qt_demoe/gifwidget/gifwidget.cpp

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#pragma execution_character_set("utf-8")
#include "gifwidget.h"
#include "qmutex.h"
#include "qlabel.h"
#include "qlineedit.h"
#include "qpushbutton.h"
#include "qlayout.h"
#include "qpainter.h"
#include "qevent.h"
#include "qstyle.h"
#include "qpixmap.h"
#include "qtimer.h"
#include "qdatetime.h"
#include "qapplication.h"
#include "qdesktopservices.h"
#include "qfiledialog.h"
#include "qurl.h"
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#include "qtextcodec.h"
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#include "qdebug.h"
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#if (QT_VERSION >= QT_VERSION_CHECK(5,0,0))
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#include "qscreen.h"
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#define deskGeometry qApp->primaryScreen()->geometry()
#define deskGeometry2 qApp->primaryScreen()->availableGeometry()
#else
#include "qdesktopwidget.h"
#define deskGeometry qApp->desktop()->geometry()
#define deskGeometry2 qApp->desktop()->availableGeometry()
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#endif
QScopedPointer<GifWidget> GifWidget::self;
GifWidget *GifWidget::Instance()
{
if (self.isNull()) {
static QMutex mutex;
QMutexLocker locker(&mutex);
if (self.isNull()) {
self.reset(new GifWidget);
}
}
return self.data();
}
GifWidget::GifWidget(QWidget *parent) : QDialog(parent)
{
this->initControl();
this->initForm();
}
bool GifWidget::eventFilter(QObject *watched, QEvent *event)
{
static QPoint mousePoint;
static bool mousePressed = false;
QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
if (mouseEvent->type() == QEvent::MouseButtonPress) {
if (mouseEvent->button() == Qt::LeftButton) {
mousePressed = true;
mousePoint = mouseEvent->globalPos() - this->pos();
return true;
}
} else if (mouseEvent->type() == QEvent::MouseButtonRelease) {
mousePressed = false;
return true;
} else if (mouseEvent->type() == QEvent::MouseMove) {
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if (mousePressed) {
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this->move(mouseEvent->globalPos() - mousePoint);
return true;
}
}
return QWidget::eventFilter(watched, event);
}
void GifWidget::resizeEvent(QResizeEvent *e)
{
//拉动右下角改变大小自动赋值
txtWidth->setText(QString::number(widgetMain->width()));
txtHeight->setText(QString::number(widgetMain->height()));
QDialog::resizeEvent(e);
}
void GifWidget::paintEvent(QPaintEvent *)
{
int width = txtWidth->text().toInt();
int height = txtHeight->text().toInt();
rectGif = QRect(borderWidth, widgetTop->height(), width - (borderWidth * 2), height);
QPainter painter(this);
painter.setPen(Qt::NoPen);
painter.setBrush(bgColor);
painter.drawRoundedRect(this->rect(), 5, 5);
painter.setCompositionMode(QPainter::CompositionMode_Clear);
painter.fillRect(rectGif, Qt::SolidPattern);
}
int GifWidget::getBorderWidth() const
{
return this->borderWidth;
}
QColor GifWidget::getBgColor() const
{
return this->bgColor;
}
void GifWidget::initControl()
{
this->setObjectName("GifWidget");
this->resize(800, 600);
this->setSizeGripEnabled(true);
QVBoxLayout *verticalLayout = new QVBoxLayout(this);
verticalLayout->setSpacing(0);
verticalLayout->setContentsMargins(11, 11, 11, 11);
verticalLayout->setObjectName("verticalLayout");
verticalLayout->setContentsMargins(0, 0, 0, 0);
widgetTop = new QWidget(this);
widgetTop->setObjectName("widgetTop");
widgetTop->setMinimumSize(QSize(0, 35));
widgetTop->setMaximumSize(QSize(16777215, 35));
QHBoxLayout *layoutTop = new QHBoxLayout(widgetTop);
layoutTop->setSpacing(0);
layoutTop->setContentsMargins(11, 11, 11, 11);
layoutTop->setObjectName("layoutTop");
layoutTop->setContentsMargins(0, 0, 0, 0);
QPushButton *btnIcon = new QPushButton(widgetTop);
btnIcon->setObjectName("btnIcon");
QSizePolicy sizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
