#include <qpainter.h>#include "iconeditor.h"IconEditor::IconEditor(QWidget *parent, const char *name)    : QWidget(parent, name, WStaticContents){    setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);    curColor = black;    zoom = 8;    image.create(16, 16, 32);    image.fill(qRgba(0, 0, 0, 0));    image.setAlphaBuffer(true);}QSize IconEditor::sizeHint() const{    QSize size = zoom * image.size();    if (zoom >= 3)        size += QSize(1, 1);    return size;}void IconEditor::setPenColor(const QColor &newColor){    curColor = newColor;}void IconEditor::setIconImage(const QImage &newImage){    if (newImage != image) {        image = newImage.convertDepth(32);        image.detach();        update();        updateGeometry();    }}void IconEditor::setZoomFactor(int newZoom){    if (newZoom < 1)        newZoom = 1;    if (newZoom != zoom) {        zoom = newZoom;        update();        updateGeometry();    }}void IconEditor::paintEvent(QPaintEvent *){    QPainter painter(this);    if (zoom >= 3) {        painter.setPen(colorGroup().foreground());        for (int i = 0; i <= image.width(); ++i)            painter.drawLine(zoom * i, 0,                             zoom * i, zoom * image.height());        for (int j = 0; j <= image.height(); ++j)            painter.drawLine(0, zoom * j,                             zoom * image.width(), zoom * j);    }    for (int i = 0; i < image.width(); ++i) {        for (int j = 0; j < image.height(); ++j)            drawImagePixel(&painter, i, j);    }}void IconEditor::drawImagePixel(QPainter *painter, int i, int j){    QColor color;    QRgb rgb = image.pixel(i, j);    if (qAlpha(rgb) == 0)        color = colorGroup().base();    else        color.setRgb(rgb);    if (zoom >= 3) {        painter->fillRect(zoom * i + 1, zoom * j + 1,                          zoom - 1, zoom - 1, color);    } else {        painter->fillRect(zoom * i, zoom * j,                          zoom, zoom, color);    }}void IconEditor::mousePressEvent(QMouseEvent *event){    if (event->button() == LeftButton)        setImagePixel(event->pos(), true);    else if (event->button() == RightButton)        setImagePixel(event->pos(), false);}void IconEditor::mouseMoveEvent(QMouseEvent *event){    if (event->state() & LeftButton)        setImagePixel(event->pos(), true);    else if (event->state() & RightButton)        setImagePixel(event->pos(), false);}void IconEditor::setImagePixel(const QPoint &pos, bool opaque){    int i = pos.x() / zoom;    int j = pos.y() / zoom;    if (image.rect().contains(i, j)) {        if (opaque)            image.setPixel(i, j, penColor().rgb());        else            image.setPixel(i, j, qRgba(0, 0, 0, 0));        QPainter painter(this);        drawImagePixel(&painter, i, j);    }}