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breezedecoration.cpp
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/*
* Copyright 2014 Martin Gräßlin <[email protected]>
* Copyright 2014 Hugo Pereira Da Costa <[email protected]>
* Copyright 2018 Vlad Zahorodnii <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "breezedecoration.h"
#include "breeze.h"
#include "breezesettingsprovider.h"
#include "config-breeze.h"
#include "config/breezeconfigwidget.h"
#include "breezebutton.h"
#include "breezesizegrip.h"
#include "breezeboxshadowrenderer.h"
#include <KDecoration3/DecoratedWindow>
#include <KDecoration3/DecorationButtonGroup>
#include <KDecoration3/DecorationSettings>
#include <KDecoration3/DecorationShadow>
#include <KConfigGroup>
#include <KColorUtils>
#include <KSharedConfig>
#include <KPluginFactory>
#include <QPainter>
#include <QTextStream>
#include <QTimer>
#if BREEZE_HAVE_X11
#include <QtGui/private/qtx11extras_p.h>
#endif
#include <cmath>
K_PLUGIN_FACTORY_WITH_JSON(
BreezeDecoFactory,
"sierrabreezeenhanced.json",
registerPlugin<Breeze::Decoration>();
registerPlugin<Breeze::Button>();
// registerPlugin<Breeze::ConfigWidget>();
)
namespace
{
struct ShadowParams
{
ShadowParams()
: offset(QPoint(0, 0)), radius(0), opacity(0) {}
ShadowParams(const QPoint &offset, int radius, qreal opacity)
: offset(offset), radius(radius), opacity(opacity) {}
QPoint offset;
int radius;
qreal opacity;
};
struct CompositeShadowParams
{
CompositeShadowParams() = default;
CompositeShadowParams(
const QPoint &offset,
const ShadowParams &shadow1,
const ShadowParams &shadow2)
: offset(offset), shadow1(shadow1), shadow2(shadow2) {}
bool isNone() const
{
return qMax(shadow1.radius, shadow2.radius) == 0;
}
QPoint offset;
ShadowParams shadow1;
ShadowParams shadow2;
};
const CompositeShadowParams s_shadowParams[] = {
// None
CompositeShadowParams(),
// Small
CompositeShadowParams(
QPoint(0, 4),
ShadowParams(QPoint(0, 0), 16, 1),
ShadowParams(QPoint(0, -2), 8, 0.4)),
// Medium
CompositeShadowParams(
QPoint(0, 8),
ShadowParams(QPoint(0, 0), 32, 0.9),
ShadowParams(QPoint(0, -4), 16, 0.3)),
// Large
CompositeShadowParams(
QPoint(0, 12),
ShadowParams(QPoint(0, 0), 48, 0.8),
ShadowParams(QPoint(0, -6), 24, 0.2)),
// Very large
CompositeShadowParams(
QPoint(0, 16),
ShadowParams(QPoint(0, 0), 64, 0.7),
ShadowParams(QPoint(0, -8), 32, 0.1))};
inline CompositeShadowParams lookupShadowParams(int size)
{
switch (size)
{
case Breeze::InternalSettings::ShadowNone:
return s_shadowParams[0];
case Breeze::InternalSettings::ShadowSmall:
return s_shadowParams[1];
case Breeze::InternalSettings::ShadowMedium:
return s_shadowParams[2];
case Breeze::InternalSettings::ShadowLarge:
return s_shadowParams[3];
case Breeze::InternalSettings::ShadowVeryLarge:
return s_shadowParams[4];
default:
// Fallback to the Large size.
return s_shadowParams[3];
}
}
inline CompositeShadowParams lookupShadowParamsInactiveWindows(int size)
{
switch (size)
{
case Breeze::InternalSettings::ShadowNoneInactiveWindows:
return s_shadowParams[0];
case Breeze::InternalSettings::ShadowSmallInactiveWindows:
return s_shadowParams[1];
case Breeze::InternalSettings::ShadowMediumInactiveWindows:
return s_shadowParams[2];
case Breeze::InternalSettings::ShadowLargeInactiveWindows:
return s_shadowParams[3];
case Breeze::InternalSettings::ShadowVeryLargeInactiveWindows:
return s_shadowParams[4];
default:
// Fallback to the Large size.
