Qt设置另一个班级

时间：2017-10-28 12:00:26

标签： c++ qt qt5

我花了几天时间做这件事，但我尝试的每一个解决方案都没有用。

我有colorPicker，我选择一种颜色。 ColorPicker是一个类。我在另一个名为ToolWindow的类中有按钮。我想在ColorPicker类中选择颜色后更改ToolWindow类中按钮的颜色。

以下是一些代码：

toolWindow.h 

#ifndef TOOLWINDOW_H
#define TOOLWINDOW_H

#include <QDialog>
#include "colorpicker.h"
//#include "mainwindow.h"

namespace Ui {
class ToolWindow;
}

class ToolWindow : public QDialog
{
    Q_OBJECT

public:
    explicit ToolWindow(QWidget *parent = 0);
    ~ToolWindow();
void setColor(QColor color);


private slots:
    void on_penTool_clicked();
    void on_rectTool_clicked();
    void on_selectTool_clicked();
    void on_circleTool_clicked();
    void on_lineTool_clicked();
    void on_colorButton_clicked();

private:
    Ui::ToolWindow *ui;
    ColorPicker colorPicker;
    QColor nColor;

};

#endif // TOOLWINDOW_H

toolWindow.cpp 

#include "toolwindow.h"
#include "ui_toolwindow.h"
#include "colorpicker.h"
#include "mainwindow.h"

#include <QMouseEvent>

ToolWindow::ToolWindow(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::ToolWindow)
{
    ui->setupUi(this);
}

ToolWindow::~ToolWindow()
{
    delete ui;
}

void ToolWindow::on_penTool_clicked()
{
    mSelection = 1;
}

void ToolWindow::on_rectTool_clicked()
{
    mSelection = 2;
}

void ToolWindow::on_selectTool_clicked()
{
    mSelection = 0;
}

void ToolWindow::on_circleTool_clicked()
{
    mSelection = 3;
}

void ToolWindow::on_lineTool_clicked()
{
    mSelection = 4;
}

void ToolWindow::on_colorButton_clicked()
{
    colorPicker.show();
}

void ToolWindow::setColor(QColor color)
{
    //ui->colorButton->setPalette(color);
    //nColor = color;
}

colorPicker.h 

#ifndef COLORPICKER_H
#define COLORPICKER_H

#include <QDialog>
#include <QColor>
//#include "mainwindow.h"

namespace Ui {
class ColorPicker;
}

class ColorPicker : public QDialog
{
    Q_OBJECT
public:
    explicit ColorPicker(QWidget *parent = 0);
    ~ColorPicker();

    QPalette palete;

private slots:
    void on_buttonBox_rejected();
    void onColorChanged();
    void onCMYKChanged();

    void on_buttonBox_accepted();

private:
    Ui::ColorPicker *ui;
    double min(double a,double b,double c);

    QColor mColor;
    double k,c,m,y;
    int r,g,b;

signals:
    void colorChanged(QColor arg);

};

#endif // COLORPICKER_H

colorPicker.cpp 

#include "colorpicker.h"
#include "ui_colorpicker.h"
#include "toolwindow.h"
#include "mainwindow.h"

#include <QPalette>

ColorPicker::ColorPicker(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::ColorPicker)
{
    ui->setupUi(this);
    connect(ui->redSlider,SIGNAL(valueChanged(int)),SLOT(onColorChanged()));
    connect(ui->greenSlider,SIGNAL(valueChanged(int)),SLOT(onColorChanged()));
    connect(ui->blueSlider,SIGNAL(valueChanged(int)),SLOT(onColorChanged()));
    connect(ui->blackSlider,SIGNAL(valueChanged(int)),SLOT(onCMYKChanged()));
    connect(ui->yellowSlider,SIGNAL(valueChanged(int)),SLOT(onCMYKChanged()));
    connect(ui->magentaSlider,SIGNAL(valueChanged(int)),SLOT(onCMYKChanged()));
    connect(ui->cyanSlider,SIGNAL(valueChanged(int)),SLOT(onCMYKChanged()));
    //connect(this,SIGNAL(colorChanged(QColor)),toolWindow,SLOT(setColor(QColor)));
    onColorChanged();

