QWidget上放置的控件，如果想要保证自己的控件大小不变并能根据窗口的大小动态调整位置，则需要重载QWidget下的resizeEvent（函数原型：voidresizeEvent(QResizeEvent*);）函数，该函数用于重新计算窗口并布局。
使用布局管理器并不能实现该功能，由于布局管理器会根据窗口大小进行相应的放大和缩小，其上面的控件跟着对应变化，所以只能重载该函数来实现窗口的动态布局。
Example:仍以工具箱的实现为例跟之前的文章：
Qt在停靠窗口上添加控件（实现工具箱功能） 对比
//头文件内容如下：
#ifndef TOOLKIT_H
#define TOOLKIT_H
#define BUTTONWIDTH 16
#define BUTTONHEIGHT 16
#define WIDTHINTERVAL 21
#define HEIGHTINTERVAL 21
#define LINEWIDTH 30
#include <QWidget>
#include <QLabel>
#include <QPushButton>
#include <QButtonGroup>
#include <QSize>
#include <QVector>
class CToolkit : public QWidget
{
Q_OBJECT
public:
explicit CToolkit(QWidget *parent = 0);
~CToolkit();
signals:
public slots:
private:
void initUI();
//basic buttons
QPushButton * basPotBtn; //draw pointer
QPushButton * basLineBtn; //draw line
QPushButton * basPolygonaLineBtn; //draw polygon line
QPushButton * basArcBtn; //draw arc
QPushButton * basCurveBtn; //draw curve
QPushButton * basBasselCurveBtn; //draw bassel curve
QPushButton * basRectangleBtn; //draw rectangle
QPushButton * basRoundRectBtn; //draw round rectangle
QPushButton * basCircleBtn; //draw circle
QPushButton * basSectorBtn; //draw sector
QPushButton * basHalfCirBtn; //draw half circle
QPushButton * basPolygonBtn; //draw polygon
QPushButton * basEnclosedCurBtn; //draw closed curve
QPushButton * basEnclosedBasselCurBtn; //draw closed bassel curve
QPushButton * basTextBtn; //draw text
QPushButton * basPumpBtn; //draw pump
//extension buttons
QPushButton *extPotBtn; //draw point
QPushButton *extBtnBtn; //draw button
QPushButton *extPicBtn; //draw picture
QPushButton *extTreLineBtn; //draw trend line
QPushButton *extAlaWndBtn; //draw alarm window
QPushButton *extXYTreBtn; //draw XY trend
QPushButton *extEveWndBtn; //draw event window
QPushButton *extVerRuleBtn; //draw vertical ruler
QPushButton *extHorRuleBtn; //draw horizontal ruler
QPushButton *extBarPicBtn; //draw bar picture
QPushButton *extMenuBtn; //draw menu
QPushButton *extRepBtn; //draw report
//UI buttons
QPushButton *UIPotBtn; //draw point
QPushButton *UIBtnBtn; //draw button
QPushButton *UICheBtn; //draw checkbox
QPushButton *UITextBtn; //draw textedit
QPushButton *UIComBtn; //draw combobox
QPushButton *UILstBtn; //draw listbox
QPushButton *UISigBtn; //draw siglebox
QPushButton *UITreeBtn; //draw treeview
QPushButton *UICalBtn; //draw calender
QPushButton *UIMulTextBtn; //draw multify textedit
QPushButton *UIDateBtn; //draw datetime
QPushButton *UIRelBtn; //draw relative datetime
QPushButton *MulTreeBtn; //draw multify treeview
private:
//用于在绘制的时候确定要绘制哪一个图形
QButtonGroup *m_pBasGropBox;
QButtonGroup *m_pExtGropBox;
QButtonGroup *m_pUIGropBox;
//把已经创建的三组按钮分别保存用于在重新布局时使用
QVector<QPushButton*> mBasBtns;
QVector<QPushButton*> mExtBtns;
QVector<QPushButton*> mUIBtns;
void addBtnsToGroupBox();
void addBtnsToVector();
public slots:
void basicGroupBoxClicked(int);
void extensionGroupBoxClicked(int);
void UIGroupBoxClicked(int);
public:
int mDrawType; //1 indicate basic type, 2 indicate extension type, 3 indicate UI type
int mDrawIndex; //mDrawIndex从-1开始递减
private:
//初始化基本、扩展和UI按钮
void createBasicBtns();
void createExtensionBtns();
void createUIBtns();
int mBasLineHeiLoc; //基本按钮上面的线条的相对高度
int mExtLineHeiLoc; //扩展按钮上面的线条的相对高度
int mUILineHeiLoc; //UI按钮上面的线条的相对高度