return s_shadowParams[3];
}
}
}
namespace Breeze
{
using KDecoration3::ColorGroup;
using KDecoration3::ColorRole;
//________________________________________________________________
static int g_sDecoCount = 0;
static int g_shadowSizeEnum = InternalSettings::ShadowLarge;
static int g_shadowStrength = 255;
static QColor g_shadowColor = Qt::black;
static std::shared_ptr<KDecoration3::DecorationShadow> g_sShadow;
static bool g_specificShadowsInactiveWindows = false;
static int g_shadowSizeEnumInactiveWindows = InternalSettings::ShadowLarge;
static int g_shadowStrengthInactiveWindows = 255;
static QColor g_shadowColorInactiveWindows = Qt::black;
//________________________________________________________________
Decoration::Decoration(QObject *parent, const QVariantList &args)
: KDecoration3::Decoration(parent, args), m_animation(new QVariantAnimation(this))
{
g_sDecoCount++;
}
//________________________________________________________________
Decoration::~Decoration()
{
g_sDecoCount--;
if (g_sDecoCount == 0)
{
// last deco destroyed, clean up shadow
g_sShadow.reset();
}
deleteSizeGrip();
}
//________________________________________________________________
void Decoration::setOpacity(qreal value)
{
if (m_opacity == value)
return;
m_opacity = value;
update();
if (m_sizeGrip)
m_sizeGrip->update();
}
//________________________________________________________________
QColor Decoration::titleBarColor() const
{
QColor titleBarColor(this->rawTitleBarColor());
QColor outlineColor(this->outlineColor());
auto c(window());
if (drawBackgroundGradient()) // && c->isActive() )
{
if (c->isActive())
{
if (qGray(titleBarColor.rgb()) > 69)
{
if (outlineColor.isValid())
titleBarColor = titleBarColor.darker(115);
}
else
{
if (outlineColor.isValid())
titleBarColor = titleBarColor.lighter(115);
}
}
else
{
if (qGray(titleBarColor.rgb()) > 69)
{
if (outlineColor.isValid())
titleBarColor = titleBarColor.darker(110);
}
else
{
if (outlineColor.isValid())
titleBarColor = titleBarColor.lighter(110);
}
}
}
else if (outlineColor.isValid() && c->isActive())
{
if (qGray(titleBarColor.rgb()) > 69)
titleBarColor = titleBarColor.darker(115);
else
titleBarColor = titleBarColor.lighter(115);
}
else if (outlineColor.isValid())
{
if (qGray(titleBarColor.rgb()) > 69)
titleBarColor = titleBarColor.darker(110);
else
titleBarColor = titleBarColor.lighter(110);
}
return titleBarColor;
}
//________________________________________________________________
QColor Decoration::outlineColor() const
{
if (!m_internalSettings->drawTitleBarSeparator())
return QColor();
QColor titleBarColor(rawTitleBarColor());
uint r = qRed(titleBarColor.rgb());
uint g = qGreen(titleBarColor.rgb());
uint b = qBlue(titleBarColor.rgb());
qreal colorConditional = 0.299 * static_cast<qreal>(r) + 0.587 * static_cast<qreal>(g) + 0.114 * static_cast<qreal>(b);
QColor outlineColor;
if (colorConditional > 69) // 255 -186
outlineColor = titleBarColor.darker(140);
else
outlineColor = titleBarColor.lighter(140);
return outlineColor;
}
//________________________________________________________________
QColor Decoration::rawTitleBarColor() const
{
auto c = window();
QColor titleBarColor;
if (!matchColorForTitleBar())
{
if (m_animation->state() == QAbstractAnimation::Running)
{
titleBarColor = KColorUtils::mix(
c->color(ColorGroup::Inactive, ColorRole::TitleBar),
c->color(ColorGroup::Active, ColorRole::TitleBar),
m_opacity);
}
else
titleBarColor = c->color(c->isActive() ? ColorGroup::Active : ColorGroup::Inactive, ColorRole::TitleBar);
}
else
{
titleBarColor = c->palette().color(QPalette::Window);
}
titleBarColor.setAlpha(titleBarAlpha());
return titleBarColor;
}
//________________________________________________________________
QColor Decoration::fontColor() const
{
auto c = window();
if (systemForegroundColor())
{
if (m_animation->state() == QAbstractAnimation::Running)
{
return KColorUtils::mix(
c->color(ColorGroup::Inactive, ColorRole::Foreground),
c->color(ColorGroup::Active, ColorRole::Foreground),
m_opacity);
}
else
{
return c->color(c->isActive() ? ColorGroup::Active : ColorGroup::Inactive, ColorRole::Foreground);
