新增颜色拾取器

master
feiyangqingyun 2019-10-15 16:11:03 +08:00
parent 8c0facbcd6
commit ec7a6e1b5a
5 changed files with 277 additions and 1 deletions

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@ -21,4 +21,5 @@ Qt编写的一些开源的demo包括串口调试助手、网络调试助手
| 15 | dbpage | 通用数据库翻页查询 | | 15 | dbpage | 通用数据库翻页查询 |
| 16 | pngtool | PNG图片警告去除工具 | | 16 | pngtool | PNG图片警告去除工具 |
| 17 | savelog | 日志重定向输出类 | | 17 | savelog | 日志重定向输出类 |
| 18 | saveruntime | 运行时间记录类 | | 18 | saveruntime | 运行时间记录类 |
| 19 | colorwidget | 颜色拾取器 |

172
colorwidget/colorwidget.cpp Normal file
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#pragma execution_character_set("utf-8")
#include "colorwidget.h"
#include "qmutex.h"
#include "qgridlayout.h"
#include "qlabel.h"
#include "qlineedit.h"
#include "qapplication.h"
#include "qdesktopwidget.h"
#include "qtimer.h"
#include "qevent.h"
#include "qdebug.h"
#if (QT_VERSION > QT_VERSION_CHECK(5,0,0))
#include "qscreen.h"
#endif
ColorWidget *ColorWidget::instance = 0;
ColorWidget *ColorWidget::Instance()
{
if (!instance) {
static QMutex mutex;
QMutexLocker locker(&mutex);
if (!instance) {
instance = new ColorWidget;
}
}
return instance;
}
ColorWidget::ColorWidget(QWidget *parent) : QWidget(parent)
{
gridLayout = new QGridLayout(this);
gridLayout->setSpacing(6);
gridLayout->setContentsMargins(11, 11, 11, 11);
verticalLayout = new QVBoxLayout();
verticalLayout->setSpacing(0);
labColor = new QLabel(this);
labColor->setText("+");
labColor->setStyleSheet("background-color: rgb(255, 107, 107);color: rgb(250, 250, 250);");
labColor->setAlignment(Qt::AlignCenter);
QFont font;
font.setPixelSize(35);
font.setBold(true);
labColor->setFont(font);
QSizePolicy sizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
sizePolicy.setHorizontalStretch(0);
sizePolicy.setVerticalStretch(0);
sizePolicy.setHeightForWidth(labColor->sizePolicy().hasHeightForWidth());
labColor->setSizePolicy(sizePolicy);
labColor->setMinimumSize(QSize(80, 70));
labColor->setMaximumSize(QSize(80, 70));
labColor->setCursor(QCursor(Qt::CrossCursor));
labColor->setFrameShape(QFrame::StyledPanel);
labColor->setFrameShadow(QFrame::Sunken);
verticalLayout->addWidget(labColor);
label = new QLabel(this);
label->setMinimumSize(QSize(0, 18));
label->setStyleSheet("background-color: rgb(0, 0, 0);color: rgb(200, 200, 200);");
label->setAlignment(Qt::AlignCenter);
verticalLayout->addWidget(label);
gridLayout->addLayout(verticalLayout, 0, 0, 3, 1);
labWeb = new QLabel(this);
gridLayout->addWidget(labWeb, 0, 1, 1, 1);
txtWeb = new QLineEdit(this);
gridLayout->addWidget(txtWeb, 0, 2, 1, 1);
labRgb = new QLabel(this);
gridLayout->addWidget(labRgb, 1, 1, 1, 1);
txtRgb = new QLineEdit(this);
gridLayout->addWidget(txtRgb, 1, 2, 1, 1);
labPoint = new QLabel(this);
gridLayout->addWidget(labPoint, 2, 1, 1, 1);
txtPoint = new QLineEdit(this);
gridLayout->addWidget(txtPoint, 2, 2, 1, 1);
label->setText("当前颜色显示");
labWeb->setText("web值:");
labRgb->setText("rgb值:");
labPoint->setText("坐标值:");
this->setLayout(gridLayout);
this->setWindowTitle("屏幕拾色器");
this->setFixedSize(270, 108);
cp = QApplication::clipboard();
pressed = false;
timer = new QTimer(this);
timer->setInterval(100);
connect(timer, SIGNAL(timeout()), this, SLOT(showColorValue()));
timer->start();
}
ColorWidget::~ColorWidget()
{
}
void ColorWidget::mousePressEvent(QMouseEvent *e)
{
if (labColor->rect().contains(e->pos())) {
pressed = true;
}
}
void ColorWidget::mouseReleaseEvent(QMouseEvent *)
{
pressed = false;
}
void ColorWidget::showColorValue()
{
if (!pressed) {
return;
}
int x = QCursor::pos().x();
int y = QCursor::pos().y();
txtPoint->setText(tr("x:%1 y:%2").arg(x).arg(y));
QString strDecimalValue, strHex, strTextColor;
int red, green, blue;
#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
QPixmap pixmap = QPixmap::grabWindow(QApplication::desktop()->winId(), x, y, 2, 2);
#else
QScreen *screen = QApplication::primaryScreen();
QPixmap pixmap = screen->grabWindow(QApplication::desktop()->winId(), x, y, 2, 2);
#endif
if (!pixmap.isNull()) {
QImage image = pixmap.toImage();
if (!image.isNull()) {
if (image.valid(0, 0)) {
QColor color = image.pixel(0, 0);
red = color.red();
green = color.green();
blue = color.blue();
QString strRed = tr("%1").arg(red & 0xFF, 2, 16, QChar('0'));
QString strGreen = tr("%1").arg(green & 0xFF, 2, 16, QChar('0'));
QString strBlue = tr("%1").arg(blue & 0xFF, 2, 16, QChar('0'));
strDecimalValue = tr("%1, %2, %3").arg(red).arg(green).arg(blue);
strHex = tr("#%1%2%3").arg(strRed.toUpper()).arg(strGreen.toUpper()).arg(strBlue.toUpper());
}
}
}
if (red > 200 && green > 200 && blue > 200) {
strTextColor = "10, 10, 10";
} else {
strTextColor = "255, 255, 255";
}
QString str = tr("background-color: rgb(%1);color: rgb(%2)").arg(strDecimalValue).arg(strTextColor);
labColor->setStyleSheet(str);
txtRgb->setText(strDecimalValue);
txtWeb->setText(strHex);
}

