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202 lines
4.2 KiB
C++
202 lines
4.2 KiB
C++
/****************************************************************************
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** $Id: qtlabelled.cpp,v 1.1 1998/09/25 18:01:40 ramiro%netscape.com Exp $
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**
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** Copyright (C) 1992-1998 Troll Tech AS. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "qtlabelled.h"
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#include "qlayout.h"
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#include "qlabel.h"
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class QtLabelledPrivate {
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public:
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QtLabelledPrivate(QtLabelled* parent)
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{
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QLabel *l = new QLabel(parent, "label");
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l->setMargin(2);
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label = l;
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child = 0;
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align = AlignTop;
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grid = 0;
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}
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QWidget* label;
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QWidget* child;
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int align;
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QGridLayout* grid;
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};
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QtLabelled::QtLabelled( QWidget *parent, const char *name ) :
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QFrame(parent, name)
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{
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init();
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}
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QtLabelled::QtLabelled( const char *label, QWidget *parent, const char *name ) :
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QFrame(parent, name)
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{
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init();
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setLabel(label);
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}
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void QtLabelled::init()
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{
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setFrameStyle( QFrame::Box | QFrame::Sunken );
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setMargin(9);
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d = new QtLabelledPrivate(this);
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layout();
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resetFrameRect();
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}
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QtLabelled::~QtLabelled()
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{
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delete d;
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}
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const char* QtLabelled::labelText() const
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{
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if (d->label->inherits("QLabel"))
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return ((QLabel*)d->label)->text();
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else
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return 0;
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}
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QWidget* QtLabelled::label() const
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{
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return d->label;
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}
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void QtLabelled::setLabel( const char *text )
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{
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if (d->label->inherits("QLabel"))
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((QLabel*)d->label)->setText(text);
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resetFrameRect();
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}
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void QtLabelled::setLabel( QWidget* label )
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{
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bool v = d->label->isVisible();
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delete d->label;
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d->label = label;
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recreate( this, 0, QPoint(0,0), v );
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layout();
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}
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int QtLabelled::alignment() const
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{
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return d->align;
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}
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void QtLabelled::setAlignment( int align )
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{
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if ( d->align != align ) {
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ASSERT( align == AlignTop || align == AlignLeft );
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d->align = align;
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layout();
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resetFrameRect();
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update();
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}
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}
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int QtLabelled::labelMargin() const
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{
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if (d->label->inherits("QLabel"))
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return ((QLabel*)d->label)->margin();
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else
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return 0;
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}
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void QtLabelled::layout()
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{
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delete d->grid;
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QSize sh = d->label->sizeHint();
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if (sh.isValid() && !sh.isEmpty())
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d->label->setFixedSize(sh);
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if ( d->align == AlignTop ) {
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d->grid = new QGridLayout(this,4,4);
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d->grid->addMultiCellWidget( d->label, 0, 0, 1, 2, AlignLeft );
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if (d->child) {
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d->grid->addWidget( d->child, 2, 2, AlignLeft );
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d->grid->setRowStretch( 2, 1 );
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d->grid->setColStretch( 2, 1 );
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}
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d->grid->addRowSpacing( 1, margin()/2 );
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d->grid->addColSpacing( 0, frameWidth()-labelMargin() );
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d->grid->addColSpacing( 1, labelMargin() );
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d->grid->addRowSpacing( 3, frameWidth() );
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d->grid->addColSpacing( 3, frameWidth() );
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} else {
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d->grid = new QGridLayout(this,4,4);
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d->grid->addMultiCellWidget( d->label, 1, 2, 0, 0, AlignTop );
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if (d->child) {
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d->grid->addWidget( d->child, 2, 2, AlignTop );
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d->grid->setRowStretch( 2, 1 );
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d->grid->setColStretch( 2, 1 );
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}
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d->grid->addColSpacing( 1, margin()/2 );
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d->grid->addRowSpacing( 0, frameWidth()-labelMargin() );
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d->grid->addRowSpacing( 1, labelMargin() );
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d->grid->addRowSpacing( 3, frameWidth() );
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d->grid->addColSpacing( 3, frameWidth() );
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}
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resetFrameRect();
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d->grid->activate();
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}
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void QtLabelled::resetFrameRect()
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{
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QRect f = rect();
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if ( d->align == AlignTop ) {
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f.setTop( d->label->height()/2 );
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setFrameRect(f);
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} else {
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f.setLeft( d->label->width()/2 );
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setFrameRect(f);
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}
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}
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void QtLabelled::resizeEvent( QResizeEvent * )
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{
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resetFrameRect();
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}
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void QtLabelled::childEvent( QChildEvent *e )
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{
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if (d->label == e->child())
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return; // Yes, we know all about it.
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if (d->child && e->inserted())
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warning("QtLabelled should only have one child inserted.");
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if (e->inserted())
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d->child = e->child();
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else
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d->child = 0;
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layout();
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}
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/*!
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Provides childEvent() while waiting for Qt 2.0.
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*/
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bool QtLabelled::event( QEvent *e ) {
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switch ( e->type() ) {
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case Event_ChildInserted:
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case Event_ChildRemoved:
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childEvent( (QChildEvent*)e );
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return TRUE;
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default:
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return QWidget::event( e );
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}
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}
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