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Diffstat (limited to 'kdeprint/treecombobox.cpp')
| -rw-r--r-- | kdeprint/treecombobox.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/kdeprint/treecombobox.cpp b/kdeprint/treecombobox.cpp new file mode 100644 index 000000000..e131d8c3c --- /dev/null +++ b/kdeprint/treecombobox.cpp @@ -0,0 +1,156 @@ +/* + * This file is part of the KDE libraries + * Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License version 2 as published by the Free Software Foundation. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + **/ + +#include "treecombobox.h" + +#include <qpainter.h> + +TreeListBoxItem::TreeListBoxItem(QListBox *lb, const QPixmap& pix, const QString& txt, bool oneBlock) + : QListBoxPixmap(pix, txt) +{ + if (oneBlock) + m_path = QStringList(txt); + else + m_path = QStringList::split('/', text(), false); + m_depth = m_path.count()-1; + m_child = m_next = m_parent = 0; + + // insert into QListBox + if (m_depth == 0) + { + TreeListBoxItem *item = static_cast<TreeListBoxItem*>(lb->item(0)); + while (item && item->m_next) + item = item->m_next; + lb->insertItem(this); + if (item) + item->m_next = this; + } + else + { + QString parentStr = txt.left(txt.length()-m_path[m_depth].length()-1); + TreeListBoxItem *parentItem = static_cast<TreeListBoxItem*>(lb->findItem(parentStr, Qt::ExactMatch)); + if (!parentItem) + { + // parent not found, add parent first into QListBox + parentItem = new TreeListBoxItem(lb, QPixmap(), parentStr); + } + // search last "child" of the parent item, to put the new one + // at the end + TreeListBoxItem *childItem = static_cast<TreeListBoxItem*>(parentItem), *prevItem = 0; + while (childItem->next()) + { + TreeListBoxItem *nextItem = static_cast<TreeListBoxItem*>(childItem->next()); + if (nextItem->m_depth >= m_depth) + { + childItem = nextItem; + if (childItem->m_depth == m_depth) + prevItem = childItem; + } + else + break; + } + // eventually insert item + lb->insertItem(this, childItem); + m_parent = parentItem; + if (prevItem) + prevItem->m_next = this; + else + parentItem->m_child = this; + } +} + +int TreeListBoxItem::width(const QListBox *lb) const +{ + int w = m_depth * stepSize() + 2; + if (pixmap()) + w += (pixmap()->width() + 2); + if (!m_path[m_depth].isEmpty()) + w += (lb->fontMetrics().width(m_path[m_depth]) + 2); + return QMAX(w, QListBoxPixmap::width(lb)); +} + +void TreeListBoxItem::paint(QPainter *p) +{ + if(!static_cast<TreeListBox*>(listBox())->m_painting) + { + QListBoxPixmap::paint(p); + return; + } + + const QPixmap *pix = pixmap(); + QRect r = p->viewport(); + int h = height(listBox()); + int xo = (m_depth * stepSize() + 2); + int yo = (pix ? (h-pix->height())/2 : 0); + + if (m_depth > 0) + { + QPen oldPen = p->pen(); + p->setPen(listBox()->colorGroup().mid()); + + TreeListBoxItem *item = this; + int s = xo-stepSize()/2; + p->drawLine(s, r.top(), s, h/2); + p->drawLine(s, h/2, s+stepSize()/2-2, h/2); + while (item->m_parent) + { + if (item->m_next) + p->drawLine(s, r.top(), s, h); + item = item->m_parent; + s -= stepSize(); + } + + p->setPen(oldPen); + } + if (pix) + { + p->drawPixmap(xo, yo, *pix); + xo += (pix->width() + 2); + } + p->drawText(xo, 0, r.width()-xo, height(listBox()), Qt::AlignLeft, m_path[m_depth]); +} + +//----------------------------------------------------------------------------------------- + +TreeListBox::TreeListBox(QWidget *parent, const char *name) + : QListBox(parent, name) +{ + m_painting = false; +} + +void TreeListBox::paintCell(QPainter *p, int row, int col) +{ + m_painting = true; + QListBox::paintCell(p, row, col); + m_painting = false; +} + +//----------------------------------------------------------------------------------------- + +TreeComboBox::TreeComboBox(QWidget *parent, const char *name) + : QComboBox(parent, name) +{ + m_listbox = new TreeListBox(this); + setListBox(m_listbox); +} + +void TreeComboBox::insertItem(const QPixmap& pix, const QString& txt, bool oneBlock) +{ + new TreeListBoxItem(m_listbox, pix, txt, oneBlock); +} |