欢迎大家来到Qt中文论坛

[chenmin]

我来拉
[quote author="Xingtao Zhang" date="1312173268"]呵呵，有空就来转转。
大牛们多发些技术贴啊。

[quote author="Xingtao Zhang" date="1312000279"]那必须的! :)

[quote author="Chuck Gao" date="1311946372"]
[quote author="Xingtao Zhang" date="1311940164"]关注下，人气儿不怎么高啊！[/quote]

恩，目前才20个人，求给力！

[/quote]

[/quote]

[/quote]

[cwang.nicolas]

报道一下

[watchdog]

在这里一起做什么？有项目吗？

[figo]

报道

[jiangcaiyang]

似乎不知道如何设置自己的头像……

[toby520]

彩阳，哪里都有你的身影 哈哈，我也来啦，关注Qt，做Qter

[jiangcaiyang]

[quote author="toby520" date="1370487689"]彩阳，哪里都有你的身影 哈哈，我也来啦，关注Qt，做Qter[/quote]

是吗，为了官方论坛中文板块的兴旺，可以多在中文板块提问，我会尽我所能回答的。

[realfan]

凑个热闹，怎么换头像啊

[olunx]

新人报道，哦耶。

[jayjie]

捧场，捧场来啦，弱弱的问一下，那个视频怎么看不起喃

[jiangcaiyang]

YouTube的视频在大陆看不起。
[quote author="jayjie" date="1374976398"]捧场，捧场来啦，弱弱的问一下，那个视频怎么看不起喃[/quote]

[eiao]

新人报道~从百度贴吧过来...

[zixialang]

I'm coming.

[liye0005]

新人报道

[caochuanlong]

我装的QT5.2，然后编译时提示没有compiler,请问该怎么弄呢？我时新手，呵呵

[jekin]

一直不知有个中文的版块，一直用Qt遇到的问题是很多，因为英文表达比较差，所以很少提问，很多的问题都是靠自己反复阅读英文文档才搞明白，以后至少可以在这里向大家提提问。

[the_maskedman]

新人来报个到.

[hou_jiangzhen]

@
#pragma once
#ifndef HICONEDITOR_H
#define HICONEDITOR_H
#include <QWidget>
//!@ HIConEditor 类描述
//!@ 类名:HIConEditor
//!@ 基类名：QWidget
//!@ 文件名称:e:\DrawLine\test\HIConEditor.h
//!@ 创建者:Administrator
//!@ 创建时间: 2014/03/29 17:26:33
//!@ 类描述:

class HIConEditor:public QWidget
{
Q_OBJECT
Q_PROPERTY(QImage iconImage READ GetIConImage WRITE SetIConImage)
Q_PROPERTY(QColor penColor READ GetPenColor WRITE SetPenColor)
Q_PROPERTY(int zoomFactor READ GetZoomFactor WRITE SetZoomFactor)
public:
HIConEditor(QWidget *pParent=0);

void SetPenColor(const QColor &newColor);
inline QColor GetPenColor()const{return m_curColor;}
void SetIConImage(const QImage &newImage);
inline QImage GetIConImage()const{return m_curImage;}
void SetZoomFactor(const int nZoom);
inline int GetZoomFactor()const{return m_nZoom;}

//!@重写基类函数
QSize sizeHint()const;

//!@ 重写基类函数
protected:
void mousePressEvent(QMouseEvent * event);
void mouseMoveEvent(QMouseEvent * event);
void paintEvent(QPaintEvent * event);

private:
void SetImagePixel(const QPoint &ptPosition,bool bOpaque);
QRect GetPixelRect( const int nX, const int nY);

private:
QColor m_curColor;
QImage m_curImage;
int m_nZoom;
};

#endif
@
@#include <QPainter>
#include <QPaintEvent>
#include "HIConEditor.h"
HIConEditor::HIConEditor( QWidget pParent/=0*/ )
:QWidget(pParent)
{
setAttribute(Qt::WA_StaticContents);
setSizePolicy(QSizePolicy::Minimum,QSizePolicy::Minimum);
m_curColor=Qt::black;
m_nZoom=8;
m_curImage=QImage(16,16,QImage::Format_ARGB32);//w,h
m_curImage.fill(qRgba(0,0,0,0));
}

QSize HIConEditor::sizeHint() const
{
QSize qSize=m_nZoom*m_curImage.size();
if (m_nZoom>=3)
{
qSize+=QSize(1,1);
}
return qSize;
}

void HIConEditor::SetPenColor( const QColor &newColor )
{
if (newColor != m_curColor)
{
m_curColor=newColor;
}
}

void HIConEditor::SetIConImage( const QImage &newImage )
{
if (newImage !=m_curImage)
{
m_curImage=newImage.convertToFormat(QImage::Format_ARGB32);
update();
updateGeometry();
}
}

void HIConEditor::SetZoomFactor( const int nZoom )
{
if (nZoom !=m_nZoom)
{
if (nZoom<1)
{
m_nZoom=nZoom;
update();
updateGeometry();
}
}
}

