Differential D15272 Diff 41475 effects/trackmouse/trackmouse.cpp

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effects/trackmouse/trackmouse.cpp

1/******************************************************************** 1​/********************************************************************
2 KWin - the KDE window manager 2​ KWin - the KDE window manager
3 This file is part of the KDE project. 3​ This file is part of the KDE project.
4 4​
5Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org> 5​Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
6Copyright (C) 2010 Jorge Mata <matamax123@gmail.com> 6​Copyright (C) 2010 Jorge Mata <matamax123@gmail.com>
7​Copyright (C) 2018 Vlad Zagorodniy <vladzzag@gmail.com>
7 8​
8This program is free software; you can redistribute it and/or modify 9​This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by 10​it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or 11​the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version. 12​(at your option) any later version.
12 13​
13This program is distributed in the hope that it will be useful, 14​This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of 15​but WITHOUT ANY WARRANTY; without even the implied warranty of
Show All 22 Lines
37#include <KLocalizedString> 38​#include <KLocalizedString>
38 39​
39#include <math.h> 40​#include <math.h>
40 41​
41namespace KWin 42​namespace KWin
42{ 43​{
43 44​
44TrackMouseEffect::TrackMouseEffect() 45​TrackMouseEffect::TrackMouseEffect()
45 : m_active(false) 46​ : m_angle(0)
46 , m_angle(0) ​
47{ 47​{
48 initConfig<TrackMouseConfig>(); 48​ initConfig<TrackMouseConfig>();
49 m_texture[0] = m_texture[1] = 0; 49​ m_texture[0] = m_texture[1] = 0;
50#ifdef KWIN_HAVE_XRENDER_COMPOSITING 50​#ifdef KWIN_HAVE_XRENDER_COMPOSITING
51 m_picture[0] = m_picture[1] = 0; 51​ m_picture[0] = m_picture[1] = 0;
52 if ( effects->compositingType() == XRenderCompositing) 52​ if ( effects->compositingType() == XRenderCompositing)
53 m_angleBase = 1.57079632679489661923; // Pi/2 53​ m_angleBase = 1.57079632679489661923; // Pi/2
54#endif 54​#endif
▲ Show 20 Lines • Show All 47 Lines • ▼ Show 20 Line(s)86{
102 } else if (m_mousePolling) { 102​ } else if (m_mousePolling) {
103 effects->stopMousePolling(); 103​ effects->stopMousePolling();
104 m_mousePolling = false; 104​ m_mousePolling = false;
105 } 105​ }
106} 106​}
107 107​
108void TrackMouseEffect::prePaintScreen(ScreenPrePaintData& data, int time) 108​void TrackMouseEffect::prePaintScreen(ScreenPrePaintData& data, int time)
109{ 109​{
110 if (m_active) { ​
111 QTime t = QTime::currentTime(); 110​ QTime t = QTime::currentTime();
112 m_angle = ((t.second() % 4) * m_angleBase) + (t.msec() / 1000.0 * m_angleBase); 111​ m_angle = ((t.second() % 4) * m_angleBase) + (t.msec() / 1000.0 * m_angleBase);
113 m_lastRect[0].moveCenter(cursorPos()); 112​ m_lastRect[0].moveCenter(cursorPos());
114 m_lastRect[1].moveCenter(cursorPos()); 113​ m_lastRect[1].moveCenter(cursorPos());
