------------------------------
+
+overview = """
+"""