1 | /* |
2 | * SPDX-FileCopyrightText: 2020 Arjen Hiemstra <ahiemstra@heimr.nl> |
3 | * |
4 | * SPDX-License-Identifier: LGPL-2.0-or-later |
5 | */ |
6 | |
7 | #include "shadowedrectangle.h" |
8 | |
9 | #include <QQuickWindow> |
10 | #include <QSGRectangleNode> |
11 | #include <QSGRendererInterface> |
12 | |
13 | #include "scenegraph/shadernode.h" |
14 | #include "scenegraph/softwarerectanglenode.h" |
15 | |
16 | using namespace Qt::StringLiterals; |
17 | |
18 | inline QVector2D calculateAspect(const QRectF &rect) |
19 | { |
20 | auto aspect = QVector2D{1.0, 1.0}; |
21 | if (rect.width() >= rect.height()) { |
22 | aspect.setX(rect.width() / rect.height()); |
23 | } else { |
24 | aspect.setY(rect.height() / rect.width()); |
25 | } |
26 | return aspect; |
27 | } |
28 | |
29 | inline QRectF adjustRectForShadow(const QRectF &rect, float shadowSize, const QVector2D &offsets, const QVector2D &aspect) |
30 | { |
31 | auto adjusted = rect.adjusted(xp1: -shadowSize * aspect.x(), yp1: -shadowSize * aspect.y(), xp2: shadowSize * aspect.x(), yp2: shadowSize * aspect.y()); |
32 | auto offsetLength = offsets.length(); |
33 | adjusted.adjust(xp1: -offsetLength * aspect.x(), yp1: -offsetLength * aspect.y(), xp2: offsetLength * aspect.x(), yp2: offsetLength * aspect.y()); |
34 | return adjusted; |
35 | } |
36 | |
37 | BorderGroup::BorderGroup(QObject *parent) |
38 | : QObject(parent) |
39 | { |
40 | } |
41 | |
42 | qreal BorderGroup::width() const |
43 | { |
44 | return m_width; |
45 | } |
46 | |
47 | void BorderGroup::setWidth(qreal newWidth) |
48 | { |
49 | if (newWidth == m_width) { |
50 | return; |
51 | } |
52 | |
53 | m_width = newWidth; |
54 | Q_EMIT changed(); |
55 | } |
56 | |
57 | QColor BorderGroup::color() const |
58 | { |
59 | return m_color; |
60 | } |
61 | |
62 | void BorderGroup::setColor(const QColor &newColor) |
63 | { |
64 | if (newColor == m_color) { |
65 | return; |
66 | } |
67 | |
68 | m_color = newColor; |
69 | Q_EMIT changed(); |
70 | } |
71 | |
72 | ShadowGroup::ShadowGroup(QObject *parent) |
73 | : QObject(parent) |
74 | { |
75 | } |
76 | |
77 | qreal ShadowGroup::size() const |
78 | { |
79 | return m_size; |
80 | } |
81 | |
82 | void ShadowGroup::setSize(qreal newSize) |
83 | { |
84 | if (newSize == m_size) { |
85 | return; |
86 | } |
87 | |
88 | m_size = newSize; |
89 | Q_EMIT changed(); |
90 | } |
91 | |
92 | qreal ShadowGroup::xOffset() const |
93 | { |
94 | return m_xOffset; |
95 | } |
96 | |
97 | void ShadowGroup::setXOffset(qreal newXOffset) |
98 | { |
99 | if (newXOffset == m_xOffset) { |
100 | return; |
101 | } |
102 | |
103 | m_xOffset = newXOffset; |
104 | Q_EMIT changed(); |
105 | } |
106 | |
107 | qreal ShadowGroup::yOffset() const |
108 | { |
109 | return m_yOffset; |
110 | } |
111 | |
112 | void ShadowGroup::setYOffset(qreal newYOffset) |
113 | { |
114 | if (newYOffset == m_yOffset) { |
115 | return; |
116 | } |
117 | |
118 | m_yOffset = newYOffset; |
119 | Q_EMIT changed(); |
120 | } |
121 | |
122 | QColor ShadowGroup::color() const |
123 | { |
124 | return m_color; |
125 | } |
126 | |
127 | void ShadowGroup::setColor(const QColor &newColor) |
128 | { |
129 | if (newColor == m_color) { |
130 | return; |
131 | } |
132 | |
133 | m_color = newColor; |
134 | Q_EMIT changed(); |
135 | } |
136 | |
137 | CornersGroup::CornersGroup(QObject *parent) |
138 | : QObject(parent) |
139 | { |
140 | } |
141 | |
142 | qreal CornersGroup::topLeft() const |
143 | { |
144 | return m_topLeft; |
145 | } |
146 | |
147 | void CornersGroup::setTopLeft(qreal newTopLeft) |
148 | { |
149 | if (newTopLeft == m_topLeft) { |
150 | return; |
151 | } |
152 | |
153 | m_topLeft = newTopLeft; |
154 | Q_EMIT changed(); |
155 | } |
156 | |
157 | qreal CornersGroup::topRight() const |
158 | { |
159 | return m_topRight; |
160 | } |
161 | |
162 | void CornersGroup::setTopRight(qreal newTopRight) |
163 | { |
164 | if (newTopRight == m_topRight) { |
165 | return; |
166 | } |
167 | |
168 | m_topRight = newTopRight; |
169 | Q_EMIT changed(); |
170 | } |
171 | |
172 | qreal CornersGroup::bottomLeft() const |
173 | { |
174 | return m_bottomLeft; |
175 | } |
176 | |
177 | void CornersGroup::setBottomLeft(qreal newBottomLeft) |
178 | { |
179 | if (newBottomLeft == m_bottomLeft) { |
180 | return; |
181 | } |
182 | |
183 | m_bottomLeft = newBottomLeft; |
184 | Q_EMIT changed(); |
185 | } |
186 | |
187 | qreal CornersGroup::bottomRight() const |
188 | { |
189 | return m_bottomRight; |
190 | } |
191 | |
192 | void CornersGroup::setBottomRight(qreal newBottomRight) |
193 | { |
194 | if (newBottomRight == m_bottomRight) { |
195 | return; |
196 | } |
197 | |
198 | m_bottomRight = newBottomRight; |
199 | Q_EMIT changed(); |
200 | } |
201 | |
202 | QVector4D CornersGroup::toVector4D(float all) const |
203 | { |
204 | return QVector4D{m_bottomRight < 0.0 ? all : m_bottomRight, |
205 | m_topRight < 0.0 ? all : m_topRight, |
206 | m_bottomLeft < 0.0 ? all : m_bottomLeft, |
207 | m_topLeft < 0.0 ? all : m_topLeft}; |
208 | } |
209 | |
210 | ShadowedRectangle::ShadowedRectangle(QQuickItem *parentItem) |
211 | : QQuickItem(parentItem) |
212 | , m_border(std::make_unique<BorderGroup>()) |
213 | , m_shadow(std::make_unique<ShadowGroup>()) |
214 | , m_corners(std::make_unique<CornersGroup>()) |
215 | { |
216 | setFlag(flag: QQuickItem::ItemHasContents, enabled: true); |
217 | |
218 | connect(sender: m_border.get(), signal: &BorderGroup::changed, context: this, slot: &ShadowedRectangle::update); |
219 | connect(sender: m_shadow.get(), signal: &ShadowGroup::changed, context: this, slot: &ShadowedRectangle::update); |
220 | connect(sender: m_corners.get(), signal: &CornersGroup::changed, context: this, slot: &ShadowedRectangle::update); |
221 | } |
222 | |
223 | ShadowedRectangle::~ShadowedRectangle() |
224 | { |
225 | } |
226 | |
227 | BorderGroup *ShadowedRectangle::border() const |
228 | { |
229 | return m_border.get(); |
230 | } |
231 | |
232 | ShadowGroup *ShadowedRectangle::shadow() const |
233 | { |
234 | return m_shadow.get(); |
235 | } |
236 | |
237 | CornersGroup *ShadowedRectangle::corners() const |
238 | { |
239 | return m_corners.get(); |
240 | } |
241 | |
242 | qreal ShadowedRectangle::radius() const |
243 | { |
244 | return m_radius; |
245 | } |
246 | |
247 | void ShadowedRectangle::setRadius(qreal newRadius) |
248 | { |
249 | if (newRadius == m_radius) { |
250 | return; |
251 | } |
252 | |
253 | m_radius = newRadius; |
254 | update(); |
255 | Q_EMIT radiusChanged(); |
256 | } |
257 | |
258 | QColor ShadowedRectangle::color() const |
259 | { |
260 | return m_color; |
261 | } |
262 | |
263 | void ShadowedRectangle::setColor(const QColor &newColor) |
264 | { |
265 | if (newColor == m_color) { |
266 | return; |
267 | } |
268 | |
269 | m_color = newColor; |
270 | update(); |
271 | Q_EMIT colorChanged(); |
272 | } |
273 | |
274 | ShadowedRectangle::RenderType ShadowedRectangle::renderType() const |
275 | { |
276 | return m_renderType; |
277 | } |
278 | |
279 | void ShadowedRectangle::setRenderType(RenderType renderType) |
280 | { |
281 | if (renderType == m_renderType) { |
282 | return; |
283 | } |
284 | m_renderType = renderType; |
