Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdevelop@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 346 insertions, 0 deletions

diff --git a/src/newui/buttonbar.cpp b/src/newui/buttonbar.cpp
new file mode 100644
index 00000000..8f60dabf
--- /dev/null
+++ b/src/newui/buttonbar.cpp
@@ -0,0 +1,346 @@
+/***************************************************************************
+ *   Copyright (C) 2004 by Alexander Dymo                                  *
+ *   adymo@kdevelop.org                                                    *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU Library General Public License as       *
+ *   published by the Free Software Foundation; either version 2 of the    *
+ *   License, or (at your option) any later version.                       *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this program; if not, write to the                 *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#include "buttonbar.h"
+
+#include <qlayout.h>
+
+#include <kdebug.h>
+#include <kconfig.h>
+#include <kstringhandler.h>
+#include <klocale.h>
+
+#include "button.h"
+
+namespace Ideal {
+
+//ButtonLayout class
+
+ButtonLayout::ButtonLayout(ButtonBar *parent, Direction d, int margin, int spacing, const char *name)
+    :QBoxLayout(parent, d, margin, spacing, name), m_buttonBar(parent)
+{
+}
+
+QSize ButtonLayout::minimumSize() const
+{
+    QSize size = QBoxLayout::minimumSize();
+
+    if (!m_buttonBar->autoResize())
+        return size;
+
+    switch (m_buttonBar->place())
+    {
+        case Ideal::Left:
+        case Ideal::Right:
+            return QSize(size.width(),0);
+            break;
+        case Ideal::Top:
+        case Ideal::Bottom:
+            return QSize(0,size.height());
+    }
+    return QBoxLayout::minimumSize();
+}
+
+
+
+//ButtonBar class
+
+
+ButtonBar::ButtonBar(Place place, ButtonMode mode, QWidget *parent, const char *name)
+    :QWidget(parent, name), m_place(place), l(0), m_shrinked(false), m_autoResize(true)
+{
+    switch (m_place)
+    {
+        case Ideal::Left:
+        case Ideal::Right:
+           l = new ButtonLayout(this, QBoxLayout::TopToBottom, 0, 0);
+            break;
+        case Ideal::Top:
+        case Ideal::Bottom:
+            l = new ButtonLayout(this, QBoxLayout::LeftToRight, 0, 0);
+            break;
+    }
+
+    l->setResizeMode(QLayout::Minimum);
+    setMode(mode);
+
+    l->insertStretch(-1);
+}
+
+ButtonBar::~ButtonBar()
+{
+}
+
+void ButtonBar::addButton(Button *button)
+{
+    int buttonCount = m_buttons.count();
+
+    button->setMode(m_mode);
+    m_buttons.append(button);
+    l->insertWidget(buttonCount, button);
+    button->show();
+    fixDimensions();
+}
+
+void ButtonBar::removeButton(Button *button)
+{
+    m_buttons.remove(button);
+    l->remove(button);
+    delete button;
+}
+
+void ButtonBar::setMode(ButtonMode mode)
+{
+    m_mode = mode;
+    for (ButtonList::iterator it = m_buttons.begin(); it != m_buttons.end(); ++it)
+        (*it)->setMode(mode);
+}
+
+ButtonMode ButtonBar::mode() const
+{
+    return m_mode;
+}
+
+Place ButtonBar::place() const
+{
+    return m_place;
+}
+
+void ButtonBar::fixDimensions()
+{
+    switch (m_place)
+    {
+        case Ideal::Left:
+        case Ideal::Right:
+            setFixedWidth(sizeHint().width());
+            setMinimumHeight(sizeHint().height());
+            setMaximumHeight(32767);
+            break;
+        case Ideal::Top:
+        case Ideal::Bottom:
+            setFixedHeight(sizeHint().height());
+            setMinimumWidth(sizeHint().width());
+            setMaximumWidth(32767);
+            break;
+    }
+}
+
+void ButtonBar::setButtonsPlace(Ideal::Place place)
+{
+    for (ButtonList::iterator it = m_buttons.begin(); it != m_buttons.end(); ++it)
+        (*it)->setPlace(place);
+}
+
+void ButtonBar::resizeEvent(QResizeEvent *ev)
+{
+    int preferredDimension = 0;
+    int actualDimension = 0;
+    int oldDimension = 0;
+    switch (m_place)
+    {
+        case Ideal::Left:
+        case Ideal::Right:
+            preferredDimension = l->QBoxLayout::minimumSize().height();
+            actualDimension = size().height();
+            oldDimension = ev->oldSize().height();
+            break;
+        case Ideal::Top:
+        case Ideal::Bottom:
+            preferredDimension = l->QBoxLayout::minimumSize().width();
+            actualDimension = size().width();
+            oldDimension = ev->oldSize().width();
+            break;
+    }
+
+    if (preferredDimension > actualDimension)