}
}
else
{
QColor darkTextColor(!c->isActive() && matchColorForTitleBar() ? QColor(81, 102, 107) : QColor(34, 45, 50));
QColor lightTextColor(!c->isActive() && matchColorForTitleBar() ? QColor(192, 193, 194) : QColor(250, 251, 252));
QColor titleBarColor = this->titleBarColor();
uint r = qRed(titleBarColor.rgb());
uint g = qGreen(titleBarColor.rgb());
uint b = qBlue(titleBarColor.rgb());
// modified from https://stackoverflow.com/questions/3942878/how-to-decide-font-color-in-white-or-black-depending-on-background-color
// qreal titleBarLuminance = (0.2126 * static_cast<qreal>(r) + 0.7152 * static_cast<qreal>(g) + 0.0722 * static_cast<qreal>(b)) / 255.;
// if ( titleBarLuminance > sqrt(1.05 * 0.05) - 0.05 )
qreal colorConditional = 0.299 * static_cast<qreal>(r) + 0.587 * static_cast<qreal>(g) + 0.114 * static_cast<qreal>(b);
if (colorConditional > 186 || g > 186) // ( colorConditional > 186 ) // if ( colorConditional > 150 )
return darkTextColor;
else
return lightTextColor;
}
}
//________________________________________________________________
void Decoration::setButtonHovered(bool value)
{
if (m_buttonHovered == value)
{
return;
}
m_buttonHovered = value;
emit buttonHoveredChanged();
}
//________________________________________________________________
void Decoration::hoverMoveEvent(QHoverEvent *event)
{
if (objectName() != "applet-window-buttons")
{
const bool groupContains = m_leftButtons->geometry().contains(event->position()) || m_rightButtons->geometry().contains(event->position());
setButtonHovered(groupContains);
}
KDecoration3::Decoration::hoverMoveEvent(event);
}
//________________________________________________________________
bool Decoration::init()
{
auto c = window();
// active state change animation
// It is important start and end value are of the same type, hence 0.0 and not just 0
m_animation->setStartValue(0.0);
m_animation->setEndValue(1.0);
// Linear to have the same easing as Breeze animations
m_animation->setEasingCurve(QEasingCurve::Linear);
connect(m_animation, &QVariantAnimation::valueChanged, this, [this](const QVariant &value)
{ setOpacity(value.toReal()); });
reconfigure();
updateTitleBar();
auto s = settings();
connect(s.get(), &KDecoration3::DecorationSettings::borderSizeChanged, this, &Decoration::recalculateBorders);
connect(s.get(), &KDecoration3::DecorationSettings::borderSizeChanged, this, &Decoration::updateBlur); // for the case when a border with transparency
// a change in font might cause the borders to change
connect(s.get(), &KDecoration3::DecorationSettings::fontChanged, this, &Decoration::recalculateBorders); // recalculateBorders();
connect(s.get(), &KDecoration3::DecorationSettings::fontChanged, this, &Decoration::updateBlur); // for the case when a border with transparency
connect(s.get(), &KDecoration3::DecorationSettings::spacingChanged, this, &Decoration::recalculateBorders);
connect(s.get(), &KDecoration3::DecorationSettings::spacingChanged, this, &Decoration::updateBlur); // for the case when a border with transparency
// buttons
connect(s.get(), &KDecoration3::DecorationSettings::spacingChanged, this, &Decoration::updateButtonsGeometryDelayed);
connect(s.get(), &KDecoration3::DecorationSettings::decorationButtonsLeftChanged, this, &Decoration::updateButtonsGeometryDelayed);
connect(s.get(), &KDecoration3::DecorationSettings::decorationButtonsRightChanged, this, &Decoration::updateButtonsGeometryDelayed);
// full reconfiguration
connect(s.get(), &KDecoration3::DecorationSettings::reconfigured, this, &Decoration::reconfigure);
connect(s.get(), &KDecoration3::DecorationSettings::reconfigured, SettingsProvider::self(), &SettingsProvider::reconfigure, Qt::UniqueConnection);
connect(s.get(), &KDecoration3::DecorationSettings::reconfigured, this, &Decoration::updateButtonsGeometryDelayed);
connect(c, &KDecoration3::DecoratedWindow::adjacentScreenEdgesChanged, this, &Decoration::recalculateBorders);
connect(c, &KDecoration3::DecoratedWindow::maximizedHorizontallyChanged, this, &Decoration::recalculateBorders);
