initial commit for pydrawapp

.vscode/settings.json

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+{
+    "python.pythonPath": "C:\\Users\\Felix Gateru\\AppData\\Local\\Programs\\Python\\Python37\\python.exe"
+}

constants.py

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+
+class PyDraw_Constants:
+    LINE_ID = 100
+    SQUARE_ID = 102
+    CIRCLE_ID = 103
+    TEXT_ID =  104
+
+    SQUARE_MODE = "square"
+    LINE_MODE = "line"
+    CIRCLE_MODE = "circle"
+    TEXT_MODE = "text"
+
+
+
+
+

controller.py

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+import wx
+from constants import PyDraw_Constants
+
+class PyDrawController:
+
+    def __init__(self, view):
+        self.view = view
+        self.mode = PyDraw_Constants.SQUARE_MODE
+
+    def set_circle_mode(self):
+        self.mode = PyDraw_Constants.CIRCLE_MODE
+
+    def set_line_mode(self):
+        self.mode = PyDraw_Constants.LINE_MODE
+
+    def set_square_mode(self):
+        self.mode = PyDraw_Constants.SQUARE_MODE
+
+    def set_text_mode(self):
+        self.mode = PyDraw_Constants.TEXT_MODE
+
+    def clear_drawing(self):
+        self.view.drawing_controller.clear()
+
+    def get_mode(self):
+        return self.mode
+
+    def command_menu_handler(self, command_event):
+        id = command_event.GetId()
+        if id == wx.ID_NEW:
+            print('Clear the drawing area')
+            self.clear_drawing()
+        elif id == wx.ID_OPEN:
+            print('Open a drawing file')
+        elif id == wx.ID_SAVE:
+            print('Save a drawing file')
+        elif id == wx.ID_EXIT:
+            print('Quite the application')
+            self.view.Close()
+        elif id == PyDraw_Constants.LINE_ID:
+            print('set drawing mode to line')
+            self.set_line_mode()
+        elif id == PyDraw_Constants.SQUARE_ID:
+            print('set drawing mode to square')
+            self.set_square_mode()
+        elif id == PyDraw_Constants.CIRCLE_ID:
+            print('set drawing mode to circle')
+            self.set_circle_mode()
+        elif id == PyDraw_Constants.TEXT_ID:
+            print('set drawing mode to Text')
+            self.set_text_mode()
+        else:
+            print('Unknown option', id)

drawincontroller.py

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+from constants import PyDraw_Constants
+
+class DrawingController:
+    def __init__(self, view, model, get_mode):
+        self.view = view
+        self.model = model
+        self.get_mode = get_mode
+
+    def on_mouse_click(self, mouse_event):
+        point = mouse_event.GetPosition()
+        self.add(self.get_mode(), point)
+
+    def add(self, mode, point, size=30):
+        if mode == PyDraw_Constants.SQUARE_MODE:
+            fig = Square(self.view, point, wx.Size(size, size))
+        elif mode == PyDraw_Constants.CIRCLE_MODE:
+            fig = Circle(self.view, point, size)
+        elif mode == PyDraw_Constants.TEXT_MODE:
+            fig = Text(self.view, point, size)
+        elif mode == PyDraw_Constants.LINE_MODE:
+            fig = Line(self.view, point, size)
+
+        self.model.add_figure(fig)
+
+    def clear(self):
+        self.model.clear_figures()
+        self.view.Refresh()

drawingmodel.py

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+
+class DrawingModel:
+    def __init__(self):
+        self.contents = []
+
+    def clear_figures(self):
+        self.contents = []
+
+    def add_figure(self, figure):
+        self.contents.append(figure)

drwingpanel.py

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+from drawingmodel import DrawingModel
+import wx
+
+class DrawingPanel(wx.Panel):
+    def __init__(self,parent, get_mode):
+        super().__init__(parent,-1)
+        self.SetBackgroundColor(wx.Color(255,255,255))
+        self.model = DrawingModel()
+        self.controller = DrawingController(self, self.model,get_mode)
+        self.Bind(wx.EVT_PAINT, self.on_paint)
+        self.Bind(wx.EVT_LEFT_DOWN,self.controller.on_mouse_click)
+
+    def on_paint(self, event):
+        dc =wx.PaintDC(self)
+        for figure in self.model.contents:
+            figure.on_paint(dc)

figure.py

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+
+class Figure(wx.Panel):
+    def __init__(self, parent, id=wx.ID_ANY, pos=None,size=None, style=wx.TAB_TRAVERSAL):
+        wx.Panel.__init__(self, parent, id=id, pos=pos,size=size, style=style)
+        self.point = pos
+        self.size = size
+
+    @abstractmethod
+    def on_paint(self, dc):
+       pass
+
+class Square(Figure):
+    def __init__(self, parent, pos, size):
+        super().__init__(parent=parent, pos=pos, size=size)
+
+    def on_paint(self, dc):
+        dc.DrawRectangle(self.point, self.size)
+
+class Circle(Figure):
+    def __init__(self, parent, pos, size):
+        super().__init__(parent=parent, pos=pos,size=wx.Size(size, size))
+        self.radius = (size - 10) / 2
+        self.circle_center = wx.Point(self.point.x +self.radius, self.point.y + self.radius)
+
+    def on_paint(self, dc):
+        dc.DrawCircle(pt=self.circle_center,radius=self.radius)
+
+class Line(Figure):
+    def __init__(self, parent, pos, size):
+        super().__init__(parent=parent, pos=pos,size=wx.Size(size, size))
+        self.end_point = wx.Point(self.point.x + size,self.point.y + size)
+
+    def on_paint(self, dc):
+        dc.DrawLine(pt1=self.point, pt2=self.end_point)
+
+
+class Text(Figure):
+    def __init__(self, parent, pos, size):
+        super().__init__(parent=parent, pos=pos,size=wx.Size(size, size))
+
+    def on_paint(self, dc):
+        dc.DrawText(text='Text', pt=self.point)

