e614df56d0
* introduce relayout() which does only that * place guards around relayout() calls in Layout class to prevent recursion svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=738923
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
/*
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* Copyright 2007 by Matias Valdenegro T. <mvaldenegro@informatica.utem.cl>
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* Copyright 2007 by Robert Knight <robertknight@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (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 Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef PLASMA_BOX_LAYOUT
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#define PLASMA_BOX_LAYOUT
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#include <QtCore/QList>
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#include <plasma/plasma_export.h>
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#include <plasma/layouts/layout.h>
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namespace Plasma
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{
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/**
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* The BoxLayout class lays out items in a horizontal or vertical line.
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*/
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class PLASMA_EXPORT BoxLayout : public Layout
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{
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public:
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/**
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* This enum describes the directions in which items can be laid
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* out.
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*/
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enum Direction
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{
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/** Lay items out horizontally, from left to right. */
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LeftToRight,
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/** Lay items out horizontally, from right to left. */
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RightToLeft,
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/** Lay items out vertically, from top to bottom. */
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TopToBottom,
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/** Lay items out vertically, from bottom to top. */
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BottomToTop
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};
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/**
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* Creates a new box layout which lays items out in the specified
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* @p direction
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*/
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explicit BoxLayout(Direction direction , LayoutItem *parent = 0);
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~BoxLayout();
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/** Sets the direction in which items are laid out. */
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void setDirection(Direction direction);
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/** Returns the direction in which items are laid out. */
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Direction direction() const;
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/** Inserts a new item into the layout at the specified index. */
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void insertItem(int index, LayoutItem *l);
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// reimplemented from Layout
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virtual void addItem(LayoutItem *l);
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virtual void removeItem(LayoutItem *l);
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virtual int indexOf(LayoutItem *l) const;
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virtual LayoutItem *itemAt(int i) const;
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virtual LayoutItem *takeAt(int i);
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virtual Qt::Orientations expandingDirections() const;
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virtual int count() const;
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virtual QSizeF minimumSize() const;
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virtual QSizeF maximumSize() const;
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virtual QSizeF sizeHint() const;
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protected:
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void relayout();
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private:
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class Private;
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Private *const d;
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};
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/**
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* A BoxLayout which defaults to laying items out
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* horizontally in a left-to-right order.
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*
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* Equivalent to creating a BoxLayout and passing LeftToRight
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* in the constructor.
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*/
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class PLASMA_EXPORT HBoxLayout : public BoxLayout
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{
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public:
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explicit HBoxLayout(LayoutItem *parent = 0);
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};
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/**
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* A BoxLayout which defaults to laying items out
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* vertically in a top-to-bottom order.
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*
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* Equivalent to creating a BoxLayout and passing TopToBottom
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* in the constructor.
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*/
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class PLASMA_EXPORT VBoxLayout : public BoxLayout
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{
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public:
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explicit VBoxLayout(LayoutItem *parent = 0);
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};
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}
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#endif /* PLASMA_BOX_LAYOUT */
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