115 data.paint |= m_lastRect[0].adjusted(-1,-1,1,1); 114​ data.paint |= m_lastRect[0].adjusted(-1,-1,1,1);
116 } 115​
117 effects->prePaintScreen(data, time); 116​ effects->prePaintScreen(data, time);
118} 117​}
119 118​
120void TrackMouseEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data) 119​void TrackMouseEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
121{ 120​{
122 effects->paintScreen(mask, region, data); // paint normal screen 121​ effects->paintScreen(mask, region, data); // paint normal screen
123 if (!m_active) ​
124 return; ​
125 122​
126 if ( effects->isOpenGLCompositing() && m_texture[0] && m_texture[1]) { 123​ if ( effects->isOpenGLCompositing() && m_texture[0] && m_texture[1]) {
127 ShaderBinder binder(ShaderTrait::MapTexture); 124​ ShaderBinder binder(ShaderTrait::MapTexture);
128 GLShader *shader(binder.shader()); 125​ GLShader *shader(binder.shader());
129 if (!shader) { 126​ if (!shader) {
130 return; 127​ return;
131 } 128​ }
132 glEnable(GL_BLEND); 129​ glEnable(GL_BLEND);
▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Line(s)178 for (int i = 0; i < 2; ++i) {
186 painter->drawImage(m_lastRect[i], m_image[i]); 183​ painter->drawImage(m_lastRect[i], m_image[i]);
187 painter->restore(); 184​ painter->restore();
188 } 185​ }
189 } 186​ }
190} 187​}
191 188​
192void TrackMouseEffect::postPaintScreen() 189​void TrackMouseEffect::postPaintScreen()
193{ 190​{
194 if (m_active) { ​
195 effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1)); 191​ effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1));
196 } ​
197 effects->postPaintScreen(); 192​ effects->postPaintScreen();
198} 193​}
199 194​
200bool TrackMouseEffect::init() 195​bool TrackMouseEffect::init()
201{ 196​{
202 effects->makeOpenGLContextCurrent(); 197​ effects->makeOpenGLContextCurrent();
203#ifdef KWIN_HAVE_XRENDER_COMPOSITING 198​#ifdef KWIN_HAVE_XRENDER_COMPOSITING
204 if (!(m_texture[0] || m_picture[0] || !m_image[0].isNull())) { 199​ if (!(m_texture[0] || m_picture[0] || !m_image[0].isNull())) {
205 loadTexture(); 200​ loadTexture();
206 if (!(m_texture[0] || m_picture[0] || !m_image[0].isNull())) 201​ if (!(m_texture[0] || m_picture[0] || !m_image[0].isNull()))
207 return false; 202​ return false;
208 } 203​ }
209#else 204​#else
210 if (!m_texture[0] || m_image[0].isNull()) { 205​ if (!m_texture[0] || m_image[0].isNull()) {
211 loadTexture(); 206​ loadTexture();
212 if (!m_texture[0] || m_image[0].isNull()) 207​ if (!m_texture[0] || m_image[0].isNull())
213 return false; 208​ return false;
214 } 209​ }
215#endif 210​#endif
216 m_lastRect[0].moveCenter(cursorPos()); 211​ m_lastRect[0].moveCenter(cursorPos());
217 m_lastRect[1].moveCenter(cursorPos()); 212​ m_lastRect[1].moveCenter(cursorPos());
218 m_active = true; ​
219 m_angle = 0; 213​ m_angle = 0;
220 return true; 214​ return true;
221} 215​}
222 216​
223void TrackMouseEffect::toggle() 217​void TrackMouseEffect::toggle()
224{ 218​{
225 if (m_mousePolling) 219​ switch (m_state) {
226 return; 220​ case State::ActivatedByModifiers:
davidedmundsonUnsubmitted
Not Done

