120e65b2c1
Use two textures per window instead of four, storing the left and right borders in the first texture, and the top and bottom borders in the second. This makes it possible to render the whole decoration with only two calls to glDrawArrays(). It also reduces the number of texture allocations while resizing a window.
805 lines
29 KiB
C++
805 lines
29 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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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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/*
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The base class for compositing, implementing shared functionality
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between the OpenGL and XRender backends.
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Design:
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When compositing is turned on, XComposite extension is used to redirect
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drawing of windows to pixmaps and XDamage extension is used to get informed
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about damage (changes) to window contents. This code is mostly in composite.cpp .
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Compositor::performCompositing() starts one painting pass. Painting is done
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by painting the screen, which in turn paints every window. Painting can be affected
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using effects, which are chained. E.g. painting a screen means that actually
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paintScreen() of the first effect is called, which possibly does modifications
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and calls next effect's paintScreen() and so on, until Scene::finalPaintScreen()
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is called.
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There are 3 phases of every paint (not necessarily done together):
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The pre-paint phase, the paint phase and the post-paint phase.
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The pre-paint phase is used to find out about how the painting will be actually
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done (i.e. what the effects will do). For example when only a part of the screen
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needs to be updated and no effect will do any transformation it is possible to use
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an optimized paint function. How the painting will be done is controlled
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by the mask argument, see PAINT_WINDOW_* and PAINT_SCREEN_* flags in scene.h .
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For example an effect that decides to paint a normal windows as translucent
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will need to modify the mask in its prePaintWindow() to include
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the PAINT_WINDOW_TRANSLUCENT flag. The paintWindow() function will then get
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the mask with this flag turned on and will also paint using transparency.
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The paint pass does the actual painting, based on the information collected
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using the pre-paint pass. After running through the effects' paintScreen()
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either paintGenericScreen() or optimized paintSimpleScreen() are called.
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Those call paintWindow() on windows (not necessarily all), possibly using
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clipping to optimize performance and calling paintWindow() first with only
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PAINT_WINDOW_OPAQUE to paint the opaque parts and then later
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with PAINT_WINDOW_TRANSLUCENT to paint the transparent parts. Function
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paintWindow() again goes through effects' paintWindow() until
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finalPaintWindow() is called, which calls the window's performPaint() to
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do the actual painting.
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The post-paint can be used for cleanups and is also used for scheduling
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repaints during the next painting pass for animations. Effects wanting to
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repaint certain parts can manually damage them during post-paint and repaint
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of these parts will be done during the next paint pass.
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*/
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#include "scene.h"
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#include <X11/extensions/shape.h>
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#include <QGraphicsScene>
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#include <QGraphicsView>
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#include <QVector2D>
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#include "client.h"
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#include "decorations.h"
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#include "deleted.h"
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#include "effects.h"
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#include "overlaywindow.h"
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#include "shadow.h"
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#include "thumbnailitem.h"
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#include "workspace.h"
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namespace KWin
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{
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//****************************************
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// Scene
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//****************************************
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Scene::Scene(Workspace* ws)
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: QObject(ws)
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, wspace(ws)
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{
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last_time.invalidate(); // Initialize the timer
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connect(Workspace::self(), SIGNAL(deletedRemoved(KWin::Deleted*)), SLOT(windowDeleted(KWin::Deleted*)));
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}
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Scene::~Scene()
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{
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}
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// returns mask and possibly modified region
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void Scene::paintScreen(int* mask, QRegion* region)
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{
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const QRegion displayRegion(0, 0, displayWidth(), displayHeight());
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*mask = (*region == displayRegion) ? 0 : PAINT_SCREEN_REGION;
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updateTimeDiff();
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// preparation step
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static_cast<EffectsHandlerImpl*>(effects)->startPaint();
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ScreenPrePaintData pdata;
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pdata.mask = *mask;
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pdata.paint = *region;
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effects->prePaintScreen(pdata, time_diff);
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*mask = pdata.mask;
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*region = pdata.paint;
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if (*mask & (PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS)) {
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// Region painting is not possible with transformations,
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// because screen damage doesn't match transformed positions.
