controls/DebugVariablePanel/GraphButton.py
author Edouard Tisserant
Tue, 09 Jan 2018 14:52:56 +0100
changeset 1892 daf40a1e7607
parent 1881 091005ec69c4
child 3303 0ffb41625592
permissions -rw-r--r--
Set WAMP registration option so that reconnecting while earlier session still didn't timeout is possible (in case of connection lost, for example).
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2012: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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from __future__ import absolute_import
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import wx
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from util.BitmapLibrary import GetBitmap
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# -------------------------------------------------------------------------------
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#                        Custom button for Graphic Viewer Class
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# -------------------------------------------------------------------------------
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class GraphButton(object):
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    """
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    Class that implements a custom button for graphic Viewer
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    """
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    def __init__(self, x, y, bitmap, callback):
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        """
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        Constructor
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        @param x: X coordinate of Button in Graphic Viewer
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        @param y: Y coordinate of Button in Graphic Viewer
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        @param bitmap: Name of bitmap to use for button
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        @param callback: Reference to function to call when button is pressed
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        """
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        # Save button position
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        self.SetPosition(x, y)
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        # Set button bitmap
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        self.SetBitmap(bitmap)
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        # By default button is hide and enabled
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        self.Shown = False
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        self.Enabled = True
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        # Save reference to callback function
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        self.Callback = callback
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    def __del__(self):
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        """
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        Destructor
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        """
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        # Remove reference to callback function
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        self.callback = None
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    def SetBitmap(self, bitmap):
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        """
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        Set bitmap to use for button
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        @param bitmap: Name of bitmap to use for button
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        """
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        # Get wx.Bitmap object corresponding to bitmap
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        self.Bitmap = GetBitmap(bitmap)
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    def GetSize(self):
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        """
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        Return size of button
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        @return: wx.Size object containing button size
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        """
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        # Button size is size of bitmap
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        return self.Bitmap.GetSize()
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    def SetPosition(self, x, y):
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        """
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        Set button position
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        @param x: X coordinate of Button in Graphic Viewer
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        @param y: Y coordinate of Button in Graphic Viewer
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        """
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        self.Position = wx.Point(x, y)
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    def Show(self, show=True):
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        """
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        Mark if button to be displayed in Graphic Viewer
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        @param show: True if button to be displayed in Graphic Viewer
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        (default True)
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        """
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        self.Shown = show
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    def Hide(self):
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        """
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        Hide button from Graphic Viewer
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        """
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        self.Show(False)
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    def IsShown(self):
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        """
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        Return if button is displayed in Graphic Viewer
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        @return: True if button is displayed in Graphic Viewer
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        """
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        return self.Shown
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    def Enable(self, enable=True):
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        """
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        Mark if button is active in Graphic Viewer
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        @param enable: True if button is active in Graphic Viewer
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        (default True)
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        """
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        self.Enabled = enable
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    def Disable(self):
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        """
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        Deactivate button in Graphic Viewer
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        """
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        self.Enabled = False
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    def IsEnabled(self):
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        """
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        Return if button is active in Graphic Viewer
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        @return: True if button is active in Graphic Viewer
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        """
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        return self.Enabled
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    def HitTest(self, x, y):
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        """
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        Test if point is inside button
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        @param x: X coordinate of point
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        @param y: Y coordinate of point
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        @return: True if button is active and displayed and point is inside
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        button
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        """
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        # Return immediately if button is hidden or inactive
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        if not (self.IsShown() and self.IsEnabled()):
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            return False
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        # Test if point is inside button
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        w, h = self.Bitmap.GetSize()
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        rect = wx.Rect(self.Position.x, self.Position.y, w, h)
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        return rect.InsideXY(x, y)
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    def ProcessCallback(self):
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        """
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        Call callback function if defined
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        """
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        if self.Callback is not None:
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            self.Callback()
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    def Draw(self, dc):
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        """
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        Draw button in Graphic Viewer
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        @param dc: wx.DC object corresponding to Graphic Viewer device context
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        """
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        # Only draw button if button is active and displayed
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        if self.Shown and self.Enabled:
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            dc.DrawBitmap(self.Bitmap, self.Position.x, self.Position.y, True)