roar/libgui/GuiCanvasWxBackend.py

147 lines
7.0 KiB
Python

#!/usr/bin/env python3
#
# GuiCanvasWxBackend.py
# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
#
from GuiCanvasColours import Colours
import wx
class GuiCanvasWxBackend():
# {{{ _drawBrushPatch(self, eventDc, patch)
def _drawBrushPatch(self, eventDc, patch):
absPoint = self._xlatePoint(patch)
brushBg, brushFg, pen = self._getBrushPatchColours(patch)
self._setBrushDc(brushBg, brushFg, eventDc, pen)
eventDc.DrawRectangle(*absPoint, *self.cellSize)
# }}}
# {{{ _drawCharPatch(self, eventDc, patch)
def _drawCharPatch(self, eventDc, patch):
absPoint, fontBitmap = self._xlatePoint(patch), wx.Bitmap(*self.cellSize)
brushBg, brushFg, pen = self._getCharPatchColours(patch)
fontDc = wx.MemoryDC(); fontDc.SelectObject(fontBitmap);
fontDc.SetTextForeground(wx.Colour(Colours[patch[2]][:4]))
fontDc.SetTextBackground(wx.Colour(Colours[patch[3]][:4]))
fontDc.SetBrush(brushBg); fontDc.SetBackground(brushBg); fontDc.SetPen(pen);
fontDc.SetFont(self._font)
fontDc.DrawRectangle(0, 0, *self.cellSize); fontDc.DrawText(patch[5], 0, 0);
eventDc.Blit(*absPoint, *self.cellSize, fontDc, 0, 0)
# }}}
# {{{ _finiBrushesAndPens(self)
def _finiBrushesAndPens(self):
[brush.Destroy() for brush in self._brushes or []]
[pen.Destroy() for pen in self._pens or []]
self._brushes, self._lastBrushBg, self._lastBrushFg, self._lastPen, self._pens = None, None, None, None, None
# }}}
# {{{ _getBrushPatchColours(self, patch)
def _getBrushPatchColours(self, patch):
if (patch[2] != -1) and (patch[3] != -1):
brushBg, brushFg, pen = self._brushes[patch[2]], self._brushes[patch[3]], self._pens[patch[3]]
elif (patch[2] == -1) and (patch[3] == -1):
brushBg, brushFg, pen = self._brushes[1], self._brushes[1], self._pens[1]
elif patch[2] == -1:
brushBg, brushFg, pen = self._brushes[patch[3]], self._brushes[patch[3]], self._pens[patch[3]]
elif patch[3] == -1:
brushBg, brushFg, pen = self._brushes[1], self._brushes[patch[2]], self._pens[1]
return (brushBg, brushFg, pen)
# }}}
# {{{ _getCharPatchColours(self, patch)
def _getCharPatchColours(self, patch):
if (patch[2] != -1) and (patch[3] != -1):
brushBg, brushFg, pen = self._brushes[patch[3]], self._brushes[patch[2]], self._pens[patch[3]]
elif (patch[2] == -1) and (patch[3] == -1):
brushBg, brushFg, pen = self._brushes[1], self._brushes[1], self._pens[1]
elif patch[2] == -1:
brushBg, brushFg, pen = self._brushes[patch[3]], self._brushes[patch[3]], self._pens[patch[3]]
elif patch[3] == -1:
brushBg, brushFg, pen = self._brushes[1], self._brushes[patch[2]], self._pens[1]
return (brushBg, brushFg, pen)
# }}}
# {{{ _initBrushesAndPens(self)
def _initBrushesAndPens(self):
self._brushes, self._pens = [None for x in range(len(Colours))], [None for x in range(len(Colours))]
for mircColour in range(len(Colours)):
self._brushes[mircColour] = wx.Brush(wx.Colour(Colours[mircColour][:4]), wx.BRUSHSTYLE_SOLID)
self._pens[mircColour] = wx.Pen(wx.Colour(Colours[mircColour][:4]), 1)
self._lastBrushBg, self._lastBrushFg, self._lastPen = None, None, None
# }}}
# {{{ _setBrushDc(self, brushBg, brushFg, dc, pen)
def _setBrushDc(self, brushBg, brushFg, dc, pen):