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*mask &= ~PAINT_SCREEN_REGION;
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*region = infiniteRegion();
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} else if (*mask & PAINT_SCREEN_REGION) {
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// make sure not to go outside visible screen
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*region &= displayRegion;
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} else {
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// whole screen, not transformed, force region to be full
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*region = displayRegion;
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}
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painted_region = *region;
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if (*mask & PAINT_SCREEN_BACKGROUND_FIRST) {
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paintBackground(*region);
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}
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ScreenPaintData data;
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effects->paintScreen(*mask, *region, data);
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foreach (Window * w, stacking_order) {
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effects->postPaintWindow(effectWindow(w));
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}
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effects->postPaintScreen();
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*region |= painted_region;
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// make sure not to go outside of the screen area
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*region &= displayRegion;
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// make sure all clipping is restored
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Q_ASSERT(!PaintClipper::clip());
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}
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// Compute time since the last painting pass.
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void Scene::updateTimeDiff()
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{
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if (!last_time.isValid()) {
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// Painting has been idle (optimized out) for some time,
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// which means time_diff would be huge and would break animations.
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// Simply set it to one (zero would mean no change at all and could
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// cause problems).
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time_diff = 1;
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last_time.start();
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} else
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time_diff = last_time.restart();
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if (time_diff < 0) // check time rollback
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time_diff = 1;
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}
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// Painting pass is optimized away.
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void Scene::idle()
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{
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// Don't break time since last paint for the next pass.
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last_time.invalidate();
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}
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// the function that'll be eventually called by paintScreen() above
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void Scene::finalPaintScreen(int mask, QRegion region, ScreenPaintData& data)
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{
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if (mask & (PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS))
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paintGenericScreen(mask, data);
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else
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paintSimpleScreen(mask, region);
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}
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// The generic painting code that can handle even transformations.
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// It simply paints bottom-to-top.
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void Scene::paintGenericScreen(int orig_mask, ScreenPaintData)
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{
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if (!(orig_mask & PAINT_SCREEN_BACKGROUND_FIRST)) {
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paintBackground(infiniteRegion());
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}
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QList< Phase2Data > phase2;
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foreach (Window * w, stacking_order) { // bottom to top
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Toplevel* topw = w->window();
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// Reset the repaint_region.
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// This has to be done here because many effects schedule a repaint for
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// the next frame within Effects::prePaintWindow.
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topw->resetRepaints();
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WindowPrePaintData data;
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data.mask = orig_mask | (w->isOpaque() ? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT);
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w->resetPaintingEnabled();
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data.paint = infiniteRegion(); // no clipping, so doesn't really matter
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data.clip = QRegion();
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data.quads = w->buildQuads();
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// preparation step
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effects->prePaintWindow(effectWindow(w), data, time_diff);
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#ifndef NDEBUG
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if (data.quads.isTransformed()) {
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kFatal(1212) << "Pre-paint calls are not allowed to transform quads!" ;
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}
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#endif
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if (!w->isPaintingEnabled()) {
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continue;
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}
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phase2.append(Phase2Data(w, infiniteRegion(), data.clip, data.mask, data.quads));
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// transformations require window pixmap
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w->suspendUnredirect(data.mask
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& (PAINT_WINDOW_TRANSLUCENT | PAINT_SCREEN_TRANSFORMED | PAINT_WINDOW_TRANSFORMED));
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}
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foreach (const Phase2Data & d, phase2) {
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paintWindow(d.window, d.mask, d.region, d.quads);
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}
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}
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// The optimized case without any transformations at all.
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// It can paint only the requested region and can use clipping
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// to reduce painting and improve performance.
