diff --git a/IconEditor/IconEditor.pro b/IconEditor/IconEditor.pro
new file mode 100644
index 0000000..fe0e618
--- /dev/null
+++ b/IconEditor/IconEditor.pro
@@ -0,0 +1,20 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2014-11-13T20:10:26
+#
+#-------------------------------------------------
+
+QT += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = IconEditor
+TEMPLATE = app
+
+
+SOURCES += main.cpp\
+ iconeditor.cpp
+
+HEADERS += iconeditor.h
+
+FORMS += iconeditor.ui
diff --git a/IconEditor/IconEditor.pro.user b/IconEditor/IconEditor.pro.user
new file mode 100644
index 0000000..99593e7
--- /dev/null
+++ b/IconEditor/IconEditor.pro.user
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diff --git a/IconEditor/iconeditor.cpp b/IconEditor/iconeditor.cpp
new file mode 100644
index 0000000..97496c2
--- /dev/null
+++ b/IconEditor/iconeditor.cpp
@@ -0,0 +1,150 @@
+#include "iconeditor.h"
+#include "ui_iconeditor.h"
+
+IconEditor::IconEditor(QWidget *parent) :
+ QWidget(parent),
+ ui(new Ui::IconEditor)
+{
+ ui->setupUi(this);
+ //保留原窗口内容，防止重绘
+ setAttribute(Qt::WA_StaticContents);
+ //已经设置了窗口的最小大小(窗口可拉伸)
+ setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
+
+ //画笔的颜色设置为黑色
+ curColor = Qt::black;
+ //缩放因子设置为8，即每个像素会显示成一个8*8的正方形
+ zoom = 8;
+
+ //图标数据初始化为16*16的像素大小和32位的ARGB颜色格式
+ image = QImage(16, 16, QImage::Format_ARGB32);
+ //类似于RGB(0,0,0)的数据格式
+ image.fill(qRgba(0, 0, 0, 0));
+}
+
+IconEditor::~IconEditor()
+{
+ delete ui;
+}
+
+QSize IconEditor::sizeHint() const
+{
+ //缩放因子*像素大小 = 窗口部件的理想大小
+ QSize size = zoom * image.size();
+ //如果缩放因子大于3，则增加一个额外的像素，用来容纳网格线
+ if (zoom >= 3) {
+ size += QSize(1, 1);
+ }
+ return size;
+}
+
+void IconEditor::setpenColor(const QColor &newColor)
+{
+ curColor = newColor;
+}
+
+//编辑图像
+void IconEditor::seticonImage(const QImage &newImage)
+{
+ if (newImage != image) {
+ image = newImage.convertToFormat(QImage::Format_ARGB32);
+ //update会强制使用新的图像重绘窗口部件
+ update();
+ //通知窗口布局，窗口部件的大小已经改变了
+ updateGeometry();
+ }
+}
+
+//设置图像的缩放因子
+void IconEditor::setzoomFactor(int newZoom)
+{
+ if (newZoom < 1) {
+ newZoom = 1;
+ }
+ if (newZoom != zoom) {
+ zoom = newZoom;
+ update();
+ updateGeometry();
+ }
+}
+
+void IconEditor::paintEvent(QPaintEvent *event)
+{
+ QPainter painter(this);
+ //缩放因子大于3的情况下，重新画网格
+ if (zoom >= 3) {
+ //窗口部件的调色板palette
+ painter.setPen(palette().foreground().color());
+ 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) {
+ //返回像素坐标
+ QRect rect = pixelRect(i, j);
+ //绘制窗口颜色为白色
+ if (!event->region().intersected(rect).isEmpty()) {
+ QColor color = QColor::fromRgba(image.pixel(i, j));
+ if (color.alpha() < 255) {
+ painter.fillRect(rect, Qt::white);
+ }
+ painter.fillRect(rect, color);
+ }
+ }
+ }
+}
+
+QRect IconEditor::pixelRect(int i, int j) const
+{
+ if (zoom >= 3) {
+ return QRect(zoom * i + 1, zoom * j + 1, zoom - 1, zoom - 1);
+ } else {
+ return QRect(zoom * i, zoom * j, zoom, zoom);
