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768 lines
20 KiB
768 lines
20 KiB
/*
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* Copyright (C) 2015-2022 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QPoint>
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#include <QPointF>
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#include <QPainterPath>
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#include "UBDockPalette.h"
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#include "frameworks/UBPlatformUtils.h"
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#include "core/UBSettings.h"
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#include "core/UBApplication.h"
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#include "core/UBPreferencesController.h"
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#include "core/UBDownloadManager.h"
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#include "board/UBBoardController.h"
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#include "core/memcheck.h"
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/**
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* \brief The constructor
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*/
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UBDockPalette::UBDockPalette(eUBDockPaletteType paletteType, QWidget *parent, const char *name)
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:QWidget(parent, Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint)
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, mCurrentMode(eUBDockPaletteWidget_BOARD)
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, mOrientation(eUBDockOrientation_Left)
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, mPreferredWidth(100)
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, mPreferredHeight(100)
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, mCanResize(false)
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, mResized(false)
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, mCollapseWidth(150)
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, mLastWidth(-1)
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, mHTab(0)
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, mpStackWidget(NULL)
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, mpLayout(NULL)
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, mCurrentTab(0)
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, mPaletteType(paletteType)
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, mTabPalette(new UBTabDockPalette(this, parent))
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{
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setObjectName(name);
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mpLayout = new QVBoxLayout();
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setLayout(mpLayout);
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mpStackWidget = new QStackedWidget(this);
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mpLayout->addWidget(mpStackWidget);
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// clear the tab widgets
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mTabWidgets.clear();
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// We let 2 pixels in order to keep a small border for the resizing
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setMinimumWidth(0);
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if (parent)
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{
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setAttribute(Qt::WA_NoMousePropagation);
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setAttribute(Qt::WA_TranslucentBackground);
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}
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else
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{
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// standalone window
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setAttribute(Qt::WA_TranslucentBackground);
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}
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mBackgroundBrush = QBrush(UBSettings::paletteColor);
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// This is the only way to set the background as transparent!
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setStyleSheet("QWidget {background-color: transparent}");
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// Set the position of the tab
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onToolbarPosUpdated();
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connect(UBSettings::settings()->appToolBarPositionedAtTop, SIGNAL(changed(QVariant)), this, SLOT(onToolbarPosUpdated()));
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connect(UBDownloadManager::downloadManager(), SIGNAL(allDownloadsFinished()), this, SLOT(onAllDownloadsFinished()));
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connect(UBApplication::boardController,SIGNAL(documentSet(UBDocumentProxy*)),this,SLOT(onDocumentSet(UBDocumentProxy*)));
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connect(this,SIGNAL(pageSelectionChangedRequired()),UBApplication::boardController,SLOT(selectionChanged()));
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}
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/**
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* \brief The destructor
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*/
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UBDockPalette::~UBDockPalette()
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{
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if(NULL != mpStackWidget)
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{
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delete mpStackWidget;
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mpStackWidget = NULL;
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}
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if(NULL != mpLayout)
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{
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delete mpLayout;
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mpLayout = NULL;
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}
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}
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void UBDockPalette::onDocumentSet(UBDocumentProxy* documentProxy)
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{
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Q_UNUSED(documentProxy);
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}
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/**
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* \brief Get the current orientation
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* @return the current orientation
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*/
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eUBDockOrientation UBDockPalette::orientation()
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{
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return mOrientation;
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}
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/**
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* \brief Set the current orientation
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* @param orientation as the given orientation
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*/
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void UBDockPalette::setOrientation(eUBDockOrientation orientation)
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{
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// Set the size
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mOrientation = orientation;
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if(orientation == eUBDockOrientation_Left || orientation == eUBDockOrientation_Right)
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{
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setMaximumHeight(parentWidget()->height());
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setMinimumHeight(maximumHeight());
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}
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else if(orientation == eUBDockOrientation_Top || orientation == eUBDockOrientation_Bottom)
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{
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setMaximumWidth(parentWidget()->width());
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setMinimumWidth(maximumWidth());
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}
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}
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/**
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* \brief Handle the resize event
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* @param event as the resize event
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*/
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void UBDockPalette::resizeEvent(QResizeEvent *event)
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{
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Q_UNUSED(event);
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updateMaxWidth();
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if(parentWidget())
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{
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setMinimumHeight(parentWidget()->height());
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}
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// Set the position
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QPoint origin;
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switch(mOrientation)
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{
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case eUBDockOrientation_Right:
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origin.setX(parentWidget()->width() - this->width());
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origin.setY(0);
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break;
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case eUBDockOrientation_Bottom:
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// Not supported yet
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case eUBDockOrientation_Top:
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// Not supported yet
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case eUBDockOrientation_Left:
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default:
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origin.setX(0);
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origin.setY(0);
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break;
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}