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void Scene::paintSimpleScreen(int orig_mask, QRegion region)
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{
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assert((orig_mask & (PAINT_SCREEN_TRANSFORMED
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| PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS)) == 0);
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QList< QPair< Window*, Phase2Data > > phase2data;
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QRegion dirtyArea = region;
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bool opaqueFullscreen(false);
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for (int i = 0; // do prePaintWindow bottom to top
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i < stacking_order.count();
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++i) {
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Window* w = stacking_order[ i ];
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Toplevel* topw = w->window();
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WindowPrePaintData data;
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data.mask = orig_mask | (w->isOpaque() ? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT);
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w->resetPaintingEnabled();
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data.paint = region;
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data.paint |= topw->repaints();
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data.paint |= topw->decorationPendingRegion();
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// Reset the repaint_region.
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// This has to be done here because many effects schedule a repaint for
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// the next frame within Effects::prePaintWindow.
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topw->resetRepaints();
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// Clip out the decoration for opaque windows; the decoration is drawn in the second pass
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opaqueFullscreen = false; // TODO: do we care about unmanged windows here (maybe input windows?)
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if (w->isOpaque()) {
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Client *c = NULL;
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if (topw->isClient()) {
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c = static_cast<Client*>(topw);
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opaqueFullscreen = c->isFullScreen();
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}
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// the window is fully opaque
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if (c && c->decorationHasAlpha()) {
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// decoration uses alpha channel, so we may not exclude it in clipping
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data.clip = w->clientShape().translated(w->x(), w->y());
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} else {
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// decoration is fully opaque
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if (c && c->isShade()) {
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data.clip = QRegion();
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} else {
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data.clip = w->shape().translated(w->x(), w->y());
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}
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}
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} else if (topw->hasAlpha() && topw->opacity() == 1.0) {
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// the window is partially opaque
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data.clip = (w->clientShape() & topw->opaqueRegion().translated(topw->clientPos())).translated(w->x(), w->y());
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} else {
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data.clip = QRegion();
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}
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data.quads = w->buildQuads();
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// preparation step
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effects->prePaintWindow(effectWindow(w), data, time_diff);
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#ifndef NDEBUG
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if (data.quads.isTransformed()) {
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kFatal(1212) << "Pre-paint calls are not allowed to transform quads!" ;
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}
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#endif
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if (!w->isPaintingEnabled()) {
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w->suspendUnredirect(true);
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continue;
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}
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dirtyArea |= data.paint;
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// Schedule the window for painting
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phase2data.append(QPair< Window*, Phase2Data >(w,Phase2Data(w, data.paint, data.clip,
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data.mask, data.quads)));
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// no transformations, but translucency requires window pixmap
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w->suspendUnredirect(data.mask & PAINT_WINDOW_TRANSLUCENT);
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}
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const QRegion displayRegion(0, 0, displayWidth(), displayHeight());
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bool fullRepaint(dirtyArea == displayRegion); // spare some expensive region operations
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if (!fullRepaint) {
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extendPaintRegion(dirtyArea, opaqueFullscreen);
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fullRepaint = (dirtyArea == displayRegion);
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}
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QRegion allclips, upperTranslucentDamage;
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// This is the occlusion culling pass
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for (int i = phase2data.count() - 1; i >= 0; --i) {
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QPair< Window*, Phase2Data > *entry = &phase2data[i];
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Phase2Data *data = &entry->second;
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if (fullRepaint)
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data->region = displayRegion;
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else
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data->region |= upperTranslucentDamage;
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// subtract the parts which will possibly been drawn as part of
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// a higher opaque window
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data->region -= allclips;
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// Here we rely on WindowPrePaintData::setTranslucent() to remove
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// the clip if needed.
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if (!data->clip.isEmpty() && !(data->mask & PAINT_WINDOW_TRANSFORMED)) {
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// clip away the opaque regions for all windows below this one
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allclips |= data->clip;
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// extend the translucent damage for windows below this by remaining (translucent) regions
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if (!fullRepaint)
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upperTranslucentDamage |= data->region - data->clip;
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} else if (!fullRepaint) {
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upperTranslucentDamage |= data->region;
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}
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}
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QRegion paintedArea;
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// Fill any areas of the root window not covered by opaque windows
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if (!(orig_mask & PAINT_SCREEN_BACKGROUND_FIRST)) {
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paintedArea = dirtyArea - allclips;
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paintBackground(paintedArea);
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}
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// Now walk the list bottom to top and draw the windows.
