QPalette QColor 窗体颜色主题案例

#include "palette.h" #include <QHBoxLayout> #include <QGridLayout> Palette::Palette(QWidget *parent) : QDialog(parent) { createCtrlFrame(); createContentFrame(); QHBoxLayout *mainLayout = new QHBoxLayout(this); mainLayout->addWidget(ctrlFrame); mainLayout->addWidget(contentFrame); } Palette::~Palette() { } void Palette::createCtrlFrame() { ctrlFrame = new QFrame; windowLabel = new QLabel(tr("QPalette::Window: ")); windowComboBox = new QComboBox; fillColorList(windowComboBox); //向下拉列表中插入各种不同的颜色选项 connect(windowComboBox, SIGNAL(activated(int)), this, SLOT(ShowWindow())); //连接 改变背景色的槽函数 windowTextLabel = new QLabel(tr("QPalette::WindowText: ")); windowTextComboBox = new QComboBox; fillColorList(windowTextComboBox); connect(windowTextComboBox, SIGNAL(activated(int)), this, SLOT(ShowWindowText())); buttonLabel = new QLabel(tr("QPalette::Button: ")); buttonComboBox = new QComboBox; fillColorList(buttonComboBox); connect(buttonComboBox, SIGNAL(activated(int)), this, SLOT(ShowButton())); buttonTextLabel = new QLabel(tr("QPalette::ButtonText: ")); buttonTextComboBox = new QComboBox; fillColorList(buttonTextComboBox); connect(buttonTextComboBox, SIGNAL(activated(int)), this, SLOT(ShowButtonText())); baseLabel = new QLabel(tr("QPalette::Base: ")); baseComboBox = new QComboBox; fillColorList(baseComboBox); connect(baseComboBox, SIGNAL(activated(int)), this, SLOT(ShowBase())); QGridLayout *mainLayout = new QGridLayout(ctrlFrame); mainLayout->setSpacing(20); mainLayout->addWidget(windowLabel, 0 ,0); mainLayout->addWidget(windowComboBox, 0 ,1); mainLayout->addWidget(windowTextLabel, 1 ,0); mainLayout->addWidget(windowTextComboBox, 1 ,1); mainLayout->addWidget(buttonLabel, 2 ,0); mainLayout->addWidget(buttonComboBox, 2 ,1); mainLayout->addWidget(buttonTextLabel, 3 ,0); mainLayout->addWidget(buttonTextComboBox, 3 ,1); mainLayout->addWidget(baseLabel, 4 ,0); mainLayout->addWidget(baseComboBox, 4 ,1); } void Palette::createContentFrame() { contentFrame = new QFrame; contentFrame->setAutoFillBackground(true); //* 后加内容 label1 = new QLabel(tr("请选择一个值: ")); comboBox1 = new QComboBox; label2 = new QLabel(tr("请输入字符串: ")); lineEdit2 = new QLineEdit; textEdit = new QTextEdit; QGridLayout *TopLayout = new QGridLayout; TopLayout->addWidget(label1, 0, 0); TopLayout->addWidget(comboBox1, 0, 1); TopLayout->addWidget(label2, 1, 0); TopLayout->addWidget(lineEdit2, 1, 1); TopLayout->addWidget(textEdit, 2, 0, 1, 2); okBtn = new QPushButton(tr("确认")); CancelBtn = new QPushButton(tr("取消")); CancelBtn->setAutoFillBackground(true); //* 后加内容 相当于开关 打开可设置按钮背景色 按钮下的一小块部分 CancelBtn->setFlat(true); //* 后加内容 相当于开关 打开可设置按钮背景色 按钮表面的那部分 QHBoxLayout *BottomLayout = new QHBoxLayout; BottomLayout->addStretch(1); BottomLayout->addWidget(okBtn); BottomLayout->addWidget(CancelBtn); QVBoxLayout *mainLayout = new QVBoxLayout(contentFrame); mainLayout->addLayout(TopLayout); mainLayout->addLayout(BottomLayout); } void Palette::ShowWindow() { QStringList colorList = QColor::colorNames(); QColor color = QColor(colorList[windowComboBox->currentIndex()]); //获取当前选择的颜色值 QPalette p = contentFrame->palette(); //获取右部分窗体的调色板信息 p.setColor(QPalette::Window, color); //设置contentFrame窗体的Window类颜色 即背景色 参数1:设置的主题色 参数2:具体的颜色值 contentFrame->setPalette(p); //将获取到的颜色值进行应用 contentFrame->update(); } void Palette::ShowWindowText() { QStringList colorList = QColor::colorNames(); QColor color = colorList[windowTextComboBox->currentIndex()]; //获取当前选择的颜色值 QPalette p = contentFrame->palette(); p.setColor(QPalette::WindowText, color); contentFrame->setPalette(p); } void Palette::ShowButton() { QStringList colorList = QColor::colorNames(); QColor color = QColor(colorList[buttonComboBox->currentIndex()]); //获取当前选择的颜色值 QPalette p = contentFrame->palette(); p.setColor(QPalette::Button, color); contentFrame->setPalette(p); contentFrame->update(); } void Palette::ShowButtonText() { QStringList colorList = QColor::colorNames(); QColor color = QColor(colorList[buttonTextComboBox->currentIndex()]); //获取当前选择的颜色值 QPalette p = contentFrame->palette(); p.setColor(QPalette::ButtonText, color); contentFrame->setPalette(p); } void Palette::ShowBase() { QStringList colorList = QColor::colorNames(); QColor color = QColor(colorList[baseComboBox->currentIndex()]); //获取当前选择的颜色值 QPalette p = contentFrame->palette(); p.setColor(QPalette::Base, color); contentFrame->setPalette(p); } void Palette::fillColorList(QComboBox *comboBox) { QStringList colorList = QColor::colorNames(); //获得Qt所有导致名称的颜色列表 返回的是一个字符串列表colorlist QString color; foreach(color, colorList) { QPixmap pix(QSize(70, 20)); //新建一个QPixmap对象 pix作为显示颜色的图标 pix.fill(QColor(color)); //为 pix 填充当前的颜色 comboBox->addItem(QIcon(pix), NULL); // 调用QcomboBox 的addItem 为下拉列表插入一个条目 用准备好的pix作为插入条目的图标 名称为Null 不显示名称 comboBox->setIconSize(QSize(70, 20)); //设置图标尺寸 comboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents); // 下拉表框的调整策略为AdjustToContents 符合内容的大小 } }