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move(origin.x(), origin.y());
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moveTabs();
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}
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/**
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* \brief Handle the mouse enter event
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* @param event as the mouse event
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*/
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void UBDockPalette::enterEvent(QEvent *event)
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{
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Q_UNUSED(event);
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// We want to set the cursor as an arrow everytime it enters the palette
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setCursor(Qt::ArrowCursor);
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emit mouseEntered();
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}
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/**
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* \brief Handle the mouse leave event
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* @param event as the mouse event
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*/
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void UBDockPalette::leaveEvent(QEvent *event)
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{
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Q_UNUSED(event);
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// Restore the cursor to its previous shape
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unsetCursor();
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}
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/**
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* \brief Draw the palette
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* @param event as the paint event
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*/
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void UBDockPalette::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setPen(Qt::NoPen);
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painter.setBrush(mBackgroundBrush);
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QPainterPath path;
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path.setFillRule(Qt::WindingFill);
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int nbTabs = mTabWidgets.size();
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if(0 < nbTabs)
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{
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// First draw the BIG RECTANGLE (I write it big because the rectangle is big...)
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if(mOrientation == eUBDockOrientation_Left)
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{
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path.addRect(0.0, 0.0, width(), height());
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}
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else if(mOrientation == eUBDockOrientation_Right)
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{
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path.addRect(0.0, 0.0, width(), height());
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}
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painter.drawPath(path);
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}
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}
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/**
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* \brief Set the background brush
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* @param brush as the given brush
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*/
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void UBDockPalette::setBackgroundBrush(const QBrush &brush)
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{
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if (mBackgroundBrush != brush)
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{
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mBackgroundBrush = brush;
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update();
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}
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}
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/**
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* Get the border size
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* @return the border size
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*/
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int UBDockPalette::border()
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{
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return 15;
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}
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/**
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* \brief Get the radius size
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* @return the radius size
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*/
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int UBDockPalette::radius()
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{
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return 5;
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}
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/**
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* \brief Set the maximum width
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*/
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void UBDockPalette::updateMaxWidth()
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{
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// Only the inherited class will overload this method
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}
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/**
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* \brief Get the collapse width value
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* @return the collapse widht value
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*/
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int UBDockPalette::collapseWidth()
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{
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return mCollapseWidth;
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}
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/**
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* \brief collapse/expand automatically the palette after a click on its tab
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*/
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void UBDockPalette::tabClicked(int tabIndex)
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{
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// If the current tab is not the clicked one, show its content
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if(mCurrentTab != tabIndex)
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{
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showTabWidget(tabIndex);
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}
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// else collapse the palette
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else
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{
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toggleCollapseExpand();
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}
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mTabPalette->update();
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emit pageSelectionChangedRequired();
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}
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/**
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* \brief Show the tab widget related to the given index
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* @param tabIndex as the given index
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*/
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void UBDockPalette::showTabWidget(int tabIndex)
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{
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mpStackWidget->setCurrentIndex(tabIndex);
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mCurrentTab = tabIndex;
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// Update the current tab index
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if(NULL != (dynamic_cast<UBDockPaletteWidget*>(mpStackWidget->widget(tabIndex)))){
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mCrntTabWidget = dynamic_cast<UBDockPaletteWidget*>(mpStackWidget->widget(tabIndex))->name();
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}
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}
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/**
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* \brief Toggle the collapse / expand state
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*/
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void UBDockPalette::toggleCollapseExpand()
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{
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if(width() < mCollapseWidth)
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resize(mLastWidth,height());
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else{
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mLastWidth = width();
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update();
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resize(0,height());
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}
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}
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/**
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* \brief Set the tabs orientation
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* @param orientation as the given tabs orientation
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*/
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void UBDockPalette::setTabsOrientation(eUBDockTabOrientation orientation)
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{
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mTabsOrientation = orientation;
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}
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/**
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* \brief Update the tab position regarding the toolbar position (up or down)
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*/
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void UBDockPalette::onToolbarPosUpdated()
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{
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// Get the position of the tab
