qprintengine_win.cpp File Reference

#include "qprinter_p.h"
#include "qprintengine_win_p.h"
#include <limits.h>
#include <private/qfont_p.h>
#include <private/qfontengine_p.h>
#include <private/qpainter_p.h>
#include <qbitmap.h>
#include <qdebug.h>
#include <qvector.h>
#include <qpicture.h>
#include <private/qpicture_p.h>

Go to the source code of this file.

Functions
static void	draw_text_item_win (const QPointF &_pos, const QTextItemInt &ti, HDC hdc, bool convertToText, const QTransform &xform, const QPointF &topLeft)
static qreal	inchesToMM (double in)
QPrinter::PaperSize	mapDevmodePaperSize (int s)
static QPrinter::PaperSource	mapDevmodePaperSource (int s)
static int	mapPaperSizeDevmode (QPrinter::PaperSize s)
static int	mapPaperSourceDevmode (QPrinter::PaperSource s)
static qreal	mmToInches (double mm)
QPainterPath	qt_regionToPath (const QRegion &region)

Variables
struct {
QPrinter::PaperSize   qtSizeName
int   winSizeName
}	dmMapping []
struct {
QPrinter::PaperSource   qtSourceName
int   winSourceName
}	sources []

Function Documentation

draw_text_item_win()

static void draw_text_item_win ( const QPointF &  _pos, const QTextItemInt &  ti, HDC  hdc, bool  convertToText, const QTransform &  xform, const QPointF &  topLeft  )

static

Definition at line 1636 of file qprintengine_win.cpp.

Referenced by QWin32PrintEngine::drawTextItem().

{
    QFontEngine *fe = ti.fontEngine;
    QPointF baseline_pos = xform.inverted().map(xform.map(pos) - topLeft);

    SetTextAlign(hdc, TA_BASELINE);
    SetBkMode(hdc, TRANSPARENT);

    bool has_kerning = ti.f && ti.f->kerning();
    QFontEngineWin *winfe = (fe->type() == QFontEngine::Win) ? static_cast<QFontEngineWin *>(fe) : 0;

    HFONT hfont;
    bool ttf = false;

    if (winfe) {
        hfont = winfe->hfont;
        ttf = winfe->ttf;
    } else {
        hfont = (HFONT)GetStockObject(ANSI_VAR_FONT);
    }

    HGDIOBJ old_font = SelectObject(hdc, hfont);
    unsigned int options = (ttf && !convertToText) ? ETO_GLYPH_INDEX : 0;
    wchar_t *convertedGlyphs = (wchar_t *)ti.chars;
    QGlyphLayout glyphs = ti.glyphs;

    bool fast = !has_kerning && !(ti.flags & QTextItem::RightToLeft);
    for (int i = 0; fast && i < glyphs.numGlyphs; i++) {
        if (glyphs.offsets[i].x != 0 || glyphs.offsets[i].y != 0 || glyphs.justifications[i].space_18d6 != 0
            || glyphs.attributes[i].dontPrint) {
            fast = false;
            break;
        }
    }

#if !defined(Q_OS_WINCE)
    // Scale, rotate and translate here.
    XFORM win_xform;
    win_xform.eM11 = xform.m11();
    win_xform.eM12 = xform.m12();
    win_xform.eM21 = xform.m21();
    win_xform.eM22 = xform.m22();
    win_xform.eDx = xform.dx();
    win_xform.eDy = xform.dy();

    SetGraphicsMode(hdc, GM_ADVANCED);
    SetWorldTransform(hdc, &win_xform);
#endif

    if (fast) {
        // fast path
        QVarLengthArray<wchar_t> g(glyphs.numGlyphs);
        for (int i = 0; i < glyphs.numGlyphs; ++i)
            g[i] = glyphs.glyphs[i];
        ExtTextOut(hdc,
                   qRound(baseline_pos.x() + glyphs.offsets[0].x.toReal()),
                   qRound(baseline_pos.y() + glyphs.offsets[0].y.toReal()),
                   options, 0, convertToText ? convertedGlyphs : g.data(), glyphs.numGlyphs, 0);
    } else {
        QVarLengthArray<QFixedPoint> positions;
        QVarLengthArray<glyph_t> _glyphs;

