LimeReport/limereport/items/lrimageitem.cpp

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/***************************************************************************
* This file is part of the Lime Report project *
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* Copyright (C) 2021 by Alexander Arin *
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* arin_a@bk.ru *
* *
** GNU General Public License Usage **
* *
* This library is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
** GNU Lesser General Public License **
* *
* This library is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library. *
* If not, see <http://www.gnu.org/licenses/>. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
****************************************************************************/
#include "lrimageitem.h"
#include "lrdesignelementsfactory.h"
#include "lrglobal.h"
#include "lrdatasourcemanager.h"
#include "lrpagedesignintf.h"
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#include "lrimageitemeditor.h"
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namespace{
const QString xmlTag = "ImageItem";
LimeReport::BaseDesignIntf * createImageItem(QObject* owner, LimeReport::BaseDesignIntf* parent){
return new LimeReport::ImageItem(owner,parent);
}
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bool VARIABLE_IS_NOT_USED registred = LimeReport::DesignElementsFactory::instance().registerCreator(
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xmlTag, LimeReport::ItemAttribs(QObject::tr("Image Item"),"Item"), createImageItem
);
}
namespace LimeReport{
ImageItem::ImageItem(QObject* owner,QGraphicsItem* parent)
:ItemDesignIntf(xmlTag,owner,parent), m_useExternalPainter(false), m_externalPainter(0),
m_autoSize(false), m_scale(true),
m_keepAspectRatio(true), m_center(true), m_format(Binary){}
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BaseDesignIntf *ImageItem::createSameTypeItem(QObject *owner, QGraphicsItem *parent)
{
ImageItem* result = new ImageItem(owner,parent);
result->setExternalPainter(m_externalPainter);
return result;
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}
void ImageItem::loadPictureFromVariant(QVariant& data){
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//TODO: Migrate to QMetaType
if (data.isValid()){
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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if (data.typeId() == QMetaType::QImage){
#else
if (data.type() == QVariant::Image){
#endif
m_picture = data.value<QImage>();
} else {
switch (m_format) {
default:
case Binary:
m_picture.loadFromData(data.toByteArray());
break;
case Hex:
m_picture.loadFromData(QByteArray::fromHex(data.toByteArray()));
break;
case Base64:
m_picture.loadFromData(QByteArray::fromBase64(data.toByteArray()));
break;
}
}
}
}
void ImageItem::preparePopUpMenu(QMenu &menu)
{
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QAction* editAction = menu.addAction(QIcon(":/report/images/edit_pecil2.png"),tr("Edit"));
menu.insertAction(menu.actions().at(0),editAction);
menu.insertSeparator(menu.actions().at(1));
menu.addSeparator();
QAction* action = menu.addAction(tr("Watermark"));
action->setCheckable(true);
action->setChecked(isWatermark());
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}
void ImageItem::processPopUpAction(QAction *action)
{
if (action->text().compare(tr("Watermark")) == 0){
page()->setPropertyToSelectedItems("watermark",action->isChecked());
}
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if (action->text().compare(tr("Edit")) == 0){
this->showEditorDialog();
}
ItemDesignIntf::processPopUpAction(action);
}
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QImage getFileByResourcePath(QString resourcePath) {
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QFileInfo resourceFile(resourcePath);
if (resourceFile.exists())
return QImage(resourcePath);
return QImage();
}
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QImage ImageItem::drawImage() const
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{
if (image().isNull())
return getFileByResourcePath(m_resourcePath);
return image();
}
bool ImageItem::useExternalPainter() const
{
return m_useExternalPainter;
}
void ImageItem::setUseExternalPainter(bool value)
{
if (m_useExternalPainter != value){
m_useExternalPainter = value;
notify("useExternalPainter",!value, value);
update();
}
}
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QWidget *ImageItem::defaultEditor()
{
ImageItemEditor* editor = new ImageItemEditor(this);
editor->setAttribute(Qt::WA_DeleteOnClose);
return editor;
}
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QByteArray ImageItem::imageAsByteArray() const
{
QByteArray result;
QBuffer buffer(&result);
buffer.open(QIODevice::WriteOnly);
m_picture.save(&buffer,"PNG");
return result;
}
void ImageItem::setImageAsByteArray(QByteArray image)
{
QImage value;
value.loadFromData(image);
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setImage(value);
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}
QString ImageItem::fileFilter() const
{
return tr("Images (*.gif *.icns *.ico *.jpeg *.tga *.tiff *.wbmp *.webp *.png *.jpg *.bmp);;All(*.*)");
}
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void ImageItem::updateItemSize(DataSourceManager* dataManager, RenderPass pass, int maxHeight)
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{
if (m_picture.isNull()){
if (!m_datasource.isEmpty() && !m_field.isEmpty()){
IDataSource* ds = dataManager->dataSource(m_datasource);
if (ds) {
QVariant data = ds->data(m_field);
loadPictureFromVariant(data);
}
} else if (!m_resourcePath.isEmpty()){
m_resourcePath = expandUserVariables(m_resourcePath, pass, NoEscapeSymbols, dataManager);
m_resourcePath = expandDataFields(m_resourcePath, NoEscapeSymbols, dataManager);
m_picture = QImage(m_resourcePath);
} else if (!m_variable.isEmpty()){
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//TODO: Migrate to QMetaType
QVariant data = dataManager->variable(m_variable);
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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if (data.typeId() == QMetaType::QString){
#else
if (data.type() == QVariant::String){
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#endif
m_picture = QImage(data.toString());
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} else {
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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if (data.typeId() == QMetaType::QImage){
#else
if (data.type() == QVariant::Image){
#endif
loadPictureFromVariant(data);
}
}
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}
}
if (m_autoSize){
setWidth(m_picture.width());