int mCurLocWidth; //当前在窗口中的相对宽度
int mCurLocHeight; //当前在窗口中的相对高度
int mWndWidth; //当前窗口的宽度
//保存基本属性按钮和扩展按钮的个数，用于布局时高度的计算
int mBasicBtnNums;
int mExtBtnNums;
//由于写的控制布局的算法当刚好能整行放完的时候，会导致下一组的按钮的高度位置多加了一次，所以此处设置此值用来控制高度能正确计算
int mMode;
//用于显示信息的标签
QLabel *basicLab;
QLabel *extLab;
QLabel *UILab;
//resize the buttons location
void resizeEvent(QResizeEvent *);
void resizeBasicBtns();
void resizeExtensionBtns();
void resizeUIBtns();
//重载此函数用于绘制标签下的直线
void paintEvent(QPaintEvent *event);
};
#endif // TOOLKIT_H
//实现文件内容如下：
#include "toolkit.h"
#include <QLabel>
#include <QPushButton>
#include <QPainter>
CToolkit::CToolkit(QWidget *parent) :
QWidget(parent)
{
initUI();
}
CToolkit::~CToolkit()
{
//basic buttons
delete basPotBtn; //draw pointer
delete basLineBtn; //draw line
delete basPolygonaLineBtn; //draw polygon line
delete basArcBtn; //draw arc
delete basCurveBtn; //draw curve
delete basBasselCurveBtn; //draw bassel curve
delete basRectangleBtn; //draw rectangle
delete basRoundRectBtn; //draw round rectangle
delete basCircleBtn; //draw circle
delete basSectorBtn; //draw sector
delete basHalfCirBtn; //draw half circle
delete basPolygonBtn; //draw polygon
delete basEnclosedCurBtn; //draw closed curve
delete basEnclosedBasselCurBtn; //draw closed bassel curve
delete basTextBtn; //draw text
delete basPumpBtn; //draw pump
//extension buttons
delete extPotBtn; //draw point
delete extBtnBtn; //draw button
delete extPicBtn; //draw picture
delete extTreLineBtn; //draw trend line
delete extAlaWndBtn; //draw alarm window
delete extXYTreBtn; //draw XY trend
delete extEveWndBtn; //draw event window
delete extVerRuleBtn; //draw vertical ruler
delete extHorRuleBtn; //draw horizontal ruler
delete extBarPicBtn; //draw bar picture
delete extMenuBtn; //draw menu
delete extRepBtn; //draw report
//UI buttons
delete UIPotBtn; //draw point
delete UIBtnBtn; //draw button
delete UICheBtn; //draw checkbox
delete UITextBtn; //draw textedit
delete UIComBtn; //draw combobox
delete UILstBtn; //draw listbox
delete UISigBtn; //draw siglebox
delete UITreeBtn; //draw treeview
delete UICalBtn; //draw calender
delete UIMulTextBtn; //draw multify textedit
delete UIDateBtn; //draw datetime
delete UIRelBtn; //draw relative datetime
delete MulTreeBtn; //draw multify treeview
}
void CToolkit::initUI()
{
mDrawType = 0;
mDrawIndex = 0;
mBasLineHeiLoc = 0;
mExtLineHeiLoc = 0;
mUILineHeiLoc = 0;
mBasicBtnNums = 16;
mExtBtnNums = 12;
createBasicBtns();
createExtensionBtns();
createUIBtns();
addBtnsToGroupBox();
addBtnsToVector();
}
//创建所有的基本按钮并布局
void CToolkit::createBasicBtns()
{
m_pBasGropBox = new QButtonGroup;
if(NULL == m_pBasGropBox)
{
return;
}
connect(m_pBasGropBox, SIGNAL(buttonClicked(int)), this, SLOT(basicGroupBoxClicked(int)));
//draw pointer
basicLab = new QLabel(tr("基本"), this);
basicLab->setGeometry(0, 0, 30, 16);
basPotBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/choice.ico")), tr(""), this);
basPotBtn->resize(16, 16);
basPotBtn->setToolTip(tr("指针"));
basPotBtn->setGeometry(0, 21, 16, 16);
basPotBtn->setCheckable(true);
//draw line
basLineBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/line.ico")), tr(""), this);
basLineBtn->resize(16, 16);
basLineBtn->setToolTip(tr("直线"));
