我们从Python开源项目中，提取了以下20个代码示例，用于说明如何使用wx.NullBitmap()。
def refresh(self): dc = wx.MemoryDC(self.drawingBuffer) dc.SelectObject(self.drawingBuffer) dc.SetBackground(wx.Brush(self.background, style=wx.SOLID)) dc.Clear() gc = wx.GraphicsContext.Create(dc) # do not draw if window is very small, right solution? XXX - idfah if self.winRadius < 1.0e-3: return self.draw(gc) dc.SelectObject(wx.NullBitmap) self.triggerRepaint()
def DrawFromSelectedNode(self, msg): t = msg.replace("][", ",").replace("[", "").replace("]", "").split(",") osx = int(t[0]) osy = int(t[1]) oex = int(t[2]) oey = int(t[3]) i = wx.Bitmap(os.path.join(self.screenShotDir, "screenshot.png")) dc = wx.MemoryDC(i) dc.SetPen(wx.Pen(wx.RED, 1)) #???(wxpython????drawline?drawlines, ??drawrect??????) dc.DrawLine(osx, osy, osx, oey) dc.DrawLine(osx, osy, oex, osy) dc.DrawLine(oex, osy, oex, oey) dc.DrawLine(osx, oey, oex, oey) dc.SelectObject(wx.NullBitmap) self.screenShot.SetBitmap(i) self.Refresh(eraseBackground=True, rect=None)
def OnLeftRelease(self,e): self.player.stop() self.brec.SetBitmapLabel(self.brecxicon) self.bplay.SetBitmapLabel(self.bplayicon) if self.hasSelected: #the frame selected was clicked img = self.MakeThumbnail(os.path.join(self.imgdir, self.selected.GetName() ), self.thumbsize) self.selected.SetBitmap(wx.BitmapFromImage(img) ) self.hasSelected = True self.previous = 0 self.player.play() self.viewport.Refresh() self.brec.SetBitmapLabel(self.brecicon) if not self.hasSelected: # we clicked something new # get new selection self.selected = e.GetEventObject() # highlight new selection img = self.MakeThumbnail(os.path.join(self.imgdir, self.selected.GetName() ), self.thumbsize + 3) imgb = wx.BitmapFromImage(img) dc = wx.MemoryDC(imgb) staricon = wx.Image(os.path.join(os.path.dirname(__file__),'..','..','stopgo','images','select.png') ) star = wx.BitmapFromImage(staricon) dc.DrawBitmap(star,133,0) dc.SelectObject(wx.NullBitmap) del dc control = wx.StaticBitmap(self, -1, imgb) self.selected.SetBitmap(imgb) self.hasSelected = True self.previous = self.selected.GetId() #paint canvas img = self.MakeThumbnail(os.path.join( self.imgdir, self.selected.GetName() ), self.screenHeight*.9) self.GetStatusBar().SetStatusText(self.selected.GetName(), 0) self.PaintCanvas(img) self.viewport.Refresh()
def CreateBitmap(self, artid, client, size): if not artid.startswith('priv'): return wx.NullBitmap artid = artid.split('/')[1:] # Split path and remove 'priv' artid = '/'.join(artid) # rejoin remaining parts fpath = appconstants.getdatapath(artid) return wx.Bitmap(fpath, wx.BITMAP_TYPE_ANY)
def refresh(self): """Refresh the drawing area after a change has been made. This method sets up a drawing context, calls self.draw to update the drawing and then calls self.triggerRepaint in order to update the drawing area on the screen. This method should be called each time a change is made that requires the drawing area to be updated. """ dc = wx.MemoryDC(self.drawingBuffer) dc.SelectObject(self.drawingBuffer) dc.SetBackground(wx.Brush(self.background, style=wx.SOLID)) dc.Clear() # do not draw if window is very small, right solution? XXX - idfah if self.winRadius < 1.0e-3: return #dc.BeginDrawing() self.draw(dc) #dc.EndDrawing() #del dc dc.SelectObject(wx.NullBitmap) self.triggerRepaint()