connect(c, &KDecoration3::DecoratedWindow::maximizedVerticallyChanged, this, &Decoration::recalculateBorders);
connect(c, &KDecoration3::DecoratedWindow::shadedChanged, this, &Decoration::recalculateBorders);
connect(c, &KDecoration3::DecoratedWindow::captionChanged, this,
[this]()
{
// update the caption area
update(titleBar());
});
connect(c, &KDecoration3::DecoratedWindow::activeChanged, this, &Decoration::updateAnimationState);
connect(c, &KDecoration3::DecoratedWindow::activeChanged, this, &Decoration::createShadow);
connect(c, &KDecoration3::DecoratedWindow::activeChanged, this, &Decoration::updateBlur);
connect(c, &KDecoration3::DecoratedWindow::widthChanged, this, &Decoration::updateTitleBar);
connect(c, &KDecoration3::DecoratedWindow::maximizedChanged, this, &Decoration::updateTitleBar);
// connect(c, &KDecoration3::DecoratedWindow::maximizedChanged, this, &Decoration::setOpaque);
connect(c, &KDecoration3::DecoratedWindow::sizeChanged, this, &Decoration::updateBlur);
connect(c, &KDecoration3::DecoratedWindow::widthChanged, this, &Decoration::updateButtonsGeometry);
connect(c, &KDecoration3::DecoratedWindow::maximizedChanged, this, &Decoration::updateButtonsGeometry);
connect(c, &KDecoration3::DecoratedWindow::adjacentScreenEdgesChanged, this, &Decoration::updateButtonsGeometry);
connect(c, &KDecoration3::DecoratedWindow::shadedChanged, this, &Decoration::updateButtonsGeometry);
createButtons();
createShadow();
return true;
}
//________________________________________________________________
void Decoration::updateTitleBar()
{
auto s = settings();
auto c = window();
const bool maximized = isMaximized();
const int width = maximized ? c->width() : c->width() - 2 * s->largeSpacing() * Metrics::TitleBar_SideMargin;
const int height = maximized ? borderTop() : borderTop() - s->smallSpacing() * Metrics::TitleBar_TopMargin;
const int x = maximized ? 0 : s->largeSpacing() * Metrics::TitleBar_SideMargin;
const int y = maximized ? 0 : s->smallSpacing() * Metrics::TitleBar_TopMargin;
setTitleBar(QRect(x, y, width, height));
}
//________________________________________________________________
void Decoration::updateAnimationState()
{
if (m_internalSettings->animationsEnabled())
{
auto c = window();
m_animation->setDirection(c->isActive() ? QAbstractAnimation::Forward : QAbstractAnimation::Backward);
if (m_animation->state() != QAbstractAnimation::Running)
m_animation->start();
}
else
{
update();
}
}
//________________________________________________________________
void Decoration::updateShadow()
{
auto c = window();
if (!g_specificShadowsInactiveWindows || c->isActive())
updateActiveShadow();
else
updateInactiveShadow();
}
//________________________________________________________________
void Decoration::updateActiveShadow()
{
CompositeShadowParams params;
params = lookupShadowParams(g_shadowSizeEnum);
if (params.isNone())
{
g_sShadow.reset();
setShadow(g_sShadow);
return;
}
auto withOpacity = [](const QColor &color, qreal opacity) -> QColor
{
QColor c(color);
c.setAlphaF(opacity);
return c;
};
const auto s = settings();
const QSize boxSize = BoxShadowRenderer::calculateMinimumBoxSize(2 * s->smallSpacing() * params.shadow1.radius)
.expandedTo(BoxShadowRenderer::calculateMinimumBoxSize(2 * s->smallSpacing() * params.shadow2.radius));
BoxShadowRenderer shadowRenderer;
shadowRenderer.setBorderRadius(0.5 * s->smallSpacing() * (m_internalSettings->cornerRadius() + 0.5));
shadowRenderer.setBoxSize(boxSize);
const qreal strength = static_cast<qreal>(g_shadowStrength) / 255.0;
shadowRenderer.addShadow(params.shadow1.offset, params.shadow1.radius,
withOpacity(g_shadowColor, params.shadow1.opacity * strength));
shadowRenderer.addShadow(params.shadow2.offset, params.shadow2.radius,
withOpacity(g_shadowColor, params.shadow2.opacity * strength));
QImage shadowTexture = shadowRenderer.render();
QPainter painter(&shadowTexture);
painter.setRenderHint(QPainter::Antialiasing);
const QRect outerRect = shadowTexture.rect();
QRect boxRect(QPoint(0, 0), boxSize);
boxRect.moveCenter(outerRect.center());
// Mask out inner rect.
