076b8bc14c
The text caret tracking feature allows to keep the text caret inside the zoomed area. It can be especially useful when the zoomed area is smaller than the text editor. BUG: 362189
137 lines
4.3 KiB
C++
137 lines
4.3 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2010 Sebastian Sauer <sebsauer@kdab.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_ZOOM_H
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#define KWIN_ZOOM_H
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#include <config-kwin.h>
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#include <kwineffects.h>
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#include <QTime>
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#include <QTimeLine>
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namespace KWin
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{
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#if HAVE_ACCESSIBILITY
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class ZoomAccessibilityIntegration;
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#endif
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class GLTexture;
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class XRenderPicture;
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class ZoomEffect
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: public Effect
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{
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Q_OBJECT
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Q_PROPERTY(qreal zoomFactor READ configuredZoomFactor)
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Q_PROPERTY(int mousePointer READ configuredMousePointer)
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Q_PROPERTY(int mouseTracking READ configuredMouseTracking)
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Q_PROPERTY(bool focusTrackingEnabled READ isFocusTrackingEnabled)
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Q_PROPERTY(bool textCaretTrackingEnabled READ isTextCaretTrackingEnabled)
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Q_PROPERTY(int focusDelay READ configuredFocusDelay)
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Q_PROPERTY(qreal moveFactor READ configuredMoveFactor)
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Q_PROPERTY(qreal targetZoom READ targetZoom)
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public:
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ZoomEffect();
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~ZoomEffect() override;
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void reconfigure(ReconfigureFlags flags) override;
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void prePaintScreen(ScreenPrePaintData& data, int time) override;
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void paintScreen(int mask, const QRegion ®ion, ScreenPaintData& data) override;
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void postPaintScreen() override;
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bool isActive() const override;
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// for properties
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qreal configuredZoomFactor() const {
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return zoomFactor;
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}
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int configuredMousePointer() const {
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return mousePointer;
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}
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int configuredMouseTracking() const {
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return mouseTracking;
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}
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bool isFocusTrackingEnabled() const;
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bool isTextCaretTrackingEnabled() const;
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int configuredFocusDelay() const {
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return focusDelay;
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}
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qreal configuredMoveFactor() const {
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return moveFactor;
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}
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qreal targetZoom() const {
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return target_zoom;
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}
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private Q_SLOTS:
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inline void zoomIn() { zoomIn(-1.0); };
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void zoomIn(double to);
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void zoomOut();
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void actualSize();
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void moveZoomLeft();
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void moveZoomRight();
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void moveZoomUp();
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void moveZoomDown();
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void moveMouseToFocus();
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void moveMouseToCenter();
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void timelineFrameChanged(int frame);
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void moveFocus(const QPoint &point);
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void slotMouseChanged(const QPoint& pos, const QPoint& old,
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Qt::MouseButtons buttons, Qt::MouseButtons oldbuttons,
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Qt::KeyboardModifiers modifiers, Qt::KeyboardModifiers oldmodifiers);
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void recreateTexture();
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private:
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void showCursor();
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void hideCursor();
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void moveZoom(int x, int y);
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private:
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#if HAVE_ACCESSIBILITY
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ZoomAccessibilityIntegration *m_accessibilityIntegration = nullptr;
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#endif
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double zoom;
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double target_zoom;
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double source_zoom;
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bool polling; // Mouse polling
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double zoomFactor;
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enum MouseTrackingType { MouseTrackingProportional = 0, MouseTrackingCentred = 1, MouseTrackingPush = 2, MouseTrackingDisabled = 3 };
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MouseTrackingType mouseTracking;
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enum MousePointerType { MousePointerScale = 0, MousePointerKeep = 1, MousePointerHide = 2 };
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MousePointerType mousePointer;
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int focusDelay;
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QPoint cursorPoint;
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QPoint cursorHotSpot;
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QPoint focusPoint;
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QPoint prevPoint;
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QTime lastMouseEvent;
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QTime lastFocusEvent;
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QScopedPointer<GLTexture> texture;
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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QScopedPointer<XRenderPicture> xrenderPicture;
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#endif
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int imageWidth;
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int imageHeight;
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bool isMouseHidden;
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QTimeLine timeline;
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int xMove, yMove;
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double moveFactor;
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};
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} // namespace
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#endif
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