File indexing completed on 2024-05-12 05:46:34

 /* ============================================================
  * Author: Tom Albers <tomalbers@kde.nl>
  * Date  : 2005-01-01
  * Description :
  *
  * Copyright 2005 by Tom Albers <tomalbers@kde.nl>
  *
  * This program is free software; you can redistribute it
  * and/or modify it under the terms of the GNU General
  * Public License as published by the Free Software Foundation;
  * either version 2, 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.
  *
  * ============================================================ */
 
 #include "KisSqueezedComboBox.h"
 /** @file KisSqueezedComboBox.cpp */
 
 // Qt includes.
 
 #include <QComboBox>
 #include <QPair>
 #include <QTimer>
 #include <QStyle>
 #include <QApplication>
 #include <QResizeEvent>
 
 KisSqueezedComboBox::KisSqueezedComboBox(QWidget *parent, const char *name)
         : QComboBox(parent)
 {
     setObjectName(name);
     setMinimumWidth(100);
     m_timer = new QTimer(this);
     m_timer->setSingleShot(true);
     connect(m_timer, SIGNAL(timeout()),
             SLOT(slotTimeOut()));
 }
 
 KisSqueezedComboBox::~KisSqueezedComboBox()
 {
     delete m_timer;
 }
 
 bool KisSqueezedComboBox::contains(const QString& _text) const
 {
     if (_text.isEmpty())
         return false;
 
     for (QMap<int, QString>::const_iterator it = m_originalItems.begin() ; it != m_originalItems.end();
             ++it) {
         if (it.value() == _text) {
             return true;
         }
     }
     return false;
 }
 
 qint32 KisSqueezedComboBox::findOriginalText(const QString& text) const
 {
     for (int i = 0; i < m_originalItems.size(); i++) {
         if(m_originalItems.value(i) == text) {
             return i;
         }
     }
     return -1;
 }
 
 QStringList KisSqueezedComboBox::originalTexts() const
 {
     return m_originalItems.values();
 }
 
 void KisSqueezedComboBox::resetOriginalTexts(const QStringList &texts)
 {
     if (texts == m_originalItems.values()) return;
 
     clear();
     m_originalItems.clear();
 
     Q_FOREACH (const QString &item, texts) {
         addSqueezedItem(item);
     }
 }
 
 QSize KisSqueezedComboBox::sizeHint() const
 {
     ensurePolished();
     QFontMetrics fm = fontMetrics();
     int maxW = count() ? 18 : 7 * fm.boundingRect(QChar('x')).width() + 18;
     int maxH = qMax(fm.lineSpacing(), 14) + 2;
 
     QStyleOptionComboBox options;
     options.initFrom(this);
 
     return style()->sizeFromContents(QStyle::CT_ComboBox, &options, QSize(maxW, maxH), this);
 }
 
 void KisSqueezedComboBox::insertSqueezedItem(const QString& newItem, int index, QVariant userData)
 {
     m_originalItems[index] = newItem;
     QComboBox::insertItem(index, squeezeText(newItem, this), userData);
     setItemData(index, newItem, Qt::ToolTipRole);
 }
 
 void KisSqueezedComboBox::insertSqueezedItem(const QIcon &icon, const QString &newItem, int index, QVariant userData)
 {
     m_originalItems[index] = newItem;
     QComboBox::insertItem(index, icon, squeezeText(newItem, this), userData);
     setItemData(index, newItem, Qt::ToolTipRole);
 }
 
 void KisSqueezedComboBox::addSqueezedItem(const QString& newItem, QVariant userData)
 {
     insertSqueezedItem(newItem, count(), userData);
 }
 
 void KisSqueezedComboBox::addSqueezedItem(const QIcon &icon, const QString &newItem, QVariant userData)
 {
     insertSqueezedItem(icon, newItem, count(), userData);
 }
 
 void KisSqueezedComboBox::setCurrent(const QString& itemText)
 {
     qint32 itemIndex = findOriginalText(itemText);
     if (itemIndex >= 0) {
         setCurrentIndex(itemIndex);
     }
 }
 
 void KisSqueezedComboBox::resizeEvent(QResizeEvent *)
 {
     m_timer->start(200);
 }
 
 void KisSqueezedComboBox::slotTimeOut()
 {
     for (QMap<int, QString>::iterator it = m_originalItems.begin() ; it != m_originalItems.end();
             ++it) {
         setItemText(it.key(), squeezeText(it.value(), this));
     }
 }
 
 QString KisSqueezedComboBox::squeezeText(const QString& original, const QWidget *widget)
 {
     // not the complete widgetSize is usable. Need to compensate for that.
     int widgetSize = widget->width() - 30;
     QFontMetrics fm(widget->fontMetrics());
 
     // If we can fit the full text, return that.
     if (fm.boundingRect(original).width() < widgetSize)
         return(original);
 
     // We need to squeeze.
     QString sqItem = original; // prevent empty return value;
     widgetSize = widgetSize - fm.boundingRect("...").width();
     for (int i = 0 ; i != original.length(); ++i) {
         if ((int)fm.boundingRect(original.right(i)).width() > widgetSize) {
             sqItem = QString("..." + original.right(--i));
             break;
         }
     }
     return sqItem;
 }
 
 QString KisSqueezedComboBox::currentUnsqueezedText()
 {
     int curItem = currentIndex();
     return m_originalItems[curItem];
 }
 
 void KisSqueezedComboBox::removeSqueezedItem(int index)
 {
     removeItem(index);
     m_originalItems.remove(index);
 }