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169 lines
3.5 KiB
C++
169 lines
3.5 KiB
C++
/*
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* SPDX-FileCopyrightText: 2014 Hugo Pereira Da Costa <hugo.pereira@free.fr>
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* SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#pragma once
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#include "breezetileset.h"
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#include <KWindowShadow>
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#include <QMap>
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#include <QMargins>
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#include <QObject>
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#include <QPointer>
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#include <QSet>
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namespace Breeze
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{
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//* forward declaration
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class Helper;
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struct ShadowParams {
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ShadowParams() = default;
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ShadowParams(const QPoint &offset, int radius, qreal opacity)
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: offset(offset)
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, radius(radius)
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, opacity(opacity)
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{
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}
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QPoint offset;
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int radius = 0;
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qreal opacity = 0;
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void operator*=(qreal factor)
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{
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offset *= factor;
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radius = qRound(radius * factor);
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}
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};
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struct CompositeShadowParams {
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CompositeShadowParams() = default;
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CompositeShadowParams(const QPoint &offset, const ShadowParams &shadow1, const ShadowParams &shadow2)
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: offset(offset)
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, shadow1(shadow1)
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, shadow2(shadow2)
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{
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}
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bool isNone() const
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{
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return qMax(shadow1.radius, shadow2.radius) == 0;
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}
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QPoint offset;
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ShadowParams shadow1;
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ShadowParams shadow2;
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void operator*=(qreal factor)
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{
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offset *= factor;
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shadow1 *= factor;
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shadow2 *= factor;
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}
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};
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//* handle shadow pixmaps passed to window manager via X property
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class ShadowHelper : public QObject
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{
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Q_OBJECT
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public:
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//* constructor
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ShadowHelper(QObject *, Helper &);
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//* destructor
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~ShadowHelper() override;
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//* shadow params from size enum
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static CompositeShadowParams lookupShadowParams(int shadowSizeEnum);
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//* reset
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void reset();
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//* load config
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void loadConfig();
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//* register widget
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bool registerWidget(QWidget *, bool force = false);
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//* unregister widget
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void unregisterWidget(QWidget *);
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//* event filter
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bool eventFilter(QObject *, QEvent *) override;
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//* shadow tiles
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/** is public because it is also needed for mdi windows */
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TileSet shadowTiles(QWidget *);
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//* return device pixel ratio for the window containing the widget
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static qreal devicePixelRatio(QWidget *);
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protected Q_SLOTS:
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//* unregister widget
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void widgetDeleted(QObject *);
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//* unregister window
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void windowDeleted(QObject *);
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protected:
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//* true if widget is a menu
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bool isMenu(QWidget *) const;
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//* true if widget is a tooltip
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bool isToolTip(QWidget *) const;
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//* dock widget
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bool isDockWidget(QWidget *) const;
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//* toolbar
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bool isToolBar(QWidget *) const;
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//* accept widget
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bool acceptWidget(QWidget *) const;
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// create shared shadow tiles from tileset
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const QVector<KWindowShadowTile::Ptr> &createShadowTiles();
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// create shadow tile from pixmap
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KWindowShadowTile::Ptr createTile(const QPixmap &);
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//* installs shadow on given widget in a platform independent way
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void installShadows(QWidget *);
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//* uninstalls shadow on given widget in a platform independent way
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void uninstallShadows(QWidget *);
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//* gets the shadow margins for the given widget
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QMargins shadowMargins(QWidget *) const;
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private:
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//* helper
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Helper &_helper;
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//* registered widgets
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QSet<QWidget *> _widgets;
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//* managed shadows
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QMap<QWindow *, KWindowShadow *> _shadows;
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//* tileset
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TileSet _shadowTiles;
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//* number of tiles
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enum { numTiles = 8 };
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//* shared shadow tiles
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QVector<KWindowShadowTile::Ptr> _tiles;
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};
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}
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