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for (int i = 0; i < phase2data.count(); ++i) {
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Phase2Data *data = &phase2data[i].second;
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// add all regions which have been drawn so far
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paintedArea |= data->region;
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data->region = paintedArea;
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paintWindow(data->window, data->mask, data->region, data->quads);
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}
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if (fullRepaint)
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painted_region = displayRegion;
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else
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painted_region |= paintedArea;
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}
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static Scene::Window *s_recursionCheck = NULL;
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void Scene::paintWindow(Window* w, int mask, QRegion region, WindowQuadList quads)
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{
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// no painting outside visible screen (and no transformations)
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region &= QRect(0, 0, displayWidth(), displayHeight());
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if (region.isEmpty()) // completely clipped
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return;
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if (s_recursionCheck == w) {
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return;
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}
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WindowPaintData data(w->window()->effectWindow());
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data.quads = quads;
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effects->paintWindow(effectWindow(w), mask, region, data);
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// paint thumbnails on top of window
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paintWindowThumbnails(w, region, data.opacity(), data.brightness(), data.saturation());
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// and desktop thumbnails
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paintDesktopThumbnails(w);
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}
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void Scene::paintWindowThumbnails(Scene::Window *w, QRegion region, qreal opacity, qreal brightness, qreal saturation)
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{
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EffectWindowImpl *wImpl = static_cast<EffectWindowImpl*>(effectWindow(w));
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for (QHash<WindowThumbnailItem*, QWeakPointer<EffectWindowImpl> >::const_iterator it = wImpl->thumbnails().constBegin();
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it != wImpl->thumbnails().constEnd();
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++it) {
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if (it.value().isNull()) {
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continue;
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}
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WindowThumbnailItem *item = it.key();
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if (!item->isVisible()) {
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continue;
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}
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EffectWindowImpl *thumb = it.value().data();
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WindowPaintData thumbData(thumb);
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thumbData.setOpacity(opacity);
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thumbData.setBrightness(brightness * item->brightness());
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thumbData.setSaturation(saturation * item->saturation());
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const QRect visualThumbRect(thumb->expandedGeometry());
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QSizeF size = QSizeF(visualThumbRect.size());
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size.scale(QSizeF(item->width(), item->height()), Qt::KeepAspectRatio);
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if (size.width() > visualThumbRect.width() || size.height() > visualThumbRect.height()) {
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size = QSizeF(visualThumbRect.size());
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}
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thumbData.setXScale(size.width() / static_cast<qreal>(visualThumbRect.width()));
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thumbData.setYScale(size.height() / static_cast<qreal>(visualThumbRect.height()));
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// it can happen in the init/closing phase of the tabbox
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// that the corresponding QGraphicsScene is not available
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if (item->scene() == 0) {
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continue;
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}
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QGraphicsView* declview = findViewForThumbnailItem(item, w);
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if (declview == 0) {
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continue;
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}
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QPoint viewPos = findOffsetInWindow(declview, w->window()->window());
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const QPoint point = viewPos + declview->mapFromScene(item->scenePos());
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qreal x = point.x() + w->x() + (item->width() - size.width())/2;
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qreal y = point.y() + w->y() + (item->height() - size.height()) / 2;