+        shrink(preferredDimension, actualDimension);
+    else if (m_shrinked && (originalDimension() < actualDimension))
+        unshrink();
+    else if (m_shrinked && actualDimension > oldDimension)
+        deshrink(preferredDimension, actualDimension);
+
+    QWidget::resizeEvent(ev);
+}
+
+void ButtonBar::shrink(int preferredDimension, int actualDimension)
+{
+    if (!preferredDimension)
+        return;
+
+    m_shrinked = true;
+
+    uint textLength = 0;
+    QValueList<uint> texts;
+    uint maxLength = 0;
+    for (ButtonList::const_iterator it = m_buttons.constBegin(); it != m_buttons.constEnd(); ++it)
+    {
+        uint length = (*it)->text().length();
+        maxLength = length > maxLength ? length : maxLength ;
+        texts.append(length);
+        textLength += length;
+    }
+
+    uint newPreferredLength = actualDimension * textLength / preferredDimension;
+
+    uint newMaxLength = maxLength;
+    uint newTextLength;
+    do {
+        newMaxLength -= 1;
+        newTextLength = 0;
+        for (QValueList<uint>::iterator it = texts.begin(); it != texts.end(); ++it)
+        {
+            if (*it > newMaxLength)
+                *it = newMaxLength;
+            newTextLength += *it;
+        }
+    } while (newTextLength > newPreferredLength);
+
+    int i = 0;
+    for (ButtonList::iterator it = m_buttons.begin(); it != m_buttons.end(); ++it)
+    {
+        (*it)->setText(KStringHandler::rsqueeze((*it)->realText(), texts[i++]));
+        (*it)->updateSize();
+    }
+}
+
+void ButtonBar::deshrink(int preferredDimension, int actualDimension)
+{
+    if (!preferredDimension)
+        return;
+
+    m_shrinked = true;
+
+    uint textLength = 0;
+    QValueList<uint> texts;
+    uint maxLength = 0;
+    for (ButtonList::const_iterator it = m_buttons.constBegin(); it != m_buttons.constEnd(); ++it)
+    {
+        uint length = (*it)->text().length();
+        maxLength = length > maxLength ? length : maxLength ;
+        texts.append(length);
+        textLength += length;
+    }
+
+    uint newPreferredLength = actualDimension * textLength / preferredDimension;
+
+    if (newPreferredLength <= textLength)
+        return;
+
+    uint newTextLength;
+    uint prevTextLength = 0;
+    do {
+        newTextLength = 0;
+        int i = 0;
+        for (QValueList<uint>::iterator it = texts.begin(); it != texts.end(); ++it, i++)
+        {
+            if (m_buttons[i]->text().contains("..."))
+                (*it)++;
+            newTextLength += *it;
+        }
+        if (newTextLength == prevTextLength)
+            break;
+        prevTextLength = newTextLength;
+    } while (newTextLength < newPreferredLength);
+
+    int i = 0;
+    for (ButtonList::iterator it = m_buttons.begin(); it != m_buttons.end(); ++it)
+    {
+        if (texts[i] >= (*it)->realText().length())
+            (*it)->setText((*it)->realText());
+        else
+            (*it)->setText(KStringHandler::rsqueeze((*it)->realText(), texts[i]));
+        (*it)->updateSize();
+        ++i;
+    }
+}
+
+void ButtonBar::unshrink()
+{
+    for (ButtonList::iterator it = m_buttons.begin(); it != m_buttons.end(); ++it)
+    {
+        (*it)->setText((*it)->realText());
+        (*it)->updateSize();
+    }
+    m_shrinked = false;
+}
+
+int ButtonBar::originalDimension()
+{
+    int size = 0;
+    for (ButtonList::const_iterator it = m_buttons.constBegin(); it != m_buttons.constEnd(); ++it)
+    {
+        size += (*it)->sizeHint((*it)->realText()).width();
+    }
+    return size;
+}
+
+bool ButtonBar::autoResize() const
+{
+    return m_autoResize;
+}
+
+void ButtonBar::setAutoResize(bool b)
+{
+    m_autoResize = b;
+}
+
+Button *ButtonBar::firstButton()
+{
+    if (!m_buttons.isEmpty())
+        return m_buttons.first();
+    return 0;
+}
+
+Button *ButtonBar::nextTo(Button *button)
+{
+    ButtonList::iterator it = m_buttons.find(button);
+    Button *next = 0;
+    if ((*it) == m_buttons.last())
+        next = m_buttons.first();
+    else
+    {
+        it++;
+        next = *it;
+    }
+    if (next->isVisible())
+        return next;
+    else
+        return nextTo(next);
+}
+
+Button *ButtonBar::prevTo(Button *button)
+{
+    ButtonList::iterator it = m_buttons.find(button);
+    Button *prev = 0;
+    if (it == m_buttons.begin())
+        prev = m_buttons.last();
+    else
+    {
+        it--;
+        prev = *it;
+    }
+    if (prev->isVisible())
+        return prev;
+    else
+        return prevTo(prev);
+}
+
+}
+
+#include "buttonbar.moc"