Qt 自定义调色板

调色板"/>

Qt 自定义调色板

被调色板困惑很久了，查了网上资料也没有自己想要的，就决定写一个自定义调色板。

直接上代码。

头文件：

#pragma once#include <QToolButton>
#include <QtWidgets>/*Ivy:下拉框中调色板的颜色*/
const QColor colors[6][10] =
{{ QColor("#ffffff"), QColor("#e5e5e7"), QColor("#cccccc"), QColor("#9a9a9a"), QColor("#7f7f7f"),QColor("#666666"), QColor("#4c4c4c"), QColor("#333333"), QColor("#191919"), QColor("#000000")},{ QColor("#f759ab"), QColor("#ff4d4f"), QColor("#ffa940"), QColor("#ffdf3d"), QColor("#a0d911"),QColor("#52c41a"), QColor("#13c2c2"), QColor("#1890ff"), QColor("#2f54eb"), QColor("#722ed1")},{ QColor("#ffd6e7"), QColor("#ffccc7"), QColor("#ffe7ba"), QColor("#ffffb8"), QColor("#f4ffb8"),QColor("#d9f7be"), QColor("#b5f5ec"), QColor("#bae7ff"), QColor("#d6e4ff"), QColor("#efdbff")},{ QColor("#ff85c0"), QColor("#ff7875"), QColor("#ffc069"), QColor("#fff566"), QColor("#d3f261"),QColor("#95de64"), QColor("#5cdbd3"), QColor("#69c0ff"), QColor("#85a5ff"), QColor("#b37feb")},{ QColor("#eb2f96"), QColor("#f5222d"), QColor("#fa8c16"),QColor("#fadb14"), QColor("#a0d911"),QColor("#52c41a"), QColor("#13c2c2"), QColor("#1890ff"), QColor("#2f54eb"), QColor("#722ed1")},{ QColor("#9e1068"), QColor("#a8171b"), QColor("#ad4e00"), QColor("#ad8b00"), QColor("#5b8c00"),QColor("#006075"), QColor("#006d75"), QColor("#0050b3"), QColor("#10239e"), QColor("#391085")}
};class BLColorCombox : public QToolButton
{Q_OBJECTpublic:BLColorCombox(QWidget *parent);~BLColorCombox();void setButtonIcon(const QString &imageFile, QColor color);void setBtnColorChange(const QColor &color);private:QMenu* createColorMenu(const char *slot, const char *slotColorBoard);QIcon createColorToolButtonIcon(const QString &imageFile, QColor color);QIcon createColorIcon(QColor color);signals:void signColorChanged(QColor color);private slots:void OnColorChanged();           // 文本颜色设置void OnShowColorBoard();         // 颜色板void slotBtnColorChange(QColor color);private:QLabel * m_pShowColorLable = nullptr;
};

源文件：

#pragma execution_character_set("utf-8") 
#include "bl_color_combox.h"BLColorCombox::BLColorCombox(QWidget *parent): QToolButton(parent)
{setPopupMode(QToolButton::MenuButtonPopup);setMenu(createColorMenu(SLOT(OnColorChanged()), SLOT(OnShowColorBoard())));setAutoFillBackground(true);m_pShowColorLable = new QLabel(this);m_pShowColorLable->setGeometry(5, 5, 12, 12);m_pShowColorLable->setVisible(true);m_pShowColorLable->setAutoFillBackground(true);m_pShowColorLable->setPalette(QPalette(QColor("#FF0000")));connect(this, &BLColorCombox::signColorChanged , this, &BLColorCombox::slotBtnColorChange);
}BLColorCombox::~BLColorCombox()
{
}void BLColorCombox::setButtonIcon(const QString &imageFile, QColor color)
{setIcon(createColorToolButtonIcon(imageFile, color));
}void BLColorCombox::setBtnColorChange(const QColor &color)
{m_pShowColorLable->setPalette(QPalette(color));
}QMenu* BLColorCombox::createColorMenu(const char *slot, const char *slotColorBoard)
{// 设置透明色QAction *pActionTransparent = new QAction(this);pActionTransparent->setData(QColor(0, 0, 0, 0));pActionTransparent->setText(QObject::tr("None"));connect(pActionTransparent, SIGNAL(triggered()), this, slot);QToolButton *pBtnTransparent = new QToolButton;pBtnTransparent->setFixedSize(QSize(142, 16));pBtnTransparent->setText((QObject::tr("自定义1")));pBtnTransparent->setDefaultAction(pActionTransparent);// 选择其他颜色QToolButton *pBtnOtherColor = new QToolButton;pBtnOtherColor->setText((QObject::tr("自定义2")));pBtnOtherColor->setFixedSize(QSize(142, 20));pBtnOtherColor->setAutoRaise(true);pBtnOtherColor->setToolTip((QObject::tr("自定义3")));connect(pBtnOtherColor, SIGNAL(clicked()), this, slotColorBoard);// 基本色QGridLayout *pGridLayout = new QGridLayout;pGridLayout->setAlignment(Qt::AlignCenter);pGridLayout->setContentsMargins(0, 0, 0, 0);pGridLayout->setSpacing(2);for (int iRow = 0; iRow < 6; iRow++){for (int iCol = 0; iCol < 8; iCol++){QAction *action = new QAction(this);action->setData(colors[iRow][iCol]);action->setIcon(createColorIcon(colors[iRow][iCol]));connect(action, SIGNAL(triggered()), this, slot);QToolButton *pBtnColor = new QToolButton;pBtnColor->setFixedSize(QSize(16, 16));pBtnColor->setAutoRaise(true);pBtnColor->setDefaultAction(action);pBtnColor->setToolTip("white");pGridLayout->addWidget(pBtnColor, iRow, iCol);}}QWidget *widget = new QWidget;widget->setLayout(pGridLayout);QVBoxLayout *pVLayout = new QVBoxLayout;pVLayout->addWidget(pBtnTransparent);pVLayout->addWidget(widget);pVLayout->addWidget(pBtnOtherColor);QMenu *colorMenu = new QMenu(this);colorMenu->setLayout(pVLayout);return colorMenu;
}QIcon BLColorCombox::createColorToolButtonIcon(const QString &imageFile, QColor color)
{QPixmap pixmap(16, 18);pixmap.fill(Qt::transparent);QPainter painter(&pixmap);QPixmap image(imageFile);QRect target(0, 0, 16, 16);QRect source(0, 0, 16, 16);painter.fillRect(QRect(0, 13, 16, 4), color);painter.drawPixmap(target, image, source);return QIcon(pixmap);//return QIcon("");
}QIcon BLColorCombox::createColorIcon(QColor color)
{QPixmap pixmap(16, 16);QPainter painter(&pixmap);painter.setPen(Qt::NoPen);painter.fillRect(QRect(0, 0, 16, 16), color);return QIcon(pixmap);
}void BLColorCombox::OnColorChanged()
{QAction *pFillColorAction = new QAction(this);pFillColorAction = qobject_cast<QAction *>(sender());QColor color = qvariant_cast<QColor>(pFillColorAction->data());this->menu()->close();emit signColorChanged(color);
}void BLColorCombox::OnShowColorBoard()
{this->menu()->close();QColor color = QColorDialog::getColor(Qt::black, this);if (!color.isValid())return;emit signColorChanged(color);
}void BLColorCombox::slotBtnColorChange(QColor color)
{m_pShowColorLable->setPalette(QPalette(color));
}