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Diffstat (limited to 'src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp')
| -rw-r--r-- | src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp | 469 |
1 files changed, 0 insertions, 469 deletions
diff --git a/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp b/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp deleted file mode 100644 index 66404ba4..00000000 --- a/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp +++ /dev/null @@ -1,469 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL3$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPLv3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or later as published by the Free -** Software Foundation and appearing in the file LICENSE.GPL included in -** the packaging of this file. Please review the following information to -** ensure the GNU General Public License version 2.0 requirements will be -** met: http://www.gnu.org/licenses/gpl-2.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qquickninepatchimage_p.h" - -#include <QtCore/qfileinfo.h> -#include <QtQuick/qsggeometry.h> -#include <QtQuick/qsgtexturematerial.h> -#include <QtQuick/private/qsgnode_p.h> -#include <QtQuick/private/qquickimage_p_p.h> - -QT_BEGIN_NAMESPACE - -struct QQuickNinePatchData -{ - QList<qreal> coordsForSize(qreal count) const; - - inline bool isNull() const { return data.isEmpty(); } - inline int count() const { return data.size(); } - inline qreal at(int index) const { return data.at(index); } - inline qreal size() const { return data.last(); } - - void fill(const QList<qreal> &coords, qreal count); - void clear(); - -private: - bool inverted = false; - QList<qreal> data; -}; - -QList<qreal> QQuickNinePatchData::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) / 2; - const qreal stretch = (size - data.last()) / n; - - QList<qreal> coords; - coords.reserve(l); - coords.append(0); - - bool stretched = !inverted; - for (int i = 1; i < l; ++i) { - qreal advance = data[i] - data[i - 1]; - if (stretched) - advance += stretch; - coords.append(coords.last() + advance); - - stretched = !stretched; - } - - return coords; -} - -void QQuickNinePatchData::fill(const QList<qreal> &coords, qreal size) -{ - data.clear(); - inverted = coords.isEmpty() || coords.first() != 0; - - // Reserve an extra item in case we need to add the image width/height - if (inverted) { - data.reserve(coords.size() + 2); - data.append(0); - } else { - data.reserve(coords.size() + 1); - } - - data += coords; - data.append(size); -} - -void QQuickNinePatchData::clear() -{ - data.clear(); -} - -class QQuickNinePatchNode : public QSGGeometryNode -{ -public: - QQuickNinePatchNode(); - ~QQuickNinePatchNode(); - - void initialize(QSGTexture *texture, const QSizeF &targetSize, const QSize &sourceSize, - const QQuickNinePatchData &xDivs, const QQuickNinePatchData &yDivs, qreal dpr); - -private: - QSGGeometry m_geometry; - QSGTextureMaterial m_material; -}; - -QQuickNinePatchNode::QQuickNinePatchNode() - : m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4) -{ - m_geometry.setDrawingMode(QSGGeometry::DrawTriangles); - setGeometry(&m_geometry); - setMaterial(&m_material); -} - -QQuickNinePatchNode::~QQuickNinePatchNode() -{ - delete m_material.texture(); -} - -void QQuickNinePatchNode::initialize(QSGTexture *texture, const QSizeF &targetSize, const QSize &sourceSize, - const QQuickNinePatchData &xDivs, const QQuickNinePatchData &yDivs, qreal dpr) -{ - delete m_material.texture(); - m_material.setTexture(texture); - - const int xlen = xDivs.count(); - const int ylen = yDivs.count(); - - 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(); - QList<qreal> xCoords = xDivs.coordsForSize(targetSize.width()); - QList<qreal> yCoords = yDivs.coordsForSize(targetSize.height()); - - for (int y = 0; y < ylen; ++y) { - for (int x = 0; x < xlen; ++x, ++vertices) - vertices->set(xCoords[x] / dpr, yCoords[y] / dpr, - xDivs.at(x) / sourceSize.width(), - yDivs.at(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); -} - -class QQuickNinePatchImagePrivate : public QQuickImagePrivate -{ - Q_DECLARE_PUBLIC(QQuickNinePatchImage) - -public: - void updatePatches(); - void updatePaddings(const QSizeF &size, const