const QMargins padding = QMargins(
boxRect.left() - outerRect.left() - Metrics::Shadow_Overlap - params.offset.x(),
boxRect.top() - outerRect.top() - Metrics::Shadow_Overlap - params.offset.y(),
outerRect.right() - boxRect.right() - Metrics::Shadow_Overlap + params.offset.x(),
outerRect.bottom() - boxRect.bottom() - Metrics::Shadow_Overlap + params.offset.y());
const QRect innerRect = outerRect - padding;
painter.setPen(Qt::NoPen);
painter.setBrush(Qt::black);
painter.setCompositionMode(QPainter::CompositionMode_DestinationOut);
painter.drawRoundedRect(
innerRect,
0.5 * s->smallSpacing() * (m_internalSettings->cornerRadius() + 0.5),
0.5 * s->smallSpacing() * (m_internalSettings->cornerRadius() + 0.5));
// Draw outline.
// painter.setPen(withOpacity(g_shadowColor, 0.2 * strength));
// painter.setBrush(Qt::NoBrush);
// painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
// painter.drawRoundedRect(
// innerRect,
// 0.5*s->smallSpacing()*(m_internalSettings->cornerRadius() - 0.5),
// 0.5*s->smallSpacing()*(m_internalSettings->cornerRadius() - 0.5));
painter.end();
g_sShadow = std::make_shared<KDecoration3::DecorationShadow>();
g_sShadow->setPadding(padding);
g_sShadow->setInnerShadowRect(QRect(outerRect.center(), QSize(1, 1)));
g_sShadow->setShadow(shadowTexture);
setShadow(g_sShadow);
}
//________________________________________________________________
void Decoration::updateInactiveShadow()
{
CompositeShadowParams params;
params = lookupShadowParamsInactiveWindows(g_shadowSizeEnumInactiveWindows);
if (params.isNone())
{
g_sShadow.reset();
setShadow(g_sShadow);
return;
}
auto withOpacity = [](const QColor &color, qreal opacity) -> QColor
{
QColor c(color);
c.setAlphaF(opacity);
return c;
};
const auto s = settings();
const QSize boxSize = BoxShadowRenderer::calculateMinimumBoxSize(2 * s->smallSpacing() * params.shadow1.radius)
.expandedTo(BoxShadowRenderer::calculateMinimumBoxSize(2 * s->smallSpacing() * params.shadow2.radius));
BoxShadowRenderer shadowRenderer;
shadowRenderer.setBorderRadius(0.5 * s->smallSpacing() * (m_internalSettings->cornerRadius() + 0.5));
shadowRenderer.setBoxSize(boxSize);
const qreal strength = static_cast<qreal>(g_shadowStrengthInactiveWindows) / 255.0;
shadowRenderer.addShadow(params.shadow1.offset, params.shadow1.radius,
withOpacity(g_shadowColorInactiveWindows, params.shadow1.opacity * strength));
shadowRenderer.addShadow(params.shadow2.offset, params.shadow2.radius,
withOpacity(g_shadowColorInactiveWindows, params.shadow2.opacity * strength));
QImage shadowTexture = shadowRenderer.render();
QPainter painter(&shadowTexture);
painter.setRenderHint(QPainter::Antialiasing);
const QRect outerRect = shadowTexture.rect();
QRect boxRect(QPoint(0, 0), boxSize);
boxRect.moveCenter(outerRect.center());
// Mask out inner rect.