}

ColorPicker::~ColorPicker()
{
    delete ui;
}

void ColorPicker::on_buttonBox_rejected()
{
    this->close();
}

double ColorPicker::min(double a,double b,double c)
{
    double tmp;
    if(a>b)
    {
        if(a>c)
            tmp = a;
        else
            tmp = c;
    }
    else
    {
        if(b>c)
            tmp = b;
        else
            tmp = c;
    }
    return tmp;
}

void ColorPicker::onColorChanged()
{
    int q1,q2,q3;
    mColor.setRgb(ui->redSlider->value(),ui->greenSlider->value(),ui->blueSlider->value());
    q1=ui->redSlider->value();
    q2=ui->greenSlider->value();
    q3=ui->blueSlider->value();
    palete = ui->widget->palette();
    palete.setColor(QPalette::Window, mColor);
    ui->widget->setPalette(palete);
    emit colorChanged(mColor);
    k=min(q1,q2,q3);
    c=(1-ui->redSlider->value()-k)/(1-k);
    m=(1-ui->greenSlider->value()-k)/(1-k);
    y=(1-ui->blueSlider->value()-k)/(1-k);
    ui->blackSlider->setValue(k);
    ui->cyanSlider->setValue(c);
    ui->magentaSlider->setValue(m);
    ui->yellowSlider->setValue(y);

}
void ColorPicker::onCMYKChanged()
{
    mColor.setRgb(ui->redSlider->value(),ui->greenSlider->value(),ui->blueSlider->value());
    palete = ui->widget->palette();
    palete.setColor(QPalette::Window, mColor);
    ui->widget->setPalette(palete);
    emit colorChanged(mColor);
}

void ColorPicker::on_buttonBox_accepted()
{
    //QPalette pal = ui->widget->palette();
    //pal.setColor(QPalette::Window, mColor);
    //Ui::ToolWindow
    //MainWindow::MainWindow().mColor.setRgb(ui->redSlider->value(),ui->greenSlider->value(),ui->blueSlider->value());
            //mColor.setRgb(ui->redSlider->value(),ui->greenSlider->value(),ui->blueSlider->value());
}

mainWindow.h 

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "toolwindow.h"

namespace Ui {
class MainWindow;
}

class QPainter;
class QImage;
extern int mSelection;


class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
    ToolWindow toolWindow;
    QColor mColor;

protected:
    void paintEvent(QPaintEvent *event) override;
    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
    void mouseReleaseEvent(QMouseEvent *event) override;

private:
    Ui::MainWindow *ui;
    QPainter *mPainter;
    QImage *mImage;
    QPixmap mPix;
    QPoint mBegin;
    QPoint mEnd;

    QRect mRect;
    QLine mLine;
    bool drawStarted;
    bool mPressed;
    int mSize;

};

#endif // MAINWINDOW_H

mainWindow.cpp 

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDesktopWidget>
#include <QMouseEvent>
#include <QPaintEvent>
#include <QPainter>
#include <QImage>

int mSelection = 0;

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    mPix = QPixmap(400,400);
    mPix.fill(Qt::white);
    mPressed = false;
    drawStarted = false;
    mColor = QColor(Qt::black);
    mSize = 2;


    toolWindow.setWindowFlags(Qt::SubWindow | Qt::WindowDoesNotAcceptFocus);
    toolWindow.show();

}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    painter.drawPixmap(0,0,mPix);

    QPen pen(mColor);
    pen.setCapStyle(Qt::RoundCap);
    pen.setWidth(mSize);
    painter.setPen(pen);

    if(mPressed)
    {
        if(mSelection == 2)
            painter.drawRect(mRect);
        else if(mSelection == 4) {
            painter.drawLine(mLine);
        }
        drawStarted = true;
    } else if (drawStarted){
        QPainter tempPainter(&mPix);
        tempPainter.setPen(pen);
        if(mSelection == 2)
            tempPainter.drawRect(mRect);
        else if(mSelection == 4) {
            tempPainter.drawLine(mLine);
        }
        painter.drawPixmap(0,0,mPix);
    }
    painter.end();
}

