| [2] | 1 | /****************************************************************************
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| 2 | **
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| [846] | 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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| [561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com)
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| [2] | 6 | **
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| 7 | ** This file is part of the QtGui module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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| [561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| [2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| [561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at qt-info@nokia.com.
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| [2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #include "qcdestyle.h"
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| 43 |
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| 44 | #if !defined(QT_NO_STYLE_CDE) || defined(QT_PLUGIN)
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| 45 |
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| 46 | #include "qmenu.h"
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| 47 | #include "qapplication.h"
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| 48 | #include "qpainter.h"
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| 49 | #include "qdrawutil.h"
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| 50 | #include "qpixmap.h"
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| 51 | #include "qpalette.h"
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| 52 | #include "qwidget.h"
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| 53 | #include "qpushbutton.h"
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| 54 | #include "qscrollbar.h"
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| 55 | #include "qtabbar.h"
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| 56 | #include "qtabwidget.h"
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| 57 | #include "qlistview.h"
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| 58 | #include "qsplitter.h"
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| 59 | #include "qslider.h"
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| 60 | #include "qcombobox.h"
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| 61 | #include "qlineedit.h"
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| 62 | #include "qprogressbar.h"
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| 63 | #include "qimage.h"
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| 64 | #include "qfocusframe.h"
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| 65 | #include "qpainterpath.h"
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| 66 | #include "qdebug.h"
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| 67 | #include <limits.h>
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| 68 |
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| 69 | QT_BEGIN_NAMESPACE
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| 70 |
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| 71 | /*!
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| 72 | \class QCDEStyle
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| 73 | \brief The QCDEStyle class provides a CDE look and feel.
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| 74 |
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| 75 | \ingroup appearance
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| 76 |
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| 77 | This style provides a slightly improved Motif look similar to some
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| 78 | versions of the Common Desktop Environment (CDE). The main
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| 79 | differences are thinner frames and more modern radio buttons and
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| 80 | checkboxes. Together with a dark background and a bright
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| 81 | text/foreground color, the style looks quite attractive (at least
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| 82 | for Motif fans).
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| 83 |
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| 84 | Note that most of the functions provided by QCDEStyle are
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| 85 | reimplementations of QStyle functions; see QStyle for their
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| 86 | documentation. QCDEStyle provides overloads for drawControl() and
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| 87 | drawPrimitive() which are documented here.
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| 88 |
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| 89 | \img qcdestyle.png
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| 90 | \sa QWindowsXPStyle, QMacStyle, QWindowsStyle, QPlastiqueStyle, QMotifStyle
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| 91 | */
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| 92 |
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| 93 | /*!
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| 94 | Constructs a QCDEStyle.
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| 95 |
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| 96 | If \a useHighlightCols is false (the default), then the style will
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| 97 | polish the application's color palette to emulate the Motif way of
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| 98 | highlighting, which is a simple inversion between the base and the
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| 99 | text color.
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| 100 | */
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| 101 | QCDEStyle::QCDEStyle(bool useHighlightCols)
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| 102 | : QMotifStyle(useHighlightCols)
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| 103 | {
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| 104 | }
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| 105 |
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| 106 | /*!
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| 107 | Destroys the style.
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| 108 | */
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| 109 | QCDEStyle::~QCDEStyle()
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| 110 | {
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| 111 | }
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| 112 |
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| 113 |
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| 114 | /*!\reimp
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| 115 | */
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| 116 | int QCDEStyle::pixelMetric(PixelMetric metric, const QStyleOption *option,
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| 117 | const QWidget *widget) const
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| 118 | /*
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| 119 | int QCDEStyle::pixelMetric(PixelMetric metric, const QStyleOption *option,
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| 120 | const QWidget *widget) const
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| 121 | */
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| 122 | {
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| 123 | int ret = 0;
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| 124 |
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| 125 | switch(metric) {
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| 126 | case PM_MenuBarPanelWidth:
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| 127 | case PM_DefaultFrameWidth:
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| 128 | case PM_FocusFrameVMargin:
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| 129 | case PM_FocusFrameHMargin:
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| 130 | case PM_MenuPanelWidth:
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| 131 | case PM_SpinBoxFrameWidth:
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| 132 | case PM_MenuBarVMargin:
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| 133 | case PM_MenuBarHMargin:
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| 134 | case PM_DockWidgetFrameWidth:
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| 135 | ret = 1;
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| 136 | break;
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| 137 | case PM_ScrollBarExtent:
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| 138 | ret = 13;
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| 139 | break;
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| 140 | default:
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| 141 | ret = QMotifStyle::pixelMetric(metric, option, widget);
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| 142 | break;
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| 143 | }
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| 144 | return ret;
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| 145 | }
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| 146 |
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| 147 | /*!