basLineBtn->setGeometry(21, 21, 16, 16);
basLineBtn->setCheckable(true);
//draw polygon line
basPolygonaLineBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/polygonalline.ico")), tr(""), this);
basPolygonaLineBtn->resize(16, 16);
basPolygonaLineBtn->setToolTip(tr("折线"));
basPolygonaLineBtn->setGeometry(42, 21, 16, 16);
basPolygonaLineBtn->setCheckable(true);
//draw arc
basArcBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/arc.ico")), tr(""), this);
basArcBtn->resize(16, 16);
basArcBtn->setToolTip(tr("弧线"));
basArcBtn->setGeometry(63, 21, 16, 16);
basArcBtn->setCheckable(true);
//draw curve
basCurveBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/curve.ico")), tr(""), this);
basCurveBtn->resize(16, 16);
basCurveBtn->setToolTip(tr("曲线"));
basCurveBtn->setGeometry(0, 42, 16, 16);
basCurveBtn->setCheckable(true);
//draw bassel curve
basBasselCurveBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/Besselcurve.ico")), tr(""), this);
basBasselCurveBtn->resize(16, 16);
basBasselCurveBtn->setToolTip(tr("贝塞尔曲线"));
basBasselCurveBtn->setGeometry(21, 42, 16, 16);
basBasselCurveBtn->setCheckable(true);
//draw rectangle
basRectangleBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/rectangle.ico")), tr(""), this);
basRectangleBtn->resize(16, 16);
basRectangleBtn->setToolTip(tr("矩形"));
basRectangleBtn->setGeometry(42, 42, 16, 16);
basRectangleBtn->setCheckable(true);
//draw round rectangle
basRoundRectBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/Roundedrectangle.ico")), tr(""), this);
basRoundRectBtn->resize(16, 16);
basRoundRectBtn->setToolTip(tr("圆角矩形"));
basRoundRectBtn->setGeometry(63, 42, 16, 16);
basRoundRectBtn->setCheckable(true);
//draw circle
basCircleBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/circle.ico")), tr(""), this);
basCircleBtn->resize(16, 16);
basCircleBtn->setToolTip(tr("椭圆"));
basCircleBtn->setGeometry(0, 63, 16, 16);
basCircleBtn->setCheckable(true);
//draw sector
basSectorBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/sector.ico")), tr(""), this);
basSectorBtn->resize(16, 16);
basSectorBtn->setToolTip(tr("扇形"));
basSectorBtn->setGeometry(21, 63, 16, 16);
basSectorBtn->setCheckable(true);
//draw half circle
basHalfCirBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/halfcircle.ico")), tr(""), this);
basHalfCirBtn->resize(16, 16);
basHalfCirBtn->setToolTip(tr("弦"));
basHalfCirBtn->setGeometry(42, 63, 16, 16);
basHalfCirBtn->setCheckable(true);
//draw polygon
basPolygonBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/polygon.ico")), tr(""), this);
basPolygonBtn->resize(16, 16);
basPolygonBtn->setToolTip(tr("多边形"));
basPolygonBtn->setGeometry(63, 63, 16, 16);
basPolygonBtn->setCheckable(true);
//draw closed cur
basEnclosedCurBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/enclosedcircle.ico")), tr(""), this);
basEnclosedCurBtn->resize(16, 16);
basEnclosedCurBtn->setToolTip(tr("封闭曲线"));
basEnclosedCurBtn->setGeometry(0, 84, 16, 16);
basEnclosedCurBtn->setCheckable(true);
//draw close bassel curve
basEnclosedBasselCurBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/enclosedbasselcurve.ico")), tr(""), this);
basEnclosedBasselCurBtn->resize(16, 16);
basEnclosedBasselCurBtn->setToolTip(tr("封闭贝塞尔曲线"));