        QTransform matrix = QTransform::fromTranslate(baseline_pos.x(), baseline_pos.y());
        ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags,
            _glyphs, positions);
        if (_glyphs.size() == 0) {
            SelectObject(hdc, old_font);
            return;
        }

        convertToText = convertToText && glyphs.numGlyphs == _glyphs.size();
        bool outputEntireItem = _glyphs.size() > 0;

        if (outputEntireItem) {
            options |= ETO_PDY;
            QVarLengthArray<INT> glyphDistances(_glyphs.size() * 2);
            QVarLengthArray<wchar_t> g(_glyphs.size());
            for (int i=0; i<_glyphs.size() - 1; ++i) {
                glyphDistances[i * 2] = qRound(positions[i + 1].x) - qRound(positions[i].x);
                glyphDistances[i * 2 + 1] = qRound(positions[i + 1].y) - qRound(positions[i].y);
                g[i] = _glyphs[i];
            }
            glyphDistances[(_glyphs.size() - 1) * 2] = 0;
            glyphDistances[(_glyphs.size() - 1) * 2 + 1] = 0;
            g[_glyphs.size() - 1] = _glyphs[_glyphs.size() - 1];
            ExtTextOut(hdc, qRound(positions[0].x), qRound(positions[0].y), options, 0,
                       convertToText ? convertedGlyphs : g.data(), _glyphs.size(),
                       glyphDistances.data());
        } else {
            int i = 0;
            while(i < _glyphs.size()) {
                wchar_t g = _glyphs[i];

                ExtTextOut(hdc, qRound(positions[i].x),
                           qRound(positions[i].y), options, 0,
                           convertToText ? convertedGlyphs + i : &g, 1, 0);
                ++i;
            }
        }
    }

#if !defined(Q_OS_WINCE)
        win_xform.eM11 = win_xform.eM22 = 1.0;
        win_xform.eM12 = win_xform.eM21 = win_xform.eDx = win_xform.eDy = 0.0;
        SetWorldTransform(hdc, &win_xform);
#endif

    SelectObject(hdc, old_font);
}

inchesToMM()

static qreal inchesToMM ( double  in )

inlinestatic

Definition at line 400 of file qprintengine_win.cpp.

Referenced by QWin32PrintEnginePrivate::getPageMargins().

{
    return in/0.039370147;
}

mapDevmodePaperSize()

QPrinter::PaperSize mapDevmodePaperSize

(

int

s

)

Definition at line 110 of file qprintengine_win.cpp.

Referenced by QWin32PrintEngine::property(), and QWin32PrintEnginePrivate::updateCustomPaperSize().

{
    int i = 0;
    while ((dmMapping[i].winSizeName > 0) && (dmMapping[i].winSizeName != s))
        i++;
    return dmMapping[i].qtSizeName;
}

mapDevmodePaperSource()

static QPrinter::PaperSource mapDevmodePaperSource ( int  s )

static

Definition at line 146 of file qprintengine_win.cpp.

Referenced by QWin32PrintEngine::property().

{
    int i = 0;
    while ((sources[i].winSourceName > 0) && (sources[i].winSourceName != s))
        i++;
    return sources[i].winSourceName ? sources[i].qtSourceName : (QPrinter::PaperSource) s;
}

mapPaperSizeDevmode()

static int mapPaperSizeDevmode ( QPrinter::PaperSize  s )

static

Definition at line 118 of file qprintengine_win.cpp.

Referenced by QWin32PrintEngine::setProperty().

{
    int i = 0;
 while ((dmMapping[i].winSizeName > 0) && (dmMapping[i].qtSizeName != s))
        i++;
    return dmMapping[i].winSizeName;
}

mapPaperSourceDevmode()

static int mapPaperSourceDevmode ( QPrinter::PaperSource  s )

static

Definition at line 154 of file qprintengine_win.cpp.

Referenced by QWin32PrintEngine::setProperty().

{
    int i = 0;
    while ((sources[i].qtSourceName >= 0) && (sources[i].qtSourceName != s))
        i++;
    return sources[i].winSourceName ? sources[i].winSourceName : s;
}

mmToInches()

static qreal mmToInches ( double  mm )

inlinestatic

Definition at line 395 of file qprintengine_win.cpp.

