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Diffstat (limited to 'src/urlnavigatorbutton.cpp')
| -rw-r--r-- | src/urlnavigatorbutton.cpp | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/src/urlnavigatorbutton.cpp b/src/urlnavigatorbutton.cpp new file mode 100644 index 0000000..1cc5bcc --- /dev/null +++ b/src/urlnavigatorbutton.cpp @@ -0,0 +1,393 @@ +/*************************************************************************** + * Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) * + * Copyright (C) 2006 by Aaron J. Seigo (<aseigo@kde.org>) * + * * + * 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 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 General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ + +#include "urlnavigatorbutton.h" +#include <qcursor.h> +#include <qfontmetrics.h> +#include <qpainter.h> +#include <qtimer.h> +#include <qtooltip.h> + +#include <kglobalsettings.h> +#include <kiconloader.h> +#include <kio/jobclasses.h> +#include <klocale.h> +#include <kpopupmenu.h> +#include <kurl.h> +#include <kurldrag.h> +#include <assert.h> + +#include "urlnavigator.h" +#include "dolphinview.h" +#include "dolphin.h" + +URLNavigatorButton::URLNavigatorButton(int index, URLNavigator* parent) : + URLButton(parent), + m_index(-1), + m_listJob(0) +{ + setAcceptDrops(true); + setMinimumWidth(arrowWidth()); + setIndex(index); + connect(this, SIGNAL(clicked()), this, SLOT(updateNavigatorURL())); + + m_popupDelay = new QTimer(this); + connect(m_popupDelay, SIGNAL(timeout()), this, SLOT(startListJob())); + connect(this, SIGNAL(pressed()), this, SLOT(startPopupDelay())); +} + +URLNavigatorButton::~URLNavigatorButton() +{ +} + +void URLNavigatorButton::setIndex(int index) +{ + if (index < 0) { + index = 0; + } + + m_index = index; + QString path(urlNavigator()->url().prettyURL()); + setText(path.section('/', index, index)); + + // Check whether the button indicates the full path of the URL. If + // this is the case, the button is marked as 'active'. + ++index; + QFont adjustedFont(font()); + if (path.section('/', index, index).isEmpty()) { + setDisplayHintEnabled(ActivatedHint, true); + adjustedFont.setBold(true); + } + else { + setDisplayHintEnabled(ActivatedHint, false); + adjustedFont.setBold(false); + } + + setFont(adjustedFont); + update(); +} + +int URLNavigatorButton::index() const +{ + return m_index; +} + +void URLNavigatorButton::drawButton(QPainter* painter) +{ + const int buttonWidth = width(); + const int buttonHeight = height(); + + QColor backgroundColor; + QColor foregroundColor; + const bool isHighlighted = isDisplayHintEnabled(EnteredHint) || + isDisplayHintEnabled(DraggedHint) || + isDisplayHintEnabled(PopupActiveHint); + if (isHighlighted) { + backgroundColor = KGlobalSettings::highlightColor(); + foregroundColor = KGlobalSettings::highlightedTextColor(); + } + else { + backgroundColor = colorGroup().background(); + foregroundColor = KGlobalSettings::buttonTextColor(); + } + + // dimm the colors if the parent view does not have the focus + const DolphinView* parentView = urlNavigator()->dolphinView(); + const Dolphin& dolphin = Dolphin::mainWin(); + + const bool isActive = (dolphin.activeView() == parentView); + if (!isActive) { + QColor dimmColor(colorGroup().background()); + foregroundColor = mixColors(foregroundColor, dimmColor); + if (isHighlighted) { + backgroundColor = mixColors(backgroundColor, dimmColor); + } + } + + // draw