basEnclosedBasselCurBtn->setGeometry(21, 84, 16, 16);
basEnclosedBasselCurBtn->setCheckable(true);
//draw text
basTextBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/text.ico")), tr(""), this);
basTextBtn->resize(16, 16);
basTextBtn->setToolTip(tr("文本"));
basTextBtn->setGeometry(42, 84, 16, 16);
basTextBtn->setCheckable(true);
//draw pump
basPumpBtn = new QPushButton(QIcon(tr(":/res/ctrl/BasicCtrl/pump.ico")), tr(""), this);
basPumpBtn->resize(16, 16);
basPumpBtn->setToolTip(tr("管道"));
basPumpBtn->setGeometry(63, 84, 16, 16);
basPumpBtn->setCheckable(true);
}
//创建所有的扩展按钮并布局
void CToolkit::createExtensionBtns()
{
m_pExtGropBox = new QButtonGroup;
if(NULL == m_pExtGropBox)
{
return;
}
connect(m_pExtGropBox, SIGNAL(buttonClicked(int)), this, SLOT(extensionGroupBoxClicked(int)));
extLab = new QLabel(tr("扩展"), this);
extLab->setGeometry(0, 105, 30, 16);
//draw pointer
extPotBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/choice.ico")), tr(""), this);
extPotBtn->resize(16, 16);
extPotBtn->setToolTip(tr("指针"));
extPotBtn->setGeometry(0, 126, 16, 16);
extPotBtn->setCheckable(true);
//draw button
extBtnBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/button.ico")), tr(""), this);
extBtnBtn->resize(16, 16);
extBtnBtn->setToolTip(tr("按钮"));
extBtnBtn->setGeometry(21, 126, 16, 16);
extBtnBtn->setCheckable(true);
//draw picture
extPicBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/picturecontrol.ico")), tr(""), this);
extPicBtn->resize(16, 16);
extPicBtn->setToolTip(tr("图像"));
extPicBtn->setGeometry(42, 126, 16, 16);
extPicBtn->setCheckable(true);
//draw trend line
extTreLineBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/trendline.ico")), tr(""), this);
extTreLineBtn->resize(16, 16);
extTreLineBtn->setToolTip(tr("趋势曲线"));
extTreLineBtn->setGeometry(63, 126, 16, 16);
extTreLineBtn->setCheckable(true);
//draw alarm window
extAlaWndBtn = new QPushButton(QIcon(tr(":res/ctrl/ExtCtrl/alarmwindow.ico")), tr(""), this);
extAlaWndBtn->resize(16, 16);
extAlaWndBtn->setToolTip(tr("报警窗"));
extAlaWndBtn->setGeometry(0, 147, 16, 16);
extAlaWndBtn->setCheckable(true);
//draw XY trend
extXYTreBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/XYtrendline.ico")), tr(""), this);
extXYTreBtn->resize(16, 16);
extXYTreBtn->setToolTip(tr("XY曲线"));
extXYTreBtn->setGeometry(21, 147, 16, 16);
extXYTreBtn->setCheckable(true);
//draw event window
extEveWndBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/eventwindow.ico")), tr(""), this);
extEveWndBtn->resize(16, 16);
extEveWndBtn->setToolTip(tr("事件窗"));
extEveWndBtn->setGeometry(42, 147, 16, 16);
extEveWndBtn->setCheckable(true);
//draw vertical ruler
extVerRuleBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/verticaldivilingrule.ico")), tr(""), this);
extVerRuleBtn->resize(16, 16);
extVerRuleBtn->setToolTip(tr("垂直标尺"));
extVerRuleBtn->setGeometry(63, 147, 16, 16);
extVerRuleBtn->setCheckable(true);
//draw horizontal ruler
extHorRuleBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/horizontaldivilingrule.ico")), tr(""), this);
extHorRuleBtn->resize(16, 16);
extHorRuleBtn->setToolTip(tr("水平标尺"));
extHorRuleBtn->setGeometry(0, 168, 16, 16);
extHorRuleBtn->setCheckable(true);
//draw bar picture
extBarPicBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/report.ico")), tr(""), this);
