roar/libroar/RoarCanvasWindow.py

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#!/usr/bin/env python3
#
# RoarCanvasWindow.py
# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
#
from GuiWindow import GuiWindow
from ToolObject import ToolObject
import json, wx, sys
import time
class RoarCanvasWindowDropTarget(wx.TextDropTarget):
# {{{ OnDropText(self, x, y, data)
def OnDropText(self, x, y, data):
rc = False
try:
dropMap, dropSize = json.loads(data)
viewRect = self.parent.GetViewStart()
rectX, rectY = x - (x % self.parent.backend.cellSize[0]), y - (y % self.parent.backend.cellSize[1])
mapX, mapY = int(rectX / self.parent.backend.cellSize[0] if rectX else 0), int(rectY / self.parent.backend.cellSize[1] if rectY else 0)
mapPoint = [m + n for m, n in zip((mapX, mapY), viewRect)]
self.parent.commands.lastTool, self.parent.commands.currentTool = self.parent.commands.currentTool, ToolObject()
self.parent.commands.currentTool.setRegion(self.parent.canvas, mapPoint, dropMap, dropSize, external=True)
self.parent.commands.update(toolName=self.parent.commands.currentTool.name)
eventDc = self.parent.backend.getDeviceContext(self.parent.GetClientSize(), self.parent, viewRect)
self.parent.applyTool(eventDc, True, None, None, self.parent.brushPos, False, False, False, self.parent.commands.currentTool, viewRect)
rc = True
except:
with wx.MessageDialog(self.parent, "Error: {}".format(sys.exc_info()[1]), "", wx.OK | wx.OK_DEFAULT) as dialog:
dialogChoice = dialog.ShowModal()
return rc
# }}}
# {{{ __init__(self, parent)
def __init__(self, parent):
super().__init__(); self.parent = parent;
# }}}
class RoarCanvasWindow(GuiWindow):
# {{{ _drawPatch(self, eventDc, isCursor, patch, viewRect)
def _drawPatch(self, eventDc, isCursor, patch, viewRect):
if not self.canvas.dirtyCursor:
self.backend.drawCursorMaskWithJournal(self.canvas.journal, eventDc, viewRect)
self.canvas.dirtyCursor = True
if self.backend.drawPatch(eventDc, patch, viewRect) and isCursor:
patchDeltaCell = self.canvas.map[patch[1]][patch[0]]; patchDelta = [*patch[0:2], *patchDeltaCell];
self.canvas.journal.pushCursor(patchDelta)
# }}}
# {{{ applyTool(self, eventDc, eventMouse, keyChar, keyModifiers, mapPoint, mouseDragging, mouseLeftDown, mouseRightDown, tool, viewRect)
def applyTool(self, eventDc, eventMouse, keyChar, keyModifiers, mapPoint, mouseDragging, mouseLeftDown, mouseRightDown, tool, viewRect):
if mapPoint != None:
mapPoint = [a + b for a, b in zip(mapPoint, viewRect)]
dirty, self.canvas.dirtyCursor, rc = False, False, False
self.canvas.journal.begin()
if eventMouse:
if ((mapPoint[0] < self.canvas.size[0]) \
and (mapPoint[1] < self.canvas.size[1])) \
and ((self.lastCellState == None) \
or (self.lastCellState != [list(mapPoint), mouseDragging, mouseLeftDown, mouseRightDown, list(viewRect)])):
self.brushPos = list(mapPoint)
self.lastCellState = [list(mapPoint), mouseDragging, mouseLeftDown, mouseRightDown, list(viewRect)]
rc, dirty = tool.onMouseEvent(self.brushColours, self.brushSize, self.canvas, self.dispatchPatchSingle, eventDc, keyModifiers, self.brushPos, mouseDragging, mouseLeftDown, mouseRightDown, viewRect)
else:
rc, dirty = tool.onKeyboardEvent(self.brushColours, self.brushSize, self.canvas, self.dispatchPatchSingle, eventDc, keyChar, keyModifiers, self.brushPos, viewRect)
if dirty:
self.dirty = True
self.commands.update(dirty=self.dirty, cellPos=self.brushPos, undoLevel=self.canvas.journal.patchesUndoLevel)
else:
self.commands.update(cellPos=mapPoint if mapPoint else self.brushPos)
self.canvas.journal.end()
if rc and (tool.__class__ == ToolObject) \
and (tool.toolState == tool.TS_NONE) \
and tool.external:
self.commands.currentTool, self.commands.lastTool = self.commands.lastTool, self.commands.currentTool
self.commands.update(toolName=self.commands.currentTool.name)
return rc
# }}}
# {{{ dispatchDeltaPatches(self, deltaPatches)
def dispatchDeltaPatches(self, deltaPatches):
viewRect = self.GetViewStart()
eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, viewRect)
if self.canvas.dirtyCursor:
self.backend.drawCursorMaskWithJournal(self.canvas.journal, eventDc, viewRect)
self.canvas.dirtyCursor = False
for patch in deltaPatches:
if patch == None:
continue
elif patch[0] == "resize":
del eventDc; self.resize(patch[1:], False); eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, self.GetViewStart());
else:
self.canvas._commitPatch(patch); self.backend.drawPatch(eventDc, patch, self.GetViewStart());
# }}}
# {{{ dispatchPatch(self, eventDc, isCursor, patch, viewRect)
def dispatchPatch(self, eventDc, isCursor, patch, viewRect):
if self.canvas.dispatchPatch(isCursor, patch, False if isCursor else True):
self._drawPatch(eventDc, isCursor, patch, viewRect)
# }}}
# {{{ dispatchPatchSingle(self, eventDc, isCursor, patch, viewRect)
def dispatchPatchSingle(self, eventDc, isCursor, patch, viewRect):
