#include?“canvas.h“
#include?
#include
canvas::canvas（）
{
????Pixmap?=QPixmap（500400）;?//畫布的初始化大小設(shè)為500*400

????backColor=Qt::white;

????Pixmap.fill（backColor）;//畫布初始化背景色使用白色

????/*各標(biāo)志量初始化*/

????//px1=py1=px2=py2=0;

????shape_flage=0;

????ismoving=0;

????ischoose=0;

????iszooming=0;

????isfilling=0;

????modified=0;

????pen_Color=“黑色“;

????brush_Color=“白色“;

}



/*設(shè)置填充顏色*/

void?canvas::setBrushColor（QString?color）
{

????brush_Color=color;

}



/*設(shè)置畫筆顏色*/

void?canvas::setpenColor（QString?color）
{

???pen_Color=color;

}



/*保存畫布*/

bool?canvas::savePixmap（const?QString?&fileName?const?char?*fileFormat）
{
????QPixmap?visiblePixmap=Pixmap;

????if?（visiblePixmap.save（fileName?fileFormat））???//實(shí)現(xiàn)文件存儲(chǔ)

????{
????????modified=0;//畫布改變標(biāo)識(shí)變量置0

????????return?1;

????}

????else

????{

????????return?0;

????}

}



/*判斷畫布是否改變*/

?bool?canvas::get_modified（）
?{

?????return?modified;

?}



?/*重繪函數(shù)*/

void?canvas::paintEvent（QPaintEvent?*event）
{

????QPainter?pp（this）;

????pp.drawPixmap（00Pixmap）;//以為（00）原點(diǎn)畫出Pixmap上的內(nèi)容

}



/*鼠標(biāo)按下事件*/

void?canvas::mousePressEvent（QMouseEvent?*event）
{
????/*如果按下左鍵則將該店位置坐標(biāo)傳給起始坐標(biāo)*/

????if（event->button（）==Qt::LeftButton）//鼠標(biāo)按下左鍵

????{
????????begin=event->pos（）;//該點(diǎn)坐標(biāo)賦給begin

????????if（ismoving==0&&iszooming==0）//如果進(jìn)行繪畫功能

??????????{
???????????set_shape_point（SPbegin.x（）begin.y（）begin.x（）begin.y（）shape_flage）;//將該點(diǎn)信息存入SP

???????????ShapePoint.push_back（SP）;//將SP存入容器尾部

??????????}

????????if（ismoving==1||iszooming==1）//移動(dòng)或縮放操作

??????????{
????????????shape_num=choose_shape（begin）;//選擇要移動(dòng)的圖形并將位置信息賦值給shape_num

????????????if（ischoose==1）//如果選中圖形

????????????{
???????????????/*將起點(diǎn)坐標(biāo)賦給px1*/

???????????????px1=ShapePoint[shape_num].p1x;
???????????????py1=ShapePoint[shape_num].p1y;

???????????????/*將終點(diǎn)坐標(biāo)賦給px2*/
???????????????px2=ShapePoint[shape_num].p2x;
???????????????py2=ShapePoint[shape_num].p2y;

????????????}



????????}



????????/*對(duì)圖形進(jìn)行填充*/
????????if（isfilling==1）

?????????{
????????????shape_num=choose_shape（begin）;//選擇填充的圖形

????????????if（ischoose==1）
????????????{

????????????????ShapePoint[shape_num].Bcolor=brush_Color;//將填充顏色賦給Bcolor

????????????????draw（）;//繪畫
????????????}

?????????}

?????}
}



/*鼠標(biāo)移動(dòng)事件*/

void?canvas::mouseMoveEvent（QMouseEvent?*event）
{
???if（event->buttons（）&Qt::LeftButton）

?????{
???????if（ismoving==0&&iszooming==0&&shape_flage==0）//繪制普通圖形

????????{
???????????/*將該點(diǎn)坐標(biāo)存到容器中，其中終點(diǎn)與起點(diǎn)相同*/

????????????end=event->pos（）;

????????????set_shape_point（SPend.x（）end.y（）end.x（）end.y（）shape_flage）;

????????????ShapePoint.push_back（SP）;
????????}

????????if（ismoving==0&&iszooming==0&&shape_flage!=0）//繪制特殊圖形

??????????{
????????????/*將該點(diǎn)坐標(biāo)存到容器中，其中終點(diǎn)與起點(diǎn)相同*/

??????????????end=event->pos（）;

??????????????set_shape_point（SPbegin.x

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-06-21?02:55??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\
?????文件???????11073??2014-06-21?02:17??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\canvas.cpp
?????文件????????2964??2014-06-21?02:03??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\canvas.h
?????文件?????????389??2014-06-20?11:24??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\d.pro
?????文件???????18900??2014-06-21?02:55??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\d.pro.user
?????文件?????????566??2014-06-16?23:25??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\ellipse.cpp
?????文件?????????522??2014-06-16?17:39??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\ellipse.h
?????文件?????????486??2014-06-16?12:32??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\icon.qrc
?????目錄???????????0??2014-06-21?02:25??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\
?????文件????????1028??2009-10-16?18:37??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\clear.png
?????文件?????????928??2009-10-16?18:37??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\exit.png
?????文件?????????822??2005-12-30?20:46??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\left.bmp
?????文件????????1038??2009-10-16?18:37??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\new.png
?????文件?????????854??2009-10-16?18:37??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\open.png
?????文件?????????822??2005-12-30?20:46??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\right.bmp
?????文件?????????246??2002-01-13?09:42??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\save.bmp
?????文件?????????246??2002-01-13?09:42??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\saveas.bmp
?????文件?????????246??1999-11-20?10:49??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\select.bmp
?????文件????????1332??2009-09-22?13:43??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\zoom-in.png
?????文件????????1266??2009-09-22?13:43??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\images\zoom-out.png
?????文件?????????592??2014-06-16?17:39??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\line.cpp
?????文件?????????456??2014-06-16?17:39??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\line.h
?????文件?????????295??2014-06-19?23:32??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\main.cpp
?????文件????????5323??2014-06-21?00:21??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\mainwindow.cpp
?????文件????????1577??2014-06-21?00:21??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\mainwindow.h
?????文件????????8584??2014-06-20?17:32??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\mainwindow.ui
?????文件?????????753??2014-06-16?17:43??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\rectangle.cpp
?????文件?????????710??2014-06-16?17:39??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\rectangle.h
?????文件?????????492??2014-06-16?17:41??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\shape.cpp
?????文件?????????461??2014-06-17?23:04??06_12弘深_20125079李杰_20125074段廣晗_20124499肖垚?2\shape.h