387 lines
13 KiB
C++
387 lines
13 KiB
C++
/**
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* @file PaiTitleBar.cpp
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* @date 2012-11-29
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*/
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#include <QMouseEvent>
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#include <QHBoxLayout>
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#include <QPainter>
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#include <QMenu>
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#include "PaiTitleBar.h"
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#include "PaiToolButton.h"
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using namespace pai::gui;
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const int titleBarHeight = 30;
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const int titleNameCenterStand = 1300; // titlename默认采用titlebar整个宽幅居中，当titlebar宽幅小于此值时，为显示美观及避免文字被遮挡采用titlebar空白居中
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const int titleSpaceCenterStand = 300; // 当titlebar整个除去标题文字后的空白小于此值时，为显示美观采用titlebar空白居中
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PaiStatusBar::PaiStatusBar(QWidget *pParent) :
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QStatusBar(pParent)
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{
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setObjectName("PaiStatusBar");
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setSizeGripEnabled(false);
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setStyleSheet("QStatusBar#PaiStatusBar{background-color: #E4EEFA}");
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}
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PaiStatusBar::~PaiStatusBar()
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{
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}
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///////////////////////////////////////////////
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PaiTitleBar::PaiTitleBar(QWidget *parent) :
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QWidget(parent)
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{
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setMaximumHeight(titleBarHeight);
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setMinimumHeight(titleBarHeight);
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setContentsMargins(0, 0, 0, 0);
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m_pMinimumButton = new PaiToolButton(this);
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m_pMinimumButton->setObjectName("MinimumButton");
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m_pMaximumButton = new PaiToolButton(this);
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m_pMaximumButton->setObjectName("MaximumButton");
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m_pExitButton = new PaiToolButton(this);
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m_pExitButton->setObjectName("ExitButton");
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m_pLogoButton = new PaiToolButton(this);
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m_pLogoButton->setObjectName("LogoButton");
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QSize size = QSize(titleBarHeight, titleBarHeight);
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m_pMinimumButton->setFocusPolicy(Qt::NoFocus);
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m_pMinimumButton->setMaximumSize(size);
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m_pMinimumButton->setMinimumSize(size);
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m_pMaximumButton->setFocusPolicy(Qt::NoFocus);
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m_pMaximumButton->setMaximumSize(size);
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m_pMaximumButton->setMinimumSize(size);
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m_pExitButton->setFocusPolicy(Qt::NoFocus);
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m_pExitButton->setMaximumSize(QSize(size.width() + 10, size.height()));
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m_pExitButton->setMinimumSize(QSize(size.width() + 10, size.height()));
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m_pLogoButton->setFocusPolicy(Qt::NoFocus);
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m_pLogoButton->setMaximumSize(size);
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m_pLogoButton->setMinimumSize(size);
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m_pRightHLayout = new QHBoxLayout;
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m_pRightHLayout->setContentsMargins(0, 0, 0, 0);
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m_pRightHLayout->setSpacing(0);
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m_pRightHLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
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m_pLeftHLayout = new QHBoxLayout;
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m_pLeftHLayout->setContentsMargins(0, 0, 0, 0);
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m_pLeftHLayout->setSpacing(0);
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m_pLeftHLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
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QHBoxLayout *pMainHLayout = new QHBoxLayout(this);
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pMainHLayout->setContentsMargins(0, 0, 0, 0);
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pMainHLayout->setSpacing(0);
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pMainHLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
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m_pLeftHLayout->addWidget(m_pLogoButton);
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m_pRightHLayout->addWidget(m_pMinimumButton);
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m_pRightHLayout->addWidget(m_pMaximumButton);
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m_pRightHLayout->addWidget(m_pExitButton);
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pMainHLayout->addLayout(m_pLeftHLayout);
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pMainHLayout->addStretch(1);
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pMainHLayout->addLayout(m_pRightHLayout);
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setLayout(pMainHLayout);
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connect(m_pExitButton, SIGNAL(clicked()), this, SIGNAL(HandleExitButton()));
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connect(m_pMinimumButton, SIGNAL(clicked()), this, SIGNAL(HandleMinimumButton()));
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connect(m_pMaximumButton, SIGNAL(clicked()), this, SIGNAL(HandleMaximumButton()));
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connect(m_pMaximumButton, SIGNAL(clicked()), this, SLOT(ChangeRestoreButtonState()));
