395 lines
13 KiB
C++
395 lines
13 KiB
C++
/*
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* MIT License
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*
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* Copyright (C) 2022 by wangwenx190 (Yuhang Zhao)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "standardtitlebar.h"
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#include "standardtitlebar_p.h"
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#include "standardsystembutton.h"
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#include <QtCore/qcoreevent.h>
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#include <QtWidgets/qlabel.h>
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#include <QtWidgets/qboxlayout.h>
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#include <QtWidgets/qstyleoption.h>
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#include <QtWidgets/qstylepainter.h>
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FRAMELESSHELPER_BEGIN_NAMESPACE
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using namespace Global;
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FRAMELESSHELPER_STRING_CONSTANT2(StyleSheetColorTemplate, "color: rgba(%1, %2, %3, %4);")
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FRAMELESSHELPER_STRING_CONSTANT2(StyleSheetBackgroundColorTemplate, "background-color: rgba(%1, %2, %3, %4);")
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StandardTitleBarPrivate::StandardTitleBarPrivate(StandardTitleBar *q) : QObject(q)
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{
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Q_ASSERT(q);
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if (!q) {
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return;
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}
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q_ptr = q;
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initialize();
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}
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StandardTitleBarPrivate::~StandardTitleBarPrivate() = default;
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StandardTitleBarPrivate *StandardTitleBarPrivate::get(StandardTitleBar *pub)
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{
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Q_ASSERT(pub);
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if (!pub) {
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return nullptr;
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}
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return pub->d_func();
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}
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const StandardTitleBarPrivate *StandardTitleBarPrivate::get(const StandardTitleBar *pub)
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{
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Q_ASSERT(pub);
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if (!pub) {
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return nullptr;
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}
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return pub->d_func();
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}
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Qt::Alignment StandardTitleBarPrivate::titleLabelAlignment() const
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{
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return m_labelAlignment;
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}
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void StandardTitleBarPrivate::setTitleLabelAlignment(const Qt::Alignment value)
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{
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if (m_labelAlignment == value) {
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return;
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}
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m_labelAlignment = value;
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bool needsInvalidate = false;
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if (m_labelAlignment & Qt::AlignLeft) {
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m_labelLeftStretch->changeSize(kDefaultTitleBarContentsMargin, 0, QSizePolicy::Fixed);
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m_labelRightStretch->changeSize(0, 0, QSizePolicy::Expanding);
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needsInvalidate = true;
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}
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if (m_labelAlignment & Qt::AlignRight) {
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m_labelLeftStretch->changeSize(0, 0, QSizePolicy::Expanding);
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m_labelRightStretch->changeSize(kDefaultTitleBarContentsMargin, 0, QSizePolicy::Fixed);
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needsInvalidate = true;
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}
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if (m_labelAlignment & Qt::AlignHCenter) {
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m_labelLeftStretch->changeSize(0, 0, QSizePolicy::Expanding);
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m_labelRightStretch->changeSize(0, 0, QSizePolicy::Expanding);
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needsInvalidate = true;
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}
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Q_Q(StandardTitleBar);
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if (needsInvalidate) {
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// Tell the layout manager that we have changed the layout item's size
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// manually to let it refresh the layout immediately.
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q->layout()->invalidate();
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}
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Q_EMIT q->titleLabelAlignmentChanged();
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}
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bool StandardTitleBarPrivate::isExtended() const
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{
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return m_extended;
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}
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void StandardTitleBarPrivate::setExtended(const bool value)
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{
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if (m_extended == value) {
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return;
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}
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m_extended = value;
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Q_Q(StandardTitleBar);
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q->setFixedHeight(m_extended ? kDefaultExtendedTitleBarHeight : kDefaultTitleBarHeight);
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Q_EMIT q->extendedChanged();
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}
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bool StandardTitleBarPrivate::isHideWhenClose() const
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{
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return m_hideWhenClose;
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}
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void StandardTitleBarPrivate::setHideWhenClose(const bool value)
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{
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if (m_hideWhenClose == value) {
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return;
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}
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m_hideWhenClose = value;
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Q_Q(StandardTitleBar);
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Q_EMIT q->hideWhenCloseChanged();
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}
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ChromePalette *StandardTitleBarPrivate::chromePalette() const
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{
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return m_chromePalette.data();
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}
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void StandardTitleBarPrivate::paintTitleBar(QPaintEvent *event)
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{
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Q_UNUSED(event);
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Q_Q(StandardTitleBar);
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// This block of code ensures that our widget can still apply the stylesheet correctly.
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// Enabling the "Qt::WA_StyledBackground" attribute can also achieve the same
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// effect, but since it's documented as only for internal uses, we use the
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// public way to do that instead.