extBarPicBtn->resize(16, 16);
extBarPicBtn->setToolTip(tr("棒图"));
extBarPicBtn->setGeometry(21, 168, 16, 16);
extBarPicBtn->setCheckable(true);
//draw relative datatime
extRepBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/barpicture.ico")), tr(""), this);
extRepBtn->resize(16, 16);
extRepBtn->setToolTip(tr("报表"));
extRepBtn->setGeometry(42, 168, 16, 16);
extRepBtn->setCheckable(true);
//draw menu
extMenuBtn = new QPushButton(QIcon(tr(":/res/ctrl/ExtCtrl/menu.ico")), tr(""), this);
extMenuBtn->resize(16, 16);
extMenuBtn->setToolTip(tr("菜单"));
extMenuBtn->setGeometry(63, 168, 16, 16);
extMenuBtn->setCheckable(true);
}
//创建所有的UI按钮并布局
void CToolkit::createUIBtns()
{
m_pUIGropBox = new QButtonGroup;
if(NULL == m_pUIGropBox)
{
return;
}
connect(m_pUIGropBox, SIGNAL(buttonClicked(int)), this, SLOT(UIGroupBoxClicked(int)));
UILab = new QLabel(tr("UI"), this);
UILab->setGeometry(0, 189, 30, 16);
//draw pointer
UIPotBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/choice.ico")), tr(""), this);
UIPotBtn->resize(16, 16);
UIPotBtn->setToolTip(tr("指针"));
UIPotBtn->setGeometry(0, 210, 16, 16);
UIPotBtn->setCheckable(true);
//draw button
UIBtnBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/button.ico")), tr(""), this);
UIBtnBtn->resize(16, 16);
UIBtnBtn->setToolTip(tr("按钮"));
UIBtnBtn->setGeometry(21, 210, 16, 16);
UIBtnBtn->setCheckable(true);
//draw checkbox
UICheBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/checkbox.ico")), tr(""), this);
UICheBtn->resize(16, 16);
UICheBtn->setToolTip(tr("复选框"));
UICheBtn->setGeometry(42, 210, 16, 16);
UICheBtn->setCheckable(true);
//draw textedit
UITextBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/textedit.ico")), tr(""), this);
UITextBtn->resize(16, 16);
UITextBtn->setToolTip(tr("文本框"));
UITextBtn->setGeometry(63, 210, 16, 16);
UITextBtn->setCheckable(true);
//draw combobox
UIComBtn = new QPushButton(QIcon(tr(":res/ctrl/UICtrl/combobox.ico")), tr(""), this);
UIComBtn->resize(16, 16);
UIComBtn->setToolTip(tr("复选框"));
UIComBtn->setGeometry(0, 231, 16, 16);
UIComBtn->setCheckable(true);
//draw listbox
UILstBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/listbox.ico")), tr(""), this);
UILstBtn->resize(16, 16);
UILstBtn->setToolTip(tr("列表框"));
UILstBtn->setGeometry(21, 231, 16, 16);
UILstBtn->setCheckable(true);
//draw singlebox
UISigBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/singlebox.ico")), tr(""), this);
UISigBtn->resize(16, 16);
UISigBtn->setToolTip(tr("单选框"));
UISigBtn->setGeometry(42, 231, 16, 16);
UISigBtn->setCheckable(true);
//draw treeview
UITreeBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/treeview.ico")), tr(""), this);
UITreeBtn->resize(16, 16);
UITreeBtn->setToolTip(tr("树视图"));
UITreeBtn->setGeometry(63, 231, 16, 16);
UITreeBtn->setCheckable(true);
//draw calender
UICalBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/calender.ico")), tr(""), this);
UICalBtn->resize(16, 16);
UICalBtn->setToolTip(tr("日历"));
UICalBtn->setGeometry(0, 252, 16, 16);
UICalBtn->setCheckable(true);
//draw mulify textedit
UIMulTextBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/mulitfunctionaltextedit.ico")), tr(""), this);
UIMulTextBtn->resize(16, 16);
