#!/usr/bin/env python3
#
# MiRCARTCanvasInterface.py -- XXX
# Copyright (c) 2018 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#

from MiRCARTToolCircle import MiRCARTToolCircle
from MiRCARTToolFill  import MiRCARTToolFill
from MiRCARTToolLine import MiRCARTToolLine
from MiRCARTToolSelectClone import MiRCARTToolSelectClone
from MiRCARTToolSelectMove import MiRCARTToolSelectMove
from MiRCARTToolRect import MiRCARTToolRect
from MiRCARTToolText import MiRCARTToolText
                
import os, wx

class MiRCARTCanvasInterface():
    """XXX"""
    parentCanvas = parentFrame = canvasPathName = canvasTool = None

    # {{{ _dialogSaveChanges(self)
    def _dialogSaveChanges(self):
        with wx.MessageDialog(self.parentCanvas,                \
                "Do you want to save changes to {}?".format(    \
                    self.canvasPathName), "MiRCART",            \
                wx.CANCEL|wx.CANCEL_DEFAULT|wx.ICON_QUESTION|wx.YES_NO) as dialog:
            dialogChoice = dialog.ShowModal()
            return dialogChoice
    # }}}
    # {{{ _updateCanvasSize(self, newCanvasSize): XXX
    def _updateCanvasSize(self, newCanvasSize):
        eventDc = self.parentCanvas.canvasBackend.getDeviceContext(self.parentCanvas)
        self.parentCanvas.canvasBackend.drawCursorMaskWithJournal(  \
            self.parentCanvas.canvasJournal, eventDc)
        oldCanvasSize = self.parentCanvas.canvasSize
        self.parentCanvas.resize(newCanvasSize)
        self.parentCanvas.canvasBackend.resize(                     \
            newCanvasSize,                                          \
            self.parentCanvas.canvasBackend.cellSize)
        if (newCanvasSize[1] - oldCanvasSize[1]) < 0:
            for numRowOff in range(1, (oldCanvasSize[1] - newCanvasSize[1]) + 1):
                numRow = oldCanvasSize[1] - numRowOff
                del self.parentCanvas.canvasMap[numRow]
        else:
            for numRowOff in range(oldCanvasSize[1] - newCanvasSize[1]):
                numRow = oldCanvasSize[1] + numRowOff
                self.parentCanvas.canvasMap.append(None)
                self.parentCanvas.canvasMap[numRow] =               \
                    [[[1, 1], 0, " "]] * oldCanvasSize[0]
                self.parentCanvas.canvasBackend.drawPatch(          \
                    eventDc,                                        \
                    [[numCol, numRow], *[[1, 1], 0, " "]])
        if (newCanvasSize[0] - oldCanvasSize[0]) < 0:
            for numRow in range(newCanvasSize[1]):
                for numColOff in range(1, (oldCanvasSize[0] - newCanvasSize[0]) + 1):
                    numCol = oldCanvasSize[0] - numColOff
                    del self.parentCanvas.canvasMap[numRow][numCol]
        else:
            for numRow in range(newCanvasSize[1]):
                for numColOff in range(newCanvasSize[0] - oldCanvasSize[0]):
                    numCol = oldCanvasSize[0] + numColOff
                    self.parentCanvas.canvasMap[numRow].append(None)
                    self.parentCanvas.canvasMap[numRow][numCol] =   \
                        [[1, 1], 0, " "]
                    self.parentCanvas.canvasBackend.drawPatch(      \
                        eventDc,                                    \
                        [[numCol, numRow], *[[1, 1], 0, " "]])
        wx.SafeYield()
    # }}}