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x -= thumb->x();
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y -= thumb->y();
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// compensate shadow topleft padding
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x += (thumb->x()-visualThumbRect.x())*thumbData.xScale();
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y += (thumb->y()-visualThumbRect.y())*thumbData.yScale();
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thumbData.setXTranslation(x);
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thumbData.setYTranslation(y);
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int thumbMask = PAINT_WINDOW_TRANSFORMED | PAINT_WINDOW_LANCZOS;
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if (thumbData.opacity() == 1.0) {
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thumbMask |= PAINT_WINDOW_OPAQUE;
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} else {
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thumbMask |= PAINT_WINDOW_TRANSLUCENT;
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}
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QRegion clippingRegion = region;
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clippingRegion &= QRegion(wImpl->x(), wImpl->y(), wImpl->width(), wImpl->height());
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QPainterPath path = item->clipPath();
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if (!path.isEmpty()) {
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// here we assume that the clippath consists of a single rectangle
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const QPolygonF sceneBounds = item->mapToScene(path.boundingRect());
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const QRect viewBounds = declview->mapFromScene(sceneBounds).boundingRect();
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// shrinking the rect due to rounding errors
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clippingRegion &= viewBounds.adjusted(0,0,-1,-1).translated(viewPos + w->pos());
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}
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effects->drawWindow(thumb, thumbMask, clippingRegion, thumbData);
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}
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}
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void Scene::paintDesktopThumbnails(Scene::Window *w)
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{
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EffectWindowImpl *wImpl = static_cast<EffectWindowImpl*>(effectWindow(w));
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for (QList<DesktopThumbnailItem*>::const_iterator it = wImpl->desktopThumbnails().constBegin();
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it != wImpl->desktopThumbnails().constEnd();
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++it) {
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DesktopThumbnailItem *item = *it;
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if (!item->isVisible()) {
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continue;
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}
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// it can happen in the init/closing phase of the tabbox
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// that the corresponding QGraphicsScene is not available
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if (item->scene() == 0) {
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continue;
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}
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QGraphicsView* declview = findViewForThumbnailItem(item, w);
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if (declview == 0) {
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continue;
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}
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QPoint viewPos = findOffsetInWindow(declview, w->window()->window());
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s_recursionCheck = w;
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ScreenPaintData data;
|
|
QSize size = QSize(displayWidth(), displayHeight());
|
|
|
|
size.scale(item->width(), item->height(), Qt::KeepAspectRatio);
|
|
data *= QVector2D(size.width() / double(displayWidth()),
|
|
size.height() / double(displayHeight()));
|
|
const QPoint point = viewPos + declview->mapFromScene(item->scenePos());
|
|
const qreal x = point.x() + w->x() + (item->width() - size.width())/2;
|
|
const qreal y = point.y() + w->y() + (item->height() - size.height()) / 2;
|
|
const QRect region = QRect(x, y, item->width(), item->height());
|
|
QRegion clippingRegion = region;
|
|
clippingRegion &= QRegion(wImpl->x(), wImpl->y(), wImpl->width(), wImpl->height());
|
|
QPainterPath path = item->clipPath();
|
|
if (!path.isEmpty()) {
|
|
// here we assume that the clippath consists of a single rectangle
|
|
const QPolygonF sceneBounds = item->mapToScene(path.boundingRect());
|
|
const QRect viewBounds = declview->mapFromScene(sceneBounds).boundingRect();
|
|
// shrinking the rect due to rounding errors
|
|
clippingRegion &= viewBounds.adjusted(0,0,-1,-1).translated(viewPos + w->pos());
|
|
}
|
|
data += QPointF(x, y);
|
|
const int desktopMask = PAINT_SCREEN_TRANSFORMED | PAINT_WINDOW_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
|
|
paintDesktop(item->desktop(), desktopMask, clippingRegion, data);
|
|
s_recursionCheck = NULL;
|
|
}
|
|
}
|
|
|
|
QGraphicsView *Scene::findViewForThumbnailItem(AbstractThumbnailItem *item, Scene::Window *w)
|
|
{
|
|
// in principle there could be more than one QGraphicsView per QGraphicsScene,
|
|
// although TabBox does not make use of it so far
|
|
QList<QGraphicsView*> views = item->scene()->views();
|
|
foreach (QGraphicsView* view, views) {
|
|
if (view->winId() == w->window()->window()) {
|
|
return view;
|
|
}
|
|
QWidget *parent = view;
|
|
while ((parent = parent->parentWidget())) {
|
|
// if the graphicsview is not the topmost widget we try to go up to the
|
|
// toplevel widget and check whether that is the window we are looking for.
