BorderLayout initial import
svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=713071
This commit is contained in:
Ivan Čukić
parent
f5d2cac4e7
commit
63164d2cc0
@ -33,6 +33,7 @@ set(plasma_LIB_SRCS
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karambamanager.cpp
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uiloader.cpp
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widgets/boxlayout.cpp
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widgets/borderlayout.cpp
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widgets/checkbox.cpp
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widgets/freelayout.cpp
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widgets/flowlayout.cpp
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@ -106,6 +107,7 @@ install(FILES
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install(FILES
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widgets/boxlayout.h
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widgets/borderlayout.h
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widgets/hboxlayout.h
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widgets/vboxlayout.h
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widgets/freelayout.h
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11
plasma.h
11
plasma.h
@ -78,6 +78,17 @@ enum Location { Floating = 0 /**< Free floating. Neither geometry or z-ordering
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RightEdge /**< Along the right side of the screen */
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};
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/**
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* The position enumeration
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*
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**/
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enum Position { LeftPositioned /**< Positioned left */,
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RightPositioned /**< Positioned right */,
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TopPositioned /**< Positioned top */,
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BottomPositioned /**< Positioned bottom */,
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CenterPositioned /**< Positioned in the center */
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};
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/**
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* Zoom levels that Plasma is aware of...
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**/
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244
widgets/borderlayout.cpp
Normal file
244
widgets/borderlayout.cpp
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@ -0,0 +1,244 @@
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/*
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* Copyright (C) 2007 Ivan Cukic <ivan.cukic+kde@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 General Public License version 2,
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* or (at your option) any later version, as published by the Free
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* Software Foundation
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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 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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#include "borderlayout.h"
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namespace Plasma {
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class BorderLayout::Private {
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public:
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BorderLayout * q;
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explicit Private(BorderLayout * parent = 0)
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: q(parent)
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{
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sizes[LeftPositioned] = -1;
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sizes[RightPositioned] = -1;
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sizes[TopPositioned] = -1;
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sizes[BottomPositioned] = -1;
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sizes[CenterPositioned] = -1;
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}
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virtual ~Private()
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{
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}
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QMap< Position, LayoutItem * > itemPositions;
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QRectF geometry;
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QMap< Position, qreal > sizes;
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};
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BorderLayout::BorderLayout(LayoutItem * parent) :
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Layout(parent), d(new Private(this))
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{
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if (parent) {
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parent->setLayout(this);
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}
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}
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BorderLayout::~BorderLayout()
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{
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delete d;
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}
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Qt::Orientations BorderLayout::expandingDirections() const
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{
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return Qt::Horizontal | Qt::Vertical;
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}
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QRectF BorderLayout::geometry() const
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{
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return d->geometry;
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}
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void BorderLayout::setGeometry(const QRectF& geometry)
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{
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if (!geometry.isValid() || geometry.isEmpty()) {
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return;
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}
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d->geometry = geometry;
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invalidate();
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}
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void BorderLayout::invalidate()
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{
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QPointF origin = d->geometry.topLeft();
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qreal top = 0, bottom = 0, left = 0, right = 0;
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if (d->itemPositions[TopPositioned] /*&& d->itemPositions[TopPositioned]->isVisible()*/) {
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top = (d->sizes[TopPositioned] >= 0) ? d->sizes[TopPositioned] : d->itemPositions[TopPositioned]->sizeHint().height();
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d->itemPositions[TopPositioned]->setGeometry(QRectF(origin, QSizeF(
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d->geometry.width(), top)));
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}
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if (d->itemPositions[BottomPositioned] /*&& d->itemPositions[BottomPositioned]->isVisible()*/) {
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bottom = (d->sizes[BottomPositioned] >= 0) ? d->sizes[BottomPositioned]
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: d->itemPositions[BottomPositioned]->sizeHint().height();
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d->itemPositions[BottomPositioned]->setGeometry(QRectF(origin + QPointF(0,
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d->geometry.height() - bottom), QSizeF(d->geometry.width(),
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bottom)));
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bottom = d->geometry.height() - bottom;
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}
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if (d->itemPositions[LeftPositioned] /*&& d->itemPositions[LeftPositioned]->isVisible()*/) {
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left = (d->sizes[LeftPositioned] >= 0) ? d->sizes[LeftPositioned] : d->itemPositions[LeftPositioned]->sizeHint().width();
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d->itemPositions[LeftPositioned]->setGeometry(QRectF(origin + QPointF(0, top),
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QSizeF(left, bottom - top)));
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}
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if (d->itemPositions[RightPositioned] /*&& d->itemPositions[RightPositioned]->isVisible()*/) {
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right = (d->sizes[RightPositioned] >= 0) ? d->sizes[RightPositioned] : d->itemPositions[RightPositioned]->sizeHint().width();
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d->itemPositions[RightPositioned]->setGeometry(QRectF(origin + QPointF(
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d->geometry.width() - right, top), QSizeF(right, bottom - top)));
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right = d->geometry.width() - right;
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}
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if (d->itemPositions[CenterPositioned] /*&& d->itemPositions[CenterPositioned]->isVisible()*/) {
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d->itemPositions[CenterPositioned]->setGeometry(QRectF(
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origin + QPointF(left, top), QSizeF(right - left, bottom - top)));
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}
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}
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QSizeF BorderLayout::sizeHint() const
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{
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qreal hintHeight = 0.0;
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qreal hintWidth = 0.0;
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if (d->itemPositions[TopPositioned] /*&& d->itemPositions[TopPositioned]->isVisible()*/) {
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hintHeight += d->itemPositions[TopPositioned]->sizeHint().height();
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}
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if (d->itemPositions[BottomPositioned] /*&& d->itemPositions[BottomPositioned]->isVisible()*/) {
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hintHeight += d->itemPositions[BottomPositioned]->sizeHint().height();
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}
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if (d->itemPositions[LeftPositioned] /*&& d->itemPositions[LeftPositioned]->isVisible()*/) {
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hintWidth += d->itemPositions[LeftPositioned]->sizeHint().width();
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}
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if (d->itemPositions[RightPositioned] /*&& d->itemPositions[RightPositioned]->isVisible()*/) {