void MainWindow::mousePressEvent(QMouseEvent *event)
{
    mPressed = true;
    mBegin = event->pos();
    if(mSelection == 2){
        mRect.setTopLeft(event->pos());
        mRect.setBottomRight(event->pos());
    }
    else if(mSelection == 4){
        mLine.setP1(event->pos());
        mLine.setP2(event->pos());
    }
}

void MainWindow::mouseMoveEvent(QMouseEvent *event)
{
    QPen pen(mColor);
    pen.setCapStyle(Qt::RoundCap);
    pen.setWidth(mSize);
    switch(mSelection)
    {
    case 1:
        {
            QPainter penPainter(&mPix);
            penPainter.setPen(pen);
            mEnd = event->pos();
            penPainter.drawLine(mBegin, mEnd);
            mBegin = mEnd;
            update();
            break;
        }
    case 2:
        {
            mRect.setBottomRight(event->pos());
            update();
            break;
        }
    case 4:
        {
            mLine.setP2(event->pos());
            update();
            break;
        }
    }
}

void MainWindow::mouseReleaseEvent(QMouseEvent *event)
{

    mPressed = false;
    update();
}

的main.cpp 

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    a.setStyle("fusion");

    MainWindow w;
    w.show();


    return a.exec();
}

colorPicker.ui 

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>ColorPicker</class>
 <widget class="QDialog" name="ColorPicker">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>355</width>
    <height>293</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Dialog</string>
  </property>
  <widget class="QLabel" name="label">
   <property name="geometry">
    <rect>
     <x>9</x>
     <y>9</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>R</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_2">
   <property name="geometry">
    <rect>
     <x>10</x>
     <y>40</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>G</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_3">
   <property name="geometry">
    <rect>
     <x>10</x>
     <y>70</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>B</string>
   </property>
  </widget>
  <widget class="QSlider" name="redSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>10</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QSlider" name="greenSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>40</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QSlider" name="blueSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>70</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QSpinBox" name="redSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>8</y>
     <width>51</width>
     <height>20</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
  <widget class="QSpinBox" name="greenSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>40</y>
     <width>51</width>
     <height>20</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
  <widget class="QSpinBox" name="blueSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>70</y>
     <width>51</width>
     <height>20</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
  <widget class="QLabel" name="label_4">
   <property name="geometry">
    <rect>
     <x>10</x>
     <y>130</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>K</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_5">
   <property name="geometry">
    <rect>
     <x>10</x>
     <y>160</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>Y</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_6">
   <property name="geometry">
    <rect>
     <x>10</x>
     <y>190</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>M</string>
   </property>
  </widget>
  <widget class="QSlider" name="blackSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>130</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QSlider" name="yellowSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>160</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QSlider" name="magentaSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>190</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QDialogButtonBox" name="buttonBox">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>260</y>
     <width>156</width>
     <height>23</height>
    </rect>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
   <property name="standardButtons">
    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
   </property>
  </widget>
  <widget class="QWidget" name="widget" native="true">
   <property name="geometry">
    <rect>
     <x>230</x>
     <y>10</y>
     <width>101</width>
     <height>271</height>
    </rect>
   </property>
   <property name="minimumSize">
    <size>
     <width>0</width>
     <height>76</height>
    </size>
   </property>
   <property name="baseSize">
    <size>
     <width>0</width>
     <height>0</height>
    </size>
   </property>
   <property name="autoFillBackground">
    <bool>true</bool>
   </property>
  </widget>
  <widget class="QLabel" name="label_7">
   <property name="geometry">
    <rect>
     <x>10</x>
     <y>220</y>
     <width>16</width>
     <height>16</height>
    </rect>
   </property>
   <property name="text">
    <string>C</string>
   </property>
  </widget>
  <widget class="QSlider" name="cyanSlider">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>220</y>
     <width>131</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
   <property name="singleStep">
    <number>1</number>
   </property>
   <property name="orientation">
    <enum>Qt::Horizontal</enum>
   </property>
  </widget>
  <widget class="QSpinBox" name="blackSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>130</y>
     <width>51</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