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| 148 | \reimp
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| 149 | */
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| 150 | void QCDEStyle::drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
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| 151 | const QWidget *widget) const
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| 152 | {
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| 153 |
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| 154 | switch(element) {
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| 155 | case CE_MenuBarItem: {
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| 156 | if (opt->state & State_Selected) // active item
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| 157 | qDrawShadePanel(p, opt->rect, opt->palette, true, 1,
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| 158 | &opt->palette.brush(QPalette::Button));
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| 159 | else // other item
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| 160 | p->fillRect(opt->rect, opt->palette.brush(QPalette::Button));
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| 161 | QCommonStyle::drawControl(element, opt, p, widget);
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| 162 | break; }
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| 163 | case CE_RubberBand: {
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| 164 | p->save();
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| 165 | p->setClipping(false);
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| 166 | QPainterPath path;
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| 167 | path.addRect(opt->rect);
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| 168 | path.addRect(opt->rect.adjusted(2, 2, -2, -2));
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| 169 | p->fillPath(path, opt->palette.color(QPalette::Active, QPalette::Text));
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| 170 | p->restore();
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| 171 | break; }
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| 172 | default:
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| 173 | QMotifStyle::drawControl(element, opt, p, widget);
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| 174 | break;
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | /*!
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| 179 | \reimp
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| 180 | */
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| 181 | void QCDEStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
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| 182 | const QWidget *widget) const
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| 183 | {
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| 184 | switch(pe) {
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| 185 | case PE_IndicatorCheckBox: {
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| 186 | bool down = opt->state & State_Sunken;
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| 187 | bool on = opt->state & State_On;
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| 188 | bool showUp = !(down ^ on);
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| 189 | QBrush fill = (showUp || (opt->state & State_NoChange)) ? opt->palette.brush(QPalette::Button) : opt->palette.brush(QPalette::Mid);
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| 190 | qDrawShadePanel(p, opt->rect, opt->palette, !showUp, pixelMetric(PM_DefaultFrameWidth), &opt->palette.brush(QPalette::Button));
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| 191 |
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| 192 | if (on || (opt->state & State_NoChange)) {
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| 193 | QRect r = opt->rect;
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| 194 | QPolygon a(7 * 2);
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| 195 | int i, xx, yy;
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| 196 | xx = r.x() + 3;
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| 197 | yy = r.y() + 5;
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| 198 | if (opt->rect.width() <= 9) {
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| 199 | // When called from CE_MenuItem in QMotifStyle
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| 200 | xx -= 2;
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| 201 | yy -= 2;
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| 202 | }
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| 203 |
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| 204 | for (i = 0; i < 3; i++) {
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| 205 | a.setPoint(2 * i, xx, yy);
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| 206 | a.setPoint(2 * i + 1, xx, yy + 2);
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| 207 | xx++; yy++;
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| 208 | }
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| 209 | yy -= 2;
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| 210 | for (i = 3; i < 7; i++) {
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| 211 | a.setPoint(2 * i, xx, yy);
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| 212 | a.setPoint(2 * i + 1, xx, yy + 2);
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| 213 | xx++; yy--;
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| 214 | }
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| 215 | if (opt->state & State_NoChange)
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| 216 | p->setPen(opt->palette.dark().color());
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| 217 | else
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| 218 | p->setPen(opt->palette.foreground().color());
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| 219 | p->drawPolyline(a);
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| 220 | }
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| 221 | if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
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| 222 | p->fillRect(opt->rect, QBrush(p->background().color(), Qt::Dense5Pattern));
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| 223 | } break;
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| 224 | case PE_IndicatorRadioButton:
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| 225 | {
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| 226 | QRect r = opt->rect;
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| 227 | #define INTARRLEN(x) sizeof(x)/(sizeof(int)*2)
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| 228 | static const int pts1[] = { // up left lines
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| 229 | 1,9, 1,8, 0,7, 0,4, 1,3, 1,2, 2,1, 3,1, 4,0, 7,0, 8,1, 9,1 };
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| 230 | static const int pts4[] = { // bottom right lines