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QStyleOption option;
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option.initFrom(q);
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QStylePainter painter(q);
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painter.drawPrimitive(QStyle::PE_Widget, option);
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}
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void StandardTitleBarPrivate::updateMaximizeButton()
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{
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const bool max = m_window->isMaximized();
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m_maximizeButton->setButtonType(max ? SystemButtonType::Restore : SystemButtonType::Maximize);
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m_maximizeButton->setToolTip(max ? tr("Restore") : tr("Maximize"));
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}
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void StandardTitleBarPrivate::updateTitleBarColor()
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{
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const bool active = m_window->isActiveWindow();
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const QColor backgroundColor = (active ?
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m_chromePalette->titleBarActiveBackgroundColor() :
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m_chromePalette->titleBarInactiveBackgroundColor());
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const QColor foregroundColor = (active ?
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m_chromePalette->titleBarActiveForegroundColor() :
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m_chromePalette->titleBarInactiveForegroundColor());
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m_windowTitleLabel->setStyleSheet(kStyleSheetColorTemplate.arg(
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QString::number(foregroundColor.red()), QString::number(foregroundColor.green()),
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QString::number(foregroundColor.blue()), QString::number(foregroundColor.alpha())));
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Q_Q(StandardTitleBar);
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q->setStyleSheet(kStyleSheetBackgroundColorTemplate.arg(
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QString::number(backgroundColor.red()), QString::number(backgroundColor.green()),
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QString::number(backgroundColor.blue()), QString::number(backgroundColor.alpha())));
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}
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void StandardTitleBarPrivate::updateChromeButtonColor()
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{
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const bool active = m_window->isActiveWindow();
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const QColor color = (active ?
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m_chromePalette->titleBarActiveForegroundColor() :
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m_chromePalette->titleBarInactiveForegroundColor());
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const QColor normal = m_chromePalette->chromeButtonNormalColor();
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const QColor hover = m_chromePalette->chromeButtonHoverColor();
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const QColor press = m_chromePalette->chromeButtonPressColor();
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m_minimizeButton->setColor(color);
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m_minimizeButton->setNormalColor(normal);
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m_minimizeButton->setHoverColor(hover);
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m_minimizeButton->setPressColor(press);
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m_maximizeButton->setColor(color);
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m_maximizeButton->setNormalColor(normal);
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m_maximizeButton->setHoverColor(hover);
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m_maximizeButton->setPressColor(press);
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m_closeButton->setColor(color);
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m_closeButton->setNormalColor(normal);
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m_closeButton->setHoverColor(hover);
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m_closeButton->setPressColor(press);
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}
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void StandardTitleBarPrivate::retranslateUi()
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{
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m_minimizeButton->setToolTip(tr("Minimize"));
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m_maximizeButton->setToolTip(m_window->isMaximized() ? tr("Restore") : tr("Maximize"));
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m_closeButton->setToolTip(tr("Close"));
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}
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bool StandardTitleBarPrivate::eventFilter(QObject *object, QEvent *event)
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{
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Q_ASSERT(object);
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Q_ASSERT(event);
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if (!object || !event) {
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return false;
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}
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if (!object->isWidgetType()) {
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return QObject::eventFilter(object, event);
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}
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const auto widget = qobject_cast<QWidget *>(object);
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if (!widget->isWindow() || (widget != m_window)) {
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return QObject::eventFilter(object, event);
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}
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switch (event->type()) {
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case QEvent::WindowStateChange:
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updateMaximizeButton();
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break;
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case QEvent::ActivationChange:
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updateTitleBarColor();
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updateChromeButtonColor();
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break;
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case QEvent::LanguageChange:
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retranslateUi();
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break;
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default:
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break;
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}
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return QObject::eventFilter(object, event);
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}
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void StandardTitleBarPrivate::initialize()
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{
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Q_Q(StandardTitleBar);
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m_window = (q->nativeParentWidget() ? q->nativeParentWidget() : q->window());
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m_chromePalette.reset(new ChromePalette(this));
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connect(m_chromePalette.data(), &ChromePalette::titleBarColorChanged,
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this, &StandardTitleBarPrivate::updateTitleBarColor);
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connect(m_chromePalette.data(), &ChromePalette::chromeButtonColorChanged,
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this, &StandardTitleBarPrivate::updateChromeButtonColor);
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q->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
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q->setFixedHeight(kDefaultTitleBarHeight);
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m_windowTitleLabel.reset(new QLabel(q));
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m_windowTitleLabel->setFrameShape(QFrame::NoFrame);
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QFont windowTitleFont = q->font();
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windowTitleFont.setPointSize(kDefaultTitleBarFontPointSize);
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m_windowTitleLabel->setFont(windowTitleFont);
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m_windowTitleLabel->setText(m_window->windowTitle());
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connect(m_window, &QWidget::windowTitleChanged, m_windowTitleLabel.data(), &QLabel::setText);
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m_minimizeButton.reset(new StandardSystemButton(SystemButtonType::Minimize, q));
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connect(m_minimizeButton.data(), &StandardSystemButton::clicked, m_window, &QWidget::showMinimized);
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m_maximizeButton.reset(new StandardSystemButton(SystemButtonType::Maximize, q));
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updateMaximizeButton();
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connect(m_maximizeButton.data(), &StandardSystemButton::clicked, this, [this](){
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if (m_window->isMaximized()) {
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m_window->showNormal();
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} else {
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m_window->showMaximized();
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}
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});
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m_closeButton.reset(new StandardSystemButton(SystemButtonType::Close, q));
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connect(m_closeButton.data(), &StandardSystemButton::clicked, this, [this](){
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if (m_hideWhenClose) {
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m_window->hide();
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} else {
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m_window->close();
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}
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});
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m_labelLeftStretch = new QSpacerItem(0, 0);
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m_labelRightStretch = new QSpacerItem(0, 0);
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const auto titleLabelLayout = new QHBoxLayout;
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titleLabelLayout->setSpacing(0);
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titleLabelLayout->setContentsMargins(0, 0, 0, 0);
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titleLabelLayout->addSpacerItem(m_labelLeftStretch);
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titleLabelLayout->addWidget(m_windowTitleLabel.data());
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titleLabelLayout->addSpacerItem(m_labelRightStretch);
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// According to the title bar design guidance, the system buttons should always be
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// placed on the top-right corner of the window, so we need the following additional
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// layouts to ensure this.