def DrawROI(self): object = self.object bmp = self.image.GetBitmap() w = bmp.GetWidth() h = bmp.GetHeight() roi = [0]*6 for i in range(3): roi[2*i] = int(self.roi[2*i].value.GetValue()) - 1 roi[2*i+1] = int(self.roi[2*i+1].value.GetValue()) axis = int(self.scrollaxis.value.GetValue()) if axis == 1: x1 = int(float(w*roi[4])/float(object.shape[2]) +0.5) x2 = int(float(w*(roi[5]))/float(object.shape[2]) -0.5) y1 = int(float(h*roi[2])/float(object.shape[1]) +0.5) y2 = int(float(h*(roi[3]))/float(object.shape[1]) -0.5) elif axis == 2: x1 = int(float(w*roi[4])/float(object.shape[2]) +0.5) x2 = int(float(w*(roi[5]))/float(object.shape[2]) -0.5) y1 = int(float(h*roi[0])/float(object.shape[0]) +0.5) y2 = int(float(h*(roi[1]))/float(object.shape[0]) -0.5) elif axis == 3: x1 = int(float(w*roi[2])/float(object.shape[1]) +0.5) x2 = int(float(w*(roi[3]))/float(object.shape[1]) -0.5) y1 = int(float(h*roi[0])/float(object.shape[0]) +0.5) y2 = int(float(h*(roi[1]))/float(object.shape[0]) -0.5) self.dc = wx.MemoryDC(bmp) self.dc.SelectObject(bmp) self.dc.SetPen(wx.Pen(wx.RED, 1)) self.dc.SetBrush(wx.TRANSPARENT_BRUSH) self.dc.DrawLine(x1, 1, x1, h) self.dc.DrawLine(x2, 1, x2, h) self.dc.DrawLine(1, y1, w, y1) self.dc.DrawLine(1, y2, w, y2) self.dc.SelectObject(wx.NullBitmap) self.image.SetBitmap(bmp) self.Layout()
def DrawROI(self): object = self.object bmp = self.image.GetBitmap() w = bmp.GetWidth() h = bmp.GetHeight() roi = [0]*6 for i in range(3): roi[2*i] = int(self.roi[2*i].value.GetValue()) - 1 roi[2*i+1] = int(self.roi[2*i+1].value.GetValue()) - 1 axis = int(self.scrollaxis.value.GetValue()) if axis == 1: rx = int(float(w*roi[4])/float(object.shape[2]) +0.5) rw = int(float(w*(roi[5] - roi[4] +1.0))/float(object.shape[2]) +0.5) ry = int(float(h*roi[2])/float(object.shape[1]) +0.5) rh = int(float(h*(roi[3] - roi[2] +1.0))/float(object.shape[1]) +0.5) elif axis == 2: rx = int(float(w*roi[4])/float(object.shape[2]) +0.5) rw = int(float(w*(roi[5] - roi[4] +1.0))/float(object.shape[2]) +0.5) ry = int(float(h*roi[0])/float(object.shape[0]) +0.5) rh = int(float(h*(roi[1] - roi[0] +1.0))/float(object.shape[0]) +0.5) elif axis == 3: rx = int(float(w*roi[2])/float(object.shape[1]) +0.5) rw = int(float(w*(roi[3] - roi[2] +1.0))/float(object.shape[1]) +0.5) ry = int(float(h*roi[0])/float(object.shape[0]) +0.5) rh = int(float(h*(roi[1] - roi[0] +1.0))/float(object.shape[0]) +0.5) self.dc = wx.MemoryDC(bmp) self.dc.SelectObject(bmp) self.dc.SetPen(wx.Pen(wx.RED, 1)) self.dc.SetBrush(wx.TRANSPARENT_BRUSH) self.dc.DrawRectangle(rx, ry, rw, rh) self.dc.SelectObject(wx.NullBitmap) self.image.SetBitmap(bmp) self.Layout()
def __init__(self, parent, id=wx.ID_ANY, bitmap=wx.NullBitmap, style=wx.ALIGN_LEFT, size=(-1,-1)): wx.BitmapButton.__init__(self, parent, id, bitmap=bitmap, style=style, size=size)
def saveImage(canvas, filename): s = wx.ScreenDC() w, h = canvas.size.Get() b = wx.EmptyBitmap(w, h) m = wx.MemoryDCFromDC(s) m.SelectObject(b) m.Blit(0, 0, w, h, s, 70, 0) m.SelectObject(wx.NullBitmap) b.SaveFile(filename, wx.BITMAP_TYPE_PNG)