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connect(m_pLogoButton, SIGNAL(pressed()), m_pLogoButton, SLOT(showMenu()));
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setStyleSheet("QToolButton{background-color:qlineargradient(x1:0,y1:0,x2:0,y2:1,stop:0 #F3F9FE,stop:1 #C9DDEB);"
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" border:0px}"
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"QToolButton::menu-indicator{image:None}"
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"QToolButton#ExitButton{border-image:url(:/Close_a.png)}"
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"QToolButton#ExitButton:hover{background-image:url(:/Close_hover.png);"
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" border-style:none}"
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"QToolButton#ExitButton:pressed{background-image:url(:/Close_click.png);"
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" border-style:none}"
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"QToolButton#MaximumButton{border-image:url(:/minimize_status.png)}"
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"QToolButton#MaximumButton:hover{background-image:url(:/Minimize_hover.png);"
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" border-style:none}"
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"QToolButton#MaximumButton:pressed{background-image:url(:/Minimize_click.png);"
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" border-style:none}"
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"QToolButton#MinimumButton{border-image:url(:/Minimize.png)}"
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"QToolButton#MinimumButton:hover{background-image:url(:/Minimize_hover.png);"
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" border-style:none}"
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"QToolButton#MinimumButton:pressed{background-image:url(:/Minimize_click.png);"
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" border-style:none}"
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"QToolButton#LogoButton{border-image:url(:/Logo_a.png)}");
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// 默认仅显示最小化，最大化和关闭按钮
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SetTitleBarFlags(CloseButtonHint | MaximumButtonHint | MinimumButtonHint);
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}
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PaiTitleBar::~PaiTitleBar()
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{
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}
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void PaiTitleBar::resizeEvent(QResizeEvent *pEvent)
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{
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int nowSizeWidth = pEvent->size().width();
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int basicStringWidth = 20;
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int buttonWidth = 0;
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QList< PaiToolButton * > lstToolButton;
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if(m_titleBarFlags & PaiTitleBar::LogoButtonHint)
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{
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lstToolButton.append(m_pLogoButton);
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}
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if(m_titleBarFlags & PaiTitleBar::CloseButtonHint)
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{
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lstToolButton.append(m_pExitButton);
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}
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if(m_titleBarFlags & PaiTitleBar::MaximumButtonHint)
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{
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lstToolButton.append(m_pMaximumButton);
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}
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if(m_titleBarFlags & PaiTitleBar::MinimumButtonHint)
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{
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lstToolButton.append(m_pMinimumButton);
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}
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for(int i = 0; i < lstToolButton.size(); ++i)
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{
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lstToolButton[i]->hide();
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}
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for(int i = 0; i < lstToolButton.size(); ++i)
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{
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buttonWidth += lstToolButton[i]->size().width();
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if(nowSizeWidth - buttonWidth > basicStringWidth)
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{
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lstToolButton[i]->show();
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}
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}
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QWidget::resizeEvent(pEvent);
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}
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void PaiTitleBar::paintEvent(QPaintEvent *pEvent)
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{
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int iPixelTitile = fontMetrics().width(m_title);
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QRect titleRect = GetTitleNameRect(iPixelTitile);
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QString elidedTitle = fontMetrics().elidedText(m_title, Qt::ElideRight, titleRect.width());
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QLinearGradient linearGradient(0, 0, 0, titleBarHeight);
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linearGradient.setColorAt(0.0, QColor("#F3F9FE"));
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linearGradient.setColorAt(1.0, QColor("#C9DDEB"));
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QWidget::paintEvent(pEvent);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing, true);
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painter.fillRect(rect(), QBrush(linearGradient));
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painter.setBrush(QBrush(Qt::black));
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painter.drawText(titleRect, Qt::AlignCenter, elidedTitle);
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}
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QRect PaiTitleBar::GetTitleNameRect(int pixelTitle)
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{
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QRect titleRect;
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int wdif = qAbs(m_pRightHLayout->geometry().width() - m_pLeftHLayout->geometry().width());