|
|
if (parent->winId() == w->window()->window()) {
|
|
return view;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
QPoint Scene::findOffsetInWindow(QWidget *view, xcb_window_t idOfTopmostWindow)
|
|
{
|
|
if (view->winId() == idOfTopmostWindow) {
|
|
return QPoint();
|
|
}
|
|
QWidget *parent = view;
|
|
while ((parent = parent->parentWidget())) {
|
|
if (parent->winId() == idOfTopmostWindow) {
|
|
return view->mapTo(parent, QPoint());
|
|
}
|
|
}
|
|
return QPoint();
|
|
}
|
|
|
|
void Scene::paintDesktop(int desktop, int mask, const QRegion ®ion, ScreenPaintData &data)
|
|
{
|
|
static_cast<EffectsHandlerImpl*>(effects)->paintDesktop(desktop, mask, region, data);
|
|
}
|
|
|
|
// the function that'll be eventually called by paintWindow() above
|
|
void Scene::finalPaintWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data)
|
|
{
|
|
effects->drawWindow(w, mask, region, data);
|
|
}
|
|
|
|
// will be eventually called from drawWindow()
|
|
void Scene::finalDrawWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data)
|
|
{
|
|
w->sceneWindow()->performPaint(mask, region, data);
|
|
}
|
|
|
|
void Scene::extendPaintRegion(QRegion ®ion, bool opaqueFullscreen)
|
|
{
|
|
Q_UNUSED(region);
|
|
Q_UNUSED(opaqueFullscreen);
|
|
}
|
|
|
|
bool Scene::blocksForRetrace() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool Scene::syncsToVBlank() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void Scene::screenGeometryChanged(const QSize &size)
|
|
{
|
|
overlayWindow()->resize(size);
|
|
}
|
|
|
|
//****************************************
|
|
// Scene::Window
|
|
//****************************************
|
|
|
|
Scene::Window::Window(Toplevel * c)
|
|
: toplevel(c)
|
|
, filter(ImageFilterFast)
|
|
, m_shadow(NULL)
|
|
, disable_painting(0)
|
|
, shape_valid(false)
|
|
, cached_quad_list(NULL)
|
|
{
|
|
}
|
|
|
|
Scene::Window::~Window()
|
|
{
|
|
delete cached_quad_list;
|
|
delete m_shadow;
|
|
}
|
|
|
|
void Scene::Window::discardShape()
|
|
{
|
|
// it is created on-demand and cached, simply
|
|
// reset the flag
|
|
shape_valid = false;
|
|
delete cached_quad_list;
|
|
cached_quad_list = NULL;
|
|
}
|
|
|
|
// Find out the shape of the window using the XShape extension
|
|
// or if shape is not set then simply it's the window geometry.