def draw_box(self): x1, x2 = self.plot._point2ClientCoord(*self.selected)[::2] dc = wx.ClientDC(self.plot.canvas) dc.SetLogicalFunction(wx.INVERT) dc.DrawRectangle(x1, 0, x2, dc.GetSize()[1]) dc.SetLogicalFunction(wx.COPY) # def clear(self): # # An experimental way to clear the canvas without redrawing the plot every time # # dc.Blit() usage from SOF. # if self.selection_drawn: # self.draw_box() # clear old # self.selection_drawn = False # dc = wx.ClientDC(self.plot.canvas) # size = dc.GetSize() # bmp = wx.Bitmap(size.width, size.height) # prev_dc = wx.MemoryDC() # prev_dc.SelectObject(bmp) # prev_dc.Blit( # 0, # Copy to this X coordinate # 0, # Copy to this Y coordinate # size.width, # Copy this width # size.height, # Copy this height # dc, # From where do we copy? # 0, # What's the X offset in the original DC? # 0 # What's the Y offset in the original DC? # ) # prev_dc.SelectObject(wx.NullBitmap) # dc.Clear() # dc.DrawBitmap(bmp, 0, 0) # # if self.plot.last_draw is not None: # # self.plot.Draw(self.plot.last_draw[0])
def RefreshEditorToolBar(self): selected = self.TabsOpened.GetSelection() menu = None if selected != -1: window = self.TabsOpened.GetPage(selected) if isinstance(window, (Viewer, TextViewer)): if not window.IsDebugging(): menu = self.Controler.GetEditedElementBodyType(window.GetTagName()) else: menu = "debug" if menu is not None and menu != self.CurrentMenu: self.ResetEditorToolBar() self.CurrentMenu = menu self.CurrentEditorToolBar = [] EditorToolBar = self.Panes["EditorToolBar"] if EditorToolBar: for radio, modes, id, method, picture, help in EditorToolBarItems[menu]: if modes & self.DrawingMode: if radio or self.DrawingMode == FREEDRAWING_MODE: EditorToolBar.AddRadioTool(id, GetBitmap(picture), wx.NullBitmap, help) else: EditorToolBar.AddSimpleTool(id, GetBitmap(picture), help) self.Bind(wx.EVT_MENU, getattr(self, method), id=id) self.CurrentEditorToolBar.append(id) EditorToolBar.Realize() self.AUIManager.GetPane("EditorToolBar").BestSize(EditorToolBar.GetBestSize()) self.AUIManager.GetPane("EditorToolBar").Show() self.AUIManager.Update() elif menu is None: self.ResetEditorToolBar() self.CurrentMenu = menu self.ResetCurrentMode() # ------------------------------------------------------------------------------- # EditorToolBar Items Functions # -------------------------------------------------------------------------------
def save_bitmap(self, path): context = wx.ClientDC( self ) memory = wx.MemoryDC( ) x, y = self.ClientSize bitmap = wx.Bitmap( x, y, -1 ) memory.SelectObject( bitmap ) memory.Blit( 0, 0, x, y, context, 0, 0) memory.SelectObject( wx.NullBitmap) bitmap.SaveFile( path, wx.BITMAP_TYPE_PNG )
def __init__(self, parent): wx.Panel.__init__(self, parent, id=wx.ID_ANY, pos=(0, 0), size=(480, 320)) self.bitmap_1 = wx.StaticBitmap(self, wx.ID_ANY, wx.Bitmap("./gui/thanks.png", wx.BITMAP_TYPE_ANY), pos=(0, 0)) self.bitmap_2 = wx.StaticBitmap(self, wx.ID_ANY, wx.NullBitmap, pos=(10, 10)) self.label_1 = wx.StaticText(self, wx.ID_ANY, 'bla blub', pos=(120, 50), size=(340, 100)) self.label_1.SetFont(wx.Font(25, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, "Humor Sans")) self.label_1.SetForegroundColour("white")