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if(UBSettings::settings()->appToolBarPositionedAtTop->get().toBool())
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{
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setTabsOrientation(eUBDockTabOrientation_Up);
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}
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else
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{
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setTabsOrientation(eUBDockTabOrientation_Down);
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}
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moveTabs();
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update();
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}
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/**
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* \brief Get the custom margin
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* @return the custom margin value
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*/
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int UBDockPalette::customMargin()
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{
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return 5;
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}
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/**
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* \brief Add the given tab widget
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* @param widget as the given widget
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*/
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void UBDockPalette::addTab(UBDockPaletteWidget *widget)
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{
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if(!mTabWidgets.contains(widget) && widget->visibleState())
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{
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widget->setVisible(true);
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mTabWidgets.append(widget);
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mpStackWidget->addWidget(widget);
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mpStackWidget->setCurrentWidget(widget);
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resizeTabs();
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update();
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}
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}
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/**
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* \brief Remove the given tab
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* @param widgetName as the tab widget name
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*/
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void UBDockPalette::removeTab(UBDockPaletteWidget* widget)
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{
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int nWidget = mTabWidgets.indexOf(widget);
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if( nWidget >= 0 )
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{
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mpStackWidget->removeWidget(widget);
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mTabWidgets.remove(nWidget);
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widget->hide();
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update();
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}
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resizeTabs();
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mCurrentTab = qMax(mCurrentTab - 1, 0);
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}
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/**
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* \brief Handle the resize request
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* @param event as the given resize request
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*/
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void UBDockPalette::onResizeRequest(QResizeEvent *event)
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{
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resizeEvent(event);
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}
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/**
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* \brief Get the tab spacing
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* @return the tab spacing
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*/
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int UBDockPalette::tabSpacing()
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{
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return 2;
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}
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/**
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* \brief Show the given widget
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* @param widgetName as the given widget name
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*/
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void UBDockPalette::onShowTabWidget(UBDockPaletteWidget* widget)
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{
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if (mRegisteredWidgets.contains(widget))
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{
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widget->setVisibleState(true);
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addTab(widget);
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moveTabs();
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}
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}
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/**
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* \brief Hide the given widget
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* @param widgetName as the given widget name
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*/
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void UBDockPalette::onHideTabWidget(UBDockPaletteWidget* widget)
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{
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if (mRegisteredWidgets.contains(widget))
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{
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widget->setVisibleState(false);
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removeTab(widget);
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moveTabs();
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}
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}
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/**
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* \brief Connect the show / hide signals of the widget related to this dock palette
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*/
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void UBDockPalette::connectSignals()
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{
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for(int i=0; i < mRegisteredWidgets.size(); i++)
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{
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connect(mRegisteredWidgets.at(i), SIGNAL(showTab(UBDockPaletteWidget*)), this, SLOT(onShowTabWidget(UBDockPaletteWidget*)));
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connect(mRegisteredWidgets.at(i), SIGNAL(hideTab(UBDockPaletteWidget*)), this, SLOT(onHideTabWidget(UBDockPaletteWidget*)));
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}
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}
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/**
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* \brief Register the given widget
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* @param widget as the given widget
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*/
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void UBDockPalette::registerWidget(UBDockPaletteWidget *widget)
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{
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if(!mRegisteredWidgets.contains(widget))
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{
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// Update the parent of this widget
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widget->setParent(this);
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mRegisteredWidgets.append(widget);
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// By default, the widget is hidden
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widget->hide();
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}
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}
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/**
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* \brief Handles the 'all download finished' notification
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*/
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void UBDockPalette::onAllDownloadsFinished()
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{
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for(int i=0; i<mTabWidgets.size(); i++){
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UBDockPaletteWidget* pW = mTabWidgets.at(i);
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if(NULL != pW && mCrntTabWidget == pW->name()){
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mpStackWidget->setCurrentWidget(pW);
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}
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}
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}
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void UBDockPalette::moveTabs()
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{
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int x = width();
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if (mOrientation == eUBDockOrientation_Right)
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{
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if (parentWidget())
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x = parentWidget()->width() - width() - border() * 2;
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}
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int y = border();
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if(eUBDockTabOrientation_Down == mTabsOrientation)
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{
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if (mOrientation == eUBDockOrientation_Right)
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{
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if (parentWidget())