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int iSpaceWidth = this->width() - m_pRightHLayout->geometry().width() - m_pLeftHLayout->geometry().width();
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int iSpaceLeave = (titleSpaceCenterStand >= wdif) ? titleSpaceCenterStand : wdif;
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if(iSpaceWidth - pixelTitle <= iSpaceLeave) // 如果空白区域少于指定值，采用空白居中
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{
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titleRect = QRect(m_pLeftHLayout->geometry().topRight(), m_pRightHLayout->geometry().bottomLeft());
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}
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else
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{
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float fScale = 0.5; // 渐变因子
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int iPosx = titleNameCenterStand - wdif / fScale; // 由空白居中到标题栏居中渐变的起始宽度
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if(this->width() <= iPosx) // 当标题栏宽度小于起始宽度时，直接采用空白居中
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{
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titleRect = QRect(m_pLeftHLayout->geometry().topRight(), m_pRightHLayout->geometry().bottomLeft());
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}
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else
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{
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int offset = (this->width() - iPosx) * fScale; // 偏移量
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if(offset >= wdif) // 当偏移量大于宽度差值，采用标题栏居中
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{
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int iPox2 = m_pRightHLayout->geometry().width()
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+ m_pLeftHLayout->geometry().width()
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+ pixelTitle
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+ iSpaceLeave
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+ wdif / fScale;//标题文字较长时，由标题栏到空白居中渐变的起始宽度
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QPoint bottomleftPt = m_pRightHLayout->geometry().bottomRight();
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if(this->width() < iPox2) // 当标题栏宽度小于渐变宽度时，采用标题栏-offset居中
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{
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offset = (iPox2 - this->width()) * fScale;
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if(offset < wdif)
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{
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bottomleftPt.setX(bottomleftPt.x() - offset);
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}
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}
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titleRect = QRect(m_pLeftHLayout->geometry().topLeft(), bottomleftPt);
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}
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else // 当偏移量小于宽度差值，采用空白+offset居中
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{
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QPoint bottomleftPt = m_pRightHLayout->geometry().bottomLeft();
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bottomleftPt.setX(bottomleftPt.x() + offset);
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titleRect = QRect(m_pLeftHLayout->geometry().topRight(), bottomleftPt);
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}
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}
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}
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return titleRect;
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}
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void PaiTitleBar::mousePressEvent(QMouseEvent *pEvent)
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{
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QWidget::mousePressEvent(pEvent);
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// 左键+有父控件+没触发resize事件（暂时用鼠标样式判断）
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if((pEvent->button() == Qt::LeftButton) && parentWidget() && (cursor().shape() == Qt::ArrowCursor))
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{
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m_MovePosition = pEvent->globalPos() - parentWidget()->frameGeometry().topLeft();
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pEvent->accept();
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}
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else
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{
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pEvent->ignore();
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}
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}
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void PaiTitleBar::mouseReleaseEvent(QMouseEvent *pEvent)
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{
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QWidget::mouseReleaseEvent(pEvent);
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// 左键+有父控件+没触发resize事件（暂时用鼠标样式判断）
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if((pEvent->button() == Qt::LeftButton) && parentWidget() && (cursor().shape() == Qt::ArrowCursor))
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{
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m_MovePosition = QPoint(-1, -1);
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pEvent->accept();
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}
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else
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{
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pEvent->ignore();
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}
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}
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void PaiTitleBar::mouseMoveEvent(QMouseEvent *pEvent)
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{
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QWidget::mouseMoveEvent(pEvent);
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// 左键+有父控件+没触发resize事件（暂时用鼠标样式判断）
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if((pEvent->buttons() & Qt::LeftButton) && parentWidget() && (cursor().shape() == Qt::ArrowCursor))
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{
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if(m_MovePosition != QPoint(-1, -1))
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{
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// 主窗口move事件
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parentWidget()->move(pEvent->globalPos() - m_MovePosition);
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pEvent->accept();
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}
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else
