| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Quick Controls module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "qquickandroid9patch_p.h" |
| #include <qquickwindow.h> |
| #include <qsgnode.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QQuickAndroid9PatchNode1 : public QSGGeometryNode |
| { |
| public: |
| QQuickAndroid9PatchNode1(); |
| ~QQuickAndroid9PatchNode1(); |
| |
| void initialize(QSGTexture *texture, const QRectF &bounds, const QSize &sourceSize, |
| const QQuickAndroid9PatchDivs1 &xDivs, const QQuickAndroid9PatchDivs1 &yDivs); |
| |
| private: |
| QSGGeometry m_geometry; |
| QSGTextureMaterial m_material; |
| }; |
| |
| QQuickAndroid9PatchNode1::QQuickAndroid9PatchNode1() |
| : m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4) |
| { |
| m_geometry.setDrawingMode(GL_TRIANGLES); |
| setGeometry(&m_geometry); |
| setMaterial(&m_material); |
| } |
| |
| QQuickAndroid9PatchNode1::~QQuickAndroid9PatchNode1() |
| { |
| delete m_material.texture(); |
| } |
| |
| void QQuickAndroid9PatchNode1::initialize(QSGTexture *texture, const QRectF &bounds, const QSize &sourceSize, |
| const QQuickAndroid9PatchDivs1 &xDivs, const QQuickAndroid9PatchDivs1 &yDivs) |
| { |
| delete m_material.texture(); |
| m_material.setTexture(texture); |
| |
| const int xlen = xDivs.data.size(); |
| const int ylen = yDivs.data.size(); |
| |
| if (xlen > 0 && ylen > 0) { |
| const int quads = (xlen - 1) * (ylen - 1); |
| static const int verticesPerQuad = 6; |
| m_geometry.allocate(xlen * ylen, verticesPerQuad * quads); |
| |
| QSGGeometry::TexturedPoint2D *vertices = m_geometry.vertexDataAsTexturedPoint2D(); |
| QVector<qreal> xCoords = xDivs.coordsForSize(bounds.width()); |
| QVector<qreal> yCoords = yDivs.coordsForSize(bounds.height()); |
| for (int y = 0; y < ylen; ++y) { |
| for (int x = 0; x < xlen; ++x, ++vertices) |
| vertices->set(xCoords[x], yCoords[y], xDivs.data[x] / sourceSize.width(), |
| yDivs.data[y] / sourceSize.height()); |
| } |
| |
| quint16 *indices = m_geometry.indexDataAsUShort(); |
| int n = quads; |
| for (int q = 0; n--; ++q) { |
| if ((q + 1) % xlen == 0) // next row |
| ++q; |
| // Bottom-left half quad triangle |
| indices[0] = q; |
| indices[1] = q + xlen; |
| indices[2] = q + xlen + 1; |
| |
| // Top-right half quad triangle |
| indices[3] = q; |
| indices[4] = q + xlen + 1; |
| indices[5] = q + 1; |
| |
| indices += verticesPerQuad; |
| } |
| } |
| |
| markDirty(QSGNode::DirtyGeometry | QSGNode::DirtyMaterial); |
| } |
| |
| QVector<qreal> QQuickAndroid9PatchDivs1::coordsForSize(qreal size) const |
| { |
| // n = number of stretchable sections |
| // We have to compensate when adding 0 and/or |
| // the source image width to the divs vector. |
| const int l = data.size(); |
| const int n = (inverted ? l - 1 : l) >> 1; |
| const qreal stretchAmount = (size - data.last()) / n; |
| |
| QVector<qreal> coords; |
| coords.reserve(l); |
| coords.append(0); |
| |
| bool stretch = !inverted; |
| for (int i = 1; i < l; ++i) { |
| qreal advance = data[i] - data[i - 1]; |
| if (stretch) |
| advance += stretchAmount; |
| coords.append(coords.last() + advance); |
| |
| stretch = !stretch; |
| } |
| |
| return coords; |
| } |
| |
| void QQuickAndroid9PatchDivs1::fill(const QVariantList &divs, qreal size) |
| { |
| if (!data.isEmpty()) |
| return; |
| |
| inverted = divs.isEmpty() || divs.first().toInt() != 0; |
| // Reserve an extra item in case we need to add the image width/height |
| if (inverted) { |
| data.reserve(divs.size() + 2); |
| data.append(0); |
| } else { |
| data.reserve(divs.size() + 1); |
| } |
| |
| for (const QVariant &div : divs) |
| data.append(div.toReal()); |
| |
| data.append(size); |
| } |
| |
| void QQuickAndroid9PatchDivs1::clear() |
| { |
| data.clear(); |
| } |
| |
| QQuickAndroid9Patch1::QQuickAndroid9Patch1(QQuickItem *parent) : QQuickItem(parent) |
| { |
| connect(this, SIGNAL(widthChanged()), this, SLOT(updateDivs())); |
| connect(this, SIGNAL(heightChanged()), this, SLOT(updateDivs())); |
| } |
| |
| QQuickAndroid9Patch1::~QQuickAndroid9Patch1() |
| { |
| } |
| |
| QUrl QQuickAndroid9Patch1::source() const |
| { |
| return m_source; |
| } |
| |
| void QQuickAndroid9Patch1::setSource(const QUrl &source) |
| { |
| if (m_source != source) { |
| m_source = source; |
| m_xDivs.clear(); |
| m_yDivs.clear(); |
| loadImage(); |
| m_sourceSize = m_image.size(); |
| |
| emit sourceChanged(source); |
| emit sourceSizeChanged(m_sourceSize); |
| } |
| } |
| |
| QVariantList QQuickAndroid9Patch1::xDivs() const |
| { |
| return m_xVars; |
| } |
| |
| void QQuickAndroid9Patch1::setXDivs(const QVariantList &divs) |
| { |
| if (m_xVars != divs) { |
| m_xVars = divs; |
| |
| m_xDivs.clear(); |
| updateDivs(); |
| emit xDivsChanged(divs); |
| } |
| } |
| |
| QVariantList QQuickAndroid9Patch1::yDivs() const |
| { |
| return m_yVars; |
| } |
| |
| void QQuickAndroid9Patch1::setYDivs(const QVariantList &divs) |
| { |
| if (m_yVars != divs) { |
| m_yVars = divs; |
| |
| m_yDivs.clear(); |
| updateDivs(); |
| emit yDivsChanged(divs); |
| } |
| } |
| |
| QSize QQuickAndroid9Patch1::sourceSize() const |
| { |
| return m_sourceSize; |
| } |
| |
| void QQuickAndroid9Patch1::classBegin() |
| { |
| QQuickItem::classBegin(); |
| } |
| |
| void QQuickAndroid9Patch1::componentComplete() |
| { |
| QQuickItem::componentComplete(); |
| loadImage(); |
| } |
| |
| QSGNode *QQuickAndroid9Patch1::updatePaintNode(QSGNode *node, UpdatePaintNodeData *data) |
| { |
| Q_UNUSED(data); |
| |
| if (m_image.isNull()) { |
| delete node; |
| return 0; |
| } |
| |
| QQuickAndroid9PatchNode1 *patchNode = static_cast<QQuickAndroid9PatchNode1 *>(node); |
| if (!patchNode) |
| patchNode = new QQuickAndroid9PatchNode1; |
| |
| #ifdef QSG_RUNTIME_DESCRIPTION |
| qsgnode_set_description(patchNode, QString::fromLatin1("Android9Patch: '%1'").arg(m_source.toString())); |
| #endif |
| |
| QSGTexture *texture = window()->createTextureFromImage(m_image); |
| patchNode->initialize(texture, boundingRect(), m_image.size(), m_xDivs, m_yDivs); |
| return patchNode; |
| } |
| |
| void QQuickAndroid9Patch1::loadImage() |
| { |
| if (!isComponentComplete()) |
| return; |
| |
| if (m_source.isEmpty()) |
| m_image = QImage(); |
| else |
| m_image = QImage(m_source.toLocalFile()); |
| |
| setFlag(QQuickItem::ItemHasContents, !m_image.isNull()); |
| setImplicitSize(m_image.width(), m_image.height()); |
| |
| updateDivs(); |
| } |
| |
| void QQuickAndroid9Patch1::updateDivs() |
| { |
| if (!isComponentComplete() || m_image.isNull() || width() <= 0 || height() <= 0) |
| return; |
| |
| m_xDivs.fill(m_xVars, m_image.width()); |
| m_yDivs.fill(m_yVars, m_image.height()); |
| |
| update(); |
| } |
| |
| QT_END_NAMESPACE |