if self._lastBrushBg != brushBg:
dc.SetBackground(brushBg); self._lastBrushBg = brushBg;
if self._lastBrushFg != brushFg:
dc.SetBrush(brushFg); self._lastBrushFg = brushFg;
if self._lastPen != pen:
dc.SetPen(pen); self._lastPen = pen;
# }}}
# {{{ _xlatePoint(self, patch)
def _xlatePoint(self, patch):
return [a * b for a, b in zip(patch[:2], self.cellSize)]
# }}}
# {{{ drawCursorMaskWithJournal(self, canvasJournal, eventDc)
def drawCursorMaskWithJournal(self, canvasJournal, eventDc):
[self.drawPatch(eventDc, patch) for patch in canvasJournal.popCursor()]
# }}}
# {{{ drawPatch(self, eventDc, patch)
def drawPatch(self, eventDc, patch):
if ((patch[0] >= 0) and (patch[0] < self.canvasSize[0])) \
and ((patch[1] >= 0) and (patch[1] < self.canvasSize[1])):
self._drawBrushPatch(eventDc, patch) if patch[5] == " " else self._drawCharPatch(eventDc, patch)
return True
else:
return False
# }}}
# {{{ getDeviceContext(self, parentWindow)
def getDeviceContext(self, parentWindow):
eventDc = wx.BufferedDC(wx.ClientDC(parentWindow), self.canvasBitmap)
self._lastBrushBg, self._lastBrushFg, self._lastPen = None, None, None
return eventDc
# }}}
# {{{ onPanelPaintEvent(self, panelEvent, panelWindow)
def onPanelPaintEvent(self, panelEvent, panelWindow):
if self.canvasBitmap != None:
eventDc = wx.BufferedPaintDC(panelWindow, self.canvasBitmap)
# }}}
# {{{ reset(self, canvasSize, cellSize):
def reset(self, canvasSize, cellSize):
self.resize(canvasSize, cellSize)
# }}}
# {{{ resize(self, canvasSize, cellSize):
def resize(self, canvasSize, cellSize):
winSize = [a * b for a, b in zip(canvasSize, cellSize)]
if self.canvasBitmap == None:
self.canvasBitmap = wx.Bitmap(winSize)
else:
oldDc = wx.MemoryDC(); oldDc.SelectObject(self.canvasBitmap);
newDc = wx.MemoryDC(); newBitmap = wx.Bitmap(winSize); newDc.SelectObject(newBitmap);
newDc.Blit(0, 0, *self.canvasBitmap.GetSize(), oldDc, 0, 0)
oldDc.SelectObject(wx.NullBitmap)
self.canvasBitmap.Destroy(); self.canvasBitmap = newBitmap;
self.canvasSize, self.cellSize = canvasSize, cellSize
self._font = wx.Font(8, wx.FONTFAMILY_TELETYPE, wx.FONTSTYLE_NORMAL, wx.FONTWEIGHT_NORMAL)
# }}}
# {{{ xlateEventPoint(self, event, eventDc)
def xlateEventPoint(self, event, eventDc):
eventPoint = event.GetLogicalPosition(eventDc)
rectX, rectY = eventPoint.x - (eventPoint.x % self.cellSize[0]), eventPoint.y - (eventPoint.y % self.cellSize[1])
mapX, mapY = int(rectX / self.cellSize[0] if rectX else 0), int(rectY / self.cellSize[1] if rectY else 0)
return (mapX, mapY)
# }}}
# {{{ __del__(self): destructor method
def __del__(self):
if self.canvasBitmap != None:
self.canvasBitmap.Destroy(); self.canvasBitmap = None;
self._finiBrushesAndPens()
# }}}
#
# __init__(self, canvasSize, cellSize): initialisation method
def __init__(self, canvasSize, cellSize):
self._brushes, self._font, self._lastBrush, self._lastPen, self._pens = None, None, None, None, None
self.canvasBitmap, self.cellSize = None, None
self._initBrushesAndPens(); self.reset(canvasSize, cellSize);
# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120