QList<qreal> &horizontal, const QList<qreal> &vertical); - void updateInsets(const QList<qreal> &horizontal, const QList<qreal> &vertical); - - bool resetNode = false; - qreal topPadding = 0; - qreal leftPadding = 0; - qreal rightPadding = 0; - qreal bottomPadding = 0; - qreal topInset = 0; - qreal leftInset = 0; - qreal rightInset = 0; - qreal bottomInset = 0; - - QImage ninePatch; - QQuickNinePatchData xDivs; - QQuickNinePatchData yDivs; -}; - -static QList<qreal> readCoords(const QRgb *data, int from, int count, int offset, QRgb color) -{ - int p1 = -1; - QList<qreal> coords; - for (int i = 0; i < count; ++i) { - int p2 = from + i * offset; - if (data[p2] == color) { - // colored pixel - if (p1 == -1) - p1 = i; - } else { - // empty pixel - if (p1 != -1) { - coords << p1 << i; - p1 = -1; - } - } - } - return coords; -} - -void QQuickNinePatchImagePrivate::updatePatches() -{ - if (ninePatch.isNull()) - return; - - int w = ninePatch.width(); - int h = ninePatch.height(); - const QRgb *data = reinterpret_cast<const QRgb *>(ninePatch.constBits()); - - const QRgb black = qRgb(0,0,0); - const QRgb red = qRgb(255,0,0); - - xDivs.fill(readCoords(data, 1, w - 1, 1, black), w - 2); // top left -> top right - yDivs.fill(readCoords(data, w, h - 1, w, black), h - 2); // top left -> bottom left - - QList<qreal> hInsets = readCoords(data, (h - 1) * w + 1, w - 1, 1, red); // bottom left -> bottom right - QList<qreal> vInsets = readCoords(data, 2 * w - 1, h - 1, w, red); // top right -> bottom right - updateInsets(hInsets, vInsets); - - const QSizeF sz(w - leftInset - rightInset, h - topInset - bottomInset); - QList<qreal> hPaddings = readCoords(data, (h - 1) * w + leftInset + 1, sz.width() - 2, 1, black); // bottom left -> bottom right - QList<qreal> vPaddings = readCoords(data, (2 + topInset) * w - 1, sz.height() - 2, w, black); // top right -> bottom right - updatePaddings(sz, hPaddings, vPaddings); -} - -void QQuickNinePatchImagePrivate::updatePaddings(const QSizeF &size, const QList<qreal> &horizontal, const QList<qreal> &vertical) -{ - Q_Q(QQuickNinePatchImage); - qreal oldTopPadding = topPadding; - qreal oldLeftPadding = leftPadding; - qreal oldRightPadding = rightPadding; - qreal oldBottomPadding = bottomPadding; - - if (horizontal.count() >= 2) { - leftPadding = horizontal.first(); - rightPadding = size.width() - horizontal.last() - 2; - } else { - leftPadding = 0; - rightPadding = 0; - } - - if (vertical.count() >= 2) { - topPadding = vertical.first(); - bottomPadding = size.height() - vertical.last() - 2; - } else { - topPadding = 0; - bottomPadding = 0; - } - - if (!qFuzzyCompare(oldTopPadding, topPadding)) - emit q->topPaddingChanged(); - if (!qFuzzyCompare(oldBottomPadding, bottomPadding)) - emit q->bottomPaddingChanged(); - if (!qFuzzyCompare(oldLeftPadding, leftPadding)) - emit q->leftPaddingChanged(); - if (!qFuzzyCompare(oldRightPadding, rightPadding)) - emit q->rightPaddingChanged(); -} - -void QQuickNinePatchImagePrivate::updateInsets(const QList<qreal> &horizontal, const QList<qreal> &vertical) -{ - Q_Q(QQuickNinePatchImage); - qreal oldTopInset = topInset; - qreal oldLeftInset = leftInset; - qreal oldRightInset = rightInset; - qreal oldBottomInset = bottomInset; - - if (horizontal.count() >= 2 && horizontal.first() == 0) - leftInset = horizontal.at(1); - else - leftInset = 0; - - if (horizontal.count() == 2 && horizontal.first() > 0) - rightInset = horizontal.last() - horizontal.first(); - else if (horizontal.count() == 4) - rightInset = horizontal.last() - horizontal.at(2); - else - rightInset = 0; - - if (vertical.count() >= 2 && vertical.first() == 0) - topInset = vertical.at(1); - else - topInset = 0; - - if (vertical.count() == 2 && vertical.first() > 0) - bottomInset = vertical.last() - vertical.first(); - else if (vertical.count() == 4) - bottomInset = vertical.last() - vertical.at(2); - else - bottomInset = 0; - - if (!qFuzzyCompare(oldTopInset, topInset)) - emit q->topInsetChanged(); - if (!qFuzzyCompare(oldBottomInset, bottomInset)) - emit q->bottomInsetChanged(); - if (!qFuzzyCompare(oldLeftInset, leftInset)) - emit q->leftInsetChanged(); - if (!qFuzzyCompare(oldRightInset, rightInset)) - emit q->rightInsetChanged(); -} - -QQuickNinePatchImage::QQuickNinePatchImage(QQuickItem *parent) - : QQuickImage(*(new QQuickNinePatchImagePrivate), parent) -{ -} - -qreal QQuickNinePatchImage::topPadding() const -{ - Q_D(const QQuickNinePatchImage); - return d->topPadding / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::leftPadding() const -{ - Q_D(const QQuickNinePatchImage); - return d->leftPadding / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::rightPadding() const -{ - Q_D(const QQuickNinePatchImage); - return d->rightPadding / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::bottomPadding() const -{ - Q_D(const QQuickNinePatchImage); - return d->bottomPadding / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::topInset() const -{ - Q_D(const QQuickNinePatchImage); - return d->topInset / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::leftInset() const -{ - Q_D(const QQuickNinePatchImage); - return d->leftInset / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::rightInset() const -{ - Q_D(const QQuickNinePatchImage); - return d->rightInset / d->devicePixelRatio; -} - -qreal QQuickNinePatchImage::bottomInset() const -{ - Q_D(const QQuickNinePatchImage); - return d->bottomInset / d->devicePixelRatio; -} - -void QQuickNinePatchImage::pixmapChange() -{ - Q_D(QQuickNinePatchImage); - if (QFileInfo(d->url.fileName()).completeSuffix().toLower() == QLatin1String("9.png")) { - // Keep resetNode if it is already set, we do not want to miss an - // ImageNode->NinePatchNode change. Without this there's a chance one gets - // an incorrect cast on oldNode every once in a while with source changes. - if (!d->resetNode) - d->resetNode = d->ninePatch.isNull(); - - d->ninePatch = d->pix.image(); - if (d->ninePatch.depth() != 32) - d->ninePatch = d->ninePatch.convertToFormat(QImage::Format_ARGB32); - - int w = d->ninePatch.width(); - int h = d->ninePatch.height(); - d->pix.setImage(QImage(d->ninePatch.constBits() + 4 * (w + 1), w - 2, h - 2, d->ninePatch.bytesPerLine(), d->ninePatch.format())); - - d->updatePatches(); - } else { - /* - Only change resetNode when it's false; i.e. when no reset is pending. - updatePaintNode() will take care of setting it to false if it's true. - - Consider the following changes in source: - - normal.png => press.9.png => normal.png => focus.png - - If the last two events happen quickly, pixmapChange() can be called - twice with no call to updatePaintNode() inbetween. On the first call, - resetNode will be true (because ninePatch is not null since it is still - in the process of going from a 9-patch image to a regular image), - and on the second call, resetNode would be false if we didn't have this check. - This results in the oldNode never being deleted, and QQuickImage - tries to static_cast a QQuickNinePatchImage to a QSGInternalImageNode. - */ - if (!d->resetNode) - d->resetNode = !d->ninePatch.isNull(); - d->ninePatch = QImage(); - } - QQuickImage::pixmapChange(); -} - -QSGNode *QQuickNinePatchImage::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *data) -{ - Q_D(QQuickNinePatchImage); - Q_UNUSED(data); - - if (d->resetNode) { - delete oldNode; - oldNode = nullptr; - d->resetNode = false; - } - - QSizeF sz = size(); - QImage image = d->pix.image(); - if (!sz.isValid() || image.isNull()) { - delete oldNode; - return nullptr; - } - - if (d->ninePatch.isNull()) - return QQuickImage::updatePaintNode(oldNode, data); - - QQuickNinePatchNode *patchNode = static_cast<QQuickNinePatchNode *>(oldNode); - if (!patchNode) - patchNode = new QQuickNinePatchNode; - -#ifdef QSG_RUNTIME_DESCRIPTION - qsgnode_set_description(patchNode, QString::fromLatin1("QQuickNinePatchImage: '%1'").arg(d->url.toString())); -#endif - - // The image may wrap non-owned data (due to pixmapChange). Ensure we never - // pass such an image to the scenegraph, because with a separate render - // thread the data may become invalid (in a subsequent pixmapChange on the - // gui thread) by the time the renderer gets to do something with the QImage - // passed in here. - image.detach(); - - QSGTexture *texture = window()->createTextureFromImage(image); - patchNode->initialize(texture, sz * d->devicePixelRatio, image.size(), d->xDivs, d->yDivs, d->devicePixelRatio); - return patchNode; -} - -QT_END_NAMESPACE |