+ }
+}
+void IconEditor::mousePressEvent(QMouseEvent *event)
+{
+ if (event->button() == Qt::LeftButton) {
+ //把鼠标选中的像素设置成当前画笔的颜色
+ setImagePixel(event->pos(), true);
+ } else if (event->button() == Qt::RightButton) {
+ //通过传递false，来清空这个像素
+ setImagePixel(event->pos(), false);
+ }
+}
+
+void IconEditor::mouseMoveEvent(QMouseEvent *event)
+{
+ if (event->button() & Qt::LeftButton) {
+ //鼠标选中后连续的设置像素
+ setImagePixel(event->pos(), true);
+ } else if (event->button() & Qt::RightButton) {
+ //鼠标选中后连续的清空像素
+ setImagePixel(event->pos(), false);
+ }
+}
+
+void IconEditor::setImagePixel(const QPoint &pos, bool opaque)
+{
+ //这里必须除以zoom，因为image.rect()是返回格子范围16*16,而pos则为像素的范围，存在缩放因子，所以扩大了zoom倍
+ int i = pos.x() / zoom;
+ int j = pos.y() / zoom;
+
+ if (image.rect().contains(i, j)) {
+ if (opaque) {
+ //设定一个像素
+ image.setPixel(i, j, penColor().rgba());
+ } else {
+ //清除一个像素
+ image.setPixel(i, j, qRgba(0, 0, 0, 0));
+ }
+ update(pixelRect(i, j));
+ }
+}
diff --git a/IconEditor/iconeditor.h b/IconEditor/iconeditor.h
new file mode 100644
index 0000000..9a44671
--- /dev/null
+++ b/IconEditor/iconeditor.h
@@ -0,0 +1,50 @@
+#ifndef ICONEDITOR_H
+#define ICONEDITOR_H
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+namespace Ui {
+class IconEditor;
+}
+
+class IconEditor : public QWidget
+{
+ Q_OBJECT
+ //使用Q_PROPERTY声明三个自定义属性，而每个属性均有一个数据类型QColor，一个读函数penColor和一个写函数setpenColor
+ Q_PROPERTY(QColor penColor READ penColor WRITE setpenColor)
+ Q_PROPERTY(QImage iconImage READ iconImage WRITE seticonImage)
+ Q_PROPERTY(int zoomFactor READ zoomFactor WRITE setzoomFactor)
+
+public:
+ explicit IconEditor(QWidget *parent = 0);
+ ~IconEditor();
+
+ void setpenColor(const QColor &newColor);
+ QColor penColor() const { return curColor; }
+ void setzoomFactor(int newZoom);
+ int zoomFactor() const { return zoom; }
+ void seticonImage(const QImage &newImage);
+ QImage iconImage() const { return image; }
+ QSize sizeHint() const;
+
+protected:
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+ void paintEvent(QPaintEvent *event);
+private:
+ void setImagePixel(const QPoint &pos, bool opaque);
+ QRect pixelRect(int i, int j) const;
+
+ Ui::IconEditor *ui;
+ //三个私有变量保存着属性的值
+ QColor curColor;
+ QImage image;
+ int zoom;
+};
+
+#endif // ICONEDITOR_H
diff --git a/IconEditor/iconeditor.ui b/IconEditor/iconeditor.ui
new file mode 100644
index 0000000..ebfdf74
--- /dev/null
+++ b/IconEditor/iconeditor.ui
@@ -0,0 +1,20 @@
+
+ IconEditor
+
+
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+ 0
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diff --git a/IconEditor/main.cpp b/IconEditor/main.cpp
new file mode 100644
index 0000000..23024c9
--- /dev/null
+++ b/IconEditor/main.cpp
@@ -0,0 +1,11 @@
+#include "iconeditor.h"
+#include
+
+int main(int argc, char *argv[])
+{
+ QApplication a(argc, argv);
+ IconEditor w;
+ w.show();
+
+ return a.exec();
+}