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copied!<p>I'm new here, and after searching for a while I still can't find a way to upload files. Oh well, here's the code in a post. Sorry for the non-descriptive variable names and lack of comments. I guess the main functions you'll want to look at are processPicture and showPicture.</p> <p>Edit: and just to reiterate, I started this with the example in <a href="http://paulthom12345.blogspot.com/2008/07/wxpython-tutorial-part-6.html" rel="nofollow noreferrer">this tutorial</a>.</p> <pre><code>import wx, os, string, sys from PIL import Image # Scroll wheel and +/- do zoom in/out. f toggles full screen. r rotates. # m changes PIL mode from low quality (fast) to high quality (slow). # Images under 1000x1000 are automatically on high quality. # Middle button down while dragging moves image around, as do arrow # keys (if image is bigger than window). # Left and right mouse buttons are next and previous image. # There is no functionality to load an image. When an executeable is made, the # viewer is started by opening an image with it. # To run this file from command line, comment out line 55 and uncomment # line 54, then do "viewer.py sampleImage" # There are several lines that are Windows specific. They (probably) all have # to do with paths, i.e, "/" vs "\". class ImageFrame(wx.Frame): def __init__(self): wx.Frame.__init__(self,None,title = "viewer") self.Centre() self.Size = (450,450) self.imageBox = wx.Window(self) self.vbox = wx.BoxSizer(wx.VERTICAL) self.CreateStatusBar(5) self.SetStatusWidths([-1, 70, 50, 50, 30]) self.cursor = wx.StockCursor(wx.CURSOR_ARROW) self.moveCursor = wx.StockCursor(wx.CURSOR_SIZING) self.vbox.Add(self.imageBox,proportion=1,flag = wx.EXPAND) self.SetSizer(self.vbox) self.Show() self.sbm = 0 self.sbmList = [] self.name = '' self.url = '' self.dir = '' self.factor = 1.0 self.rotation = 0 self.width = 0 self.height = 0 self.count = 0 self.size = 0 self.numOfPics = 0 self.mc = False self.fs = False self.mode = 0 self.SetStatusText(str(self.mode), 4) if len(sys.argv) == 2: #self.url = os.getcwd() + '\\' + sys.argv[1] self.url = sys.argv[1] self.name = self.url.split('\\')[len(self.url.split('\\'))-1] self.dir = self.url.replace('\\' + self.name,'') self.loadDirectory(self.dir) self.processPicture() self.imageBox.Bind(wx.EVT_SIZE, lambda evt: self.rescale(evt,1)) self.imageBox.Bind(wx.EVT_MOUSEWHEEL,self.zoom) self.imageBox.Bind(wx.EVT_KEY_DOWN, self.keyEvent) self.imageBox.Bind(wx.EVT_MIDDLE_UP, self.endDrag) self.imageBox.SetBackgroundColour((0,0,0,0)) self.imageBox.Bind(wx.EVT_LEFT_DOWN, self.next) self.imageBox.Bind(wx.EVT_RIGHT_DOWN, self.prev) def nameFromUrl(self,url): name = url.split('\\') name = name[len(name)-1] return name def processPicture(self, factor = 0): img = Image.open(self.url) self.width = img.size[0] self.height = img.size[1] ogHeight = self.height ogWidth = self.width xWin = self.imageBox.Size[0] yWin = self.imageBox.Size[1] winRatio = 1.0*xWin/yWin imgRatio = 1.0*self.width/self.height self.factor = factor*self.factor if factor == 0: self.factor = 1 mode = 0 if (ogWidth <=1000 and ogHeight <= 1000) or self.mode == 1: mode = 1 if imgRatio >= winRatio: #match widths self.width = self.factor*xWin self.height = self.factor*xWin/imgRatio img = img.resize((int(self.width),int(self.height)),mode) else: #match heights self.height = self.factor*yWin self.width = self.factor*yWin*imgRatio img = img.resize((int(self.width),int(self.height)),mode) label = str(int(100*self.width/ogWidth)) name = self.nameFromUrl(self.url) index = self.sbmList.index(name) self.SetStatusText(name, 0) self.SetStatusText(str(ogWidth) + 'x' + str(ogHeight), 1) self.SetStatusText(label + '%', 2) self.SetStatusText(str(index+1) + '/' + str(self.numOfPics), 3) if self.rotation % 360 != 0: img = img.rotate(self.rotation) self.width = img.size[0] self.height = img.size[1] wximg = wx.EmptyImage(img.size[0],img.size[1]) wximg.SetData(img.convert("RGB").tostring()) wximg.SetAlphaData(img.convert("RGBA").tostring()[3::4]) self.showPicture(wximg) def