button background + painter->setPen(NoPen); + painter->setBrush(backgroundColor); + painter->drawRect(0, 0, buttonWidth, buttonHeight); + + int textWidth = buttonWidth; + if (isDisplayHintEnabled(ActivatedHint) && isActive || isHighlighted) { + painter->setPen(foregroundColor); + } + else { + // dimm the foreground color by mixing it with the background + foregroundColor = mixColors(foregroundColor, backgroundColor); + painter->setPen(foregroundColor); + } + + if (!isDisplayHintEnabled(ActivatedHint)) { + // draw arrow + const int border = 2; // horizontal border + const int middleY = height() / 2; + const int width = arrowWidth(); + const int startX = (buttonWidth - width) - (2 * border); + const int startTopY = middleY - (width - 1); + const int startBottomY = middleY + (width - 1); + for (int i = 0; i < width; ++i) { + painter->drawLine(startX, startTopY + i, startX + i, startTopY + i); + painter->drawLine(startX, startBottomY - i, startX + i, startBottomY - i); + } + + textWidth = startX - border; + } + + const bool clipped = isTextClipped(); + const int align = clipped ? Qt::AlignVCenter : Qt::AlignCenter; + painter->drawText(QRect(0, 0, textWidth, buttonHeight), align, text()); + + if (clipped) { + // Blend the right area of the text with the background, as the + // text is clipped. + // TODO: use alpha blending in Qt4 instead of drawing the text that often + const int blendSteps = 16; + + QColor blendColor(backgroundColor); + const int redInc = (foregroundColor.red() - backgroundColor.red()) / blendSteps; + const int greenInc = (foregroundColor.green() - backgroundColor.green()) / blendSteps; + const int blueInc = (foregroundColor.blue() - backgroundColor.blue()) / blendSteps; + for (int i = 0; i < blendSteps; ++i) { + painter->setClipRect(QRect(textWidth - i, 0, 1, buttonHeight)); + painter->setPen(blendColor); + painter->drawText(QRect(0, 0, textWidth, buttonHeight), align, text()); + + blendColor.setRgb(blendColor.red() + redInc, + blendColor.green() + greenInc, + blendColor.blue() + blueInc); + } + } +} + +void URLNavigatorButton::enterEvent(QEvent* event) +{ + URLButton::enterEvent(event); + + // if the text is clipped due to a small window width, the text should + // be shown as tooltip + if (isTextClipped()) { + QToolTip::add(this, text()); + } +} + +void URLNavigatorButton::leaveEvent(QEvent* event) +{ + URLButton::leaveEvent(event); + QToolTip::remove(this); +} + +void URLNavigatorButton::dropEvent(QDropEvent* event) +{ + KURL::List urls; + if (KURLDrag::decode(event, urls) && !urls.isEmpty()) { + setDisplayHintEnabled(DraggedHint, true); + + QString path(urlNavigator()->url().prettyURL()); + path = path.section('/', 0, m_index); + + Dolphin::mainWin().dropURLs(urls, KURL(path)); + + setDisplayHintEnabled(DraggedHint, false); + update(); + } +} + +void URLNavigatorButton::dragEnterEvent(QDragEnterEvent* event) +{ + event->accept(KURLDrag::canDecode(event)); + + setDisplayHintEnabled(DraggedHint, true); + update(); +} + +void URLNavigatorButton::dragLeaveEvent(QDragLeaveEvent* event) +{ + URLButton::dragLeaveEvent(event); + + setDisplayHintEnabled(DraggedHint, false); + update(); +} + + +void URLNavigatorButton::updateNavigatorURL() +{ + URLNavigator* navigator = urlNavigator(); + assert(navigator != 0); + navigator->setURL(navigator->url(m_index)); +} + +void URLNavigatorButton::startPopupDelay() +{ + if (m_popupDelay->isActive() || m_listJob) { + return; + } + + m_popupDelay->start(300, true); +} + +void URLNavigatorButton::stopPopupDelay() +{ + m_popupDelay->stop(); + if (m_listJob) { + m_listJob->kill(); + m_listJob = 0; + } +} + +void URLNavigatorButton::startListJob() +{ + if (m_listJob) { + return; + } + + KURL url = urlNavigator()->url(m_index); + m_listJob = KIO::listDir(url, false, false); + m_subdirs.clear(); // just to be ++safe + + connect(m_listJob, SIGNAL(entries(KIO::Job*, const KIO::UDSEntryList &)), + this, SLOT(entriesList(KIO::Job*, const KIO::UDSEntryList&))); + connect(m_listJob, SIGNAL(result(KIO::Job*)), this, SLOT(listJobFinished(KIO::Job*))); +} + +void URLNavigatorButton::entriesList(KIO::Job* job, const KIO::UDSEntryList& entries) +{ + if (job != m_listJob) { + return; + } + + KIO::UDSEntryList::const_iterator it = entries.constBegin(); + KIO::UDSEntryList::const_iterator itEnd = entries.constEnd(); + while (it != itEnd) { + QString name; + bool isDir = false; + KIO::UDSEntry entry = *it; + KIO::UDSEntry::const_iterator atomIt = entry.constBegin(); + KIO::UDSEntry::const_iterator atomEndIt = entry.constEnd(); + + while (atomIt != atomEndIt) { + switch ((*atomIt).m_uds) { + case KIO::UDS_NAME: + name = (*atomIt).m_str; + break; + case KIO::UDS_FILE_TYPE: + isDir = S_ISDIR((*atomIt).m_long); + break; + default: + break; + } + ++atomIt; + } + + if (isDir) { + m_subdirs.append(name); + } + + ++it; + } + + m_subdirs.sort(); +} + +void URLNavigatorButton::listJobFinished(KIO::Job* job) +{ + if (job != m_listJob) { + return; + } + + if (job->error() || m_subdirs.isEmpty()) { + // clear listing + return; + } + + setDisplayHintEnabled(PopupActiveHint, true); + update(); // ensure the button is drawn highlighted + QPopupMenu* dirsMenu = new QPopupMenu(this); + //setPopup(dirsMenu); + QStringList::const_iterator it = m_subdirs.constBegin(); + QStringList::const_iterator itEnd = m_subdirs.constEnd(); + int i = 0; + while (it != itEnd) { + dirsMenu->insertItem(*it, i); + ++i; + ++it; + } + + int result = dirsMenu->exec(urlNavigator()->mapToGlobal(geometry().bottomLeft())); + + if (result >= 0) { + KURL url = urlNavigator()->url(m_index); + url.addPath(*m_subdirs.at(result)); + urlNavigator()->setURL(url); + } + + m_listJob = 0; + m_subdirs.clear(); + delete dirsMenu; + setDisplayHintEnabled(PopupActiveHint, false); +} + +int URLNavigatorButton::arrowWidth() const +{ + int width = (height() / 2) - 7; + if (width < 4) { + width = 4; + } + return width; +} + +bool URLNavigatorButton::isTextClipped() const +{ + int availableWidth = width(); + if (!isDisplayHintEnabled(ActivatedHint)) { + availableWidth -= arrowWidth() + 1; + } + + QFontMetrics fontMetrics(font()); + return fontMetrics.width(text()) >= availableWidth; +} + + +void URLNavigatorButton::mousePressEvent(QMouseEvent * event) +{ + if (event->button() == LeftButton) + dragPos = event->pos(); + URLButton::mousePressEvent(event); +} + +void URLNavigatorButton::mouseMoveEvent(QMouseEvent * event) +{ + if (event->state() & LeftButton) { + int distance = (event->pos() - dragPos).manhattanLength(); + if (distance > QApplication::startDragDistance()*2)//don't start on small move (for submenu usability) + startDrag(); + } + URLButton::mouseMoveEvent(event); +} + +void URLNavigatorButton::startDrag() +{ + KURL url = urlNavigator()->url(m_index); + KURL::List lst; + lst.append( url ); + KURLDrag *drag = new KURLDrag(lst, this); + drag->drag(); +} |