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y = parentWidget()->height() - border()- mTabWidgets.size() * TABSIZE;
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}
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else
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y = height() - border()- mTabWidgets.size() * TABSIZE;
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}
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mHTab = y;
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mTabPalette->move(x,y + mTabPalette->mVerticalOffset);
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}
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void UBDockPalette::resizeTabs()
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{
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int numTabs = mTabWidgets.size();
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mTabPalette->setFixedSize(2 * border(), (numTabs * TABSIZE) + qMax(numTabs - 1, 0) * tabSpacing());
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}
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QRect UBDockPalette::getTabPaletteRect()
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{
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QRect tabsRect = mTabPalette->rect();
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QPoint topLeft = mTabPalette->mapToParent(tabsRect.topLeft());
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QPoint bottomRight = mTabPalette->mapToParent(tabsRect.bottomRight());
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return QRect(topLeft, bottomRight);
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}
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void UBDockPalette::assignParent(QWidget *widget)
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{
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setParent(widget);
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mTabPalette->setParent(widget);
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}
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void UBDockPalette::setVisible(bool visible)
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{
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QWidget::setVisible(visible);
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mTabPalette->setVisible(visible);
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}
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bool UBDockPalette::switchMode(eUBDockPaletteWidgetMode mode)
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{
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mLastOpenedTabForMode.insert(mCurrentMode, mpStackWidget->currentIndex());
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mCurrentMode = mode;
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bool hasVisibleElements = false;
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//-------------------------------//
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// get full palette widgets list, parse it, show all widgets for BOARD mode, and hide all other
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for(int i = 0; i < mRegisteredWidgets.size(); i++)
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{
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UBDockPaletteWidget* pNextWidget = mRegisteredWidgets.at(i);
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if( pNextWidget != NULL )
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{
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if( pNextWidget->visibleInMode(mode) )
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{
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addTab(pNextWidget);
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hasVisibleElements = true;
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}
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else
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{
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removeTab(pNextWidget);
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}
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}
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}
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//-------------------------------//
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if(mRegisteredWidgets.size() > 0)
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showTabWidget(mLastOpenedTabForMode.value(mCurrentMode));
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update();
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return hasVisibleElements;
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}
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UBTabDockPalette::UBTabDockPalette(UBDockPalette *dockPalette, QWidget *parent) :
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QWidget(parent)
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, dock(dockPalette)
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, mVerticalOffset(0)
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, mFlotable(false)
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{
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int numTabs = dock->mTabWidgets.size();
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resize(2 * dock->border(), (numTabs * TABSIZE) + qMax(numTabs - 1, 0) * dock->tabSpacing());
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setAttribute(Qt::WA_TranslucentBackground);
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}
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void UBTabDockPalette::paintEvent(QPaintEvent *)
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{
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int nTabs = dock->mTabWidgets.size();
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if (nTabs <= 0) {
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qDebug() << "not enough tabs";
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return;
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}
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setPen(Qt::NoPen);
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painter.setBrush(dock->mBackgroundBrush);
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int yFrom = 0;
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for (int i = 0; i < nTabs; i++) {
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UBDockPaletteWidget* pCrntWidget = dock->mTabWidgets.at(i);
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QPainterPath path;
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path.setFillRule(Qt::WindingFill);
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QPixmap iconPixmap;
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switch (dock->mOrientation) {
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case eUBDockOrientation_Left:
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path.addRect(0, yFrom, width() / 2, TABSIZE);
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path.addRoundedRect(0, yFrom, width(), TABSIZE, dock->radius(), dock->radius());
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if (pCrntWidget) {
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if(dock->mCollapseWidth >= dock->width()) {
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// Get the collapsed icon
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iconPixmap = pCrntWidget->iconToRight();
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} else {
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// Get the expanded icon
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iconPixmap = pCrntWidget->iconToLeft();
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}
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}
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break;
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case eUBDockOrientation_Right:
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path.addRect(width() /2, yFrom, width() / 2, TABSIZE);
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path.addRoundedRect(0, yFrom, width(), TABSIZE, dock->radius(), dock->radius());
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if (pCrntWidget) {
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if(dock->mCollapseWidth >= dock->width()) {
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// Get the collapsed icon
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iconPixmap = pCrntWidget->iconToLeft();
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} else {
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// Get the expanded icon
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iconPixmap = pCrntWidget->iconToRight();
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}
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}
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break;
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case eUBDockOrientation_Top: ;
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case eUBDockOrientation_Bottom: ;
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default:
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break;
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}
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painter.save();
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//QPixmap transparencyPix(":/images/tab_mask.png");
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if (dock->mCurrentTab != i) {
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//iconPixmap.setAlphaChannel(transparencyPix); // deprecated; removed for now, to be re-implemented
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QColor color(0x7F, 0x7F, 0x7F, 0x3F);
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painter.setBrush(QBrush(color));
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}
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painter.drawPath(path);
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painter.drawPixmap(2, yFrom + 2, width() - 4, TABSIZE - 4, iconPixmap);
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yFrom += (TABSIZE + dock->tabSpacing());
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painter.restore();
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}
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}
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UBTabDockPalette::~UBTabDockPalette()
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{
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}
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void UBTabDockPalette::mousePressEvent(QMouseEvent *event)
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{
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dock->mClickTime = QTime::currentTime();
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// The goal here is to verify if the user can resize the widget.