def create_tool(self, name, binding=None, style=wx.ITEM_NORMAL, s_help="", l_help=""): l_id = id_renew(name) IDS[l_id] = name label_text = translate_key(IDS[l_id]) button = self.AddLabelTool(l_id, label_text, wx.NullBitmap, wx.NullBitmap, style, s_help, l_help) if binding: self.main_class.Bind(wx.EVT_TOOL, binding, id=l_id) return button
def __init__(self, parent, bitmap=wx.NullBitmap, size=util.MAX_IMAGE_SIZE): super(MyStaticBitmap, self).__init__(parent) self.bmp = bitmap self.scale = 1.0 self.bitmap = wx.StaticBitmap(self, bitmap=bitmap) self.size = size self.sizer = wx.BoxSizer(wx.VERTICAL) self.sizer.AddStretchSpacer() self.sizer.Add(self.bitmap, 0, wx.EXPAND) self.sizer.AddStretchSpacer() self.SetMinSize((size, size)) self.SetSizer(self.sizer) self.sizer.Layout()
def draw_bitmap_rectangle(bitmap, faces): """Draw rectangle on bitmap.""" dc = wx.MemoryDC(bitmap.bmp) dc.SetPen(wx.BLUE_PEN) dc.SetBrush(wx.TRANSPARENT_BRUSH) dc.SetTextBackground('black') dc.SetTextForeground('white') dc.SetBackgroundMode(wx.SOLID) dc.SetFont(wx.Font(8, wx.FONTFAMILY_DEFAULT, wx.FONTSTYLE_NORMAL, wx.FONTWEIGHT_BOLD)) for face in faces: dc.DrawRectangle( face.rect.left * bitmap.scale, face.rect.top * bitmap.scale, face.rect.width * bitmap.scale, face.rect.height * bitmap.scale, ) if face.name: text_width, text_height = dc.GetTextExtent(face.name) dc.DrawText(face.name, face.rect.left * bitmap.scale, face.rect.top * bitmap.scale - text_height) dc.SelectObject(wx.NullBitmap) bitmap.bitmap.SetBitmap(bitmap.bmp)
def create_background(self): w,h = self.GetSize() self.background_bitmap = wx.EmptyBitmap(w, h) dc = wx.MemoryDC(self.background_bitmap) gc = wx.GraphicsContext_Create(dc) dc.SetBrush(wx.Brush("#FFFFFF")) dc.Clear() dc.DrawRectangle(0,0,w,h) off = h // self.chnls // 2 gc.SetPen(wx.Pen('#000000', width=1, style=wx.SOLID)) gc.SetBrush(wx.Brush("#FFFFFF", style=wx.TRANSPARENT)) dc.SetTextForeground("#444444") if sys.platform in "darwin": font, ptsize = dc.GetFont(), dc.GetFont().GetPointSize() font.SetPointSize(ptsize - 3) dc.SetFont(font) else: font = dc.GetFont() font.SetPointSize(8) dc.SetFont(font) tickstep = w // 10 if tickstep < 40: timelabel = "%.1f" elif tickstep < 80: timelabel = "%.2f" elif tickstep < 120: timelabel = "%.3f" else: timelabel = "%.4f" timestep = (self.end - self.begin) * 0.1 for i, samples in enumerate(self.img): y = h // self.chnls * i if len(samples): gc.DrawLines(samples) dc.SetPen(wx.Pen('#888888', width=1, style=wx.DOT)) dc.DrawLine(0, y+off, w, y+off) # for j in range(10): # dc.SetPen(wx.Pen('#888888', width=1, style=wx.DOT)) # dc.DrawLine(j*tickstep, 0, j*tickstep, h) # dc.DrawText(timelabel % (self.begin+j*timestep), j*tickstep+2, h-y-12) dc.SetPen(wx.Pen('#000000', width=1)) dc.DrawLine(0, h-y, w, h-y) dc.SelectObject(wx.NullBitmap)