if self.canvas.dispatchPatchSingle(isCursor, patch, False if isCursor else True):
self._drawPatch(eventDc, isCursor, patch, viewRect)
# }}}
# {{{ resize(self, newSize, commitUndo=True)
def resize(self, newSize, commitUndo=True):
oldSize = [0, 0] if self.canvas.map == None else self.canvas.size
deltaSize = [b - a for a, b in zip(oldSize, newSize)]
if self.canvas.resize(newSize, commitUndo):
super().resize([a * b for a, b in zip(newSize, self.backend.cellSize)])
self.backend.resize(newSize, self.backend.cellSize)
viewRect = self.GetViewStart(); eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, viewRect);
if deltaSize[0] > 0:
for numRow in range(oldSize[1]):
for numNewCol in range(oldSize[0], newSize[0]):
self._drawPatch(eventDc, False, [numNewCol, numRow, 1, 1, 0, " "], viewRect)
if deltaSize[1] > 1:
for numNewRow in range(oldSize[1], newSize[1]):
for numNewCol in range(newSize[0]):
self._drawPatch(eventDc, False, [numNewCol, numNewRow, 1, 1, 0, " "], viewRect)
self.commands.update(size=newSize, undoLevel=self.canvas.journal.patchesUndoLevel)
# }}}
# {{{ update(self, newSize, commitUndo=True, newCanvas=None)
def update(self, newSize, commitUndo=True, newCanvas=None):
self.resize(newSize, commitUndo)
self.canvas.update(newSize, newCanvas)
eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, self.GetViewStart())
for numRow in range(newSize[1]):
for numCol in range(newSize[0]):
self.backend.drawPatch(eventDc, [numCol, numRow, *self.canvas.map[numRow][numCol]], self.GetViewStart())
# }}}
# {{{ onKeyboardInput(self, event)
def onKeyboardInput(self, event):
viewRect = self.GetViewStart(); eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, viewRect);
keyChar, keyModifiers = chr(event.GetUnicodeKey()), event.GetModifiers()
if not self.applyTool(eventDc, False, keyChar, keyModifiers, None, None, None, None, self.commands.currentTool, viewRect):
event.Skip()
# }}}
# {{{ onEnterWindow(self, event)
def onEnterWindow(self, event):
self.lastCellState = None
# }}}
# {{{ onLeaveWindow(self, event)
def onLeaveWindow(self, event):
if False:
eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, self.GetViewStart())
self.backend.drawCursorMaskWithJournal(self.canvas.journal, eventDc, self.GetViewStart())
self.lastCellState = None
# }}}
# {{{ onMouseInput(self, event)
def onMouseInput(self, event):
viewRect = self.GetViewStart(); eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, viewRect);
mouseDragging, mouseLeftDown, mouseRightDown = event.Dragging(), event.LeftIsDown(), event.RightIsDown()
mapPoint = self.backend.xlateEventPoint(event, eventDc, viewRect)
if not self.applyTool(eventDc, True, None, event.GetModifiers(), mapPoint, mouseDragging, mouseLeftDown, mouseRightDown, self.commands.currentTool, viewRect):
event.Skip()
# }}}
# {{{ onMouseWheel(self, event)
def onMouseWheel(self, event):
if event.GetModifiers() == wx.MOD_CONTROL:
cd = +1 if event.GetWheelRotation() >= event.GetWheelDelta() else -1
newCellSize = [cs + cd for cs in self.backend.cellSize]
if (newCellSize[0] > 0) and (newCellSize[1] > 0):
self.backend.cellSize = newCellSize
super().resize([a * b for a, b in zip(self.canvas.size, self.backend.cellSize)])
self.backend.resize(self.canvas.size, self.backend.cellSize)
viewRect = self.GetViewStart(); eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, viewRect);
for numRow in range(self.canvas.size[1]):
for numCol in range(len(self.canvas.map[numRow])):
self._drawPatch(eventDc, False, [numCol, numRow, *self.canvas.map[numRow][numCol]], viewRect)
else:
event.Skip()
# }}}
# {{{ onPaint(self, event)
def onPaint(self, event):
self.backend.onPaint(self.GetClientSize(), self, self.GetViewStart())
# }}}
# {{{ onScroll(self, event)
def onScroll(self, event):
viewRect = self.GetViewStart()
eventDc = self.backend.getDeviceContext(self.GetClientSize(), self, viewRect)
self.backend.drawCursorMaskWithJournal(self.canvas.journal, eventDc, viewRect)
event.Skip()
# }}}
#
# __init__(self, backend, canvas, cellSize, commands, parent, parentFrame, pos, scrollStep, size): initialisation method
def __init__(self, backend, canvas, cellSize, commands, parent, parentFrame, pos, scrollStep, size):
super().__init__(parent, pos, scrollStep, [w * h for w, h in zip(cellSize, size)])
self.backend, self.canvas, self.cellSize, self.commands, self.parentFrame = backend(self.size, cellSize), canvas, cellSize, commands(self, parentFrame), parentFrame
self.brushColours, self.brushPos, self.brushSize, self.dirty, self.lastCellState = [4, 1], [0, 0], [1, 1], False, None
self.dropTarget = RoarCanvasWindowDropTarget(self)
self.SetDropTarget(self.dropTarget)
self.Bind(wx.EVT_MOUSEWHEEL, self.onMouseWheel)
# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120