qcommonstyle.cpp

奇趣公司比较新的qt/emd版本

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#include "qcommonstyle.h"
#include "qcommonstyle_p.h"

#include <qapplication.h>
#include <qbitmap.h>
#include <qcache.h>
#include <qdockwidget.h>
#include <qdrawutil.h>
#include <qdialogbuttonbox.h>
#include <qgroupbox.h>
#include <qmenu.h>
#include <qpainter.h>
#include <qpaintengine.h>
#include <qpainterpath.h>
#include <qslider.h>
#include <qstyleoption.h>
#include <qtabbar.h>
#include <qtoolbar.h>
#include <qtoolbutton.h>
#include <qrubberband.h>
#include <private/qcommonstylepixmaps_p.h>
#include <private/qmath_p.h>
#include <qdebug.h>
#include <qtextformat.h>
#include <qwizard.h>

#include <limits.h>

/*!
    \class QCommonStyle
    \brief The QCommonStyle class encapsulates the common Look and Feel of a GUI.

    \ingroup appearance

    This abstract class implements some of the widget's look and feel
    that is common to all GUI styles provided and shipped as part of
    Qt.

    Since QCommonStyle inherits QStyle, all of its functions are fully documented
    in the QStyle documentation.
    \omit
    , although the
    extra functions that QCommonStyle provides, e.g.
    drawComplexControl(), drawControl(), drawPrimitive(),
    hitTestComplexControl(), subControlRect(), sizeFromContents(), and
    subElementRect() are documented here.
    \endomit

    \sa QStyle, QMotifStyle, QWindowsStyle
*/

/*!
    Constructs a QCommonStyle.
*/
QCommonStyle::QCommonStyle()
    : QStyle(*new QCommonStylePrivate)
{ }

/*! \internal
*/
QCommonStyle::QCommonStyle(QCommonStylePrivate &dd)
    : QStyle(dd)
{ }

/*!
    \overload

    Destroys the style
*/
QCommonStyle::~QCommonStyle()
{ }


/*!
    \reimp
*/
void QCommonStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
                                 const QWidget *widget) const
{
    switch (pe) {
    case PE_FrameButtonBevel:
    case PE_FrameButtonTool:
        qDrawShadeRect(p, opt->rect, opt->palette,
                       opt->state & (State_Sunken | State_On), 1, 0);
        break;
    case PE_PanelButtonCommand:
    case PE_PanelButtonBevel:
    case PE_PanelButtonTool:
    case PE_IndicatorButtonDropDown:
        qDrawShadePanel(p, opt->rect, opt->palette,
                        opt->state & (State_Sunken | State_On), 1,
                        &opt->palette.brush(QPalette::Button));
        break;
    case PE_IndicatorViewItemCheck:
        drawPrimitive(PE_IndicatorCheckBox, opt, p, widget);
        break;
    case PE_IndicatorCheckBox:
        if (opt->state & State_NoChange) {
            p->setPen(opt->palette.foreground().color());
            p->fillRect(opt->rect, opt->palette.brush(QPalette::Button));
            p->drawRect(opt->rect);
            p->drawLine(opt->rect.topLeft(), opt->rect.bottomRight());
        } else {
            qDrawShadePanel(p, opt->rect.x(), opt->rect.y(), opt->rect.width(), opt->rect.height(),
                            opt->palette, opt->state & (State_Sunken | State_On), 1,
                            &opt->palette.brush(QPalette::Button));
        }
        break;
    case PE_IndicatorRadioButton: {
        QRect ir = opt->rect;
        p->setPen(opt->palette.dark().color());
        p->drawArc(opt->rect, 0, 5760);
        if (opt->state & (State_Sunken | State_On)) {
            ir.adjust(2, 2, -2, -2);
            p->setBrush(opt->palette.foreground());
            p->drawEllipse(ir);
        }
        break; }
    case PE_FrameFocusRect:
        if (const QStyleOptionFocusRect *fropt = qstyleoption_cast<const QStyleOptionFocusRect *>(opt)) {
            QColor bg = fropt->backgroundColor;
            QPen oldPen = p->pen();
            if (bg.isValid()) {
                int h, s, v;
                bg.getHsv(&h, &s, &v);
                if (v >= 128)
                    p->setPen(Qt::black);
                else
                    p->setPen(Qt::white);
            } else {
                p->setPen(opt->palette.foreground().color());
            }
            QRect focusRect = opt->rect.adjusted(1, 1, -1, -1);
            p->drawRect(focusRect.adjusted(0, 0, -1, -1)); //draw pen inclusive
            p->setPen(oldPen);
        }
        break;
    case PE_IndicatorMenuCheckMark: {
        const int markW = opt->rect.width() > 7 ? 7 : opt->rect.width();
        const int markH = markW;
        int posX = opt->rect.x() + (opt->rect.width() - markW)/2 + 1;
        int posY = opt->rect.y() + (opt->rect.height() - markH)/2;

