159 lines
3 KiB
C++
159 lines
3 KiB
C++
#include "freelayerhelper.h"
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#include <QTableWidget>
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#include <QPushButton>
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FreeLayerHelper::FreeLayerHelper(Layers* layers, bool reverse)
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{
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_table = NULL;
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_selected = -1;
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_layers = layers;
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_reverse = reverse;
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}
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FreeLayerHelper::~FreeLayerHelper()
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{
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}
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void FreeLayerHelper::refreshLayers()
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{
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if (_table)
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{
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int selected = _selected;
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emit tableUpdateNeeded();
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int n = _layers->count();
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if (n == 0)
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{
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_selected = -1;
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}
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if (selected < 0)
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{
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_table->clearSelection();
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emit selectionChanged(-1);
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}
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else
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{
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if (selected >= n)
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{
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selected = n - 1;
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}
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_table->setCurrentCell(selected, 0);
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}
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}
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}
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void FreeLayerHelper::setLayerTable(QTableWidget* table)
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{
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_table = table;
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connect(table, SIGNAL(currentCellChanged(int, int, int, int)), this, SLOT(tableSelectionChanged(int, int)));
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refreshLayers();
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}
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void FreeLayerHelper::setAddButton(QPushButton* button)
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{
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connect(button, SIGNAL(clicked()), this, SLOT(addLayer()));
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}
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void FreeLayerHelper::setDelButton(QPushButton* button)
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{
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connect(button, SIGNAL(clicked()), this, SLOT(deleteLayer()));
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}
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void FreeLayerHelper::setDownButton(QPushButton* button)
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{
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if (_reverse)
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{
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connect(button, SIGNAL(clicked()), this, SLOT(moveLayerDown()));
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}
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else
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{
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connect(button, SIGNAL(clicked()), this, SLOT(moveLayerUp()));
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}
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}
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void FreeLayerHelper::setUpButton(QPushButton* button)
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{
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if (_reverse)
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{
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connect(button, SIGNAL(clicked()), this, SLOT(moveLayerUp()));
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}
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else
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{
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connect(button, SIGNAL(clicked()), this, SLOT(moveLayerDown()));
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}
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}
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void FreeLayerHelper::setEditButton(QPushButton* button)
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{
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connect(button, SIGNAL(clicked()), this, SLOT(startEditing()));
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}
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void FreeLayerHelper::addLayer()
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{
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_selected = _layers->addLayer(NULL);
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emit(layersChanged());
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refreshLayers();
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}
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void FreeLayerHelper::deleteLayer()
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{
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if (_selected >= 0)
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{
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_layers->removeLayer(_selected);
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emit(layersChanged());
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refreshLayers();
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}
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}
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void FreeLayerHelper::moveLayerDown()
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{
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if (_selected > 0)
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{
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_layers->moveLayer(_selected, _selected - 1);
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_selected--;
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emit(layersChanged());
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refreshLayers();
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}
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}
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void FreeLayerHelper::moveLayerUp()
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{
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if (_selected >= 0 && _selected < _layers->count() - 1)
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{
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_layers->moveLayer(_selected, _selected + 1);
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_selected++;
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emit(layersChanged());
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refreshLayers();
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}
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}
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void FreeLayerHelper::startEditing()
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{
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if (_selected >= 0 && _selected < _layers->count())
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{
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emit(editRequired(_selected));
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}
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}
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void FreeLayerHelper::tableSelectionChanged(int row, int)
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{
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int n = _layers->count();
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if (n == 0 or row >= n)
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{
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_selected = -1;
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}
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else
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{
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_selected = _reverse ? n - 1 - row : row;
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}
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emit(selectionChanged(_selected));
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}
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