qt特效按鈕QPushButton
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站长推荐:NSetup一键部署软件
一键式完成美化安装包制作，自动增量升级，数据统计，数字签名。应对各种复杂场景，脚本模块化拆分，常规复杂的脚本代码，图形化设置。无需专业的研发经验，轻松完成项目部署。(www.nsetup.cn)
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//Declaration #include <QtCore> #include <QtGui> class AeroButton : public QPushButton { Q_OBJECT public: AeroButton(QWidget * parent = 0); AeroButton(const QString & text, QWidget * parent = 0); AeroButton(const QIcon & icon, const QString & text, QWidget * parent = 0); virtual ~AeroButton(); void setColor(QColor color) { m_color = color; } void setHighlight(QColor highlight) { m_highlight = highlight; } void setShadow(QColor shadow) { m_shadow = shadow; } //Range: 0.0 [invisible] - 1.0 [opaque] void setOpacity(qreal opacity) { m_opacity = opacity; } //Range: 0 [rectangle] - 99 [oval] void setRoundness(int roundness) { m_roundness = roundness; } protected: void paintEvent(QPaintEvent * pe); void enterEvent(QEvent * e); void leaveEvent(QEvent * e); void mousePressEvent(QMouseEvent * e); void mouseReleaseEvent(QMouseEvent * e); private: QRect calculateIconPosition(QRect button_rect, QSize icon_size); private: bool m_hovered; bool m_pressed; QColor m_color; QColor m_highlight; QColor m_shadow; qreal m_opacity; int m_roundness; }; //Implementation #include "AeroButton.h" AeroButton::AeroButton(QWidget * parent) : QPushButton(parent), m_hovered(false), m_pressed(false), m_color(Qt::gray), m_highlight(Qt::lightGray), m_shadow(Qt::black), m_opacity(1.0), m_roundness(0){} AeroButton::AeroButton(const QString & text, QWidget * parent) : QPushButton(text, parent), m_hovered(false), m_pressed(false), m_color(Qt::gray), m_highlight(Qt::lightGray), m_shadow(Qt::black), m_opacity(1.0), m_roundness(0){} AeroButton::AeroButton(const QIcon & icon, const QString & text, QWidget * parent) : QPushButton(icon, text, parent), m_hovered(false), m_pressed(false), m_color(Qt::gray), m_highlight(Qt::lightGray), m_shadow(Qt::black), m_opacity(1.0), m_roundness(0){} AeroButton::~AeroButton(){} void AeroButton::paintEvent(QPaintEvent * pe) { Q_UNUSED(pe); QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing); //test for state changes QColor button_color; if(this->isEnabled()) { m_hovered ? button_color = m_highlight : button_color = m_color; if(m_pressed) { button_color = m_highlight.darker(50); } } else { button_color = QColor(50, 50, 50); } QRect button_rect = this->geometry(); //outline painter.setPen(QPen(QBrush(Qt::black), 2.0)); QPainterPath outline; outline.addRoundedRect(0, 0, button_rect.width(), button_rect.height(), m_roundness, m_roundness); painter.setOpacity(m_opacity); painter.drawPath(outline); //gradient QLinearGradient gradient(0, 0, 0, button_rect.height()); gradient.setSpread(QGradient::ReflectSpread); gradient.setColorAt(0.0, button_color); gradient.setColorAt(0.4, m_shadow); gradient.setColorAt(0.6, m_shadow); gradient.setColorAt(1.0, button_color); QBrush brush(gradient); painter.setBrush(brush); painter.setPen(QPen(QBrush(button_color), 2.0)); //main button QPainterPath painter_path; painter_path.addRoundedRect(1, 1, button_rect.width() - 2, button_rect.height() - 2, m_roundness, m_roundness); painter.setClipPath(painter_path); painter.setOpacity(m_opacity); painter.drawRoundedRect(1, 1, button_rect.width() - 2, button_rect.height() - 2, m_roundness, m_roundness); //glass highlight painter.setBrush(QBrush(Qt::white)); painter.setPen(QPen(QBrush(Qt::white), 0.01)); painter.setOpacity(0.30); painter.drawRect(1, 1, button_rect.width() - 2, (button_rect.height() / 2) - 2); //text QString text = this->text(); if(!text.isNull()) { QFont font = this->font(); painter.setFont(font); painter.setPen(Qt::white); painter.setOpacity(1.0); painter.drawText(0, 0, button_rect.width(), button_rect.height(), Qt::AlignCenter, text); } //icon QIcon icon = this->icon(); if(!icon.isNull()) { QSize icon_size = this->iconSize(); QRect icon_position = this->calculateIconPosition(button_rect, icon_size); painter.setOpacity(1.0); painter.drawPixmap(icon_position, QPixmap(icon.pixmap(icon_size))); } } void AeroButton::enterEvent(QEvent * e) { m_hovered = true; this->repaint(); QPushButton::enterEvent(e); } void AeroButton::leaveEvent(QEvent * e) { m_hovered = false; this->repaint(); QPushButton::leaveEvent(e); } void AeroButton::mousePressEvent(QMouseEvent * e) { m_pressed = true; this->repaint(); QPushButton::mousePressEvent(e); } void AeroButton::mouseReleaseEvent(QMouseEvent * e) { m_pressed = false; this->repaint(); QPushButton::mouseReleaseEvent(e); } QRect AeroButton::calculateIconPosition(QRect button_rect, QSize icon_size) { int x = (button_rect.width() - icon_size.width()) / 2; int y = (button_rect.height() - icon_size.height()) / 2; int width = icon_size.width(); int height = icon_size.height(); QRect icon_position; icon_position.setX(x); icon_position.setY(y); icon_position.setWidth(width); icon_position.setHeight(height); return icon_position; } //Usage #include "AeroButton.h" AeroButton * button = new AeroButton("Test", this); button->setColor(QColor(Qt::darkRed)); button->setShadow(QColor(Qt::black)); button->setHighlight(QColor(Qt::red)); button->setRoundness(20); button->setOpacity(0.65); connect(button, SIGNAL(clicked()), myWidget, SLOT(handleClick())); |
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