Referenced by QWin32PrintEnginePrivate::initDevRects(), QWin32PrintEngine::metric(), QWin32PrintEngine::property(), and QWin32PrintEnginePrivate::setPageMargins().

{
    return mm*0.039370147;
}

qt_regionToPath()

QPainterPath qt_regionToPath

(

const QRegion &

region

)

Definition at line 1160 of file qregion.cpp.

Referenced by QWin32PrintEngine::updateClipPath(), and QWin32PrintEngine::updateState().

{
    QPainterPath result;
    if (region.rectCount() == 1) {
        result.addRect(region.boundingRect());
        return result;
    }

    const QVector<QRect> rects = region.rects();

    QVarLengthArray<Segment> segments;
    segments.resize(4 * rects.size());

    const QRect *rect = rects.constData();
    const QRect *end = rect + rects.size();

    int lastRowSegmentCount = 0;
    Segment *lastRowSegments = 0;

    int lastSegment = 0;
    int lastY = 0;
    while (rect != end) {
        const int y = rect[0].y();
        int count = 0;
        while (&rect[count] != end && rect[count].y() == y)
            ++count;

        for (int i = 0; i < count; ++i) {
            int offset = lastSegment + i;
            segments[offset] = Segment(rect[i].topLeft());
            segments[offset += count] = Segment(rect[i].topRight() + QPoint(1, 0));
            segments[offset += count] = Segment(rect[i].bottomRight() + QPoint(1, 1));
            segments[offset += count] = Segment(rect[i].bottomLeft() + QPoint(0, 1));

            offset = lastSegment + i;
            for (int j = 0; j < 4; ++j)
                segments[offset + j * count].connect(segments[offset + ((j + 1) % 4) * count]);
        }

        if (lastRowSegments && lastY == y)
            mergeSegments(lastRowSegments, lastRowSegmentCount, &segments[lastSegment], count);

        lastRowSegments = &segments[lastSegment + 2 * count];
        lastRowSegmentCount = count;
        lastSegment += 4 * count;
        lastY = y + rect[0].height();
        rect += count;
    }

    for (int i = 0; i < lastSegment; ++i) {
        Segment *segment = &segments[i];
        if (!segment->added)
            addSegmentsToPath(segment, result);
    }

    return result;
}

Variable Documentation

dmMapping

const { ... } dmMapping[]

Referenced by mapDevmodePaperSize(), and mapPaperSizeDevmode().

qtSizeName

QPrinter::PaperSize qtSizeName

Definition at line 70 of file qprintengine_win.cpp.

Referenced by mapPaperSizeDevmode().

qtSourceName

QPrinter::PaperSource qtSourceName

Definition at line 128 of file qprintengine_win.cpp.

Referenced by mapPaperSourceDevmode().

sources

const { ... } sources[]

Initial value:

= {
    { DMBIN_ONLYONE,        QPrinter::OnlyOne },
    { DMBIN_LOWER,          QPrinter::Lower },
    { DMBIN_MIDDLE,         QPrinter::Middle },
    { DMBIN_MANUAL,         QPrinter::Manual },
    { DMBIN_ENVELOPE,       QPrinter::Envelope },
    { DMBIN_ENVMANUAL,      QPrinter::EnvelopeManual },
    { DMBIN_AUTO,           QPrinter::Auto },
    { DMBIN_TRACTOR,        QPrinter::Tractor },
    { DMBIN_SMALLFMT,       QPrinter::SmallFormat },
    { DMBIN_LARGEFMT,       QPrinter::LargeFormat },
    { DMBIN_LARGECAPACITY,  QPrinter::LargeCapacity },
    { DMBIN_CASSETTE,       QPrinter::Cassette },
    { DMBIN_FORMSOURCE,     QPrinter::FormSource },
    { 0, (QPrinter::PaperSource) -1 }
}

Referenced by mapDevmodePaperSource(), and mapPaperSourceDevmode().

winSizeName

int winSizeName

Definition at line 69 of file qprintengine_win.cpp.

Referenced by mapDevmodePaperSize(), and mapPaperSizeDevmode().

winSourceName

int winSourceName

Definition at line 127 of file qprintengine_win.cpp.

Referenced by mapDevmodePaperSource().