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| 231 | 2,10, 3,10, 4,11, 7,11, 8,10, 9,10, 10,9, 10,8, 11,7,
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| 232 | 11,4, 10,3, 10,2 };
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| 233 | static const int pts5[] = { // inner fill
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| 234 | 4,2, 7,2, 9,4, 9,7, 7,9, 4,9, 2,7, 2,4 };
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| 235 | bool down = opt->state & State_Sunken;
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| 236 | bool on = opt->state & State_On;
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| 237 | QPolygon a(INTARRLEN(pts1), pts1);
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| 238 |
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| 239 | //center when rect is larger than indicator size
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| 240 | int xOffset = 0;
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| 241 | int yOffset = 0;
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| 242 | int indicatorWidth = pixelMetric(PM_ExclusiveIndicatorWidth);
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| 243 | int indicatorHeight = pixelMetric(PM_ExclusiveIndicatorWidth);
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| 244 | if (r.width() > indicatorWidth)
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| 245 | xOffset += (r.width() - indicatorWidth)/2;
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| 246 | if (r.height() > indicatorHeight)
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| 247 | yOffset += (r.height() - indicatorHeight)/2;
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| 248 | p->translate(xOffset, yOffset);
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| 249 |
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| 250 | a.translate(r.x(), r.y());
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| 251 | QPen oldPen = p->pen();
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| 252 | QBrush oldBrush = p->brush();
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| 253 | p->setPen((down || on) ? opt->palette.dark().color() : opt->palette.light().color());
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| 254 | p->drawPolyline(a);
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| 255 | a.setPoints(INTARRLEN(pts4), pts4);
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| 256 | a.translate(r.x(), r.y());
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| 257 | p->setPen((down || on) ? opt->palette.light().color() : opt->palette.dark().color());
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| 258 | p->drawPolyline(a);
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| 259 | a.setPoints(INTARRLEN(pts5), pts5);
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| 260 | a.translate(r.x(), r.y());
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| 261 | QColor fillColor = on ? opt->palette.dark().color() : opt->palette.background().color();
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| 262 | p->setPen(fillColor);
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| 263 | p->setBrush(on ? opt->palette.brush(QPalette::Dark) :
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| 264 | opt->palette.brush(QPalette::Window));
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| 265 | p->drawPolygon(a);
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| 266 | if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
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| 267 | p->fillRect(opt->rect, QBrush(p->background().color(), Qt::Dense5Pattern));
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| 268 | p->setPen(oldPen);
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| 269 | p->setBrush(oldBrush);
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| 270 |
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| 271 | p->translate(-xOffset, -yOffset);
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| 272 |
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| 273 | } break;
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| 274 | default:
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| 275 | QMotifStyle::drawPrimitive(pe, opt, p, widget);
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| 276 | }
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| 277 | }
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| 278 |
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| 279 | /*!\reimp*/
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| 280 | QPalette QCDEStyle::standardPalette() const
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| 281 | {
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| 282 | QColor background(0xb6, 0xb6, 0xcf);
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| 283 | QColor light = background.lighter();
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| 284 | QColor mid = background.darker(150);
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| 285 | QColor dark = background.darker();
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| 286 | QPalette palette(Qt::black, background, light, dark, mid, Qt::black, Qt::white);
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| 287 | palette.setBrush(QPalette::Disabled, QPalette::WindowText, dark);
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| 288 | palette.setBrush(QPalette::Disabled, QPalette::Text, dark);
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| 289 | palette.setBrush(QPalette::Disabled, QPalette::ButtonText, dark);
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| 290 | palette.setBrush(QPalette::Disabled, QPalette::Base, background);
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| 291 | return palette;
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| 292 | }
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| 293 |
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| 294 | /*!
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| 295 | \internal
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| 296 | */
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| 297 | QIcon QCDEStyle::standardIconImplementation(StandardPixmap standardIcon, const QStyleOption *opt,
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| 298 | const QWidget *widget) const
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| 299 | {
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| 300 | return QMotifStyle::standardIconImplementation(standardIcon, opt, widget);
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| 301 | }
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| 302 |
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| 303 | QT_END_NAMESPACE
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| 304 |
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| 305 | #endif
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