UIMulTextBtn->setToolTip(tr("复杂文本框"));
UIMulTextBtn->setGeometry(21, 252, 16, 16);
UIMulTextBtn->setCheckable(true);
//draw datetime
UIDateBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/dateandtime.ico")), tr(""), this);
UIDateBtn->resize(16, 16);
UIDateBtn->setToolTip(tr("日期时间"));
UIDateBtn->setGeometry(42, 252, 16, 16);
UIDateBtn->setCheckable(true);
//draw relative datatime
UIRelBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/relativedateandtime.ico")), tr(""), this);
UIRelBtn->resize(16, 16);
UIRelBtn->setToolTip(tr("相对时间"));
UIRelBtn->setGeometry(63, 252, 16, 16);
UIRelBtn->setCheckable(true);
//draw mulify treeview
MulTreeBtn = new QPushButton(QIcon(tr(":/res/ctrl/UICtrl/multifunctionaltreeview.ico")), tr(""), this);
MulTreeBtn->resize(16, 16);
MulTreeBtn->setToolTip(tr("多功能树视图"));
MulTreeBtn->setGeometry(0, 273, 16, 16);
MulTreeBtn->setCheckable(true);
}
//添加所有按钮到组框中用户在点击是获取点击的是哪一个按钮，要绘制哪一种图形
void CToolkit::addBtnsToGroupBox()
{
//add the buttons to m_pBasGropBox
m_pBasGropBox->addButton(basPotBtn);
m_pBasGropBox->addButton(basLineBtn);
m_pBasGropBox->addButton(basPolygonaLineBtn);
m_pBasGropBox->addButton(basArcBtn);
m_pBasGropBox->addButton(basCurveBtn);
m_pBasGropBox->addButton(basBasselCurveBtn);
m_pBasGropBox->addButton(basRectangleBtn);
m_pBasGropBox->addButton(basRoundRectBtn);
m_pBasGropBox->addButton(basCircleBtn);
m_pBasGropBox->addButton(basSectorBtn);
m_pBasGropBox->addButton(basHalfCirBtn);
m_pBasGropBox->addButton(basPolygonBtn);
m_pBasGropBox->addButton(basEnclosedCurBtn);
m_pBasGropBox->addButton(basEnclosedBasselCurBtn);
m_pBasGropBox->addButton(basTextBtn);
m_pBasGropBox->addButton(basPumpBtn);
//add the buttons to m_pExtGropBox
m_pExtGropBox->addButton(extPotBtn);
m_pExtGropBox->addButton(extBtnBtn);
m_pExtGropBox->addButton(extPicBtn);
m_pExtGropBox->addButton(extTreLineBtn);
m_pExtGropBox->addButton(extAlaWndBtn);
m_pExtGropBox->addButton(extXYTreBtn);
m_pExtGropBox->addButton(extEveWndBtn);
m_pExtGropBox->addButton(extVerRuleBtn);
m_pExtGropBox->addButton(extHorRuleBtn);
m_pExtGropBox->addButton(extRepBtn);
m_pExtGropBox->addButton(extBarPicBtn);
m_pExtGropBox->addButton(extMenuBtn);
//add the buttons to m_pUIGroupBox
m_pUIGropBox->addButton(UIPotBtn);
m_pUIGropBox->addButton(UIBtnBtn);
m_pUIGropBox->addButton(UICheBtn);
m_pUIGropBox->addButton(UITextBtn);
m_pUIGropBox->addButton(UIComBtn);
m_pUIGropBox->addButton(UILstBtn);
m_pUIGropBox->addButton(UISigBtn);
m_pUIGropBox->addButton(UITreeBtn);
m_pUIGropBox->addButton(UICalBtn);
m_pUIGropBox->addButton(UIMulTextBtn);
m_pUIGropBox->addButton(UIDateBtn);
m_pUIGropBox->addButton(UIRelBtn);
m_pUIGropBox->addButton(MulTreeBtn);
}
//保存所有的按钮信息以在重新计算布局时使用
void CToolkit::addBtnsToVector()
{
//add the buttons to the mBasBtns vector
mBasBtns.push_back(basPotBtn);
mBasBtns.push_back(basLineBtn);
mBasBtns.push_back(basPolygonaLineBtn);
mBasBtns.push_back(basArcBtn);
mBasBtns.push_back(basCurveBtn);
mBasBtns.push_back(basBasselCurveBtn);
mBasBtns.push_back(basRectangleBtn);
mBasBtns.push_back(basRoundRectBtn);
mBasBtns.push_back(basCircleBtn);
mBasBtns.push_back(basSectorBtn);
mBasBtns.push_back(basHalfCirBtn);
mBasBtns.push_back(basPolygonBtn);
mBasBtns.push_back(basEnclosedCurBtn);
mBasBtns.push_back(basEnclosedBasselCurBtn);