const QMargins padding = QMargins(
boxRect.left() - outerRect.left() - Metrics::Shadow_Overlap - params.offset.x(),
boxRect.top() - outerRect.top() - Metrics::Shadow_Overlap - params.offset.y(),
outerRect.right() - boxRect.right() - Metrics::Shadow_Overlap + params.offset.x(),
outerRect.bottom() - boxRect.bottom() - Metrics::Shadow_Overlap + params.offset.y());
const QRect innerRect = outerRect - padding;
painter.setPen(Qt::NoPen);
painter.setBrush(Qt::black);
painter.setCompositionMode(QPainter::CompositionMode_DestinationOut);
painter.drawRoundedRect(
innerRect,
0.5 * s->smallSpacing() * (m_internalSettings->cornerRadius() + 0.5),
0.5 * s->smallSpacing() * (m_internalSettings->cornerRadius() + 0.5));
// Draw outline.
// painter.setPen(withOpacity(g_shadowColorInactiveWindows, 0.2 * strength));
// painter.setBrush(Qt::NoBrush);
// painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
// painter.drawRoundedRect(
// innerRect,
// 0.5*s->smallSpacing()*(m_internalSettings->cornerRadius() - 0.5),
// 0.5*s->smallSpacing()*(m_internalSettings->cornerRadius() - 0.5));
painter.end();
g_sShadow = std::make_shared<KDecoration3::DecorationShadow>();
g_sShadow->setPadding(padding);
g_sShadow->setInnerShadowRect(QRect(outerRect.center(), QSize(1, 1)));
g_sShadow->setShadow(shadowTexture);
setShadow(g_sShadow);
}
//________________________________________________________________
void Decoration::updateSizeGripVisibility()
{
auto c = window();
if (m_sizeGrip)
{
m_sizeGrip->setVisible(c->isResizeable() && !isMaximized() && !c->isShaded());
}
}
//________________________________________________________________
int Decoration::borderSize(bool bottom) const
{
const int baseSize = settings()->smallSpacing();
if (m_internalSettings && (m_internalSettings->mask() & BorderSize))
{
switch (m_internalSettings->borderSize())
{
case InternalSettings::BorderNone:
return 0;
case InternalSettings::BorderNoSides:
return bottom ? qMax(4, baseSize) : 0;
default:
case InternalSettings::BorderTiny:
return 1;
case InternalSettings::BorderNormal:
return bottom ? qMax(4, baseSize) : baseSize;
case InternalSettings::BorderLarge:
return baseSize * 2;
case InternalSettings::BorderVeryLarge:
return baseSize * 3;
case InternalSettings::BorderHuge:
return baseSize * 4;
case InternalSettings::BorderVeryHuge:
return baseSize * 5;
case InternalSettings::BorderOversized:
return baseSize * 6;
}
}
else
{
switch (settings()->borderSize())
{
case KDecoration3::BorderSize::None:
return 0;
case KDecoration3::BorderSize::NoSides:
return bottom ? qMax(4, baseSize) : 0;
default:
case KDecoration3::BorderSize::Tiny:
return 1;
case KDecoration3::BorderSize::Normal:
return bottom ? qMax(4, baseSize) : baseSize;
case KDecoration3::BorderSize::Large:
return baseSize * 2;
case KDecoration3::BorderSize::VeryLarge:
return baseSize * 3;
case KDecoration3::BorderSize::Huge:
return baseSize * 4;
case KDecoration3::BorderSize::VeryHuge:
return baseSize * 5;
case KDecoration3::BorderSize::Oversized:
return baseSize * 6;
}
}
}
//________________________________________________________________
void Decoration::reconfigure()
{
m_internalSettings = SettingsProvider::self()->internalSettings(this);
// animation
m_animation->setDuration(m_internalSettings->animationsDuration());
// borders
recalculateBorders();
updateBlur();
// shadow
createShadow();
// size grip
if (borderSize() <= 1 && m_internalSettings->drawSizeGrip())
createSizeGrip();
else
deleteSizeGrip();
}
//________________________________________________________________
void Decoration::recalculateBorders()
{
auto c = window();
auto s = settings();
// left, right and bottom borders
const int left = isLeftEdge() ? 0 : borderSize();
const int right = isRightEdge() ? 0 : borderSize();
const int bottom = (c->isShaded() || isBottomEdge()) ? 0 : borderSize(true);
int top = 0;
if (hideTitleBar())
top = bottom;
else
{
QFontMetrics fm(s->font());
top += qMax(fm.height(), buttonHeight());
// padding below
// extra pixel is used for the active window outline
const int baseSize = s->smallSpacing();
top += baseSize * Metrics::TitleBar_BottomMargin + m_internalSettings->buttonPadding(); // + 1;
// padding above
top += baseSize * TitleBar_TopMargin + m_internalSettings->buttonPadding();
}
setBorders(QMargins(left, top, right, bottom));
// extended sizes
const int extSize = s->largeSpacing();
int extHSides = 0;
int extVSides = 0;
if (borderSize() <= 1)
{
if (!isMaximizedHorizontally())
extHSides = extSize;
if (!isMaximizedVertically())
extVSides = extSize;
}
setResizeOnlyBorders(QMargins(extHSides, extVSides, extHSides, extVSides));
}
//________________________________________________________________
void Decoration::createButtons()
{
m_leftButtons = new KDecoration3::DecorationButtonGroup(KDecoration3::DecorationButtonGroup::Position::Left, this, &Button::create);
m_rightButtons = new KDecoration3::DecorationButtonGroup(KDecoration3::DecorationButtonGroup::Position::Right, this, &Button::create);
updateButtonsGeometryDelayed(); // Calling delayed function because borderTop() is signaling 0 initially.
