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We'll start with 'kedit.h'. Here are the relevant (heavily
edited) parts to the file that deal with the menus and toolbar.
OLD: kedit.h
#ifndef _KEDIT_H_
#define _KEDIT_H_
class QPopupMenu;
class TopLevel : public KMainWindow
{
QPopupMenu *file, *edit, *options, *recentpopup;
protected:
void setupMenuBar();
void setupToolBar();
};
#endif
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This is very standard: a bunch of pointers to menus and a
function each to setup the menubar and the toolbar. In our new
framework, we don't need any of that. A single method to setup our
actions will suffice.
NOTE: as you will see later, you can access all of your actions in any
class method without storing a pointer to them. However, if you
anticipate using your actions a lot later, you can store a pointer
here.
NEW: kedit.h
#ifndef _KEDIT_H_
#define _KEDIT_H_
class TopLevel : public KMainWindow
{
protected:
void setupActions();
};
#endif
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This is where the vast bulk of the work is done. I like to open up
the file with a split window. In the top window, I create my
'setupActions()' function while I'm deleting the code in
'setupMenubar()' and 'setupToolbar()' functions in
the lower window.
All of the methods shown here are heavily edited to show only the
relevant code (and maybe a few lines before and after).
First, we start with the original constructor:
OLD: Constructor
#include <qpopupmenu.h>
#include <ktoolbar.h>
TopLevel::TopLevel (QWidget *, const char *name)
: KMainWindow ( name)
{
setupMenuBar();
setupToolBar();
setupStatusBar();
readSettings();
recentpopup->clear();
for ( int i =0 ; i < (int)recent_files.count(); i++)
recentpopup->insertItem(recent_files[i], i, i);
options->setItemChecked( toolID, show_toolbar );
options->setItemChecked( statusID, show_statusbar );
}
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The 'recentpopup' item is a QPopupMenu containing the most
recently opened files. 'options' is also a QPopupMenu
This is all much too verbose. Let's consolidate this to:
NEW: Constructor
#include <kaction.h>
#include <kstdaction.h>
TopLevel::TopLevel (QWidget *, const char *name)
: KMainWindow ( name)
{
setupStatusBar();
setupActions();
readSettings();
}
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Then, we get to the destructor. Typically, you need to delete your
menus, here.
OLD: Destructor
TopLevel::~TopLevel()
{
delete file;
delete edit;
delete options;
delete recentpopup;
}
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With our new framework, all of our UI objects are deleted for us
behind the scenes.
NEW: Destructor
TopLevel::~TopLevel()
{
}
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We'll continue on to the bulk of the work on the next page.
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