setHeight(m_picture.height());
}
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BaseDesignIntf::updateItemSize(dataManager, pass, maxHeight);
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}
bool ImageItem::isNeedUpdateSize(RenderPass) const
{
return m_picture.isNull() || m_autoSize;
}
QString ImageItem::resourcePath() const
{
return m_resourcePath;
}
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qreal ImageItem::minHeight() const{
if (!m_picture.isNull() && autoSize())
{
return m_picture.height();
} else {
return 0;
}
}
void ImageItem::setVariable(const QString& content)
{
if (m_variable!=content){
QString oldValue = m_variable;
m_variable=content;
update();
notify("variable", oldValue, m_variable);
}
}
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bool ImageItem::center() const
{
return m_center;
}
void ImageItem::setCenter(bool center)
{
if (m_center != center){
m_center = center;
update();
notify("center",!center,center);
}
}
bool ImageItem::keepAspectRatio() const
{
return m_keepAspectRatio;
}
void ImageItem::setKeepAspectRatio(bool keepAspectRatio)
{
if (m_keepAspectRatio != keepAspectRatio){
m_keepAspectRatio = keepAspectRatio;
update();
notify("keepAspectRatio",!keepAspectRatio,keepAspectRatio);
}
}
bool ImageItem::scale() const
{
return m_scale;
}
void ImageItem::setScale(bool scale)
{
if (m_scale != scale){
m_scale = scale;
update();
notify("scale",!scale,scale);
}
}
bool ImageItem::autoSize() const
{
return m_autoSize;
}
void ImageItem::setAutoSize(bool autoSize)
{
if (m_autoSize != autoSize){
m_autoSize = autoSize;
if (m_autoSize && !m_picture.isNull()){
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setWidth(drawImage().width());
setHeight(drawImage().height());
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setPossibleResizeDirectionFlags(Fixed);
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} else {
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setPossibleResizeDirectionFlags(AllDirections);
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}
update();
notify("autoSize",!autoSize,autoSize);
}
}
QString ImageItem::field() const
{
return m_field;
}
void ImageItem::setField(const QString &field)
{
if (m_field != field){
QString oldValue = m_field;
m_field = field;
update();
notify("field",oldValue,field);
}
}
QString ImageItem::datasource() const
{
return m_datasource;
}
void ImageItem::setDatasource(const QString &datasource)
{
if (m_datasource != datasource){
QString oldValue = m_datasource;
m_datasource = datasource;
update();
notify("datasource",oldValue,datasource);
}
}
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void ImageItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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painter->save();
if (isSelected()) painter->setOpacity(Const::SELECTION_OPACITY);
else painter->setOpacity(qreal(opacity())/100);
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QPointF point = rect().topLeft();
QImage img;
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if (m_scale && !drawImage().isNull()){
img = drawImage().scaled(rect().width(), rect().height(), keepAspectRatio() ? Qt::KeepAspectRatio : Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
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} else {
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img = drawImage();
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}
qreal shiftHeight = rect().height() - img.height();
qreal shiftWidth = rect().width() - img.width();
if (m_center){
if (shiftHeight<0 || shiftWidth<0){
qreal cutX = 0;
qreal cutY = 0;
qreal cutWidth = img.width();
qreal cutHeigth = img.height();
if (shiftWidth > 0){
point.setX(point.x()+shiftWidth/2);
} else {
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cutX = fabs(shiftWidth/2);
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cutWidth += shiftWidth;
}
if (shiftHeight > 0){
point.setY(point.x()+shiftHeight/2);
} else {
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cutY = fabs(shiftHeight/2);
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cutHeigth += shiftHeight;
}
img = img.copy(cutX,cutY,cutWidth,cutHeigth);
} else {
point.setX(point.x()+shiftWidth/2);
point.setY(point.y()+shiftHeight/2);
}
}
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if (img.isNull() && itemMode() == DesignMode){
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QString text;
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painter->setFont(transformToSceneFont(QFont("Arial",10)));
painter->setPen(Qt::black);
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if (!datasource().isEmpty() && !field().isEmpty())
text = datasource()+"."+field();
else if (m_useExternalPainter) text = tr("Ext."); else text = tr("Image");
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painter->drawText(rect().adjusted(4,4,-4,-4), Qt::AlignCenter, text );
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} else {
if (m_externalPainter && m_useExternalPainter)
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m_externalPainter->paintByExternalPainter(this->patternName(), painter, option);
else
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painter->drawImage(point,img);
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}
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ItemDesignIntf::paint(painter,option,widget);
painter->restore();
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}
void ImageItem::setImage(QImage value)
{
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if (m_picture != value){
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QImage oldValue = m_picture;
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m_picture = value;
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if (m_autoSize){
setWidth(m_picture.width());
setHeight(m_picture.height());
}
update();
notify("image",oldValue,value);
}
}
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QImage ImageItem::image() const{
return m_picture;
}
void ImageItem::setResourcePath(const QString &value){
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if (m_resourcePath != value){
QString oldValue = m_resourcePath;
m_resourcePath = value;
update();
notify("resourcePath", oldValue, value);
}
}
ImageItem::Format ImageItem::format() const
{
return m_format;
}
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void ImageItem::setFormat(Format format)
{
if (m_format!=format){
Format oldValue = m_format;
m_format=format;
update();
notify("format",oldValue,format);
}
}
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}
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bool LimeReport::ImageItem::isEmpty() const
{
return drawImage().isNull();
}