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{
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pEvent->ignore();
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}
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}
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}
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void PaiTitleBar::mouseDoubleClickEvent(QMouseEvent *pEvent)
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{
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QWidget::mouseDoubleClickEvent(pEvent);
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// 左键+有父控件+没触发resize事件（暂时用鼠标样式判断）
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if((pEvent->button() == Qt::LeftButton && parentWidget()) && (cursor().shape() == Qt::ArrowCursor))
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{
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if(parentWidget()->isMaximized())
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{
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parentWidget()->showNormal();
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ChangeRestoreButtonState(false);
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}
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else
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{
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parentWidget()->showMaximized();
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ChangeRestoreButtonState(true);
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}
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}
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}
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void PaiTitleBar::SetTitle(const QString & strTitle)
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{
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m_title = strTitle;
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update();
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}
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void PaiTitleBar::SetTitleBarFlags(TitleBarFlags flags)
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{
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m_pExitButton->setVisible(flags & PaiTitleBar::CloseButtonHint);
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m_pMaximumButton->setVisible(flags & PaiTitleBar::MaximumButtonHint);
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m_pMinimumButton->setVisible(flags & PaiTitleBar::MinimumButtonHint);
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m_pLogoButton->setVisible(flags & PaiTitleBar::LogoButtonHint);
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m_titleBarFlags = flags;
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}
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PaiTitleBar::TitleBarFlags PaiTitleBar::GetTitleBarFlags() const
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{
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return m_titleBarFlags;
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}
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void PaiTitleBar::CreateSystemMenu(QMenu *pMenu)
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{
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m_pLogoButton->setMenu(pMenu);
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}
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void PaiTitleBar::InsertWidget(QWidget *pWidget, Qt::Alignment alignment)
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{
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if(alignment == Qt::AlignRight)
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{
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m_pRightHLayout->insertWidget(0, pWidget);
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}
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else if(alignment == Qt::AlignLeft)
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{
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m_pLeftHLayout->addWidget(pWidget);
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}
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}
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void PaiTitleBar::ChangeRestoreButtonState()
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{
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if(parentWidget())
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{
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if(parentWidget()->isMaximized())
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{
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parentWidget()->showNormal();
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ChangeRestoreButtonState(false);
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}
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else
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{
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parentWidget()->showMaximized();
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ChangeRestoreButtonState(true);
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}
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}
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}
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void PaiTitleBar::ChangeRestoreButtonState(bool maximized)
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{
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if(maximized)
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{
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m_pMaximumButton->setStyleSheet("QToolButton#MaximumButton{border-image:url(:/minimize_status.png)}"
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"QToolButton#MaximumButton:hover{background-image:url(:/Minimize_hover.png);"
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" border-style:none}"
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"QToolButton#MaximumButton:pressed{background-image:url(:/Minimize_click.png);"
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" border-style:none}");
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}
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else
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{
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m_pMaximumButton->setStyleSheet("QToolButton#MaximumButton{border-image:url(:/maximum.png)}"
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"QToolButton#MaximumButton:hover{background-image:url(:/maximum_hover.png);"
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" border-style:none}"
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"QToolButton#MaximumButton:pressed{background-image:url(:/maximum_click.png);"
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" border-style:none}");
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}
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}
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