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hintWidth += d->itemPositions[RightPositioned]->sizeHint().width();
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}
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if (d->itemPositions[CenterPositioned] /*&& d->itemPositions[CenterPositioned]->isVisible()*/) {
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hintHeight += d->itemPositions[CenterPositioned]->sizeHint().height();
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hintWidth += d->itemPositions[CenterPositioned]->sizeHint().width();
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}
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return QSizeF(hintWidth, hintHeight);
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}
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void BorderLayout::addItem(Plasma::LayoutItem * item)
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{
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BorderLayout::addItem (item, CenterPositioned);
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}
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void BorderLayout::addItem(Plasma::LayoutItem * item, Position position)
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{
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d->itemPositions[position] = item;
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update();
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}
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void BorderLayout::removeItem(LayoutItem * item)
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{
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QMutableMapIterator< Position, Plasma::LayoutItem * > i(d->itemPositions);
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while (i.hasNext()) {
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i.next();
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if (i.value() == item) {
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i.remove();
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}
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}
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update();
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}
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int BorderLayout::count() const
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{
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int count = 0;
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foreach (Plasma::LayoutItem * i, d->itemPositions) {
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if (i) {
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++count;
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}
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}
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return count;
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}
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int BorderLayout::indexOf(LayoutItem * item) const
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{
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int count = 0;
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foreach (Plasma::LayoutItem * i, d->itemPositions) {
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if (i) {
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if (item == i) {
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return count;
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}
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++count;
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}
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}
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return -1;
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}
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LayoutItem * BorderLayout::itemAt(int index) const
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{
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int count = 0;
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foreach (Plasma::LayoutItem * i, d->itemPositions) {
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if (i) {
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if (index == count) {
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return i;
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}
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count++;
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}
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}
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}
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Plasma::LayoutItem * BorderLayout::takeAt(int i)
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{
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Plasma::LayoutItem * item = itemAt(i);
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removeItem(item);
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return item;
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}
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void BorderLayout::setSize(qreal size, Position border)
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{
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d->sizes[border] = size;
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update();
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}
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void BorderLayout::setAutoSize(Position border)
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{
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d->sizes[border] = -1;
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update();
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}
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qreal BorderLayout::size(Position border)
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{
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if (border == CenterPositioned) {
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return -1;
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}
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return d->sizes[border];
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}
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}
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98
widgets/borderlayout.h
Normal file
98
widgets/borderlayout.h
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@ -0,0 +1,98 @@
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/*
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* Copyright (C) 2007 Ivan Cukic <ivan.cukic+kde@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 General Public License version 2,
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* or (at your option) any later version, as published by the Free
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* Software Foundation
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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 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_BORDER_LAYOUT
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#define PLASMA_BORDER_LAYOUT
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#include <QtCore/QMap>
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#include <plasma/plasma_export.h>
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#include <plasma/plasma.h>
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#include <plasma/widgets/layout.h>
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namespace Plasma {
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/**
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* A layout which lays one item per border (left, top, bottom, right)
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* and one item in center.
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*
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* Similar to java.awt.BorderLayout from the Java's standard library
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*/
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class PLASMA_EXPORT BorderLayout : public Layout {
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public:
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explicit BorderLayout(LayoutItem * parent = 0);
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virtual ~BorderLayout();
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virtual Qt::Orientations expandingDirections() const;
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virtual QRectF geometry() const;
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void setGeometry(const QRectF& geometry);
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void invalidate();
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QSizeF sizeHint() const;
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/**
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* Adds item in the center. Equal to:
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* addItem(item, Plasma::CenterPositioned);
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*/
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void addItem(Plasma::LayoutItem * item);
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/**
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* Adds item at the specified position
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*/
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void addItem(Plasma::LayoutItem * item, Position position);
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void removeItem(Plasma::LayoutItem * item);
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virtual int count() const;
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virtual int indexOf(LayoutItem * item) const;
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virtual LayoutItem * itemAt(int i) const;
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virtual LayoutItem * takeAt(int i);
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/**
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* Deactivates the automatic sizing of a border widget,
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* and sets it to the specified size.
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*
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* For left and right widgets, it sets the width; while
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* for top and bottom ones, it sets the height.
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*/
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void setSize(qreal size, Position border);
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/**
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* Activates the automatic sizing of a border widget,
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* according to it's sizeHint()
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*/
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void setAutoSize(Position border);
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/**
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* Returns the size of the specified border widget. If
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* automatic sizing for that border widget is activated,
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* it will return a value less than zero.
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*/
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qreal size(Position border);
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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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#endif /* PLASMA_BORDER_LAYOUT */
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