init
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Chenwenxuan
262
ui/qg_colorbox.cpp
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262
ui/qg_colorbox.cpp
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/****************************************************************************
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**
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** This file is part of the LibreCAD project, a 2D CAD program
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**
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** Copyright (C) 2010-2011 R. van Twisk (librecad@rvt.dds.nl)
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** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
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**
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file gpl-2.0.txt included in the
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** packaging of this file.
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**
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** This program 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 this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**
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** This copyright notice MUST APPEAR in all copies of the script!
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**
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**********************************************************************/
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#include "qg_colorbox.h"
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#include <QColorDialog>
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#include <QPainter>
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#include <QPixmap>
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#include "rs_color.h"
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/**
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* Default Constructor. You must call init manually if you choose
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* to use this constructor.
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*/
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QG_ColorBox::QG_ColorBox(QWidget* parent, const char* name)
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:QComboBox(parent)
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,currentColor(new RS_Color())
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,showByLayer(false)
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,showUnchanged(false)
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,unchanged(false)
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{
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setObjectName(name);
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setEditable ( false );
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}
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QG_ColorBox::~QG_ColorBox(){}
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/**
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* Constructor that calls init and provides a fully functional
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* combobox for choosing colors.
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*
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* @param showByLayer true: Show attribute ByLayer, ByBlock.
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*/
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QG_ColorBox::QG_ColorBox(bool showByLayer, bool showUnchanged,
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QWidget* parent, const char* name)
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: QComboBox(parent)
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,currentColor(new RS_Color())
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,unchanged(false)
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{
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setObjectName(name);
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setEditable ( false );
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init(showByLayer, showUnchanged);
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}
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/**
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* Initialisation (called from constructor or manually but only
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* once).
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*
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* @param showByLayer true: Show attribute ByLayer, ByBlock.
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*/
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void QG_ColorBox::init(bool showByLayer, bool showUnchanged) {
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this->showByLayer = showByLayer;
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this->showUnchanged = showUnchanged;
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if (showUnchanged) {
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addItem(QIcon(":/ui/color00.png"), tr("Unchanged"));
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}
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if (showByLayer) {
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addItem(QIcon(":/ui/color00.png"), tr("By Layer"));
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addItem(QIcon(":/ui/color00.png"), tr("By Block"));
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}
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addItem(QIcon(":/ui/colorxx.png"), tr("Custom"));
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//static colors starts here
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//addColor(QIcon(":/ui/color01.png"), red,Qt::red);
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QString red(tr("Red"));
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addColor(Qt::red,red);
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colorIndexStart=findText(red); // keep the starting point of static colors
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addColor(Qt::darkRed,tr("Dark Red"));
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addColor(Qt::yellow,tr("Yellow"));
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addColor(Qt::darkYellow,tr("Dark Yellow"));
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addColor(Qt::green,tr("Green"));
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addColor(Qt::darkGreen,tr("Dark Green"));
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addColor(Qt::cyan,tr("Cyan"));
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addColor(Qt::darkCyan,tr("Dark Cyan"));
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addColor(Qt::blue,tr("Blue"));
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addColor(Qt::darkBlue,tr("Dark Blue"));
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addColor(Qt::magenta,tr("Magenta"));
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addColor(Qt::darkMagenta,tr("Dark Magenta"));
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addItem(QIcon(":/ui/color07.png"), tr("Black / White"),QColor(Qt::black));
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//colorIndexBlack=findData(QColor(Qt::black)); //record the number for special color black/white
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//std::cout<<"colorIndexBlack="<<colorIndexBlack<<std::endl;
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addColor(Qt::gray,tr("Gray"));
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addColor(Qt::darkGray,tr("Dark Gray"));
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addColor(Qt::lightGray,tr("Light Gray"));
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//static colors ends here
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connect(this, SIGNAL(activated(int)),
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this, SLOT(slotColorChanged(int)));
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if (showUnchanged || showByLayer ) {
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setCurrentIndex(0);
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} else {
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setCurrentIndex(findData(QColor(Qt::black))); //default to Qt::black
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}
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slotColorChanged(currentIndex());
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}
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/**
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* Sets the color shown in the combobox to the given color.
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*/
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void QG_ColorBox::setColor(const RS_Color& color) {
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*currentColor = color;
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//std::cout<<"initial color: "<<color<<std::endl;
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int cIndex;
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if (color.isByLayer() && showByLayer) {
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cIndex=0;
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} else if (color.isByBlock() && showByLayer) {
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cIndex=1;
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} else {
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for(cIndex=colorIndexStart;cIndex< count() - 1;cIndex++) {
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//searching for the color, allowing difference up to 2
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QColor q(itemData(cIndex).value<QColor>());
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if( abs(q.red() - color.red())
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+abs(q.green() - color.green())
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+abs(q.blue() - color.blue()) <= 3
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) {
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break;
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}
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}
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/*color not found, default to "others...*/
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/* if(cIndex == count() - 1) {
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cIndex=findData(QColor(Qt::black)); //default to Qt::black
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}*/
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}
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setCurrentIndex(cIndex);
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//std::cout<<"Default color for choosing: cIndex="<<cIndex<<" "<<RS_Color(itemData(cIndex).value<QColor>())<<std::endl;
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if (currentIndex()!= count() -1 ) {
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slotColorChanged(currentIndex());
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}
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}
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/**
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* generate icon from color, then add to color box
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*/
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void QG_ColorBox::addColor(Qt::GlobalColor color, QString text)
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{
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QPixmap pixmap(":/ui/color00.png");
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int w = pixmap.width();
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int h = pixmap.height();
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QPainter painter(&pixmap);
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painter.fillRect(1, 1, w-2, h-2, color);
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addItem(QIcon(pixmap),text,QColor(color));
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}
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/**
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* Sets the color of the pixmap next to the "By Layer" item
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* to the given color.
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*/
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void QG_ColorBox::setLayerColor(const RS_Color& color) {
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if (! showByLayer ) return;
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QPixmap pixmap;
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pixmap = QPixmap(":/ui/color00.png");
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int w = pixmap.width();
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int h = pixmap.height();
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QPainter painter(&pixmap);
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painter.fillRect(1, 1, w-2, h-2, color);
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painter.end();
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setItemIcon(0, QIcon(pixmap));
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setItemText(0, tr("By Layer"));
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// needed for the first time a layer is added:
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if (currentIndex()!= count() -1 ) {
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slotColorChanged(currentIndex());
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}
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}
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/**
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* Called when the color has changed. This method
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* sets the current color to the value chosen or even
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* offers a dialog to the user that allows him/ her to
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* choose an individual color.
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*/
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void QG_ColorBox::slotColorChanged(int index) {
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currentColor->resetFlags();
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if (showUnchanged) {
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if (index==0) {
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unchanged = true;
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}
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else {
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unchanged = false;
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}
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}
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if (showByLayer) {
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switch (index-(int)showUnchanged) {
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case 0:
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*currentColor = RS_Color(RS2::FlagByLayer);
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break;
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case 1:
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*currentColor = RS_Color(RS2::FlagByBlock);
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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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if (itemText(index) == tr("Custom"))
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{
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RS_Color selectedColor = QColorDialog::getColor(*currentColor, this);
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if (selectedColor.isValid())
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*currentColor = selectedColor;
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}
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else if (index >= colorIndexStart)
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{
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if(index < count() )
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{
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QVariant q0=itemData(index);
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if(q0 != QVariant::Invalid )
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{
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*currentColor=itemData(index).value<QColor>();
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}
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else
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{
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*currentColor=Qt::black; //default to black color
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}
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}
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}
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emit colorChanged(*currentColor);
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}
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RS_Color QG_ColorBox::getColor() const{
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return *currentColor;
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}
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bool QG_ColorBox::isUnchanged() const{
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return unchanged;
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}
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