}
void Decoration::updateBlur()
{
// access client
auto c = window();
Q_ASSERT(c);
// disable blur if the titlebar is opaque
if ((m_internalSettings->opaqueTitleBar() && c->isMaximized()) || (m_opacity == 100 && this->titleBarColor().alpha() == 255))
{ // opaque titlebar colours
setBlurRegion(QRegion());
}
else
{ // transparent titlebar colours
calculateWindowAndTitleBarShapes(true); // refreshes m_windowPath
setBlurRegion(QRegion(m_windowPath->toFillPolygon().toPolygon()));
}
}
void Decoration::calculateWindowAndTitleBarShapes(const bool windowShapeOnly)
{
auto c = window();
Q_ASSERT(c);
auto s = settings();
if (!windowShapeOnly || c->isShaded())
{
// set titleBar geometry and path
m_titleRect = QRect(QPoint(0, 0), QSize(size().width(), borderTop()));
m_titleBarPath->clear(); // clear the path for subsequent calls to this function
if (isMaximized() || !s->isAlphaChannelSupported())
{
m_titleBarPath->addRect(m_titleRect);
}
else if (c->isShaded())
{
m_titleBarPath->addRoundedRect(m_titleRect, 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius());
}
else
{
QPainterPath clipRect;
clipRect.addRect(m_titleRect);
// the rect is made a little bit larger to be able to clip away the rounded corners at the bottom and sides
m_titleBarPath->addRoundedRect(m_titleRect.adjusted(
isLeftEdge() ? -0.5 * s->smallSpacing() * m_internalSettings->cornerRadius() : 0,
isTopEdge() ? -0.5 * s->smallSpacing() * m_internalSettings->cornerRadius() : 0,
isRightEdge() ? 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius() : 0,
0.5 * s->smallSpacing() * m_internalSettings->cornerRadius()),
0.5 * s->smallSpacing() * m_internalSettings->cornerRadius(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius());
*m_titleBarPath = m_titleBarPath->intersected(clipRect);
}
}
// set windowPath
m_windowPath->clear(); // clear the path for subsequent calls to this function
if (!c->isShaded())
{
if (s->isAlphaChannelSupported() && !isMaximized())
m_windowPath->addRoundedRect(rect(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius());
else
m_windowPath->addRect(rect());
}
else
{
*m_windowPath = *m_titleBarPath;
}
}
//________________________________________________________________
void Decoration::updateButtonsGeometryDelayed()
{
QTimer::singleShot(0, this, &Decoration::updateButtonsGeometry);
}
//________________________________________________________________
void Decoration::updateButtonsGeometry()
{
const auto s = settings();
// adjust button position
const int bWidth = buttonHeight();
const int bHeight = bWidth + (isTopEdge() ? s->smallSpacing() * Metrics::TitleBar_TopMargin : 0);
const int verticalOffset = (isTopEdge() ? s->smallSpacing() * Metrics::TitleBar_TopMargin : 0) + (captionHeight() - buttonHeight()) / 2;
foreach (const QPointer<KDecoration3::DecorationButton> &button, m_leftButtons->buttons() + m_rightButtons->buttons())
{
button->setGeometry(QRectF(QPoint(0, 0), QSizeF(bWidth, bHeight)));
static_cast<Button *>(button.data())->setIconSize(QSize(bWidth, bWidth));
}
// padding
const double vPadding = isTopEdge() ? 0 : s->smallSpacing() * Metrics::TitleBar_TopMargin;
const double hPadding = s->smallSpacing() * Metrics::TitleBar_SideMargin;
const double hMargin = 0.5 * s->smallSpacing() * m_internalSettings->buttonPadding() + 0.5 * s->smallSpacing() * m_internalSettings->hOffset();