showPicture(self,img): bmp = wx.BitmapFromImage(img) x = (self.imageBox.Size[0] - self.width)/2.0 y = (self.imageBox.Size[1] - self.height)/2.0 tmp = wx.StaticBitmap(self.imageBox,wx.ID_ANY,bmp,(x,y)) tmp.Bind(wx.EVT_LEFT_DOWN, self.next) tmp.Bind(wx.EVT_RIGHT_DOWN, self.prev) tmp.Bind(wx.EVT_MOTION, self.drag) tmp.Bind(wx.EVT_MIDDLE_UP, self.endDrag) tmp.SetBackgroundColour((180,180,180,180)) if self.sbm: self.sbm.Destroy() self.sbm = tmp self.imageBox.Refresh() def loadDirectory(self,dir): self.sbmList = [] for image in os.listdir(dir): if image.lower().endswith('jpg') or image.lower().endswith('png') or image.lower().endswith('jpeg') or image.lower().endswith('gif') or image.lower().endswith('bmp'): self.sbmList.append(image) self.numOfPics = len(self.sbmList) def next(self,event): if self.name in self.sbmList: n = self.sbmList.index(self.name) if n == len(self.sbmList) - 1: n = -1 self.name = self.sbmList[n + 1] self.url = self.dir + '\\' + self.name self.rotation = 0 self.processPicture() def prev(self,event): if self.name in self.sbmList: n = self.sbmList.index(self.name) if n == 0: n = len(self.sbmList) self.name = self.sbmList[n - 1] self.url = self.dir + '\\' + self.name self.rotation = 0 self.processPicture() def rescale(self,event,factor): if self.url and self.GetStatusBar(): #close is seen as a size event. self.processPicture(factor) def zoom(self,event): factor = 1.25 if event.GetWheelRotation() < 0: factor = 0.8 self.rescale(event,factor) def keyEvent(self,event): code = event.GetKeyCode() if code == 43: #plus self.rescale(event,1.25) elif code == 45: #minus self.rescale(event,0.8) elif code == 82 and self.url: #r self.rotation = self.rotation + 90 self.processPicture(1) elif code == 70: #f self.toggleFS() elif (code == 314 or code == 315 or code == 316 or code == 317) and self.sbm: #left, up, right, down self.scroll(code) elif code == 77: #m if self.mode == 0: self.mode = 1 else: self.mode = 0 self.SetStatusText(str(self.mode), 4) self.processPicture(1) def scroll(self,code): boxPos = self.imageBox.GetScreenPositionTuple() imgPos = self.sbm.GetScreenPositionTuple() delta = 20 if code == 314 and self.width > self.imageBox.Size[0]: compare = boxPos[0] - imgPos[0] if compare <= delta: delta = max(compare,0) self.imageBox.ScrollWindow(delta,0) if code == 315 and self.height > self.imageBox.Size[1]: compare = boxPos[1] - imgPos[1] if compare <= delta: delta = max(compare,0) self.imageBox.ScrollWindow(0,delta) if code == 316 and self.width > self.imageBox.Size[0]: compare = imgPos[0] + self.sbm.Size[0] - boxPos[0] - self.imageBox.Size[0] if compare <= delta: delta = max(compare,0) self.imageBox.ScrollWindow(-delta,0) if code == 317 and self.height > self.imageBox.Size[1]: compare = imgPos[1] + self.sbm.Size[1] - boxPos[1] - self.imageBox.Size[1] if compare <= delta: delta = max(compare,0) self.imageBox.ScrollWindow(0,-delta) def drag(self,event): if event.MiddleIsDown(): if not self.mc: self.SetCursor(self.moveCursor) self.mc = True boxPos = self.imageBox.GetScreenPositionTuple() imgPos = self.sbm.GetScreenPositionTuple() if self.count == 0: self.x = event.GetX() self.y = event.GetY() self.count = self.count + 1 if self.count > 1: deltaX = event.GetX() - self.x deltaY = event.GetY() - self.y if imgPos[0] >= boxPos[0] and deltaX > 0: deltaX = 0 if imgPos[0] + self.width <= boxPos[0] + self.imageBox.Size[0] and deltaX < 0: deltaX = 0 if imgPos[1] >= boxPos[1] and deltaY > 0: deltaY = 0 if imgPos[1] + self.height <= boxPos[1] + self.imageBox.Size[1] and deltaY < 0: deltaY = 0 self.imageBox.ScrollWindow(2*deltaX,2*deltaY) self.count = 0 def endDrag(self,event): self.count = 0 self.SetCursor(self.cursor) self.mc = False def toggleFS(self): if self.fs: self.ShowFullScreen(False) self.fs = False else: self.ShowFullScreen(True) self.fs = True app = wx.App(redirect = False) frame = ImageFrame() app.MainLoop() </code></pre>

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