|
|
const QRegion &Scene::Window::shape() const
|
|
{
|
|
if (!shape_valid) {
|
|
Client* c = dynamic_cast< Client* >(toplevel);
|
|
if (toplevel->shape() || (c != NULL && !c->mask().isEmpty())) {
|
|
int count, order;
|
|
XRectangle* rects = XShapeGetRectangles(display(), toplevel->frameId(),
|
|
ShapeBounding, &count, &order);
|
|
if (rects) {
|
|
shape_region = QRegion();
|
|
for (int i = 0;
|
|
i < count;
|
|
++i)
|
|
shape_region += QRegion(rects[ i ].x, rects[ i ].y,
|
|
rects[ i ].width, rects[ i ].height);
|
|
XFree(rects);
|
|
// make sure the shape is sane (X is async, maybe even XShape is broken)
|
|
shape_region &= QRegion(0, 0, width(), height());
|
|
} else
|
|
shape_region = QRegion();
|
|
} else
|
|
shape_region = QRegion(0, 0, width(), height());
|
|
shape_valid = true;
|
|
}
|
|
return shape_region;
|
|
}
|
|
|
|
QRegion Scene::Window::clientShape() const
|
|
{
|
|
if (toplevel->isClient()) {
|
|
Client *c = static_cast< Client * > (toplevel);
|
|
if (c->isShade())
|
|
return QRegion();
|
|
}
|
|
|
|
// TODO: cache
|
|
const QRegion r = shape() & QRect(toplevel->clientPos(), toplevel->clientSize());
|
|
return r.isEmpty() ? QRegion() : r;
|
|
}
|
|
|
|
bool Scene::Window::isVisible() const
|
|
{
|
|
if (toplevel->isDeleted())
|
|
return false;
|
|
if (!toplevel->isOnCurrentDesktop())
|
|
return false;
|
|
if (!toplevel->isOnCurrentActivity())
|
|
return false;
|
|
if (toplevel->isClient())
|
|
return (static_cast< Client *>(toplevel))->isShown(true);
|
|
return true; // Unmanaged is always visible
|
|
}
|
|
|
|
bool Scene::Window::isOpaque() const
|
|
{
|
|
return toplevel->opacity() == 1.0 && !toplevel->hasAlpha();
|
|
}
|
|
|
|
bool Scene::Window::isPaintingEnabled() const
|
|
{
|
|
return !disable_painting;
|
|
}
|
|
|
|
void Scene::Window::resetPaintingEnabled()
|
|
{
|
|
disable_painting = 0;
|
|
if (toplevel->isDeleted())
|
|
disable_painting |= PAINT_DISABLED_BY_DELETE;
|
|
if (static_cast<EffectsHandlerImpl*>(effects)->isDesktopRendering()) {
|
|
if (!toplevel->isOnDesktop(static_cast<EffectsHandlerImpl*>(effects)->currentRenderedDesktop())) {
|
|
disable_painting |= PAINT_DISABLED_BY_DESKTOP;
|
|
}
|
|
} else {
|
|
if (!toplevel->isOnCurrentDesktop())
|
|
disable_painting |= PAINT_DISABLED_BY_DESKTOP;
|
|
}
|
|
if (!toplevel->isOnCurrentActivity())
|
|
disable_painting |= PAINT_DISABLED_BY_ACTIVITY;
|
|
if (toplevel->isClient()) {
|
|
Client *c = static_cast<Client*>(toplevel);
|
|
if (c->isMinimized())
|
|
disable_painting |= PAINT_DISABLED_BY_MINIMIZE;
|
|
if (c->tabGroup() && c != c->tabGroup()->current())
|
|
disable_painting |= PAINT_DISABLED_BY_TAB_GROUP;
|
|
else if (c->isHiddenInternal())
|
|
disable_painting |= PAINT_DISABLED;
|
|
}
|
|
}
|
|
|
|
void Scene::Window::enablePainting(int reason)
|
|
{
|
|
disable_painting &= ~reason;
|
|
}
|
|
|
|
void Scene::Window::disablePainting(int reason)
|
|
{
|
|
disable_painting |= reason;
|
|
}
|
|
|
|
WindowQuadList Scene::Window::buildQuads(bool force) const
|
|
{
|
|
if (cached_quad_list != NULL && !force)
|
|
return *cached_quad_list;
|
|
WindowQuadList ret;
|
|
if (toplevel->clientPos() == QPoint(0, 0) && toplevel->clientSize() == toplevel->decorationRect().size())
|
|
ret = makeQuads(WindowQuadContents, shape()); // has no decoration
|
|
else {
|
|
Client *client = dynamic_cast<Client*>(toplevel);
|
|
QRegion contents = clientShape();
|
|
QRegion center = toplevel->transparentRect();
|
|
QRegion decoration = (client && decorationPlugin()->hasAlpha() ?
