A pair of splitter classes used in dialogbox

 Download Source Code and Sample Project


Many programmers are interesting in splitter that using in dialogbox, so do I.

When I read the article General Purpose Splitter Class written by Yurong Lin, I got an idea to make my own classes.

Anyway, Lin's splitter is very good and easy to use, but it has some limitation, such as: 1) do not support more than one pane on one side of the splitter; 2) do not support vertical split; 3) no dragging restriction. Fortunately, it is not very hard to add these features.

Here is the project I'v made, it was built with VC5.0 & MFC version 4.21.

Two classes are provided: CxSplitterWnd & CySplitterWnd, to use them, follow the steps below:

1. Add the source files to your own project, they are xySplitterWnd.h & xySplitterWnd.cpp .

2. Create an picture control in the dialog resource, this control will act as a splitter afterward.

Set the type as Frame, move it to the appropriate position, then give it an ID, such as IDC_XBAR1. One picture control for one splitter, you can make any number of splitters as you like.

3. Declare the objects of CxSplitterWnd/CySplitterWnd in your dialog class.

Of course, you should include xySplitterWnd.h first.

    CxSplitterWnd m_xSplitter1, m_xSplitter2;
    CySplitterWnd m_ySplitter;

4. Initiate the splitter objects in the InitDialog function.

    m_xSplitter1.BindWithControl(this, IDC_XBAR1);  // bind the splitter object to the puppet control
    m_xSplitter1.SetMinWidth(10, 50);  // set the minimum width of the left/right pane 

    m_xSplitter1.AttachAsRightPane(IDC_LEFTPANE1);  // attach a control within the same dialogbox as a pane of the splitter
    m_xSplitter1.AttachAsRightPane(IDC_YBAR);       // you can even attach another splitter as a pane
    m_xSplitter1.AttachAsRightPane(IDC_LEFTPANE2);

    m_xSplitter1.RecalcLayout();

5. Un-bind the splitter object with the puppet control when dialogbox is going to close.

This step can be omitted when you do not want to re-use the splitter object.

    m_xSplitter1.Unbind();

 

Just as Lin's work, there is a message "WM_SPLITTER_MOVED" that generated by the splitter bar whenever the splitter is dragged then dropped. If you want to do something special when the splitter is repositioned, then provide a message handler for this message.

 

Last updated: 13. July 1998



Comments

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • The explosion in mobile devices and applications has generated a great deal of interest in APIs. Today's businesses are under increased pressure to make it easy to build apps, supply tools to help developers work more quickly, and deploy operational analytics so they can track users, developers, application performance, and more. Apigee Edge provides comprehensive API delivery tools and both operational and business-level analytics in an integrated platform. It is available as on-premise software or through …

  • Java developers know that testing code changes can be a huge pain, and waiting for an application to redeploy after a code fix can take an eternity. Wouldn't it be great if you could see your code changes immediately, fine-tune, debug, explore and deploy code without waiting for ages? In this white paper, find out how that's possible with a Java plugin that drastically changes the way you develop, test and run Java applications. Discover the advantages of this plugin, and the changes you can expect to see …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds