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PatternWidget.cpp
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PatternWidget.cpp
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#include "PatternWidget.h"
#include "ui_PatternWidget.h"
PatternWidget::PatternWidget(QWidget* a_parent)
: QWidget(a_parent)
, m_ui(new Ui::PatternWidget)
{
m_ui->setupUi(this);
m_ui->grpPianoRoll->setResizeAreaSize(Properties::PianoRoll::ResizeAreaSize);
m_ui->grpPianoRoll->setTransform( QTransform::fromScale(m_scales.value(), 1) );
m_ui->grpPianoRoll->setResizeModes(sgv::Right);
connect(m_ui->grpPianoRoll, &sgv::SignalerGraphicsView::zoomIn , this, &PatternWidget::onZoomIn);
connect(m_ui->grpPianoRoll, &sgv::SignalerGraphicsView::zoomOut , this, &PatternWidget::onZoomOut);
connect(m_ui->grpPianoRoll, &sgv::SignalerGraphicsView::createItem, this, &PatternWidget::onCreatePatternItem);
connect(m_ui->grpPianoRoll, &sgv::SignalerGraphicsView::copyItem , this, &PatternWidget::onCopyPatternItem);
connect(m_ui->grpPianoRoll, &sgv::SignalerGraphicsView::deleteItem, this, &PatternWidget::onDeletePatternItem);
connect(m_ui->grpPianoRoll, &sgv::SignalerGraphicsView::resizeItem, this, &PatternWidget::onResizePatternItem);
connect(m_ui->grpPianoRoll, &PatternView::selectionChanged, this, &PatternWidget::selectionChanged);
connect(m_ui->grpPianoRoll, &PatternView::pasteRequested , this, &PatternWidget::onPastePatternItems);
}
void PatternWidget::init(const LibraryModelPtr& a_model, const PatternScenePtr& a_scene, const ClipboardPtr& a_clipboard)
{
Q_ASSERT( m_library_model.isNull() && !a_model .isNull() );
Q_ASSERT( m_scene .isNull() && !a_scene .isNull() );
Q_ASSERT( m_clipboard .isNull() && !a_clipboard.isNull() );
m_library_model = a_model;
m_scene = a_scene;
m_clipboard = a_clipboard;
m_ui->grpPianoRoll->setScene( m_scene->get() );
m_ui->grpPianoRoll->resetSelection();
}
void PatternWidget::reset()
{
if (!m_scene.isNull())
m_scene->reset();
resetSelection();
}
void PatternWidget::resetSelection()
{
m_ui->grpPianoRoll->resetSelection();
}
void PatternWidget::onSizeChanged(int a_size)
{
m_scene->setSize(a_size);
}
void PatternWidget::onInstrumentSelected(int a_index)
{
m_index = a_index;
}
void PatternWidget::onInstrumentDeleted(const QModelIndex& a_parent, int a_first, int a_last)
{
Q_ASSERT(!a_parent.isValid());
for (int index = a_first; index <= a_last; index++)
{
auto deleted_library_item = m_library_model->item(index);
auto items = m_scene->items();
for (auto item: items)
{
if (item->isSameType(deleted_library_item))
m_scene->deleteItem(item);
}
}
}
void PatternWidget::onInstrumentChanged(const QModelIndex& a_top_left, const QModelIndex& a_bottom_right, const QVector<int>& a_roles)
{
Q_UNUSED(a_roles);
if (a_top_left.column() > LibraryModel::Column::Color ||
a_bottom_right.column() < LibraryModel::Column::Color )
return;
for (int index = a_top_left.row(); index <= a_bottom_right.row(); index++)
{
auto changed_library_item = m_library_model->item(index);
auto items = m_scene->items();
for (auto item: items)
{
if (item->isSameType(changed_library_item))
item->update();
}
}
}
void PatternWidget::onZoomIn()
{
if (m_scales.prev())
m_ui->grpPianoRoll->setTransform( QTransform::fromScale(m_scales.value(), 1) );
}
void PatternWidget::onZoomOut()
{
if (m_scales.next())
m_ui->grpPianoRoll->setTransform( QTransform::fromScale(m_scales.value(), 1) );
}
void PatternWidget::onCreatePatternItem(const QPointF& a_position)
{
if (m_index == WrongInstrumentIndex)
return;
PatternItem* item = new PatternItem(a_position.toPoint(), m_library_model->item(m_index));
m_scene->addItem(item);
}
void PatternWidget::onCopyPatternItem(const QPointF& a_position)
{
auto items = m_scene->selectedItems();
if (items.size() != 1)
{
onCreatePatternItem(a_position);
return;
}
PatternItem* source = items[0];
PatternItem* item = new PatternItem(a_position.toPoint(), source->libraryItem());
item->setSize(source->size());
m_scene->addItem(item);
}
void PatternWidget::onPastePatternItems(const QPointF& a_position)
{
if (!m_clipboard->isValid())
return;
const Frame start_frame = a_position.x() / Properties::Core::FrameWidth;
for (int i = 0; i < m_clipboard->count(); i++)
{
const ClipboardItem& source = m_clipboard->item(i);
PatternItem* item = new PatternItem(
source.key(),
source.frame() + start_frame,
source.size(),
source.libraryItem()
);
m_scene->addItem(item);
}
}
void PatternWidget::onDeletePatternItem(QGraphicsItem* a_item)
{
PatternItem* item = dynamic_cast<PatternItem*>(a_item);
if (item == nullptr)
return;
m_scene->deleteItem(item);
}
void PatternWidget::onResizePatternItem(QGraphicsItem* a_item, sgv::ResizeMode a_mode, const QRectF& a_initial_size, QPointF a_size_delta)
{
Q_UNUSED(a_mode);
PatternItem* item = dynamic_cast<PatternItem*>(a_item);
if (item == nullptr)
return;
item->setWidth( static_cast<int>(a_initial_size.width()+a_size_delta.x()) );
}