mBasBtns.push_back(basTextBtn);
mBasBtns.push_back(basPumpBtn);
//add the buttons to the mExtBtns vector
mExtBtns.push_back(extPotBtn);
mExtBtns.push_back(extBtnBtn);
mExtBtns.push_back(extPicBtn);
mExtBtns.push_back(extTreLineBtn);
mExtBtns.push_back(extAlaWndBtn);
mExtBtns.push_back(extXYTreBtn);
mExtBtns.push_back(extEveWndBtn);
mExtBtns.push_back(extVerRuleBtn);
mExtBtns.push_back(extHorRuleBtn);
mExtBtns.push_back(extRepBtn);
mExtBtns.push_back(extBarPicBtn);
mExtBtns.push_back(extMenuBtn);
//add the buttons to the mUIBtns vector
mUIBtns.push_back(UIPotBtn);
mUIBtns.push_back(UIBtnBtn);
mUIBtns.push_back(UICheBtn);
mUIBtns.push_back(UITextBtn);
mUIBtns.push_back(UIComBtn);
mUIBtns.push_back(UILstBtn);
mUIBtns.push_back(UISigBtn);
mUIBtns.push_back(UITreeBtn);
mUIBtns.push_back(UICalBtn);
mUIBtns.push_back(UIMulTextBtn);
mUIBtns.push_back(UIDateBtn);
mUIBtns.push_back(UIRelBtn);
mUIBtns.push_back(MulTreeBtn);
}
void CToolkit::basicGroupBoxClicked(int id)
{
mDrawType = 1;
QList<QAbstractButton *> extButtons = m_pExtGropBox->buttons();
foreach (QAbstractButton *button, extButtons)
{
button->setCheckable(false);
}
QList<QAbstractButton *> UIButtons = m_pUIGropBox->buttons();
foreach (QAbstractButton *button, UIButtons)
{
button->setCheckable(false);
}
QList<QAbstractButton *> buttons = m_pBasGropBox->buttons();
foreach (QAbstractButton *button, buttons)
{
if (m_pBasGropBox->button(id) != button)
{
button->setCheckable(true);
}
else
{
mDrawIndex = id;
}
}
}
void CToolkit::extensionGroupBoxClicked(int id)
{
mDrawType = 2;
QList<QAbstractButton *> BasButtons = m_pBasGropBox->buttons();
foreach (QAbstractButton *button, BasButtons)
{
button->setCheckable(false);
}
QList<QAbstractButton *> UIButtons = m_pUIGropBox->buttons();
foreach (QAbstractButton *button, UIButtons)
{
button->setCheckable(false);
}
QList<QAbstractButton *> buttons = m_pExtGropBox->buttons();
foreach (QAbstractButton *button, buttons)
{
if (m_pExtGropBox->button(id) != button)
{
button->setCheckable(true);
}
else
{
mDrawIndex = id;
}
}
}
void CToolkit::UIGroupBoxClicked(int id)
{
mDrawType = 3;
QList<QAbstractButton *> BasButtons = m_pBasGropBox->buttons();
foreach (QAbstractButton *button, BasButtons)
{
button->setCheckable(false);
}
QList<QAbstractButton *> extButtons = m_pExtGropBox->buttons();
foreach (QAbstractButton *button, extButtons)
{
button->setCheckable(false);
}
QList<QAbstractButton *> buttons = m_pUIGropBox->buttons();
foreach (QAbstractButton *button, buttons)
{
if (m_pUIGropBox->button(id) != button)
{
button->setCheckable(true);
}
else
{
mDrawIndex = id;
}
}
}
//重新布局窗口
void CToolkit::resizeEvent(QResizeEvent *event)
{
//获取当前窗口宽度
mWndWidth = width();
mCurLocWidth = 0;
mCurLocHeight = 0;
resizeBasicBtns();
resizeExtensionBtns();
resizeUIBtns();
QWidget::resizeEvent(event);
}
//重新计算基本按钮位置
void CToolkit::resizeBasicBtns()
{
basicLab->setGeometry(mCurLocWidth, mCurLocHeight, LINEWIDTH, BUTTONHEIGHT);
mCurLocWidth = 0;
mCurLocHeight += HEIGHTINTERVAL;
mBasLineHeiLoc = mCurLocHeight - 2; //保存基本按钮上面的要绘制的线的位置
int tmp = mWndWidth / WIDTHINTERVAL;
if(tmp * WIDTHINTERVAL + BUTTONWIDTH < mWndWidth)
{
tmp++;
}
mMode = mBasicBtnNums % tmp;
//计算所有基本按钮的位置，当刚好能整行放置所有按钮的话，在resizeExtensionBtns()中的mCurLocHeight的值多加了一个HEIGHTINTERVAL，
