4 * This file is part of CameraPlus.
6 * Copyright (C) 2012-2013 Mohammed Sameer <msameer@foolab.org>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "viewfinder.h"
25 #include "cameraconfig.h"
26 #include "qtcamviewfinderrenderer.h"
27 #include <QDeclarativeInfo>
29 #include "qtcamdevice.h"
31 Viewfinder::Viewfinder(QDeclarativeItem *parent) :
32 QDeclarativeItem(parent),
38 setFlag(QGraphicsItem::ItemHasNoContents, false);
41 Viewfinder::~Viewfinder() {
45 bool Viewfinder::isRenderingEnabled() const {
49 void Viewfinder::setRenderingEnabled(bool enabled) {
50 if (m_enabled != enabled) {
52 emit renderingEnabledChanged();
56 Camera *Viewfinder::camera() const {
60 void Viewfinder::setCamera(Camera *camera) {
61 if (m_cam == camera) {
65 if (m_cam && m_cam != camera) {
66 qmlInfo(this) << "Cannot reset Camera";
71 qmlInfo(this) << "Camera cannot be empty";
76 QObject::disconnect(m_cam, SIGNAL(deviceChanged()), this, SLOT(deviceChanged()));
82 QObject::connect(m_cam, SIGNAL(deviceChanged()), this, SLOT(deviceChanged()));
85 if (isComponentComplete()) {
92 CameraConfig *Viewfinder::cameraConfig() const {
96 void Viewfinder::setCameraConfig(CameraConfig *config) {
97 if (m_conf && m_conf != config) {
98 qmlInfo(this) << "Cannot reset CameraConfig";
103 qmlInfo(this) << "CameraConfig cannot be empty";
107 if (m_conf == config) {
113 if (isComponentComplete()) {
117 emit cameraConfigChanged();
120 void Viewfinder::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
126 painter->fillRect(boundingRect(), Qt::black);
128 if (!m_renderer || !m_enabled) {
132 m_renderer->paint(painter);
135 QRectF Viewfinder::renderArea() const {
136 return m_renderer ? m_renderer->renderArea() : QRectF();
139 QSizeF Viewfinder::videoResolution() const {
140 return m_renderer ? m_renderer->videoResolution() : QSizeF();
143 void Viewfinder::geometryChanged(const QRectF& newGeometry, const QRectF& oldGeometry) {
144 QDeclarativeItem::geometryChanged(newGeometry, oldGeometry);
147 m_renderer->resize(newGeometry.size());
151 void Viewfinder::componentComplete() {
153 qmlInfo(this) << "Camera not set";
158 qmlInfo(this) << "CameraConfig not set";
162 m_renderer = QtCamViewfinderRenderer::create(m_conf->config(), this);
164 qmlInfo(this) << "Failed to create viewfinder renderer";
168 m_renderer->resize(QSizeF(width(), height()));
169 QObject::connect(m_renderer, SIGNAL(updateRequested()), this, SLOT(updateRequested()));
170 QObject::connect(m_renderer, SIGNAL(renderAreaChanged()), this, SIGNAL(renderAreaChanged()));
171 QObject::connect(m_renderer, SIGNAL(videoResolutionChanged()), this, SIGNAL(videoResolutionChanged()));
174 void Viewfinder::deviceChanged() {
176 qmlInfo(this) << "No renderer";
180 QtCamDevice *dev = m_cam->device();
183 dev->setViewfinder(this);
186 emit renderAreaChanged();
187 emit videoResolutionChanged();
190 GstElement *Viewfinder::sinkElement() {
191 return m_renderer ? m_renderer->sinkElement() : 0;
194 bool Viewfinder::setDevice(QtCamDevice *device) {
200 void Viewfinder::stop() {
206 void Viewfinder::updateRequested() {