sizePolicy.setHorizontalStretch(0);
sizePolicy.setVerticalStretch(0);
sizePolicy.setHeightForWidth(btnIcon->sizePolicy().hasHeightForWidth());
btnIcon->setSizePolicy(sizePolicy);
btnIcon->setMinimumSize(QSize(35, 0));
btnIcon->setFlat(true);
layoutTop->addWidget(btnIcon);
QLabel *labTitle = new QLabel(widgetTop);
labTitle->setObjectName("labTitle");
layoutTop->addWidget(labTitle);
QSpacerItem *horizontalSpacer = new QSpacerItem(87, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
layoutTop->addItem(horizontalSpacer);
QPushButton *btnClose = new QPushButton(widgetTop);
btnClose->setObjectName("btnClose");
sizePolicy.setHeightForWidth(btnClose->sizePolicy().hasHeightForWidth());
btnClose->setSizePolicy(sizePolicy);
btnClose->setMinimumSize(QSize(35, 0));
btnClose->setFocusPolicy(Qt::NoFocus);
btnClose->setFlat(true);
layoutTop->addWidget(btnClose);
verticalLayout->addWidget(widgetTop);
widgetMain = new QWidget(this);
widgetMain->setObjectName("widgetMain");
QSizePolicy sizePolicy1(QSizePolicy::Preferred, QSizePolicy::Expanding);
sizePolicy1.setHorizontalStretch(0);
sizePolicy1.setVerticalStretch(0);
sizePolicy1.setHeightForWidth(widgetMain->sizePolicy().hasHeightForWidth());
widgetMain->setSizePolicy(sizePolicy1);
verticalLayout->addWidget(widgetMain);
widgetBottom = new QWidget(this);
widgetBottom->setObjectName("widgetBottom");
widgetBottom->setMinimumSize(QSize(0, 45));
widgetBottom->setMaximumSize(QSize(16777215, 45));
QHBoxLayout *layoutBottom = new QHBoxLayout(widgetBottom);
layoutBottom->setSpacing(6);
layoutBottom->setContentsMargins(11, 11, 11, 11);
layoutBottom->setObjectName("layoutBottom");
layoutBottom->setContentsMargins(9, 9, -1, -1);
QLabel *labFps = new QLabel(widgetBottom);
labFps->setObjectName("labFps");
layoutBottom->addWidget(labFps);
txtFps = new QLineEdit(widgetBottom);
txtFps->setObjectName("txtFps");
txtFps->setMaximumSize(QSize(50, 16777215));
txtFps->setAlignment(Qt::AlignCenter);
layoutBottom->addWidget(txtFps);
QLabel *labWidth = new QLabel(widgetBottom);
labWidth->setObjectName("labWidth");
layoutBottom->addWidget(labWidth);
txtWidth = new QLineEdit(widgetBottom);
txtWidth->setObjectName("txtWidth");
txtWidth->setEnabled(true);
txtWidth->setMaximumSize(QSize(50, 16777215));
txtWidth->setAlignment(Qt::AlignCenter);
layoutBottom->addWidget(txtWidth);
QLabel *labHeight = new QLabel(widgetBottom);
labHeight->setObjectName("labHeight");
layoutBottom->addWidget(labHeight);
txtHeight = new QLineEdit(widgetBottom);
txtHeight->setObjectName("txtHeight");
txtHeight->setEnabled(true);
txtHeight->setMaximumSize(QSize(50, 16777215));
txtHeight->setAlignment(Qt::AlignCenter);
layoutBottom->addWidget(txtHeight);
labStatus = new QLabel(widgetBottom);
labStatus->setObjectName("labStatus");
QSizePolicy sizePolicy2(QSizePolicy::Expanding, QSizePolicy::Preferred);
sizePolicy2.setHorizontalStretch(0);
sizePolicy2.setVerticalStretch(0);
sizePolicy2.setHeightForWidth(labStatus->sizePolicy().hasHeightForWidth());
labStatus->setSizePolicy(sizePolicy2);
labStatus->setAlignment(Qt::AlignCenter);
layoutBottom->addWidget(labStatus);
btnStart = new QPushButton(widgetBottom);
btnStart->setObjectName("btnStart");
sizePolicy.setHeightForWidth(btnStart->sizePolicy().hasHeightForWidth());
btnStart->setSizePolicy(sizePolicy);
layoutBottom->addWidget(btnStart);
verticalLayout->addWidget(widgetBottom);
labTitle->setText("GIF录屏工具(QQ:517216493)");
labFps->setText("帧率");
labWidth->setText("宽度");
labHeight->setText("高度");
btnStart->setText("开始");
this->setWindowTitle(labTitle->text());
btnIcon->setIcon(style()->standardIcon(QStyle::SP_ComputerIcon));
btnClose->setIcon(style()->standardIcon(QStyle::SP_TitleBarCloseButton));
connect(btnClose, SIGNAL(clicked(bool)), this, SLOT(closeAll()));
connect(btnStart, SIGNAL(clicked(bool)), this, SLOT(record()));
connect(txtWidth, SIGNAL(editingFinished()), this, SLOT(resizeForm()));
connect(txtHeight, SIGNAL(editingFinished()), this, SLOT(resizeForm()));