    # {{{ canvasBrushSolid(self, event): XXX
    def canvasBrushSolid(self, event):
        pass
    # }}}
    # {{{ canvasColour(self, event, numColour): XXX
    def canvasColour(self, event, numColour):
        if event.GetEventType() == wx.wxEVT_TOOL:
            self.parentCanvas.brushColours[0] = numColour
        elif event.GetEventType() == wx.wxEVT_TOOL_RCLICKED:
            self.parentCanvas.brushColours[1] = numColour
        self.parentFrame.onCanvasUpdate(colours=self.parentCanvas.brushColours)
    # }}}
    # {{{ canvasCopy(self, event): XXX
    def canvasCopy(self, event):
        pass
    # }}}
    # {{{ canvasCut(self, event): XXX
    def canvasCut(self, event):
        pass
    # }}}
    # {{{ canvasDecrBrush(self, event): XXX
    def canvasDecrBrush(self, event):
        if  self.parentCanvas.brushSize[0] > 1   \
        and self.parentCanvas.brushSize[1] > 1:
            self.parentCanvas.brushSize =        \
                [a-1 for a in self.parentCanvas.brushSize]
            self.parentFrame.onCanvasUpdate(brushSize=self.parentCanvas.brushSize)
    # }}}
    # {{{ canvasDecrCanvasHeight(self, event): XXX
    def canvasDecrCanvasHeight(self, event):
        if self.parentCanvas.canvasSize[1] > 1:
            self._updateCanvasSize([                        \
                    self.parentCanvas.canvasSize[0],        \
                    self.parentCanvas.canvasSize[1]-1])
    # }}}
    # {{{ canvasDecrCanvasWidth(self, event): XXX
    def canvasDecrCanvasWidth(self, event):
        if self.parentCanvas.canvasSize[0] > 1:
            self._updateCanvasSize([                        \
                    self.parentCanvas.canvasSize[0]-1,        \
                    self.parentCanvas.canvasSize[1]])
    # }}}
    # {{{ canvasDelete(self, event): XXX
    def canvasDelete(self, event):
        pass
    # }}}
    # {{{ canvasExit(self, event): XXX
    def canvasExit(self, event):
        if self.canvasPathName != None:
            saveChanges = self._dialogSaveChanges()
            if saveChanges == wx.ID_CANCEL:
                return
            elif saveChanges == wx.ID_NO:
                pass
            elif saveChanges == wx.ID_YES:
                self.canvasSave()
        self.parentFrame.Close(True)
    # }}}
    # {{{ canvasExportAsPng(self, event): XXX
    def canvasExportAsPng(self, event):
        with wx.FileDialog(self, "Save As...", os.getcwd(), "",                 \
                "*.png", wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT) as dialog:
            if dialog.ShowModal() == wx.ID_CANCEL:
                return False
            else:
                outPathName = dialog.GetPath()
                self.parentCanvas.SetCursor(wx.Cursor(wx.CURSOR_WAIT))
                self.parentCanvas.canvasExportStore.exportBitmapToPngFile(      \
                    self.parentCanvas.canvasBackend.canvasBitmap, outPathName,  \
                        wx.BITMAP_TYPE_PNG)
                self.parentCanvas.SetCursor(wx.Cursor(wx.NullCursor))
                return True
    # }}}
    # {{{ canvasExportImgur(self, event): XXX
    def canvasExportImgur(self, event):
        self.parentCanvas.SetCursor(wx.Cursor(wx.CURSOR_WAIT))
        imgurResult = self.parentCanvas.canvasExportStore.exportBitmapToImgur(   \
            "c9a6efb3d7932fd", self.parentCanvas.canvasBackend.canvasBitmap,    \
            "", "", wx.BITMAP_TYPE_PNG)
        self.parentCanvas.SetCursor(wx.Cursor(wx.NullCursor))
        if imgurResult[0] == 200:
            if not wx.TheClipboard.IsOpened():
                wx.TheClipboard.Open()
                wx.TheClipboard.SetData(wx.TextDataObject(imgurResult[1]))
                wx.TheClipboard.Close()
            wx.MessageBox("Exported to Imgur: " + imgurResult[1],               \
                "Export to Imgur", wx.OK|wx.ICON_INFORMATION)
        else:
            wx.MessageBox("Failed to export to Imgur: " + imgurResult[1],       \
                "Export to Imgur", wx.OK|wx.ICON_EXCLAMATION)
    # }}}
    # {{{ canvasExportPastebin(self, event): XXX
    def canvasExportPastebin(self, event):