def onTakeScreenShot(self, event): """ Takes a screenshot of the screen at give pos & size (rect). Method based on a script by Andrea Gavana """ print('Taking screenshot...') rect = self.GetRect() # adjust widths for Linux (figured out by John Torres # http://article.gmane.org/gmane.comp.python.wxpython/67327) if sys.platform == 'linux2': client_x, client_y = self.ClientToScreen((0, 0)) border_width = client_x - rect.x title_bar_height = client_y - rect.y rect.width += (border_width * 2) rect.height += title_bar_height + border_width # Create a DC for the whole screen area dcScreen = wx.ScreenDC() # Create a Bitmap that will hold the screenshot image later on # Note that the Bitmap must have a size big enough to hold the screenshot # -1 means using the current default colour depth bmp = wx.EmptyBitmap(rect.width, rect.height) #Create a memory DC that will be used for actually taking the screenshot memDC = wx.MemoryDC() # Tell the memory DC to use our Bitmap # all drawing action on the memory DC will go to the Bitmap now memDC.SelectObject(bmp) # Blit (in this case copy) the actual screen on the memory DC # and thus the Bitmap memDC.Blit( 0, # Copy to this X coordinate 0, # Copy to this Y coordinate rect.width, # Copy this width rect.height, # Copy this height dcScreen, # Where to copy from rect.x, # What's the X offset in the original DC? rect.y # What's the Y offset in the original DC? ) # Select the Bitmap out of the memory DC by selecting a new # uninitialized Bitmap memDC.SelectObject(wx.NullBitmap) img = bmp.ConvertToImage() fileName = "myImage.png" img.SaveFile(fileName, wx.BITMAP_TYPE_PNG) print('...saving as png!')
def PostInit(self): logging.debug('{}.AfterInit started'.format(self.name)) UIM = UIManager() root_ctrl = UIM.get_root_controller() if not isinstance(root_ctrl, MainWindowController): raise Exception() # DetachPane if granpa object has a AuiManager... parent_uid = UIM._getparentuid(self.uid) grampa_uid = UIM._getparentuid(parent_uid) parent = UIM.get(parent_uid) grampa = UIM.get(grampa_uid) if isinstance(grampa, MainWindowController): mgr = wx.aui.AuiManager.GetManager(root_ctrl.view) if mgr is not None: mgr.DetachPane(parent.view) if self.model.pos == -1: # Appending - Not needed to declare pos self.model.pos = parent.view.GetToolsCount() if self.model.pos > parent.view.GetToolsCount(): # If pos was setted out of range for inserting in parent Menu msg = 'Invalid tool position for ToolBarTool with text={}. Position will be setting to {}'.format(self.model.label, parent.view.GetToolsCount()) logging.warning(msg) self.model.pos = parent.view.GetToolsCount() if self.model.bitmap is None: bitmap = wx.Bitmap() else: bitmap = wx.Bitmap(self.model.bitmap) # TODO: Rever isso try: tool = parent.view.InsertTool(self.model.pos, self.model.id, self.model.label, bitmap, wx.NullBitmap, self.model.kind, self.model.help, self.model.long_help, None ) except Exception: msg = 'Error in creating ToolBarTool.' logging.exception(msg) raise if self.model.callback and tool: root_ctrl.view.Bind(wx.EVT_TOOL, self.model.callback, tool) parent.view.Realize() # AtachPane again if granpa object had it detached... if isinstance(grampa, MainWindowController): mgr.AddPane(parent.view, parent.view.paneinfo) mgr.Update() logging.debug('{}.AfterInit ended'.format(self.name))
