128 lines
4.3 KiB
C++
128 lines
4.3 KiB
C++
#include "mixerslist.h"
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MixersList::MixersList(QWidget *parent, bool expo) :
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QListWidget(parent),
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expo(expo)
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{
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setFont(QFont("Courier New",12));
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setContextMenuPolicy(Qt::CustomContextMenu);
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setSelectionMode(QAbstractItemView::SingleSelection);
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setDragEnabled(true);
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setAcceptDrops(true);
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setDropIndicatorShown(true);
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setItemDelegate(new MixersDelegate(parent)); //set custom paint handler
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}
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void MixersList::keyPressEvent(QKeyEvent *event)
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{
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emit keyWasPressed(event);
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}
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/**
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@brief Override to give us different mime type for mixers and inputs
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*/
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QStringList MixersList::mimeTypes () const
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{
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QStringList types;
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if (expo) types << "application/x-companion-expo-item";
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else types << "application/x-companion-mix-item";
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return types;
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}
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bool MixersList::dropMimeData( int index, const QMimeData * data, Qt::DropAction action )
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{
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// qDebug() << "MixersList::dropMimeData() index:" << index << "formats" << data->formats();
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QByteArray dropData = data->data(expo ? "application/x-companion-expo-item" : "application/x-companion-mix-item");
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if (dropData.isNull() ) return false;
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QDataStream stream(&dropData, QIODevice::ReadOnly);
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QByteArray qba;
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while (!stream.atEnd()) {
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int r,c;
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QMap<int, QVariant> v;
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stream >> r >> c >> v;
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QList<QVariant> lsVars;
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lsVars = v.values();
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qba.append(lsVars.at(1).toByteArray().mid(1));
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// qDebug() << "MixersList::dropMimeData() added" << lsVars.count() << "items, data:" << lsVars;
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}
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if(qba.length()>0) {
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QMimeData *mimeData = new QMimeData;
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mimeData->setData(expo ? "application/x-companion-expo" : "application/x-companion-mix", qba);
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emit mimeDropped(index, mimeData, action);
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delete mimeData; //is this correct? is mimeData freed elswere??
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}
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return true;
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}
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/**
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@brief Paints our HTML formated list item text
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*/
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void MixersDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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QStyleOptionViewItemV4 options = option;
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initStyleOption(&options, index);
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painter->save();
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//setup html document
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QTextDocument doc;
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SetupDocument(doc, options);
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options.text = "";
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options.widget->style()->drawControl(QStyle::CE_ItemViewItem, &options, painter);
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if ( index.model()->data(index, GroupHeaderRole).toInt() > 0 ) {
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//paint with added space
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painter->translate(options.rect.left(), options.rect.top() + MIX_ROW_HEIGHT_INCREASE);
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QRect clip(0, 0, options.rect.width(), options.rect.height() - MIX_ROW_HEIGHT_INCREASE);
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doc.drawContents(painter, clip);
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}
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else {
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painter->translate(options.rect.left(), options.rect.top());
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QRect clip(0, 0, options.rect.width(), options.rect.height());
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doc.drawContents(painter, clip);
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}
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painter->restore();
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}
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/**
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@brief Returns needed size for our HTML formated list item text
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*/
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QSize MixersDelegate::sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const
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{
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QStyleOptionViewItemV4 options = option;
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initStyleOption(&options, index);
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//setup html document
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QTextDocument doc;
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SetupDocument(doc, options);
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//qDebug() << "MixersDelegate::sizeHint() UserRole-> " << index.model()->data(index, Qt::UserRole + 2);
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int height = doc.size().height();
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if ( index.model()->data(index, Qt::UserRole + 2).toInt() > 0 ) {
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//qDebug() << "MixersDelegate::sizeHint() detected channel head";
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height = doc.size().height() + MIX_ROW_HEIGHT_INCREASE;
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}
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//qDebug() << "MixersDelegate::sizeHint() options.rect " << options.rect;
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//qDebug() << "MixersDelegate::sizeHint() result " << QSize(doc.idealWidth(), height) << options.rect.width();
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return QSize(doc.idealWidth(), height);
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}
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void MixersDelegate::SetupDocument(QTextDocument & doc, const QStyleOptionViewItemV4 & options) const
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{
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//setup html document
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doc.setHtml(options.text);
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doc.setDefaultFont(options.font);
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//minimize margins (default margins look ugly)
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QTextFrame *tf = doc.rootFrame();
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QTextFrameFormat tff = tf->frameFormat();
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tff.setMargin(0);
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tf->setFrameFormat(tff);
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}
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