}
void GifWidget::initForm()
{
borderWidth = 3;
bgColor = QColor(34, 163, 169);
fps = 10;
txtFps->setText(QString::number(fps));
gifWriter = 0;
timer = new QTimer(this);
timer->setInterval(100);
connect(timer, SIGNAL(timeout()), this, SLOT(saveImage()));
this->setAttribute(Qt::WA_TranslucentBackground);
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this->setWindowFlags(Qt::FramelessWindowHint);
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this->installEventFilter(this);
QStringList qss;
qss.append("QLabel{color:#ffffff;}");
qss.append("#btnClose,#btnIcon{border:none;border-radius:0px;}");
qss.append("#btnClose:hover{background-color:#ff0000;}");
qss.append("#btnClose{border-top-right-radius:5px;}");
qss.append("#labTitle{font:bold 16px;}");
qss.append("#labStatus{font:15px;}");
this->setStyleSheet(qss.join(""));
}
void GifWidget::saveImage()
{
if (!gifWriter) {
return;
}
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#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
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//由于qt4没有RGBA8888,采用最接近RGBA8888的是ARGB32,颜色会有点偏差
QPixmap pix = QPixmap::grabWindow(0, x() + rectGif.x(), y() + rectGif.y(), rectGif.width(), rectGif.height());
QImage image = pix.toImage().convertToFormat(QImage::Format_ARGB32);
#else
QScreen *screen = QApplication::primaryScreen();
QPixmap pix = screen->grabWindow(0, x() + rectGif.x(), y() + rectGif.y(), rectGif.width(), rectGif.height());
QImage image = pix.toImage().convertToFormat(QImage::Format_RGBA8888);
#endif
gif.GifWriteFrame(gifWriter, image.bits(), rectGif.width(), rectGif.height(), fps);
count++;
labStatus->setText(QString("正在录制 第 %1 帧").arg(count));
}
void GifWidget::record()
{
if (btnStart->text() == "开始") {
if (0 != gifWriter) {
delete gifWriter;
gifWriter = 0;
}
//先弹出文件保存对话框
//fileName = qApp->applicationDirPath() + "/" + QDateTime::currentDateTime().toString("yyyy-MM-dd-hh-mm-ss.gif");
fileName = QFileDialog::getSaveFileName(this, "选择保存位置", qApp->applicationDirPath() + "/", "gif图片(*.gif)");
if (fileName.isEmpty()) {
return;
}
int width = txtWidth->text().toInt();
int height = txtHeight->text().toInt();
fps = txtFps->text().toInt();
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#ifdef Q_OS_WIN
//windows上需要先转码
#if defined(_MSC_VER) && (_MSC_VER >= 1400)
QTextCodec *code = QTextCodec::codecForName("utf-8");
#else
QTextCodec *code = QTextCodec::codecForName("gbk");
#endif
const char *name = code->fromUnicode(fileName).constData();
#else
const char *name = fileName.toUtf8().constData();
#endif
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gifWriter = new Gif::GifWriter;
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bool ok = gif.GifBegin(gifWriter, name, width, height, fps);
if (!ok) {
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delete gifWriter;
gifWriter = 0;
return;
}
count = 0;
labStatus->setText("开始录制...");
btnStart->setText("停止");
//延时启动
timer->setInterval(1000 / fps);
QTimer::singleShot(1000, timer, SLOT(start()));
//saveImage();
} else {
timer->stop();
gif.GifEnd(gifWriter);
delete gifWriter;
gifWriter = 0;
labStatus->setText(QString("录制完成 共 %1 帧").arg(count));
btnStart->setText("开始");
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QDesktopServices::openUrl(QUrl::fromLocalFile(fileName));
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}
}
void GifWidget::closeAll()
{
if (0 != gifWriter) {
delete gifWriter;
gifWriter = 0;
}
this->close();
}
void GifWidget::resizeForm()
{
int width = txtWidth->text().toInt();
int height = txtHeight->text().toInt();
this->resize(width, height + widgetTop->height() + widgetBottom->height());
}
void GifWidget::setBorderWidth(int borderWidth)
{
if (this->borderWidth != borderWidth) {
this->borderWidth = borderWidth;
this->update();
}
}
void GifWidget::setBgColor(const QColor &bgColor)
{
if (this->bgColor != bgColor) {
this->bgColor = bgColor;
this->update();
}
}