// left buttons
if (!m_leftButtons->buttons().isEmpty())
{
// spacing (use our own spacing instead of s->smallSpacing()*Metrics::TitleBar_ButtonSpacing)
m_leftButtons->setSpacing(0.5 * s->smallSpacing() * m_internalSettings->buttonSpacing());
if (isLeftEdge())
{
// add offsets on the side buttons, to preserve padding, but satisfy Fitts law
auto button = static_cast<Button *>(m_leftButtons->buttons().front());
button->setGeometry(QRectF(QPoint(0, 0), QSizeF(bWidth + hPadding, bHeight)));
button->setFlag(Button::FlagFirstInList);
m_leftButtons->setPos(QPointF(hMargin, verticalOffset + vPadding));
}
else
m_leftButtons->setPos(QPointF(hMargin + borderLeft(), verticalOffset + vPadding));
}
// right buttons
if (!m_rightButtons->buttons().isEmpty())
{
// spacing (use our own spacing instead of s->smallSpacing()*Metrics::TitleBar_ButtonSpacing)
m_rightButtons->setSpacing(0.5 * s->smallSpacing() * m_internalSettings->buttonSpacing());
if (isRightEdge())
{
auto button = static_cast<Button *>(m_rightButtons->buttons().back());
button->setGeometry(QRectF(QPoint(0, 0), QSizeF(bWidth + hPadding, bHeight)));
button->setFlag(Button::FlagLastInList);
m_rightButtons->setPos(QPointF(size().width() - m_rightButtons->geometry().width() - hMargin, verticalOffset + vPadding));
}
else
m_rightButtons->setPos(QPointF(size().width() - m_rightButtons->geometry().width() - hMargin - borderRight(), verticalOffset + vPadding));
}
update();
}
//________________________________________________________________
void Decoration::paint(QPainter *painter, const QRectF &repaintRegion)
{
// TODO: optimize based on repaintRegion
auto c = window();
auto s = settings();
QColor titleBarColor = this->titleBarColor();
// paint background
if (!c->isShaded())
{
painter->fillRect(rect(), Qt::transparent);
painter->save();
painter->setRenderHint(QPainter::Antialiasing);
painter->setBrush(titleBarColor);
// clip away the top part
if (!hideTitleBar())
painter->setClipRect(0, borderTop(), size().width(), size().height() - borderTop(), Qt::IntersectClip);
// When no borders set, outline will be drawn by shader
QPen border_pen1;
if (borderSize() == 0)
border_pen1 = QPen(titleBarColor);
else
border_pen1 = QPen(titleBarColor.darker(125));
painter->setPen(border_pen1);
if (s->isAlphaChannelSupported())
{
painter->drawRoundedRect(rect(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius());
}
else
{
painter->drawRect(rect());
}
painter->restore();
}
paintTitleBar(painter, repaintRegion);
if (hasBorders())
{
painter->save();
// painter->setRenderHint(QPainter::Antialiasing, false);
painter->setBrush(Qt::NoBrush);
QPen border_pen1(titleBarColor.darker(125));
painter->setPen(border_pen1);
if (s->isAlphaChannelSupported())
painter->drawRoundedRect(rect(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius(), 0.5 * s->smallSpacing() * m_internalSettings->cornerRadius());
else
painter->drawRect(rect());
painter->restore();
}
}
//________________________________________________________________
void Decoration::paintTitleBar(QPainter *painter, const QRectF &repaintRegion)
{
const QRectF titleRect(QPoint(0, 0), QSize(size().width(), borderTop()));
if (!titleRect.intersects(repaintRegion))
return;
auto c = window();
QColor outlineColor(this->outlineColor());
QColor titleBarColor = this->titleBarColor();