One comment I forgot to save.

There's an inbalance here:

If you activate by shortcut, then pressing a modifier on and off won't disable it
But if you activate by modifier then toggling the shortcut will disable it

This might become an issue if a user has it bound to both meta modifier and shortcut meta+a and pressed whilst moving the mouse.

They would hit meta, activate it by modifier, press the shortcut which then turns it off, release the keys and then it would stay off even though they hit the shortcut once.

/maybe/ we actually want

case State::ActivatedByModifiers:

m_state = ActivatedByShortcut
break;

but it's an extreme edge case

davidedmundson: One comment I forgot to save. There's an inbalance here: If you activate by shortcut, then…
zzagAuthorUnsubmitted
Not Done

If you activate by shortcut, then pressing a modifier on and off won't disable it. But if you activate by modifier then toggling the shortcut will disable it

That's totally intentional.

They would hit meta, activate it by modifier, press the shortcut which then turns it off, release the keys and then it would stay off even though they hit the shortcut once.

mouseChanged is emitted when, for example, mouse has been moved. If you press a modifier key, mouseChanged is not emitted. So, that's fine.

Also, this leads to a bug in some sense, e.g. if you stop moving mouse and then release modifiers, the effect will be still active even though modifiers are not pressed anymore.

zzag: > If you activate by shortcut, then pressing a modifier on and off won't disable it. But if you…
zzagAuthorUnsubmitted
Not Done

OK, that's bs. On Wayland, I suppose things are a little bit different.

zzag: OK, that's bs. On Wayland, I suppose things are a little bit different.
221​ m_state = State::ActivatedByShortcut;
222​ break;
223​
224​ case State::ActivatedByShortcut:
225​ m_state = State::Inactive;
226​ break;
227 227​
228 if (m_active) { 228​ case State::Inactive:
229 m_active = false; 229​ if (!init()) {
230 } else if (!init()) { ​
231 return; 230​ return;
232 } 231​ }
232​ m_state = State::ActivatedByShortcut;
233​ break;
234​
235​ default:
236​ Q_UNREACHABLE();
237​ break;
238​ }
239​
233 effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1)); 240​ effects->addRepaint(m_lastRect[0].adjusted(-1, -1, 1, 1));
234} 241​}
235 242​
236void TrackMouseEffect::slotMouseChanged(const QPoint&, const QPoint&, 243​void TrackMouseEffect::slotMouseChanged(const QPoint&, const QPoint&,
237 Qt::MouseButtons, Qt::MouseButtons, 244​ Qt::MouseButtons, Qt::MouseButtons,
238 Qt::KeyboardModifiers modifiers, Qt::KeyboardModifiers) 245​ Qt::KeyboardModifiers modifiers, Qt::KeyboardModifiers)
239{ 246​{
240 if (!m_mousePolling) // we didn't ask for it but maybe someone else did... 247​ if (!m_mousePolling) { // we didn't ask for it but maybe someone else did...
241 return; 248​ return;
242 if (m_modifiers && modifiers == m_modifiers) { 249​ }
243 if (!m_active && !init()) { 250​
251​ switch (m_state) {
252​ case State::ActivatedByModifiers:
253​ if (modifiers == m_modifiers) {
244 return; 254​ return;
245 } 255​ }
246 effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1)); 256​ m_state = State::Inactive;
247 } else if (m_active) { 257​ break;
248 m_active = false; 258​
249 effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1)); 259​ case State::ActivatedByShortcut:
260​ return;
261​
262​ case State::Inactive:
263​ if (modifiers != m_modifiers) {
264​ return;
250 } 265​ }
266​ if (!init()) {
267​ return;
268​ }
269​ m_state = State::ActivatedByModifiers;
270​ break;
271​
272​ default:
273​ Q_UNREACHABLE();
274​ break;
275​ }
276​
277​ effects->addRepaint(m_lastRect[0].adjusted(-1, -1, 1, 1));
251} 278​}
252 279​
253void TrackMouseEffect::loadTexture() 280​void TrackMouseEffect::loadTexture()
254{ 281​{
255 QString f[2] = {QStandardPaths::locate(QStandardPaths::DataLocation, QStringLiteral("tm_outer.png")), 282​ QString f[2] = {QStandardPaths::locate(QStandardPaths::DataLocation, QStringLiteral("tm_outer.png")),
256 QStandardPaths::locate(QStandardPaths::DataLocation, QStringLiteral("tm_inner.png"))}; 283​ QStandardPaths::locate(QStandardPaths::DataLocation, QStringLiteral("tm_inner.png"))};
257 if (f[0].isEmpty() || f[1].isEmpty()) 284​ if (f[0].isEmpty() || f[1].isEmpty())
258 return; 285​ return;
Show All 16 Lines301 if (effects->compositingType() == QPainterCompositing) {
275 m_image[i] = QImage(f[i]); 302​ m_image[i] = QImage(f[i]);
276 m_lastRect[i].setSize(m_image[i].size()); 303​ m_lastRect[i].setSize(m_image[i].size());
277 } 304​ }
278 } 305​ }
279} 306​}
280 307​
281bool TrackMouseEffect::isActive() const 308​bool TrackMouseEffect::isActive() const
282{ 309​{
283 return m_active; 310​ return m_state != State::Inactive;
284} 311​}
285 312​
286} // namespace 313​} // namespace