        QVector<QLineF> a;
        a.reserve(markH);

        int i, xx, yy;
        xx = posX;
        yy = 3 + posY;
        for (i = 0; i < markW/2; ++i) {
            a << QLineF(xx, yy, xx, yy + 2);
            ++xx;
            ++yy;
        }
        yy -= 2;
        for (; i < markH; ++i) {
            a << QLineF(xx, yy, xx, yy + 2);
            ++xx;
            --yy;
        }
        if (!(opt->state & State_Enabled) && !(opt->state & State_On)) {
            int pnt;
            p->setPen(opt->palette.highlightedText().color());
            QPoint offset(1, 1);
            for (pnt = 0; pnt < a.size(); ++pnt)
                a[pnt].translate(offset.x(), offset.y());
            p->drawLines(a);
            for (pnt = 0; pnt < a.size(); ++pnt)
                a[pnt].translate(offset.x(), offset.y());
        }
        p->setPen(opt->palette.text().color());
        p->drawLines(a);
        break; }
    case PE_Frame:
    case PE_FrameMenu:
        if (const QStyleOptionFrame *frame = qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            if (pe == PE_FrameMenu || (frame->state & State_Sunken) || (frame->state & State_Raised)) {
                qDrawShadePanel(p, frame->rect, frame->palette, frame->state & State_Sunken,
                                frame->lineWidth);
            } else {
                qDrawPlainRect(p, frame->rect, frame->palette.foreground().color(), frame->lineWidth);
            }
        }
        break;
#ifndef QT_NO_TOOLBAR
    case PE_PanelMenuBar:
        if (widget && qobject_cast<QToolBar *>(widget->parentWidget()))
            break;
        if (const QStyleOptionFrame *frame = qstyleoption_cast<const QStyleOptionFrame *>(opt)){
            qDrawShadePanel(p, frame->rect, frame->palette, false, frame->lineWidth,
                            &frame->palette.brush(QPalette::Button));

        }
        else if (const QStyleOptionToolBar *frame = qstyleoption_cast<const QStyleOptionToolBar *>(opt)){
            qDrawShadePanel(p, frame->rect, frame->palette, false, frame->lineWidth,
                            &frame->palette.brush(QPalette::Button));
        }

        break;
   case PE_PanelToolBar:
       break;
#endif // QT_NO_TOOLBAR
#ifndef QT_NO_PROGRESSBAR
    case PE_IndicatorProgressChunk:
        {
            bool vertical = false;
            if (const QStyleOptionProgressBarV2 *pb2 = qstyleoption_cast<const QStyleOptionProgressBarV2 *>(opt))
                vertical = (pb2->orientation == Qt::Vertical);
            if (!vertical) {
                p->fillRect(opt->rect.x(), opt->rect.y() + 3, opt->rect.width() -2, opt->rect.height() - 6,
                            opt->palette.brush(QPalette::Highlight));
            } else {
                p->fillRect(opt->rect.x() + 2, opt->rect.y(), opt->rect.width() -6, opt->rect.height() - 2,
                            opt->palette.brush(QPalette::Highlight));
            }
        }
        break;
#endif // QT_NO_PROGRESSBAR
#ifdef QT3_SUPPORT
    case PE_Q3CheckListController:
#ifndef QT_NO_IMAGEFORMAT_XPM
        p->drawPixmap(opt->rect.topLeft(), QPixmap(check_list_controller_xpm));
#endif
        break;
    case PE_Q3CheckListExclusiveIndicator:
        if (const QStyleOptionQ3ListView *lv = qstyleoption_cast<const QStyleOptionQ3ListView *>(opt)) {
            if (lv->items.isEmpty())
                return;
            int x = lv->rect.x(),
                y = lv->rect.y();
#define INTARRLEN(x) sizeof(x)/(sizeof(int)*2)
            static const int pts1[] = {                // dark lines
                1,9, 1,8, 0,7, 0,4, 1,3, 1,2, 2,1, 3,1, 4,0, 7,0, 8,1, 9,1 };
            static const int pts2[] = {                // black lines
                2,8, 1,7, 1,4, 2,3, 2,2, 3,2, 4,1, 7,1, 8,2, 9,2 };
            static const int pts3[] = {                // background lines
                2,9, 3,9, 4,10, 7,10, 8,9, 9,9, 9,8, 10,7, 10,4, 9,3 };
            static const int pts4[] = {                // white lines
                2,10, 3,10, 4,11, 7,11, 8,10, 9,10, 10,9, 10,8, 11,7,
                11,4, 10,3, 10,2 };
            // static const int pts5[] = {                // inner fill
            //    4,2, 7,2, 9,4, 9,7, 7,9, 4,9, 2,7, 2,4 };
            //QPolygon a;

            if (lv->state & State_Enabled)
                p->setPen(lv->palette.text().color());
            else
                p->setPen(QPen(lv->viewportPalette.color(QPalette::Disabled, QPalette::Text)));
            QPolygon a(INTARRLEN(pts1), pts1);
            a.translate(x, y);
            //p->setPen(pal.dark());
            p->drawPolyline(a);
            a.setPoints(INTARRLEN(pts2), pts2);
            a.translate(x, y);
            p->drawPolyline(a);
            a.setPoints(INTARRLEN(pts3), pts3);
            a.translate(x, y);
            //                p->setPen(black);
            p->drawPolyline(a);
            a.setPoints(INTARRLEN(pts4), pts4);
            a.translate(x, y);
            //                        p->setPen(blue);
            p->drawPolyline(a);
            //                a.setPoints(INTARRLEN(pts5), pts5);
            //                a.translate(x, y);
            //        QColor fillColor = isDown() ? g.background() : g.base();
            //        p->setPen(fillColor);
            //        p->setBrush(fillColor);