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dolphin/src/urlnavigatorbutton.cpp

396 lines
12 KiB

/***************************************************************************
* 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 <tqcursor.h>
#include <tqfontmetrics.h>
#include <tqpainter.h>
#include <tqtimer.h>
#include <tqtooltip.h>
#include <tdeglobalsettings.h>
#include <kiconloader.h>
#include <tdeio/jobclasses.h>
#include <tdelocale.h>
#include <tdepopupmenu.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, TQT_SIGNAL(clicked()), this, TQT_SLOT(updateNavigatorURL()));
m_popupDelay = new TQTimer(this);
connect(m_popupDelay, TQT_SIGNAL(timeout()), this, TQT_SLOT(startListJob()));
connect(this, TQT_SIGNAL(pressed()), this, TQT_SLOT(startPopupDelay()));
}
URLNavigatorButton::~URLNavigatorButton()
{
}
void URLNavigatorButton::setIndex(int index)
{
if (index < 0) {
index = 0;
}
m_index = index;
TQString 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;
TQFont 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(TQPainter* painter)
{
const int buttonWidth = width();
const int buttonHeight = height();
TQColor backgroundColor;
TQColor foregroundColor;
const bool isHighlighted = isDisplayHintEnabled(EnteredHint) ||
isDisplayHintEnabled(DraggedHint) ||
isDisplayHintEnabled(PopupActiveHint);
if (isHighlighted) {
backgroundColor = TDEGlobalSettings::highlightColor();
foregroundColor = TDEGlobalSettings::highlightedTextColor();
}
else {
backgroundColor = colorGroup().background();
foregroundColor = TDEGlobalSettings::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) {
TQColor 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 ? TQt::AlignVCenter : TQt::AlignCenter;
painter->drawText(TQRect(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 TQt4 instead of drawing the text that often
const int blendSteps = 16;
TQColor 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(TQRect(textWidth - i, 0, 1, buttonHeight));
painter->setPen(blendColor);
painter->drawText(TQRect(0, 0, textWidth, buttonHeight), align, text());
blendColor.setRgb(blendColor.red() + redInc,
blendColor.green() + greenInc,
blendColor.blue() + blueInc);
}
}
}
void URLNavigatorButton::enterEvent(TQEvent* event)
{
URLButton::enterEvent(event);
// if the text is clipped due to a small window width, the text should
// be shown as tooltip
if (isTextClipped()) {
TQToolTip::add(this, text());
}
}
void URLNavigatorButton::leaveEvent(TQEvent* event)
{
URLButton::leaveEvent(event);
TQToolTip::remove(this);
}
void URLNavigatorButton::dropEvent(TQDropEvent* event)
{
KURL::List urls;
if (KURLDrag::decode(event, urls) && !urls.isEmpty()) {
setDisplayHintEnabled(DraggedHint, true);
TQString path(urlNavigator()->url().prettyURL());
path = path.section('/', 0, m_index);
Dolphin::mainWin().dropURLs(urls, KURL(path));
setDisplayHintEnabled(DraggedHint, false);
update();
}
}
void URLNavigatorButton::dragEnterEvent(TQDragEnterEvent* event)
{
event->accept(KURLDrag::canDecode(event));
setDisplayHintEnabled(DraggedHint, true);
update();
}
void URLNavigatorButton::dragLeaveEvent(TQDragLeaveEvent* 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 = TDEIO::listDir(url, false, false);
m_subdirs.clear(); // just to be ++safe
connect(m_listJob, TQT_SIGNAL(entries(TDEIO::Job*, const TDEIO::UDSEntryList &)),
this, TQT_SLOT(entriesList(TDEIO::Job*, const TDEIO::UDSEntryList&)));
connect(m_listJob, TQT_SIGNAL(result(TDEIO::Job*)), this, TQT_SLOT(listJobFinished(TDEIO::Job*)));
}
void URLNavigatorButton::entriesList(TDEIO::Job* job, const TDEIO::UDSEntryList& entries)
{
if (job != m_listJob) {
return;
}
TDEIO::UDSEntryList::const_iterator it = entries.constBegin();
TDEIO::UDSEntryList::const_iterator itEnd = entries.constEnd();
while (it != itEnd) {
TQString name;
bool isDir = false;
TDEIO::UDSEntry entry = *it;
TDEIO::UDSEntry::const_iterator atomIt = entry.constBegin();
TDEIO::UDSEntry::const_iterator atomEndIt = entry.constEnd();
while (atomIt != atomEndIt) {
switch ((*atomIt).m_uds) {
case TDEIO::UDS_NAME:
name = (*atomIt).m_str;
break;
case TDEIO::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(TDEIO::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
TQPopupMenu* dirsMenu = new TQPopupMenu(this);
//setPopup(dirsMenu);
TQStringList::const_iterator it = m_subdirs.constBegin();
TQStringList::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;
}
TQFontMetrics fontMetrics(font());
return fontMetrics.width(text()) >= availableWidth;
}
void URLNavigatorButton::mousePressEvent(TQMouseEvent * event)
{
if (event->button() == Qt::LeftButton)
dragPos = event->pos();
URLButton::mousePressEvent(event);
}
void URLNavigatorButton::mouseMoveEvent(TQMouseEvent * event)
{
if (event->state() & Qt::LeftButton) {
int distance = (event->pos() - dragPos).manhattanLength();
if (distance > TQApplication::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();
}
#include "urlnavigatorbutton.moc"