diff options
Diffstat (limited to 'src/quick/scenegraph/util/qsgdefaultimagenode.cpp')
| -rw-r--r-- | src/quick/scenegraph/util/qsgdefaultimagenode.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/quick/scenegraph/util/qsgdefaultimagenode.cpp b/src/quick/scenegraph/util/qsgdefaultimagenode.cpp new file mode 100644 index 0000000000..ed3d73adb4 --- /dev/null +++ b/src/quick/scenegraph/util/qsgdefaultimagenode.cpp @@ -0,0 +1,190 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsgdefaultimagenode_p.h" +#include <private/qsgnode_p.h> + +QT_BEGIN_NAMESPACE + +QSGDefaultImageNode::QSGDefaultImageNode() + : m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4) + , m_texCoordMode(QSGDefaultImageNode::NoTransform) + , m_isAtlasTexture(false) + , m_ownsTexture(false) +{ + setGeometry(&m_geometry); + setMaterial(&m_material); + setOpaqueMaterial(&m_opaque_material); + m_material.setMipmapFiltering(QSGTexture::None); + m_opaque_material.setMipmapFiltering(QSGTexture::None); +#ifdef QSG_RUNTIME_DESCRIPTION + qsgnode_set_description(this, QLatin1String("image")); +#endif +} + +QSGDefaultImageNode::~QSGDefaultImageNode() +{ + if (m_ownsTexture) + delete m_material.texture(); +} + +void QSGDefaultImageNode::setFiltering(QSGTexture::Filtering filtering) +{ + if (m_material.filtering() == filtering) + return; + + m_material.setFiltering(filtering); + m_opaque_material.setFiltering(filtering); + markDirty(DirtyMaterial); +} + +QSGTexture::Filtering QSGDefaultImageNode::filtering() const +{ + return m_material.filtering(); +} + +void QSGDefaultImageNode::setRect(const QRectF &r) +{ + if (m_rect == r) + return; + + m_rect = r; + rebuildGeometry(&m_geometry, texture(), m_rect, m_sourceRect, m_texCoordMode); + markDirty(DirtyGeometry); +} + +QRectF QSGDefaultImageNode::rect() const +{ + return m_rect; +} + +void QSGDefaultImageNode::setSourceRect(const QRectF &r) +{ + if (m_sourceRect == r) + return; + + m_sourceRect = r; + rebuildGeometry(&m_geometry, texture(), m_rect, m_sourceRect, m_texCoordMode); + markDirty(DirtyGeometry); +} + +QRectF QSGDefaultImageNode::sourceRect() const +{ + return m_sourceRect; +} + +void QSGDefaultImageNode::setTexture(QSGTexture *texture) +{ + Q_ASSERT(texture); + if (m_ownsTexture) + delete m_material.texture(); + m_material.setTexture(texture); + m_opaque_material.setTexture(texture); + rebuildGeometry(&m_geometry, texture, m_rect, m_sourceRect, m_texCoordMode); + + DirtyState dirty = DirtyMaterial; + // It would be tempting to skip the extra bit here and instead use + // m_material.texture to get the old state, but that texture could + // have been deleted in the mean time. + bool wasAtlas = m_isAtlasTexture; + m_isAtlasTexture = texture->isAtlasTexture(); + if (wasAtlas || m_isAtlasTexture) + dirty |= DirtyGeometry; + markDirty(dirty); +} + +QSGTexture *QSGDefaultImageNode::texture() const +{ + return m_material.texture(); +} + +void QSGDefaultImageNode::setTextureCoordinatesTransform(TextureCoordinatesTransformMode mode) +{ + if (m_texCoordMode == mode) + return; + m_texCoordMode = mode; + rebuildGeometry(&m_geometry, texture(), m_rect, m_sourceRect, m_texCoordMode); + markDirty(DirtyMaterial); +} + +QSGDefaultImageNode::TextureCoordinatesTransformMode QSGDefaultImageNode::textureCoordinatesTransform() const +{ + return m_texCoordMode; +} + +void QSGDefaultImageNode::setOwnsTexture(bool owns) +{ + m_ownsTexture = owns; +} + +bool QSGDefaultImageNode::ownsTexture() const +{ + return m_ownsTexture; +} + +void QSGDefaultImageNode::rebuildGeometry(QSGGeometry *g, + QSGTexture *texture, + const QRectF &rect, + QRectF sourceRect, + TextureCoordinatesTransformMode texCoordMode) +{ + if (!texture) + return; + + if (!sourceRect.width() || !sourceRect.height()) { + QSize ts = texture->textureSize(); + sourceRect = QRectF(0, 0, ts.width(), ts.height()); + } + + // Maybe transform the texture coordinates + if (texCoordMode.testFlag(QSGImageNode::MirrorHorizontally)) { + float tmp = sourceRect.left(); + sourceRect.setLeft(sourceRect.right()); + sourceRect.setRight(tmp); + } + if (texCoordMode.testFlag(QSGImageNode::MirrorVertically)) { + float tmp = sourceRect.top(); + sourceRect.setTop(sourceRect.bottom()); + sourceRect.setBottom(tmp); + } + + QSGGeometry::updateTexturedRectGeometry(g, rect, texture->convertToNormalizedSourceRect(sourceRect)); +} + +QT_END_NAMESPACE |