|
|
QRegion(client->decorationRect()) : shape()) - center;
|
|
ret = makeQuads(WindowQuadContents, contents);
|
|
|
|
QRect rects[4];
|
|
client->layoutDecorationRects(rects[0], rects[1], rects[2], rects[3], Client::WindowRelative);
|
|
|
|
if (!client || !(center.isEmpty() || client->isShade()))
|
|
ret += makeDecorationQuads(rects, decoration);
|
|
else {
|
|
// this is a shaded client, we have to create four decoration quads
|
|
const QRect bounding = rects[0] | rects[1] | rects[2] | rects[3];
|
|
ret += makeDecorationQuads(rects, bounding);
|
|
}
|
|
}
|
|
if (m_shadow) {
|
|
ret << m_shadow->shadowQuads();
|
|
}
|
|
effects->buildQuads(toplevel->effectWindow(), ret);
|
|
cached_quad_list = new WindowQuadList(ret);
|
|
return ret;
|
|
}
|
|
|
|
WindowQuadList Scene::Window::makeDecorationQuads(const QRect *rects, const QRegion ®ion) const
|
|
{
|
|
WindowQuadList list;
|
|
|
|
const QPoint offsets[4] = {
|
|
QPoint(-rects[0].x(), -rects[0].y()), // Left
|
|
QPoint(-rects[1].x(), -rects[1].y()), // Top
|
|
QPoint(-rects[2].x() + rects[0].width(), -rects[2].y()), // Right
|
|
QPoint(-rects[3].x(), -rects[3].y() + rects[1].height()) // Bottom
|
|
};
|
|
|
|
for (int i = 0; i < 4; i++) {
|
|
foreach (const QRect &r, (region & rects[i]).rects()) {
|
|
if (!r.isValid())
|
|
continue;
|
|
|
|
const int x0 = r.x();
|
|
const int y0 = r.y();
|
|
const int x1 = r.x() + r.width();
|
|
const int y1 = r.y() + r.height();
|
|
|
|
const int u0 = x0 + offsets[i].x();
|
|
const int v0 = y0 + offsets[i].y();
|
|
const int u1 = x1 + offsets[i].x();
|
|
const int v1 = y1 + offsets[i].y();
|
|
|
|
WindowQuad quad(WindowQuadDecoration);
|
|
quad[0] = WindowVertex(x0, y0, u0, v0); // Top-left
|
|
quad[1] = WindowVertex(x1, y0, u1, v0); // Top-right
|
|
quad[2] = WindowVertex(x1, y1, u1, v1); // Bottom-right
|
|
quad[3] = WindowVertex(x0, y1, u0, v1); // Bottom-left
|
|
list.append(quad);
|
|
}
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
WindowQuadList Scene::Window::makeQuads(WindowQuadType type, const QRegion& reg) const
|
|
{
|
|
WindowQuadList ret;
|
|
foreach (const QRect & r, reg.rects()) {
|
|
WindowQuad quad(type);
|
|
// TODO asi mam spatne pravy dolni roh - bud tady, nebo v jinych castech
|
|
quad[ 0 ] = WindowVertex(r.x(), r.y(), r.x(), r.y());
|
|
quad[ 1 ] = WindowVertex(r.x() + r.width(), r.y(), r.x() + r.width(), r.y());
|
|
quad[ 2 ] = WindowVertex(r.x() + r.width(), r.y() + r.height(), r.x() + r.width(), r.y() + r.height());
|
|
quad[ 3 ] = WindowVertex(r.x(), r.y() + r.height(), r.x(), r.y() + r.height());
|
|
ret.append(quad);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
//****************************************
|
|
// Scene::EffectFrame
|
|
//****************************************
|
|
Scene::EffectFrame::EffectFrame(EffectFrameImpl* frame)
|
|
: m_effectFrame(frame)
|
|
{
|
|
}
|
|
|
|
Scene::EffectFrame::~EffectFrame()
|
|
{
|
|
}
|
|
|
|
} // namespace
|