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// It is only possible to resize it if the border is selected
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QPoint p = event->pos();
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dock->mMousePressPos = p;
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dock->mResized = false;
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switch(dock->mOrientation) {
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case eUBDockOrientation_Left:
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dock->mCanResize = true;
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break;
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case eUBDockOrientation_Right:
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dock->mCanResize = true;
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break;
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case eUBDockOrientation_Top:
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// Not supported yet
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break;
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case eUBDockOrientation_Bottom:
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// Not supported yet
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break;
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default:
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break;
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}
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}
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void UBTabDockPalette::mouseMoveEvent(QMouseEvent *event)
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{
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QPoint p = event->pos();
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if(dock->mCanResize && ((dock->mMousePressPos - p).manhattanLength() > QApplication::startDragDistance()))
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{
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if (qAbs(dock->mMousePressPos.y() - p.y()) > 10 && mFlotable) {
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qDebug() << "y differences" << dock->mMousePressPos.y() << p.y();
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mVerticalOffset += p.y() - dock->mMousePressPos.y();
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move(this->pos().x(), p.y());
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}
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switch(dock->mOrientation) {
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case eUBDockOrientation_Left:
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p.setX(p.x() + dock->width());
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if(p.x() < dock->collapseWidth() && p.x() >= dock->minimumWidth()) {
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dock->update();
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dock->resize(0, dock->height());
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//dock->mLastWidth = dock->collapseWidth() + 1;
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dock->mResized = true;
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} else if (p.x() <= dock->maximumWidth() && p.x() >= dock->minimumWidth()) {
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dock->resize(p.x(), dock->height());
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dock->mResized = true;
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}
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break;
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case eUBDockOrientation_Right:
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p.setX(p.x() - 2 * dock->border());
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if((dock->x() + p.x() > dock->parentWidget()->width() - dock->collapseWidth()) && (dock->x() + p.x() < dock->parentWidget()->width())) {
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dock->update();
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dock->resize(0, dock->height());
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//dock->mLastWidth = dock->collapseWidth() + 1;
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dock->mResized = true;
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} else if((dock->x() + p.x() >= dock->parentWidget()->width() - dock->maximumWidth()) && (dock->x() + p.x() <= dock->parentWidget()->width() - dock->minimumWidth())) {
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dock->resize(dock->parentWidget()->width() - (dock->x() + p.x()), dock->height());
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dock->mResized = true;
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}
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break;
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case eUBDockOrientation_Top:
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case eUBDockOrientation_Bottom:
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if(p.y() <= dock->maximumHeight()) {
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dock->resize(width(), p.y());
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dock->mResized = true;
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}
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break;
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default:
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break;
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}
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}
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}
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void UBTabDockPalette::mouseReleaseEvent(QMouseEvent *event)
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{
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Q_UNUSED(event);
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if(!dock->mResized && dock->mClickTime.elapsed() < CLICKTIME) {
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int nbTabs = dock->mTabWidgets.size();
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int clickedTab = 0;
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// If the clicked position is in the tab, perform the related action
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if(dock->mMousePressPos.x() >= 0 &&
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dock->mMousePressPos.x() <= width() &&
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dock->mMousePressPos.y() >= 0 &&
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dock->mMousePressPos.y() <= nbTabs * TABSIZE + (nbTabs -1)*dock->tabSpacing()) {
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clickedTab = (dock->mMousePressPos.y()) / (TABSIZE + dock->tabSpacing());
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dock->tabClicked(clickedTab);
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}
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}
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dock->mCanResize = false;
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}
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