frame.py

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+import wx
+from controller import PyDrawController
+from drwingpanel import DrawingPanel
+from menubar import PyDrawMenuBar
+from toolbar import PyDrawToolBar
+
+class App_Frame(wx.Frame):
+    def __init__(self, title):
+        super().__init__(parent=None,title=title,size=(300,300))
+
+        self.controller = PyDrawController(self)
+        self.vertical_box_sizer = wx.BoxSizer(wx.VERTICAL)
+
+        self.SetSizer(self.vertical_box_sizer)
+
+        self.SetMenuBar(PyDrawMenuBar())
+
+        self.vertical_box_sizer.Add((PyDrawToolBar(self),wx.ID_ANY,wx.EXPAND | wx.ALL, 20 ))
+        self.drawing_panel = DrawingPanel(self, self.controller.get_mode)
+        self.drawing_controller = self.drawing_panel.controller
+        self.vertical_box_sizer.Add(self.drawing_panel,wx.ID_ANY,wx.EXPAND | wx.ALL)
+        self.Bind(wx.EVT_MENU, self.controller.command_menu_handler)
+        self.Center()

menubar.py

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+import wx
+from constants import PyDraw_Constants
+
+class PyDrawMenuBar(wx.MenuBar):
+
+    def __init__(self):
+        super().__init__()
+        fileMenu = wx.Menu()
+        newMenuItem = wx.MenuItem(fileMenu,wx.ID_NEW, text="New",kind=wx.ITEM_NORMAL)
+        newMenuItem.SetBitmap(wx.Bitmap("new.gif"))
+        fileMenu.Append(newMenuItem)
+
+        openMenuItem = wx.MenuItem(fileMenu,wx.ID_OPEN, text="Open",kind=wx.ITEM_NORMAL)
+        openMenuItem.SetBitmap(wx.Bitmap("open.gif"))
+        fileMenu.Append(openMenuItem)
+
+        saveMenuItem = wx.MenuItem(fileMenu,wx.ID_SAVE, text="Save",kind=wx.ITEM_NORMAL)
+        saveMenuItem.SetBitmap(wx.Bitmap("save.gif"))
+        fileMenu.Append(saveMenuItem)
+
+        fileMenu.AppendSeparator()
+        quit = wx.MenuItem(fileMenu,wx.ID_EXIT,'&Quit\tCtrl+Q')
+
+        fileMenu.Append(quit)
+        self.Append(fileMenu, '&File') 
+
+        drawingMenu = wx.Menu()
+        lineMenuItem = wx.MenuItem(drawingMenu,PyDraw_Constants.LINE_ID, text="Line", kind=wx.ITEM_NORMAL)
+        drawingMenu.Append(lineMenuItem)
+        squareMenuItem = wx.MenuItem(drawingMenu,PyDraw_Constants.SQUARE_ID, text="Square", kind=wx.ITEM_NORMAL)
+        drawingMenu.Append(squareMenuItem)
+        circleMenuItem = wx.MenuItem(drawingMenu,PyDraw_Constants.CIRCLE_ID, text="Circle", kind=wx.ITEM_NORMAL)
+        drawingMenu.Append(circleMenuItem)
+        textMenuItem = wx.MenuItem(drawingMenu,PyDraw_Constants.TEXT_ID, text="Text", kind=wx.ITEM_NORMAL)
+
+        drawingMenu.Append(textMenuItem)
+
+        self.Append(drawingMenu,"&Drawing")
+
+

pydrawapp.py

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+from frame import App_Frame
+import wx
+
+class PyDrawApp(wx.App):
+    def OnInit(self):
+        """ Initialise the GUI display"""
+        frame = App_Frame(title='PyDraw')
+        frame.Show()
+        return True
+
+
+# Run the GUI application
+app = PyDrawApp()
+app.MainLoop()

toolbar.py

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+import wx
+
+class PyDrawToolBar(wx.ToolBar):
+    def __init__(self,parent):
+        super().__init__(parent)
+        self.AddTool(toolId=wx.ID_NEW, label="New",bitmap=wx.Bitmap("new.gif"), shortHelp='Open drawing',kind=wx.ITEM_NORMAL)
+        self.AddTool(toolId=wx.ID_OPEN, label="Open",bitmap=wx.Bitmap("load.gif"), shortHelp='Open drawing',kind=wx.ITEM_NORMAL)
+        self.AddTool(toolId=wx.ID_SAVE, label="Save",bitmap=wx.Bitmap("save.gif"), shortHelp="Save drawing", kind=wx.ITEM_NORMAL)
+        self.Realize()