#!/usr/bin/env python3 # # Canvas.py -- XXX # Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz # from CanvasBackend import CanvasBackend from CanvasJournal import CanvasJournal from CanvasExportStore import CanvasExportStore, havePIL, haveUrllib from CanvasImportStore import CanvasImportStore import wx class Canvas(wx.Panel): """XXX""" # {{{ _commitPatch(self, patch): XXX def _commitPatch(self, patch): self.canvasMap[patch[1]][patch[0]] = patch[2:] # }}} # {{{ _dispatchDeltaPatches(self, deltaPatches): XXX def _dispatchDeltaPatches(self, deltaPatches): eventDc = self.canvasBackend.getDeviceContext(self) for patch in deltaPatches: if patch[0] == "resize": del eventDc self.resize(patch[1:], False) eventDc = self.canvasBackend.getDeviceContext(self) elif self.canvasBackend.drawPatch(eventDc, patch): self._commitPatch(patch) self.parentFrame.onCanvasUpdate(undoLevel=self.canvasJournal.patchesUndoLevel) # }}} # {{{ _dispatchPatch(self, eventDc, isCursor, patch, commitUndo=True): XXX def _dispatchPatch(self, eventDc, isCursor, patch, commitUndo=True): if not self._canvasDirtyCursor: self.canvasBackend.drawCursorMaskWithJournal(self.canvasJournal, eventDc) self._canvasDirtyCursor = True if self.canvasBackend.drawPatch(eventDc, patch): patchDeltaCell = self.canvasMap[patch[1]][patch[0]] patchDelta = [*patch[0:2], *patchDeltaCell] if isCursor and commitUndo: self.canvasJournal.pushCursor(patchDelta) else: if commitUndo: if not self._canvasDirty: self.canvasJournal.pushDeltas([], []); self._canvasDirty = True; self.canvasJournal.updateCurrentDeltas(patchDelta, patch) self._commitPatch(patch) # }}} # {{{ onPanelClose(self, event): XXX def onPanelClose(self, event): self.Destroy() # }}} # {{{ onPanelEnterWindow(self, event): XXX def onPanelEnterWindow(self, event): self.parentFrame.SetFocus() # }}} # {{{ onPanelInput(self, event): XXX def onPanelInput(self, event): eventDc = self.canvasBackend.getDeviceContext(self) eventType = event.GetEventType() self._canvasDirty = self._canvasDirtyCursor = False tool = self.canvasInterface.canvasTool if eventType == wx.wxEVT_CHAR: mapPoint = self.brushPos doSkip = tool.onKeyboardEvent( \ event, mapPoint, self.brushColours, self.brushSize, \ chr(event.GetUnicodeKey()), self._dispatchPatch, eventDc) if doSkip: event.Skip(); return; else: mapPoint = self.canvasBackend.xlateEventPoint(event, eventDc) if mapPoint[0] >= self.canvasSize[0] \ or mapPoint[1] >= self.canvasSize[1]: return self.brushPos = mapPoint tool.onMouseEvent( \ event, mapPoint, self.brushColours, self.brushSize, \ event.Dragging(), event.LeftIsDown(), event.RightIsDown(), \ self._dispatchPatch, eventDc) if self._canvasDirty: self.parentFrame.onCanvasUpdate(cellPos=self.brushPos, undoLevel=self.canvasJournal.patchesUndoLevel) if eventType == wx.wxEVT_MOTION: self.parentFrame.onCanvasUpdate(cellPos=mapPoint) # }}} # {{{ onPanelLeaveWindow(self, event): XXX def onPanelLeaveWindow(self, event): eventDc = self.canvasBackend.getDeviceContext(self) self.canvasBackend.drawCursorMaskWithJournal(self.canvasJournal, eventDc) # }}} # {{{ onPanelPaint(self, event): XXX def onPanelPaint(self, event): self.canvasBackend.onPanelPaintEvent(self, event) # }}} # {{{ onStoreUpdate(self, newCanvasSize, newCanvas=None): XXX def onStoreUpdate(self, newCanvasSize, newCanvas=None): self.resize(newCanvasSize=newCanvasSize, commitUndo=False) eventDc = self.canvasBackend.getDeviceContext(self) for numRow in range(self.canvasSize[1]): for numCol in range(self.canvasSize[0]): if newCanvas != None \ and numRow < len(newCanvas) \ and numCol < len(newCanvas[numRow]): self._commitPatch([numCol, numRow, *newCanvas[numRow][numCol]]) self.canvasBackend.drawPatch(eventDc, [numCol, numRow, *self.canvasMap[numRow][numCol]]) wx.SafeYield() # }}} # {{{ resize(self, newCanvasSize, commitUndo=True): XXX def resize(self, newCanvasSize, commitUndo=True): if newCanvasSize != self.canvasSize: self._canvasDirty, self._canvasDirtyCursor = False, False if self.canvasMap == None: self.canvasMap, oldCanvasSize = [], [0, 0] else: oldCanvasSize = self.canvasSize deltaCanvasSize = [b - a for a, b in zip(oldCanvasSize, newCanvasSize)] newWinSize = [a * b for a, b in zip(newCanvasSize, self.canvasBackend.cellSize)] self.SetMinSize(newWinSize); self.SetSize(wx.DefaultCoord, wx.DefaultCoord, *newWinSize); curWindow = self while curWindow != None: curWindow.Layout(); curWindow = curWindow.GetParent(); self.canvasBackend.resize(newCanvasSize, self.canvasBackend.cellSize) eventDc = self.canvasBackend.getDeviceContext(self) self.canvasJournal.resetCursor() if commitUndo: undoPatches, redoPatches = ["resize", *oldCanvasSize], ["resize", *newCanvasSize] if not self._canvasDirty: self.canvasJournal.pushDeltas([], []); self._canvasDirty = True; self.canvasJournal.updateCurrentDeltas(undoPatches, redoPatches) if deltaCanvasSize[0] < 0: for numRow in range(oldCanvasSize[1]): if commitUndo: for numCol in range((oldCanvasSize[0] + deltaCanvasSize[0]), oldCanvasSize[0]): if not self._canvasDirty: self.canvasJournal.pushDeltas([], []); self._canvasDirty = True; self.canvasJournal.updateCurrentDeltas([numCol, numRow, *self.canvasMap[numRow][numCol]], [numCol, numRow, 1, 1, 0, " "]) del self.canvasMap[numRow][-1:(deltaCanvasSize[0]-1):-1] else: for numRow in range(oldCanvasSize[1]): self.canvasMap[numRow].extend([[1, 1, 0, " "]] * deltaCanvasSize[0]) for numNewCol in range(oldCanvasSize[0], newCanvasSize[0]): self._dispatchPatch(eventDc, False, [numNewCol, numRow, 1, 1, 0, " "], commitUndo) if deltaCanvasSize[1] < 0: if commitUndo: for numRow in range((oldCanvasSize[1] + deltaCanvasSize[1]), oldCanvasSize[1]): for numCol in range(oldCanvasSize[0] + deltaCanvasSize[0]): if not self._canvasDirty: self.canvasJournal.pushDeltas([], []); self._canvasDirty = True; self.canvasJournal.updateCurrentDeltas([numCol, numRow, *self.canvasMap[numRow][numCol]], [numCol, numRow, 1, 1, 0, " "]) del self.canvasMap[-1:(deltaCanvasSize[1]-1):-1] else: for numNewRow in range(oldCanvasSize[1], newCanvasSize[1]): self.canvasMap.extend([[[1, 1, 0, " "]] * newCanvasSize[0]]) for numNewCol in range(newCanvasSize[0]): self._dispatchPatch(eventDc, False, [numNewCol, numNewRow, 1, 1, 0, " "], commitUndo) self.canvasSize = newCanvasSize; wx.SafeYield(); self.parentFrame.onCanvasUpdate(size=newCanvasSize, undoLevel=self.canvasJournal.patchesUndoLevel) # }}} # {{{ __del__(self): destructor method def __del__(self): if self.canvasMap != None: self.canvasMap.clear(); self.canvasMap = None; # }}} # # __init__(self, parent, parentFrame, canvasInterface, defaultCanvasPos, defaultCanvasSize, defaultCellSize): initialisation method def __init__(self, parent, parentFrame, canvasInterface, defaultCanvasPos, defaultCanvasSize, defaultCellSize): super().__init__(parent, pos=defaultCanvasPos, size=[w * h for w, h in zip(defaultCanvasSize, defaultCellSize)]) self.brushColours, self.brushPos, self.brushSize = [4, 1], [0, 0], [1, 1] self._canvasDirty, self._canvasDirtyCursor = False, False self.canvasMap, self.canvasPos, self.canvasSize, = None, defaultCanvasPos, defaultCanvasSize self.defaultCanvasPos, self.defaultCanvasSize, self.defaultCellSize = defaultCanvasPos, defaultCanvasSize, defaultCellSize self.parentFrame = parentFrame self.parentFrame.onCanvasUpdate(brushSize=self.brushSize, colours=self.brushColours) self.canvasBackend = CanvasBackend(defaultCanvasSize, defaultCellSize) self.canvasJournal = CanvasJournal() self.canvasExportStore = CanvasExportStore() self.canvasImportStore = CanvasImportStore(parentCanvas=self) self.canvasInterface = canvasInterface(self, parentFrame) # Bind event handlers self.Bind(wx.EVT_CLOSE, self.onPanelClose) self.Bind(wx.EVT_ENTER_WINDOW, self.onPanelEnterWindow) self.Bind(wx.EVT_LEAVE_WINDOW, self.onPanelLeaveWindow) self.parentFrame.Bind(wx.EVT_CHAR, self.onPanelInput) for eventType in (wx.EVT_LEFT_DOWN, wx.EVT_MOTION, wx.EVT_RIGHT_DOWN): self.Bind(eventType, self.onPanelInput) self.Bind(wx.EVT_PAINT, self.onPanelPaint) # vim:expandtab foldmethod=marker sw=4 ts=4 tw=0