        self.parentCanvas.SetCursor(wx.Cursor(wx.CURSOR_WAIT))
        pasteStatus, pasteResult =                                          \
            self.parentCanvas.canvasExportStore.exportPastebin(             \
                "",                          \
                self.parentCanvas.canvasMap,                                \
                self.parentCanvas.canvasSize)
        self.parentCanvas.SetCursor(wx.Cursor(wx.NullCursor))
        if pasteStatus:
            if not wx.TheClipboard.IsOpened():
                wx.TheClipboard.Open()
                wx.TheClipboard.SetData(wx.TextDataObject(pasteResult))
                wx.TheClipboard.Close()
            wx.MessageBox("Exported to Pastebin: " + pasteResult,           \
                "Export to Pastebin", wx.OK|wx.ICON_INFORMATION)
        else:
            wx.MessageBox("Failed to export to Pastebin: " + pasteResult,   \
                "Export to Pastebin", wx.OK|wx.ICON_EXCLAMATION)
    # }}}
    # {{{ canvasIncrBrush(self, event): XXX
    def canvasIncrBrush(self, event):
        self.parentCanvas.brushSize =    \
                [a+1 for a in self.parentCanvas.brushSize]
        self.parentFrame.onCanvasUpdate(brushSize=self.parentCanvas.brushSize)
    # }}}
    # {{{ canvasIncrCanvasHeight(self, event): XXX
    def canvasIncrCanvasHeight(self, event):
        self._updateCanvasSize([                \
            self.parentCanvas.canvasSize[0],    \
            self.parentCanvas.canvasSize[1]+1])
    # }}}
    # {{{ canvasIncrCanvasWidth(self, event): XXX
    def canvasIncrCanvasWidth(self, event):
        self._updateCanvasSize([                \
            self.parentCanvas.canvasSize[0]+1,  \
            self.parentCanvas.canvasSize[1]])
    # }}}
    # {{{ canvasNew(self, event, newCanvasSize=None): XXX
    def canvasNew(self, event, newCanvasSize=None):
        if self.canvasPathName != None:
            saveChanges = self._dialogSaveChanges()
            if saveChanges == wx.ID_CANCEL:
                return
            elif saveChanges == wx.ID_NO:
                pass
            elif saveChanges == wx.ID_YES:
                self.canvasSave()
        self.parentCanvas.SetCursor(wx.Cursor(wx.CURSOR_WAIT))
        if newCanvasSize == None:
            newCanvasSize = list(self.parentCanvas.defaultCanvasSize)
        self.parentCanvas.canvasImportStore.importNew(newCanvasSize)
        self.canvasPathName = None
        self.parentCanvas.SetCursor(wx.Cursor(wx.NullCursor))
        self.parentFrame.onCanvasUpdate(pathName="", undoLevel=-1)
    # }}}
    # {{{ canvasOpen(self, event): XXX
    def canvasOpen(self, event):
        if self.canvasPathName != None:
            saveChanges = self._dialogSaveChanges()
            if saveChanges == wx.ID_CANCEL:
                return
            elif saveChanges == wx.ID_NO:
                pass
            elif saveChanges == wx.ID_YES:
                self.canvasSave()
        with wx.FileDialog(self.parentCanvas, "Open", os.getcwd(), "",  \
                "*.txt", wx.FD_OPEN) as dialog:
            if dialog.ShowModal() == wx.ID_CANCEL:
                return False
            else:
                self.canvasPathName = dialog.GetPath()
                self.parentCanvas.SetCursor(wx.Cursor(wx.CURSOR_WAIT))
                self.parentCanvas.canvasImportStore.importTextFile(self.canvasPathName)
                self.parentCanvas.canvasImportStore.importIntoPanel()
                self.parentCanvas.SetCursor(wx.Cursor(wx.NullCursor))
                self.parentFrame.onCanvasUpdate(                        \
                    pathName=self.canvasPathName, undoLevel=-1)
                return True
    # }}}
    # {{{ canvasPaste(self, event): XXX
    def canvasPaste(self, event):
        pass
    # }}}
    # {{{ canvasRedo(self, event): XXX
    def canvasRedo(self, event):
        self.parentCanvas._dispatchDeltaPatches(    \
            self.parentCanvas.canvasJournal.popRedo())
    # }}}
    # {{{ canvasSave(self, event): XXX
    def canvasSave(self, event):
        if self.canvasPathName == None:
            if self.canvasSaveAs(event) == False:
                return
        try:
            with open(self.canvasPathName, "w") as outFile:
                self.parentCanvas.SetCursor(wx.Cursor(wx.CURSOR_WAIT))
                self.parentCanvas.canvasExportStore.exportTextFile(      \
                    self.parentCanvas.canvasMap,                         \
                    self.parentCanvas.canvasSize, outFile)
                self.parentCanvas.SetCursor(wx.Cursor(wx.NullCursor))
                return True
        except IOError as error:
            return False
    # }}}
    # {{{ canvasSaveAs(self, event): XXX
    def canvasSaveAs(self, event):
        with wx.FileDialog(self.parentCanvas, "Save As", os.getcwd(), "",   \
                "*.txt", wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT) as dialog:
            if dialog.ShowModal() == wx.ID_CANCEL:
                return False
            else:
                self.canvasPathName = dialog.GetPath()
                return self.canvasSave(event)
    # }}}
    # {{{ canvasToolCircle(self, event): XXX
    def canvasToolCircle(self, event):
        self.canvasTool = MiRCARTToolCircle(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_CIRCLE[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_CIRCLE[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_CIRCLE[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasToolFill(self, event): XXX
    def canvasToolFill(self, event):
        self.canvasTool = MiRCARTToolFill(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_FILL[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_FILL[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_FILL[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasToolLine(self, event): XXX
    def canvasToolLine(self, event):
        self.canvasTool = MiRCARTToolLine(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_LINE[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_LINE[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_LINE[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasToolSelectClone(self, event): XXX
    def canvasToolSelectClone(self, event):
        self.canvasTool = MiRCARTToolSelectClone(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_CLONE_SELECT[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_CLONE_SELECT[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_CLONE_SELECT[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasToolSelectMove(self, event): XXX
    def canvasToolSelectMove(self, event):
        self.canvasTool = MiRCARTToolSelectMove(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_MOVE_SELECT[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_MOVE_SELECT[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_MOVE_SELECT[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasToolRect(self, event): XXX
    def canvasToolRect(self, event):
        self.canvasTool = MiRCARTToolRect(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_RECT[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_RECT[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_RECT[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasToolText(self, event): XXX
    def canvasToolText(self, event):
        self.canvasTool = MiRCARTToolText(self.parentCanvas)
        self.parentFrame.menuItemsById[self.parentFrame.CID_TEXT[0]].Check(True)
        toolBar = self.parentFrame.toolBarItemsById[self.parentFrame.CID_TEXT[0]].GetToolBar()
        toolBar.ToggleTool(self.parentFrame.CID_TEXT[0], True)
        self.parentFrame.onCanvasUpdate(toolName=self.canvasTool.name)
    # }}}
    # {{{ canvasUndo(self, event): XXX
    def canvasUndo(self, event):
        self.parentCanvas._dispatchDeltaPatches(    \
            self.parentCanvas.canvasJournal.popUndo())
    # }}}

    #
    # __init__(self, parentCanvas, parentFrame):
    def __init__(self, parentCanvas, parentFrame):
        self.parentCanvas = parentCanvas; self.parentFrame = parentFrame;
        self.canvasPathName = None
        self.canvasToolRect(None)

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