  <widget class="QSpinBox" name="yellowSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>160</y>
     <width>51</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
  <widget class="QSpinBox" name="magentaSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>190</y>
     <width>51</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
  <widget class="QSpinBox" name="cyanSpinbox">
   <property name="geometry">
    <rect>
     <x>170</x>
     <y>220</y>
     <width>51</width>
     <height>22</height>
    </rect>
   </property>
   <property name="maximum">
    <number>255</number>
   </property>
  </widget>
 </widget>
 <resources/>
 <connections>
  <connection>
   <sender>buttonBox</sender>
   <signal>accepted()</signal>
   <receiver>ColorPicker</receiver>
   <slot>accept()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>185</x>
     <y>291</y>
    </hint>
    <hint type="destinationlabel">
     <x>157</x>
     <y>274</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>buttonBox</sender>
   <signal>rejected()</signal>
   <receiver>ColorPicker</receiver>
   <slot>reject()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>185</x>
     <y>290</y>
    </hint>
    <hint type="destinationlabel">
     <x>286</x>
     <y>274</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>redSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>redSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>163</x>
     <y>23</y>
    </hint>
    <hint type="destinationlabel">
     <x>193</x>
     <y>22</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>redSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>redSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>185</x>
     <y>11</y>
    </hint>
    <hint type="destinationlabel">
     <x>163</x>
     <y>16</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>greenSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>greenSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>163</x>
     <y>52</y>
    </hint>
    <hint type="destinationlabel">
     <x>187</x>
     <y>53</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>greenSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>greenSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>182</x>
     <y>46</y>
    </hint>
    <hint type="destinationlabel">
     <x>163</x>
     <y>46</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>blueSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>blueSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>163</x>
     <y>80</y>
    </hint>
    <hint type="destinationlabel">
     <x>187</x>
     <y>79</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>blueSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>blueSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>179</x>
     <y>81</y>
    </hint>
    <hint type="destinationlabel">
     <x>163</x>
     <y>78</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>cyanSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>cyanSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>178</x>
     <y>227</y>
    </hint>
    <hint type="destinationlabel">
     <x>144</x>
     <y>225</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>cyanSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>cyanSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>143</x>
     <y>236</y>
    </hint>
    <hint type="destinationlabel">
     <x>193</x>
     <y>241</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>magentaSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>magentaSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>144</x>
     <y>202</y>
    </hint>
    <hint type="destinationlabel">
     <x>170</x>
     <y>202</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>magentaSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>magentaSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>191</x>
     <y>191</y>
    </hint>
    <hint type="destinationlabel">
     <x>143</x>
     <y>195</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>yellowSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>yellowSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>146</x>
     <y>171</y>
    </hint>
    <hint type="destinationlabel">
     <x>185</x>
     <y>175</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>yellowSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>yellowSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>181</x>
     <y>168</y>
    </hint>
    <hint type="destinationlabel">
     <x>122</x>
     <y>170</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>blackSlider</sender>
   <signal>valueChanged(int)</signal>
   <receiver>blackSpinbox</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>148</x>
     <y>142</y>
    </hint>
    <hint type="destinationlabel">
     <x>183</x>
     <y>143</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>blackSpinbox</sender>
   <signal>valueChanged(int)</signal>
   <receiver>blackSlider</receiver>
   <slot>setValue(int)</slot>
   <hints>
    <hint type="sourcelabel">
     <x>185</x>
     <y>136</y>
    </hint>
    <hint type="destinationlabel">
     <x>143</x>
     <y>136</y>
    </hint>
   </hints>
  </connection>
 </connections>
</ui>

我达到了这篇文章中使用的字符的限制。

以下是整个项目的链接：http://uploadfile.pl/pokaz/1252644---svem.html

我尝试了带信号和插槽的解决方案，但它对我不起作用 - 我想我做错了。

1 个答案:

答案 0 :(得分：0)

要在按下接受对话框的按钮后，使用NCT_ID获取某些属性的值，则无需使用信号。你必须做的是执行生成主循环的QDialog函数，这样在它之后就不会执行任何行，这个函数返回我们可以分别用Accepted和Rejected检查的已接受和被拒绝的状态。

但为此你必须创建一个将在ColorPicker中称为颜色的getter方法：

<强> *的.h 

exec()

<强> *。CPP 

public:
    QColor color() const;

然后我们重写QColor ColorPicker::color() const { return mColor; } 的广告位on_colorButton_clicked和setColor的函数：

ToolWindow

可以在以下link

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