//所以添加了mMode来控制是否刚好整行放置
for(QVector<QPushButton*>::iterator it = mBasBtns.begin(); it != mBasBtns.end(); ++it)
{
QPushButton *tmpBtn = *it;
if(mCurLocWidth + BUTTONWIDTH < mWndWidth)
{
tmpBtn->setGeometry(mCurLocWidth, mCurLocHeight, BUTTONWIDTH, BUTTONHEIGHT);
if(mCurLocWidth + WIDTHINTERVAL + BUTTONWIDTH < mWndWidth)
{
mCurLocWidth += WIDTHINTERVAL;
}
else
{
mCurLocWidth = 0;
mCurLocHeight += HEIGHTINTERVAL;
}
}
}
}
void CToolkit::resizeExtensionBtns()
{
mCurLocWidth = 0;
//计算基本按钮是否刚好整行放置
if(0 == mMode)
{
mCurLocHeight -= HEIGHTINTERVAL;
}
{
mCurLocHeight += HEIGHTINTERVAL;
}
int tmp = mWndWidth / WIDTHINTERVAL;
if(tmp * WIDTHINTERVAL + BUTTONWIDTH < mWndWidth)
{
tmp++;
}
mMode = mExtBtnNums % tmp;
extLab->setGeometry(mCurLocWidth, mCurLocHeight, LINEWIDTH, BUTTONHEIGHT);
mCurLocWidth = 0;
mCurLocHeight += HEIGHTINTERVAL;
mExtLineHeiLoc = mCurLocHeight - 2; //保存扩展按钮上面的要绘制的线的位置
//计算所有扩展按钮的位置，当刚好能整行放置所有按钮的话，在resizeUIBtns()中的mCurLocHeight的值多加了一个HEIGHTINTERVAL，
//所以添加了mMode来控制是否刚好整行放置
for(QVector<QPushButton*>::iterator it = mExtBtns.begin(); it != mExtBtns.end(); ++it)
{
QPushButton *tmpBtn = *it;
if(mCurLocWidth + BUTTONWIDTH < mWndWidth)
{
tmpBtn->setGeometry(mCurLocWidth, mCurLocHeight, BUTTONWIDTH, BUTTONHEIGHT);
if(mCurLocWidth + WIDTHINTERVAL + BUTTONWIDTH < mWndWidth)
{
mCurLocWidth += WIDTHINTERVAL;
}
else
{
mCurLocWidth = 0;
mCurLocHeight += HEIGHTINTERVAL;
}
}
}
}
void CToolkit::resizeUIBtns()
{
mCurLocWidth = 0;
if(0 == mMode)
{
mCurLocHeight -= HEIGHTINTERVAL;
}
{
mCurLocHeight += HEIGHTINTERVAL;
}
UILab->setGeometry(mCurLocWidth, mCurLocHeight, LINEWIDTH, BUTTONHEIGHT);
//由于UI按钮下面没有内容，不需要在计算mMode
mCurLocWidth = 0;
mCurLocHeight += HEIGHTINTERVAL;
mUILineHeiLoc = mCurLocHeight - 2; //保存UI按钮上面的要绘制的线的位置
for(QVector<QPushButton*>::iterator it = mUIBtns.begin(); it != mUIBtns.end(); ++it)
{
QPushButton *tmpBtn = *it;
if(mCurLocWidth + BUTTONWIDTH < mWndWidth)
{
tmpBtn->setGeometry(mCurLocWidth, mCurLocHeight, BUTTONWIDTH, BUTTONHEIGHT);
if(mCurLocWidth + WIDTHINTERVAL + BUTTONWIDTH < mWndWidth)
{
mCurLocWidth += WIDTHINTERVAL;
}
else
{
mCurLocWidth = 0;
mCurLocHeight += HEIGHTINTERVAL;
}
}
}
}
//绘制三条直线
void CToolkit::paintEvent(QPaintEvent *event)
{
QPainter painter(this); // 创建QPainter一个对象
QPen pen;
painter.setPen(pen); // 设置画笔
painter.drawLine(0, mBasLineHeiLoc, mWndWidth, mBasLineHeiLoc);
painter.drawLine(0, mExtLineHeiLoc, mWndWidth, mExtLineHeiLoc);
painter.drawLine(0, mUILineHeiLoc, mWndWidth, mUILineHeiLoc);
QWidget::paintEvent(event);
}
//main.cpp 代码如下：
#include "mainwindow.h"
#include "toolkit.h"
#include <QApplication>
#include <QDockWidget>
#include <QTextEdit>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QMainWindow *mainWnd = new QMainWindow;
QTextEdit *txtEdit = new QTextEdit;
mainWnd->setCentralWidget(txtEdit);
CToolkit *pToolkit = new CToolkit;
if(NULL == pToolkit)
{
return 1;
}
QDockWidget *toolkitDock = new QDockWidget();
if(NULL == toolkitDock)
{
return 1;
}
toolkitDock->setWindowTitle("工具箱");
toolkitDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
toolkitDock->setWidget(pToolkit);
mainWnd->addDockWidget(Qt::LeftDockWidgetArea, toolkitDock);
mainWnd->show();
return a.exec();
}
源代码下载：点击打开链接
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