wx.lib.agw.buttonpanel¶

A custom panel class with gradient background shading with the possibility to add buttons and controls still respecting the gradient background.

Description¶

With ButtonPanel class you have a panel with gradient colouring on it and with the possibility to place some buttons on it. Using a standard panel with normal Button leads to an ugly result: the buttons are placed correctly on the panel - but with grey area around them. Gradient colouring is kept behind the images - this was achieved due to the PNG format and the transparency of the bitmaps.

The image are functioning like a buttons and can be caught in your code using the usual:

self.Bind(wx.EVT_BUTTON, self.OnButton)

method.

The control is generic, and support theming (well, I tested it under Windows with the three default themes: grey, blue, silver and the classic look).

Usage¶

ButtonPanel supports 4 alignments: left, right, top, bottom, which have a different meaning and behavior with respect to ToolBar. The easiest thing is to try the demo to understand, but I’ll try to explain how it works.

CASE 1: ButtonPanel has a main caption text.

Left alignment means ButtonPanel is horizontal, with the text aligned to the left. When you shrink the demo frame, if there is not enough room for all the controls to be shown, the controls closest to the text are hidden;
Right alignment means ButtonPanel is horizontal, with the text aligned to the right. Item layout as above;
Top alignment means ButtonPanel is vertical, with the text aligned to the top. Item layout as above;
Bottom alignment means ButtonPanel is vertical, with the text aligned to the bottom. Item layout as above.

CASE 2: ButtonPanel has no main caption text.

In this case, left and right alignment are the same (as top and bottom are the same), but the layout strategy changes: now if there is not enough room for all the controls to be shown, the last added items are hidden (“last” means on the far right for an horizontal ButtonPanel and far bottom for a vertical ButtonPanel).

Usage example:

import wx
import wx.lib.agw.buttonpanel as BP

class MyFrame(wx.Frame):

    def __init__(self, parent, id=-1, title="ButtonPanel", pos=wx.DefaultPosition,
                 size=(800, 600), style=wx.DEFAULT_FRAME_STYLE):

        wx.Frame.__init__(self, parent, id, title, pos, size, style)

        mainPanel = wx.Panel(self, -1)
        self.logtext = wx.TextCtrl(mainPanel, -1, "", style=wx.TE_MULTILINE)

        vSizer = wx.BoxSizer(wx.VERTICAL)
        mainPanel.SetSizer(vSizer)

        titleBar = BP.ButtonPanel(mainPanel, -1, "A Simple Test & Demo")

        btn1 = BP.ButtonInfo(titleBar, wx.ID_ANY, wx.Bitmap("png4.png", wx.BITMAP_TYPE_PNG))
        titleBar.AddButton(btn1)
        self.Bind(wx.EVT_BUTTON, self.OnButton, btn1)

        btn2 = BP.ButtonInfo(titleBar, wx.ID_ANY, wx.Bitmap("png3.png", wx.BITMAP_TYPE_PNG))
        titleBar.AddButton(btn2)
        self.Bind(wx.EVT_BUTTON, self.OnButton, btn2)

        btn3 = BP.ButtonInfo(titleBar, wx.ID_ANY, wx.Bitmap("png2.png", wx.BITMAP_TYPE_PNG))
        titleBar.AddButton(btn3)
        self.Bind(wx.EVT_BUTTON, self.OnButton, btn3)

        btn4 = BP.ButtonInfo(titleBar, wx.ID_ANY, wx.Bitmap("png1.png", wx.BITMAP_TYPE_PNG))
        titleBar.AddButton(btn4)
        self.Bind(wx.EVT_BUTTON, self.OnButton, btn4)

        vSizer.Add(titleBar, 0, wx.EXPAND)
        vSizer.Add((20, 20))
        vSizer.Add(self.logtext, 1, wx.EXPAND | wx.ALL, 5)

        titleBar.DoLayout()
        vSizer.Layout()


    def OnButton(self, event):
        ''' Handler for the ``wx.EVT_BUTTON`` event. '''

        obj = event.GetEventObject()

        # This will print the button label
        print(obj.GetText())


# our normal wxApp-derived class, as usual

app = wx.App(0)

frame = MyFrame(None)
app.SetTopWindow(frame)
frame.Show()

app.MainLoop()

Window Styles¶

This class supports the following window styles:

Window Styles	Hex Value	Description
`BP_DEFAULT_STYLE`	0x1	`ButtonPanel` has a plain solid background.
`BP_USE_GRADIENT`	0x2	`ButtonPanel` has a gradient shading background.

Events Processing¶

This class processes the following events:

Event Name	Description
`wx.EVT_BUTTON`	Process a wxEVT_COMMAND_BUTTON_CLICKED event, when a button is clicked.

License And Version¶

ButtonPanel is distributed under the wxPython license.

Latest Revision: Andrea Gavana @ 27 Dec 2012, 21.00 GMT

Version 0.7.

Functions Summary¶

`BrightenColour`	Brighten the input colour by a factor.
`MakeDisabledBitmap`	Creates a disabled-looking bitmap starting from the input one.

Classes Summary¶

`BoxSizer`	Pseudo-class that imitates `BoxSizer`.
`BPArt`	`BPArt` is an art provider class which does all of the drawing for `ButtonPanel`.
`ButtonInfo`	This class holds information about every button that is added to
`ButtonPanel`	A custom panel class with gradient background shading with the possibility to
`ButtonPanelText`	This class is used to hold data about the main caption in `ButtonPanel`.
`Control`	This class represents a base class for all pseudo controls used in
`Separator`	This class holds all the information to size and draw a separator inside
`Sizer`	This is a mix-in class to add pseudo support to `wx.Sizer`. Just create
`StatusBarTimer`	Timer used for deleting `StatusBar` long help after `_DELAY` seconds.

Functions¶

BrightenColour(colour, factor)¶

Brighten the input colour by a factor.

Parameters:

colour – a valid wx.Colour instance;
factor (integer) – the factor by which the input colour should be brightened.

Returns:

An instance of wx.Colour, a brightened version of the input colour.

MakeDisabledBitmap(original)¶

Creates a disabled-looking bitmap starting from the input one.

Parameters:: original – an instance of wx.Bitmap to be greyed-out.
Returns:: A greyed-out representation of the input bitmap, an instance of wx.Bitmap.

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