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colorwidget/colorwidget.h Normal file
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#ifndef COLORWIDGET_H
#define COLORWIDGET_H
#include <QWidget>
class QGridLayout;
class QVBoxLayout;
class QLabel;
class QLineEdit;
#ifdef quc
#if (QT_VERSION < QT_VERSION_CHECK(5,7,0))
#include <QtDesigner/QDesignerExportWidget>
#else
#include <QtUiPlugin/QDesignerExportWidget>
#endif
class QDESIGNER_WIDGET_EXPORT ColorWidget : public QWidget
#else
class ColorWidget : public QWidget
#endif
{
Q_OBJECT
public:
static ColorWidget *Instance();
explicit ColorWidget(QWidget *parent = 0);
~ColorWidget();
protected:
void mousePressEvent(QMouseEvent *);
void mouseReleaseEvent(QMouseEvent *);
private:
static ColorWidget *instance;
QClipboard *cp;
bool pressed;
QTimer *timer;
QGridLayout *gridLayout;
QVBoxLayout *verticalLayout;
QLabel *labColor;
QLabel *label;
QLabel *labWeb;
QLineEdit *txtWeb;
QLabel *labRgb;
QLineEdit *txtRgb;
QLabel *labPoint;
QLineEdit *txtPoint;
private Q_SLOTS:
void showColorValue();
};
#endif // COLORWIDGET_H

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@ -0,0 +1,18 @@
#-------------------------------------------------
#
# Project created by QtCreator 2017-01-05T22:11:54
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = colorwidget
TEMPLATE = app
DESTDIR = $$PWD/../bin
CONFIG += warn_off
SOURCES += main.cpp
SOURCES += colorwidget.cpp
HEADERS += colorwidget.h

30
colorwidget/main.cpp Normal file
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#pragma execution_character_set("utf-8")
#include "colorwidget.h"
#include <QApplication>
#include <QTextCodec>
#include <QIcon>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
a.setFont(QFont("Microsoft Yahei", 9));
#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
#if _MSC_VER
QTextCodec *codec = QTextCodec::codecForName("gbk");
#else
QTextCodec *codec = QTextCodec::codecForName("utf-8");
#endif
QTextCodec::setCodecForLocale(codec);
QTextCodec::setCodecForCStrings(codec);
QTextCodec::setCodecForTr(codec);
#else
QTextCodec *codec = QTextCodec::codecForName("utf-8");
QTextCodec::setCodecForLocale(codec);
#endif
ColorWidget::Instance()->show();
return a.exec();
}