mirror of
https://github.com/RetroShare/RetroShare.git
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126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
/*******************************************************************************
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* retroshare-gui/src/gui/gxschannels/GxsChannelPostThumbnail.h *
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* *
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* Copyright 2020 by Retroshare Team <retroshare.project@gmail.com> *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Affero General Public License as *
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* published by the Free Software Foundation, either version 3 of the *
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* License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Affero General Public License for more details. *
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* *
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* You should have received a copy of the GNU Affero General Public License *
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* along with this program. If not, see <https://www.gnu.org/licenses/>. *
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* *
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*******************************************************************************/
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#pragma once
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#include <string>
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#include <QWidget>
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#include <QLabel>
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#include <QLayout>
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#include "retroshare/rsgxschannels.h"
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#include "retroshare/rsidentity.h"
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#include "gui/gxs/GxsIdDetails.h"
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#include "gui/common/FilesDefs.h"
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// Class to paint the thumbnails with title
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class ChannelPostThumbnailView: public QWidget
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{
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Q_OBJECT
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public:
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// This variable determines the zoom factor on the text below thumbnails. 2.0 is mostly correct for all screen.
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static constexpr float THUMBNAIL_OVERSAMPLE_FACTOR = 2.0;
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// Size of thumbnails as a function of the height of the font. An aspect ratio of 3/4 is good.
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static const int THUMBNAIL_W = 4;
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static const int THUMBNAIL_H = 6;
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static constexpr char *CHAN_DEFAULT_IMAGE = ":images/thumb-default-video.png";
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virtual ~ChannelPostThumbnailView()
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{
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delete lb;
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delete lt;
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}
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ChannelPostThumbnailView(QWidget *parent=NULL): QWidget(parent)
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{
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init(FilesDefs::getPixmapFromQtResourcePath(CHAN_DEFAULT_IMAGE), QString("New post"),false);
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}
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ChannelPostThumbnailView(const RsGxsChannelPost& post,QWidget *parent=NULL)
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: QWidget(parent)
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{
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// now fill the data
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QPixmap thumbnail;
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if(post.mThumbnail.mSize > 0)
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GxsIdDetails::loadPixmapFromData(post.mThumbnail.mData, post.mThumbnail.mSize, thumbnail,GxsIdDetails::ORIGINAL);
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else if(post.mMeta.mPublishTs > 0) // this is for testing that the post is not an empty post (happens at the end of the last row)
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thumbnail = FilesDefs::getPixmapFromQtResourcePath(CHAN_DEFAULT_IMAGE);
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init(thumbnail, QString::fromUtf8(post.mMeta.mMsgName.c_str()), IS_MSG_UNREAD(post.mMeta.mMsgStatus) || IS_MSG_NEW(post.mMeta.mMsgStatus) );
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}
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void init(const QPixmap& thumbnail,const QString& msg,bool is_msg_new)
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{
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QVBoxLayout *layout = new QVBoxLayout(this);
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lb = new QLabel(this);
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lb->setScaledContents(true);
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layout->addWidget(lb);
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lt = new QLabel(this);
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layout->addWidget(lt);
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setLayout(layout);
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setSizePolicy(QSizePolicy::Maximum,QSizePolicy::Maximum);
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QFontMetricsF fm(font());
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int W = THUMBNAIL_OVERSAMPLE_FACTOR * THUMBNAIL_W * fm.height() ;
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int H = THUMBNAIL_OVERSAMPLE_FACTOR * THUMBNAIL_H * fm.height() ;
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lb->setFixedSize(W,H);
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lb->setPixmap(thumbnail);
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lt->setText(msg);
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QFont font = lt->font();
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if(is_msg_new)
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{
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font.setBold(true);
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lt->setFont(font);
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}
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lt->setMaximumWidth(W);
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lt->setWordWrap(true);
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adjustSize();
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update();
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}
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void setPixmap(const QPixmap& p) { lb->setPixmap(p); }
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void setText(const QString& s) { lt->setText(s); }
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private:
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QLabel *lb;
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QLabel *lt;
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};
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