285 | update(); |
286 | Q_EMIT renderTypeChanged(); |
287 | } |
288 | |
289 | void ShadowedRectangle::componentComplete() |
290 | { |
291 | QQuickItem::componentComplete(); |
292 | } |
293 | |
294 | bool ShadowedRectangle::isSoftwareRendering() const |
295 | { |
296 | return (window() && window()->rendererInterface()->graphicsApi() == QSGRendererInterface::Software) || m_renderType == RenderType::Software; |
297 | } |
298 | |
299 | bool ShadowedRectangle::isLowPowerRendering() const |
300 | { |
301 | static bool lowPower = QByteArrayList{"1" , "true" }.contains(t: qgetenv(varName: "KIRIGAMI_LOWPOWER_HARDWARE" ).toLower()); |
302 | return (m_renderType == ShadowedRectangle::RenderType::Auto && lowPower) || m_renderType == ShadowedRectangle::RenderType::LowQuality; |
303 | } |
304 | |
305 | QSGNode *ShadowedRectangle::updatePaintNode(QSGNode *node, QQuickItem::UpdatePaintNodeData *data) |
306 | { |
307 | Q_UNUSED(data); |
308 | |
309 | if (boundingRect().isEmpty()) { |
310 | delete node; |
311 | return nullptr; |
312 | } |
313 | |
314 | if (isSoftwareRendering()) { |
315 | auto rectangleNode = static_cast<SoftwareRectangleNode *>(node); |
316 | if (!rectangleNode) { |
317 | rectangleNode = new SoftwareRectangleNode{}; |
318 | } |
319 | |
320 | rectangleNode->setRect(boundingRect()); |
321 | rectangleNode->setWindow(window()); |
322 | rectangleNode->setColor(m_color); |
323 | rectangleNode->setRadius(m_radius); |
324 | rectangleNode->setBorderWidth(m_border->width()); |
325 | rectangleNode->setBorderColor(m_border->color()); |
326 | return rectangleNode; |
327 | } |
328 | |
329 | auto shaderNode = static_cast<ShaderNode *>(node); |
330 | if (!shaderNode) { |
331 | shaderNode = new ShaderNode{}; |
332 | } |
333 | |
334 | QString shader; |
335 | if (m_border->isEnabled()) { |
336 | shader = u"shadowed_border_rectangle"_s ; |
337 | } else { |
338 | shader = u"shadowed_rectangle"_s ; |
339 | } |
340 | |
341 | if (isLowPowerRendering()) { |
342 | shader += u"_lowpower"_s ; |
343 | } |
344 | |
345 | shaderNode->setShader(shader); |
346 | shaderNode->setUniformBufferSize(sizeof(float) * 40); |
347 | |
348 | updateShaderNode(shaderNode); |
349 | |
350 | shaderNode->update(); |
351 | |
352 | return shaderNode; |
353 | } |
354 | |
355 | void ShadowedRectangle::updateShaderNode(ShaderNode *shaderNode) |
356 | { |
357 | auto rect = boundingRect(); |
358 | auto aspect = calculateAspect(rect); |
359 | auto minDimension = float(std::min(a: rect.width(), b: rect.height())); |
360 | auto shadowSize = m_shadow->size(); |
361 | auto offset = QVector2D{float(m_shadow->xOffset()), float(m_shadow->yOffset())}; |
362 | |
363 | if (isLowPowerRendering()) { |
364 | shaderNode->setRect(rect); |
365 | } else { |
366 | shaderNode->setRect(adjustRectForShadow(rect, shadowSize, offsets: offset, aspect)); |
367 | } |
368 | |
369 | UniformDataStream stream(shaderNode->uniformData()); |
370 | stream.skipMatrixOpacity(); |
371 | stream << float(shadowSize / minDimension) * 2.0f // size |
372 | << float(m_border->width()) / minDimension // border_width |
373 | << aspect // aspect |
374 | << offset / minDimension // offset |
375 | << m_corners->toVector4D(all: m_radius) / minDimension // radius |
376 | << ShaderNode::toPremultiplied(value: m_color) // color |
377 | << ShaderNode::toPremultiplied(value: m_shadow->color()) // shadow_color |
378 | << ShaderNode::toPremultiplied(value: m_border->color()); // border_color |
379 | shaderNode->markDirty(bits: QSGNode::DirtyMaterial); |
380 | } |
381 | |
382 | #include "moc_shadowedrectangle.cpp" |
383 | |