qcommonstyle.cpp File Reference

#include "qcommonstyle.h"
#include "qcommonstyle_p.h"
#include <qfile.h>
#include <qapplication.h>
#include <qbitmap.h>
#include <qcache.h>
#include <qdockwidget.h>
#include <qdrawutil.h>
#include <qdialogbuttonbox.h>
#include <qformlayout.h>
#include <qgroupbox.h>
#include <qmath.h>
#include <qmenu.h>
#include <qpainter.h>
#include <qpaintengine.h>
#include <qpainterpath.h>
#include <qslider.h>
#include <qstyleoption.h>
#include <qtabbar.h>
#include <qtabwidget.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 <qfileinfo.h>
#include <qdir.h>
#include <qsettings.h>
#include <qpixmapcache.h>
#include <private/qguiplatformplugin_p.h>
#include <limits.h>
#include "private/qtextengine_p.h"
#include <private/qt_x11_p.h>
#include <private/qstylehelper_p.h>

Go to the source code of this file.

Functions
static QPolygonF	calcArrow (const QStyleOptionSlider *dial, qreal &a)
static void	drawArrow (const QStyle *style, const QStyleOptionToolButton *toolbutton, const QRect &rect, QPainter *painter, const QWidget *widget=0)
static uint	qt_intensity (uint r, uint g, uint b)
static QSizeF	viewItemTextLayout (QTextLayout &textLayout, int lineWidth)

Function Documentation

calcArrow()

static QPolygonF calcArrow ( const QStyleOptionSlider *  dial, qreal &  a  )

static

Definition at line 3068 of file qcommonstyle.cpp.

Referenced by QCommonStyle::drawComplexControl().

{
    int width = dial->rect.width();
    int height = dial->rect.height();
    int r = qMin(width, height) / 2;
    int currentSliderPosition = dial->upsideDown ? dial->sliderPosition : (dial->maximum - dial->sliderPosition);

    if (dial->maximum == dial->minimum)
        a = Q_PI / 2;
    else if (dial->dialWrapping)
        a = Q_PI * 3 / 2 - (currentSliderPosition - dial->minimum) * 2 * Q_PI
            / (dial->maximum - dial->minimum);
    else
        a = (Q_PI * 8 - (currentSliderPosition - dial->minimum) * 10 * Q_PI
            / (dial->maximum - dial->minimum)) / 6;

    int xc = width / 2;
    int yc = height / 2;

    int len = r - QStyleHelper::calcBigLineSize(r) - 5;
    if (len < 5)
        len = 5;
    int back = len / 2;

    QPolygonF arrow(3);
    arrow[0] = QPointF(0.5 + xc + len * qCos(a),
                       0.5 + yc - len * qSin(a));
    arrow[1] = QPointF(0.5 + xc + back * qCos(a + Q_PI * 5 / 6),
                       0.5 + yc - back * qSin(a + Q_PI * 5 / 6));
    arrow[2] = QPointF(0.5 + xc + back * qCos(a - Q_PI * 5 / 6),
                       0.5 + yc - back * qSin(a - Q_PI * 5 / 6));
    return arrow;
}

drawArrow()

static void drawArrow ( const QStyle *  style, const QStyleOptionToolButton *  toolbutton, const QRect &  rect, QPainter *  painter, const QWidget *  widget = 0  )

static

Definition at line 811 of file qcommonstyle.cpp.

Referenced by QCommonStyle::drawControl().

{
    QStyle::PrimitiveElement pe;
    switch (toolbutton->arrowType) {
    case Qt::LeftArrow:
        pe = QStyle::PE_IndicatorArrowLeft;
        break;
    case Qt::RightArrow:
        pe = QStyle::PE_IndicatorArrowRight;
        break;
    case Qt::UpArrow:
        pe = QStyle::PE_IndicatorArrowUp;
        break;
    case Qt::DownArrow:
        pe = QStyle::PE_IndicatorArrowDown;
        break;
    default:
        return;
    }
    QStyleOption arrowOpt;
    arrowOpt.rect = rect;
    arrowOpt.palette = toolbutton->palette;
    arrowOpt.state = toolbutton->state;
    style->drawPrimitive(pe, &arrowOpt, painter, widget);
}

qt_intensity()

static uint qt_intensity ( uint  r, uint  g, uint  b  )

inlinestatic

Definition at line 5974 of file qcommonstyle.cpp.

Referenced by QCommonStyle::generatedIconPixmap().

{
    // 30% red, 59% green, 11% blue
    return (77 * r + 150 * g + 28 * b) / 255;
}

viewItemTextLayout()

static QSizeF viewItemTextLayout ( QTextLayout &  textLayout, int  lineWidth  )

static

Definition at line 905 of file qcommonstyle.cpp.

Referenced by QCommonStylePrivate::viewItemDrawText().

{
    qreal height = 0;
    qreal widthUsed = 0;
    textLayout.beginLayout();
    while (true) {
        QTextLine line = textLayout.createLine();
        if (!line.isValid())
            break;
        line.setLineWidth(lineWidth);
        line.setPosition(QPointF(0, height));
        height += line.height();
        widthUsed = qMax(widthUsed, line.naturalTextWidth());
    }
    textLayout.endLayout();
    return QSizeF(widthUsed, height);
}