git.sesse.net Git - kdenlive/blob - src/choosecolorwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Till Theato (root@ttill.de)                     *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  18  ***************************************************************************/
  19
  20
  21 #include "choosecolorwidget.h"
  22 #include "colorpickerwidget.h"
  23
  24 #include <QLabel>
  25 #include <QHBoxLayout>
  26
  27 #include <KColorButton>
  28 #include <KLocalizedString>
  29 #include <kdeversion.h>
  30 #include <KDebug>
  31
  32 static QColor stringToColor(QString strColor)
  33 {
  34     bool ok = false;
  35     QColor color("black");
  36     int intval = 0;
  37     if (strColor.startsWith("0x")) {
  38         if (strColor.length() == 10) {
  39             // 0xRRGGBBAA
  40             intval = strColor.toUInt(&ok, 16);
  41             color.setRgb( ( intval >> 24 ) & 0xff,   // r
  42                           ( intval >> 16 ) & 0xff,   // g
  43                           ( intval >>  8 ) & 0xff,   // b
  44                           ( intval       ) & 0xff ); // a
  45         } else {
  46             // 0xRRGGBB, 0xRGB
  47             color.setNamedColor(strColor.replace(0, 2, "#"));
  48         }
  49     } else {
  50         if (strColor.length() == 9) {
  51             // #AARRGGBB
  52             strColor = strColor.replace('#', "0x");
  53             intval = strColor.toUInt(&ok, 16);
  54             color.setRgb( ( intval >> 16 ) & 0xff,   // r
  55                           ( intval >>  8 ) & 0xff,   // g
  56                           ( intval       ) & 0xff,   // b
  57                           ( intval >> 24 ) & 0xff ); // a
  58         } else if (strColor.length() == 8) {
  59             // 0xRRGGBB
  60             strColor = strColor.replace('#', "0x");
  61             color.setNamedColor(strColor);
  62         } else {
  63             // #RRGGBB, #RGB
  64             color.setNamedColor(strColor);
  65         }
  66     }
  67
  68     return color;
  69 }
  70
  71 static QString colorToString(const QColor &color, bool alpha)
  72 {
  73     QString colorStr;
  74     QTextStream stream(&colorStr);
  75     stream << "0x";
  76     stream.setIntegerBase(16);
  77     stream.setFieldWidth(2);
  78     stream.setFieldAlignment(QTextStream::AlignRight);
  79     stream.setPadChar('0');
  80     stream <<  color.red() << color.green() << color.blue();
  81     if (alpha) {
  82         stream << color.alpha();
  83     } else {
  84         // MLT always wants 0xRRGGBBAA format
  85         stream << "ff";
  86     }
  87     return colorStr;
  88 }
  89
  90 ChooseColorWidget::ChooseColorWidget(const QString &text, const QString &color, bool alphaEnabled, QWidget *parent) :
  91         QWidget(parent)
  92 {
  93     QHBoxLayout *layout = new QHBoxLayout(this);
  94     layout->setContentsMargins(0, 0, 0, 0);
  95     layout->setSpacing(0);
  96
  97     QLabel *label = new QLabel(text, this);
  98
  99     QWidget *rightSide = new QWidget(this);
 100     QHBoxLayout *rightSideLayout = new QHBoxLayout(rightSide);
 101     rightSideLayout->setContentsMargins(0, 0, 0, 0);
 102     rightSideLayout->setSpacing(0);
 103
 104     m_button = new KColorButton(stringToColor(color), rightSide);
 105 #if KDE_IS_VERSION(4,5,0)
 106     if (alphaEnabled) m_button->setAlphaChannelEnabled(alphaEnabled);
 107 #endif
 108 //     m_button->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
 109     ColorPickerWidget *picker = new ColorPickerWidget(rightSide);
 110
 111     layout->addWidget(label);
 112     layout->addWidget(rightSide);
 113     rightSideLayout->addWidget(m_button);
 114     rightSideLayout->addWidget(picker, 0, Qt::AlignRight);
 115
 116     connect(picker, SIGNAL(colorPicked(QColor)), this, SLOT(setColor(QColor)));
 117     connect(picker, SIGNAL(displayMessage(QString,int)), this, SIGNAL(displayMessage(QString,int)));
 118     connect(picker, SIGNAL(disableCurrentFilter(bool)), this, SIGNAL(disableCurrentFilter(bool)));
 119     connect(m_button, SIGNAL(changed(QColor)), this, SIGNAL(modified()));
 120 }
 121
 122 QString ChooseColorWidget::getColor() const
 123 {
 124     bool alphaChannel = false;
 125 #if KDE_IS_VERSION(4,5,0)
 126     alphaChannel = m_button->isAlphaChannelEnabled();
 127 #endif
 128     return colorToString(m_button->color(), alphaChannel);
 129 }
 130
 131 void ChooseColorWidget::setColor(const QColor& color)
 132 {
 133     m_button->setColor(color);
 134 }
 135
 136 #include "choosecolorwidget.moc"