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const auto systemButtonsInnerLayout = new QHBoxLayout;
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systemButtonsInnerLayout->setSpacing(0);
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systemButtonsInnerLayout->setContentsMargins(0, 0, 0, 0);
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systemButtonsInnerLayout->addWidget(m_minimizeButton.data());
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systemButtonsInnerLayout->addWidget(m_maximizeButton.data());
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systemButtonsInnerLayout->addWidget(m_closeButton.data());
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const auto systemButtonsOuterLayout = new QVBoxLayout;
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systemButtonsOuterLayout->setSpacing(0);
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systemButtonsOuterLayout->setContentsMargins(0, 0, 0, 0);
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systemButtonsOuterLayout->addLayout(systemButtonsInnerLayout);
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systemButtonsOuterLayout->addStretch();
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const auto titleBarLayout = new QHBoxLayout(q);
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titleBarLayout->setSpacing(0);
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titleBarLayout->setContentsMargins(0, 0, 0, 0);
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titleBarLayout->addLayout(titleLabelLayout);
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titleBarLayout->addLayout(systemButtonsOuterLayout);
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q->setLayout(titleBarLayout);
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setTitleLabelAlignment(Qt::AlignLeft | Qt::AlignVCenter);
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retranslateUi();
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updateTitleBarColor();
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updateChromeButtonColor();
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m_window->installEventFilter(this);
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}
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StandardTitleBar::StandardTitleBar(QWidget *parent)
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: QWidget(parent), d_ptr(new StandardTitleBarPrivate(this))
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{
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}
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StandardTitleBar::~StandardTitleBar() = default;
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Qt::Alignment StandardTitleBar::titleLabelAlignment() const
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{
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Q_D(const StandardTitleBar);
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return d->titleLabelAlignment();
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}
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void StandardTitleBar::setTitleLabelAlignment(const Qt::Alignment value)
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{
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Q_D(StandardTitleBar);
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d->setTitleLabelAlignment(value);
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}
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QLabel *StandardTitleBar::titleLabel() const
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{
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Q_D(const StandardTitleBar);
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return d->m_windowTitleLabel.data();
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}
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StandardSystemButton *StandardTitleBar::minimizeButton() const
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{
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Q_D(const StandardTitleBar);
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return d->m_minimizeButton.data();
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}
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StandardSystemButton *StandardTitleBar::maximizeButton() const
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{
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Q_D(const StandardTitleBar);
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return d->m_maximizeButton.data();
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}
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StandardSystemButton *StandardTitleBar::closeButton() const
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{
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Q_D(const StandardTitleBar);
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return d->m_closeButton.data();
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}
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bool StandardTitleBar::isExtended() const
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{
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Q_D(const StandardTitleBar);
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return d->isExtended();
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}
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void StandardTitleBar::setExtended(const bool value)
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{
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Q_D(StandardTitleBar);
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d->setExtended(value);
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}
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bool StandardTitleBar::isHideWhenClose() const
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{
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Q_D(const StandardTitleBar);
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return d->isHideWhenClose();
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}
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void StandardTitleBar::setHideWhenClose(const bool value)
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{
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Q_D(StandardTitleBar);
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d->setHideWhenClose(value);
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}
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ChromePalette *StandardTitleBar::chromePalette() const
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{
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Q_D(const StandardTitleBar);
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return d->chromePalette();
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}
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void StandardTitleBar::paintEvent(QPaintEvent *event)
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{
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Q_D(StandardTitleBar);
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d->paintTitleBar(event);
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}
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FRAMELESSHELPER_END_NAMESPACE
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