#include?“icanvas.h“
#include?
#include?ylePainter>
#include?
#include?
#include?
#include?

ICanvas::ICanvas（QWidget?*parent）?:?QWidget（parent）
{
????this->setMouseTracking（true）;
????this->setWindowIcon（QIcon（“:/images/canvas.ico“））;

????this->undoImages?=?new?ImageStack（50）;
????this->redoImages?=?new?ImageStack（50）;
????this->brush?=?ICanvas::iPencil;
????this->foregroundColor?=?Qt::black;
????this->backgroundColor?=?Qt::white;
????this->isMousePressed?=?false;
????this->setCursor（Qt::CrossCursor）;
????this->penWidth?=?1;
????this->eraserWidth?=?5;
????/*
????this->direction?=?new?D_Offset[8];
????this->direction[0]?=?D_Offset（-1?0）;
????this->direction[1]?=?D_Offset（-1?1）;
????this->direction[2]?=?D_Offset（0?1）;
????this->direction[3]?=?D_Offset（1?1）;
????this->direction[4]?=?D_Offset（1?0）;
????this->direction[5]?=?D_Offset（1?-1）;
????this->direction[6]?=?D_Offset（0?-1）;
????this->direction[7]?=?D_Offset（-1?-1）;
????*/
????this->direction?=?new?D_Offset[4];
????this->direction[0]?=?D_Offset（-1?0）;
????this->direction[1]?=?D_Offset（0?1）;
????this->direction[2]?=?D_Offset（1?0）;
????this->direction[3]?=?D_Offset（0?-1）;
}

ICanvas::~ICanvas（）
{
????delete?[]?direction;
}

void?ICanvas::initCanvas（）
{
????this->undoImages->clear（）;
????this->redoImages->clear（）;

????//?初始情況下壓一張空圖片入棧
????curPixmap?=?QPixmap（size（））;
????curPixmap.fill（this->backgroundColor）;
????curImage?=?curPixmap.toImage（）;
????undoImages->push（curImage）;
????this->update（）;
}

void?ICanvas::refreshPixmap（）
{
????if（undoImages->getSize（）?>?0）
????{
????????curPixmap?=?QPixmap::fromImage（curImage）;
????}
????else
????{
????????curPixmap?=?QPixmap（size（））;
????????curPixmap.fill（this->backgroundColor）;
????}

????if（this->brush?==?ICanvas::iPencil）
????{
????????//?鉛筆工具
????????QPainter?painter（&curPixmap）;?//?畫布
????????QPen?pen;??//?畫筆
????????pen.setColor（this->foregroundColor）;?//?設置為前景色
????????pen.setWidth（this->penWidth）;
????????painter.setPen（pen）;
????????for（int?i?=?1;?i?????????{
????????????painter.drawLine（trackPoints[i?-?1]?trackPoints[i]）;
????????}
????}
????else?if（this->brush?==?ICanvas::iStraight）
????{
????????//?直線工具
????????QPainter?painter（&curPixmap）;?//?畫布
????????QPen?pen;??//?畫筆
????????pen.setColor（this->foregroundColor）;?//?設置為前景色
????????pen.setWidth（this->penWidth）;
????????painter.setPen（pen）;
????????painter.drawLine（trackPoints[0]?trackPoints[trackPoints.size（）?-?1]）;
????}
????else?if（this->brush?==?ICanvas::iPolyline）
????{
????????//?折線工具
????????QPainter?painter（&curPixmap）;?//?畫布
????????QPen?pen;??//?畫筆
????????pen.setColor（this->foregroundColor）;?//?設置為前景色
????????pen.setWidth（this->penWidth）;
????????painter.setPen（pen）;
????????painter.drawLine（trackPoints[0]?trackPoints[trackPoints.size（）?-?1]）;
????}
????else?if（this->brush?==?ICanvas::i

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-09-13?10:32??iPaint4Qt5.5\
?????目錄???????????0??2015-09-13?10:32??iPaint4Qt5.5\IPaint\
?????文件???????11590??2015-09-08?18:50??iPaint4Qt5.5\IPaint\icanvas.cpp
?????文件????????2638??2015-09-13?10:27??iPaint4Qt5.5\IPaint\icanvas.h
?????目錄???????????0??2015-09-13?10:32??iPaint4Qt5.5\IPaint\images\
?????文件?????????875??2015-09-08?13:54??iPaint4Qt5.5\IPaint\imagestack.cpp
?????文件?????????882??2015-09-08?13:53??iPaint4Qt5.5\IPaint\imagestack.h
?????文件?????????200??2009-10-21?01:47??iPaint4Qt5.5\IPaint\images\background.png
?????文件??????325638??2009-04-29?04:43??iPaint4Qt5.5\IPaint\images\canvas.ico
?????文件?????????603??2009-06-02?02:54??iPaint4Qt5.5\IPaint\images\circle.png
?????文件?????????563??2009-06-02?02:53??iPaint4Qt5.5\IPaint\images\ellipse.png
?????文件?????????788??2009-06-02?02:53??iPaint4Qt5.5\IPaint\images\eraser.png
?????文件?????????702??2009-01-30?22:57??iPaint4Qt5.5\IPaint\images\exit.png
?????文件?????????732??2009-09-09?01:43??iPaint4Qt5.5\IPaint\images\fill.png
?????文件?????????207??2009-10-21?01:44??iPaint4Qt5.5\IPaint\images\foreground.png
?????文件?????????336??2009-09-10?00:21??iPaint4Qt5.5\IPaint\images\line.png
?????文件?????????514??2009-04-22?03:46??iPaint4Qt5.5\IPaint\images\new.png
?????文件?????????652??2009-04-22?03:47??iPaint4Qt5.5\IPaint\images\open.png
?????文件??????325638??2009-04-29?05:14??iPaint4Qt5.5\IPaint\images\paint.ico
?????文件?????????940??2009-05-21?00:23??iPaint4Qt5.5\IPaint\images\paint.png
?????文件?????????399??2009-07-27?10:22??iPaint4Qt5.5\IPaint\images\pencil.png
?????文件?????????529??2009-06-02?02:53??iPaint4Qt5.5\IPaint\images\polygon.png
?????文件?????????524??2015-06-30?04:53??iPaint4Qt5.5\IPaint\images\qt.png
?????文件?????????351??2009-06-02?02:53??iPaint4Qt5.5\IPaint\images\rectangle.png
?????文件?????????732??2009-04-22?04:21??iPaint4Qt5.5\IPaint\images\redo.png
?????文件?????????554??2009-04-22?04:03??iPaint4Qt5.5\IPaint\images\save.png
?????文件?????????768??2008-04-15?04:17??iPaint4Qt5.5\IPaint\images\saveAs.png
?????文件?????????720??2009-04-22?04:20??iPaint4Qt5.5\IPaint\images\undo.png
?????文件???????17934??2015-09-13?10:26??iPaint4Qt5.5\IPaint\ipaint.cpp
?????文件????????2291??2015-09-13?10:29??iPaint4Qt5.5\IPaint\ipaint.h
?????文件?????????462??2015-09-13?10:19??iPaint4Qt5.5\IPaint\IPaint.pro
............此處省略4個文件信息