void HIConEditor::paintEvent( QPaintEvent * event )
{
QPainter painter(this);
if (m_nZoom>=3)
{
painter.setPen(palette().foreground().color());
for (int i=0;i<=m_curImage.width();i++)
{
painter.drawLine(m_nZoomi,0,m_nZoomi,m_nZoomm_curImage.height());
}
for(int i=0;i<=m_curImage.height();i++)
{
painter.drawLine(0,m_nZoomi,m_nZoomm_curImage.width(),m_nZoomi);
}
}
for(int i=0;i<m_curImage.width();i++)
{
for(int j=0;j<m_curImage.height();j++)
{
QRect rect=GetPixelRect(i,j);
if (!event->region().intersect(rect).isEmpty())
{
QColor color=QColor::fromRgba(m_curImage.pixel(i,j));
if (color.alpha()<255)
{
painter.fillRect(rect,Qt::white);
}
else
{
painter.fillRect(rect,color);
}
}
}
}
}

QRect HIConEditor::GetPixelRect( const int nX, const int nY )
{
if (m_nZoom>=3)
{
return QRect(m_nZoomnX+1,m_nZoomnY+1,m_nZoom-1,m_nZoom-1);//(x,y,w,h)
}
else
{
return QRect(m_nZoomnX,m_nZoomnY,m_nZoom,m_nZoom);
}
}

void HIConEditor::mousePressEvent( QMouseEvent * event )
{
if (event->button()==Qt::LeftButton)
{
SetImagePixel(event->pos(),true);
}
else if (event->button()==Qt::RightButton)
{
SetImagePixel(event->pos(),false);
}
}

void HIConEditor::SetImagePixel( const QPoint &ptPosition,bool bOpaque )
{
int i=ptPosition.x()/m_nZoom;
int j=ptPosition.y()/m_nZoom;
if (m_curImage.rect().contains(i,j))
{
if (bOpaque)
{
m_curImage.setPixel(i,j,GetPenColor().rgba());
}
else
{
m_curImage.setPixel(i,j,qRgba(0,0,0,0));
}
update(GetPixelRect(i,j));
}
}

void HIConEditor::mouseMoveEvent( QMouseEvent * event )
{
if (event->buttons()&Qt::LeftButton)
{
SetImagePixel(event->pos(),true);
}
else if (event->buttons()&Qt::RightButton)
{
SetImagePixel(event->pos(),false);
}
}
@
@#pragma once
#ifndef HICONEDITORPLUGIN_H
#define HICONEDITORPLUGIN_H
#include <QDesignerCustomWidgetInterface>
class HIconEditorPlugin :public QObject,public QDesignerCustomWidgetInterface
{
Q_OBJECT
Q_INTERFACES(QDesignerCustomWidgetInterface) //告知qt这个类实现的是QDesignerCustomWidgetInterface接口
public:
HIconEditorPlugin(QObject*pParent=0);

//!@ 重写
QString name()const;
//!@ 重写
QString includeFile()const;
//!@ 重写
QString group()const;
//!@ 重写
QIcon icon()const;
//!@ 重写
QString toolTip()const;
//!@ 重写
QString whatsThis()const;
//!@ 重写
bool isContainer()const;
//!@ 重写
QWidget createWidget(QWidget parent);
};
#endif
@
@
#include "HIconEditorPlugin.h"
#include "HIConEditor.h"
#include "qplugin.h"
HIconEditorPlugin::HIconEditorPlugin( QObjectpParent/=0*/ )
:QObject(pParent)
{

}

QString HIconEditorPlugin::name() const
{
return "HIConEditor";
}

QString HIconEditorPlugin::includeFile() const
{
return "HIConEditor.h";
}

QString HIconEditorPlugin::group() const
{
return tr("Image Manipulation Widgets");
}

QIcon HIconEditorPlugin::icon() const
{
return QIcon(":/images/iconeditor.png");
}

QString HIconEditorPlugin::toolTip() const
{
return tr("An icon editor widget");
}

QString HIconEditorPlugin::whatsThis() const
{
return tr("This widget is presented in Chapter 5 of <i>C++ GUI"
"Programming with Qt 4</i> as example of a custom Qt"
"widget.");
}

bool HIconEditorPlugin::isContainer() const
{
return false;
}

QWidget * HIconEditorPlugin::createWidget( QWidget *parent )
{
return new HIConEditor(parent);
}
Q_EXPORT_PLUGIN2(hiconeditorplugin,HIconEditorPlugin)@

为什么下面这个QImage属性在QDesigner设计器中不显示，而其他定义的属性正常显示。
!C:\Users\Administrator\Desktop\QQ图片20140330192657.jpg(F:\QQ图片20140330192657.jpg)!Q_PROPERTY(QImage iconImage READ GetIConImage WRITE SetIConImage)

[qq897425998]

今天才发现 官网资源 这么丰富 以后就用官的论坛了

[qq897425998]

今天才发现 官网资源 这么丰富 以后就用官的论坛了 就是访问这网站慢了点