mirror of
https://github.com/juce-framework/JUCE.git
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503 lines
16 KiB
C++
503 lines
16 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-11 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#include "../../../core/juce_StandardHeader.h"
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BEGIN_JUCE_NAMESPACE
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#include "juce_TableListBox.h"
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#include "../../../maths/juce_BigInteger.h"
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#include "../../../maths/juce_Random.h"
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#include "../mouse/juce_DragAndDropContainer.h"
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#include "../../graphics/imaging/juce_Image.h"
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#include "../../../text/juce_LocalisedStrings.h"
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//==============================================================================
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class TableListRowComp : public Component,
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public TooltipClient
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{
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public:
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TableListRowComp (TableListBox& owner_)
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: owner (owner_), row (-1), isSelected (false)
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{
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}
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void paint (Graphics& g)
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{
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TableListBoxModel* const model = owner.getModel();
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if (model != nullptr)
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{
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model->paintRowBackground (g, row, getWidth(), getHeight(), isSelected);
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const TableHeaderComponent& header = owner.getHeader();
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const int numColumns = header.getNumColumns (true);
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for (int i = 0; i < numColumns; ++i)
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{
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if (columnComponents[i] == nullptr)
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{
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const int columnId = header.getColumnIdOfIndex (i, true);
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const Rectangle<int> columnRect (header.getColumnPosition(i).withHeight (getHeight()));
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Graphics::ScopedSaveState ss (g);
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g.reduceClipRegion (columnRect);
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g.setOrigin (columnRect.getX(), 0);
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model->paintCell (g, row, columnId, columnRect.getWidth(), columnRect.getHeight(), isSelected);
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}
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}
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}
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}
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void update (const int newRow, const bool isNowSelected)
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{
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jassert (newRow >= 0);
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if (newRow != row || isNowSelected != isSelected)
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{
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row = newRow;
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isSelected = isNowSelected;
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repaint();
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}
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TableListBoxModel* const model = owner.getModel();
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if (model != nullptr && row < owner.getNumRows())
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{
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const Identifier columnProperty ("_tableColumnId");
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const int numColumns = owner.getHeader().getNumColumns (true);
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for (int i = 0; i < numColumns; ++i)
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{
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const int columnId = owner.getHeader().getColumnIdOfIndex (i, true);
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Component* comp = columnComponents[i];
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if (comp != nullptr && columnId != (int) comp->getProperties() [columnProperty])
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{
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columnComponents.set (i, nullptr);
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comp = nullptr;
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}
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comp = model->refreshComponentForCell (row, columnId, isSelected, comp);
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columnComponents.set (i, comp, false);
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if (comp != nullptr)
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{
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comp->getProperties().set (columnProperty, columnId);
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addAndMakeVisible (comp);
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resizeCustomComp (i);
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}
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}
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columnComponents.removeRange (numColumns, columnComponents.size());
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}
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else
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{
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columnComponents.clear();
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}
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}
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void resized()
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{
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for (int i = columnComponents.size(); --i >= 0;)
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resizeCustomComp (i);
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}
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void resizeCustomComp (const int index)
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{
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Component* const c = columnComponents.getUnchecked (index);
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if (c != nullptr)
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c->setBounds (owner.getHeader().getColumnPosition (index)
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.withY (0).withHeight (getHeight()));
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}
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void mouseDown (const MouseEvent& e)
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{
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isDragging = false;
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selectRowOnMouseUp = false;
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if (isEnabled())
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{
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if (! isSelected)
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{
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owner.selectRowsBasedOnModifierKeys (row, e.mods, false);
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const int columnId = owner.getHeader().getColumnIdAtX (e.x);
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if (columnId != 0 && owner.getModel() != nullptr)
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owner.getModel()->cellClicked (row, columnId, e);
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}
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else
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{
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selectRowOnMouseUp = true;
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}
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}
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}
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void mouseDrag (const MouseEvent& e)
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{
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if (isEnabled() && owner.getModel() != nullptr && ! (e.mouseWasClicked() || isDragging))
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{
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const SparseSet<int> selectedRows (owner.getSelectedRows());
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if (selectedRows.size() > 0)
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{
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const String dragDescription (owner.getModel()->getDragSourceDescription (selectedRows));
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if (dragDescription.isNotEmpty())
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{
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isDragging = true;
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owner.startDragAndDrop (e, dragDescription);
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}
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}
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}
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}
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void mouseUp (const MouseEvent& e)
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{
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if (selectRowOnMouseUp && e.mouseWasClicked() && isEnabled())
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{
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owner.selectRowsBasedOnModifierKeys (row, e.mods, true);
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const int columnId = owner.getHeader().getColumnIdAtX (e.x);
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if (columnId != 0 && owner.getModel() != nullptr)
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owner.getModel()->cellClicked (row, columnId, e);
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}
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}
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void mouseDoubleClick (const MouseEvent& e)
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{
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const int columnId = owner.getHeader().getColumnIdAtX (e.x);
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if (columnId != 0 && owner.getModel() != nullptr)
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owner.getModel()->cellDoubleClicked (row, columnId, e);
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}
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const String getTooltip()
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{
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const int columnId = owner.getHeader().getColumnIdAtX (getMouseXYRelative().getX());
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if (columnId != 0 && owner.getModel() != nullptr)
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return owner.getModel()->getCellTooltip (row, columnId);
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return String::empty;
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}
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Component* findChildComponentForColumn (const int columnId) const
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{
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return columnComponents [owner.getHeader().getIndexOfColumnId (columnId, true)];
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}
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private:
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TableListBox& owner;
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OwnedArray<Component> columnComponents;
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int row;
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bool isSelected, isDragging, selectRowOnMouseUp;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TableListRowComp);
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};
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//==============================================================================
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class TableListBoxHeader : public TableHeaderComponent
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{
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public:
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TableListBoxHeader (TableListBox& owner_)
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: owner (owner_)
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{
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}
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void addMenuItems (PopupMenu& menu, int columnIdClicked)
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{
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if (owner.isAutoSizeMenuOptionShown())
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{
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menu.addItem (autoSizeColumnId, TRANS("Auto-size this column"), columnIdClicked != 0);
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menu.addItem (autoSizeAllId, TRANS("Auto-size all columns"), owner.getHeader().getNumColumns (true) > 0);
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menu.addSeparator();
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}
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TableHeaderComponent::addMenuItems (menu, columnIdClicked);
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}
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void reactToMenuItem (int menuReturnId, int columnIdClicked)
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{
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switch (menuReturnId)
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{
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case autoSizeColumnId: owner.autoSizeColumn (columnIdClicked); break;
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case autoSizeAllId: owner.autoSizeAllColumns(); break;
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default: TableHeaderComponent::reactToMenuItem (menuReturnId, columnIdClicked); break;
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}
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}
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private:
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TableListBox& owner;
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enum { autoSizeColumnId = 0xf836743, autoSizeAllId = 0xf836744 };
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TableListBoxHeader);
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};
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//==============================================================================
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TableListBox::TableListBox (const String& name, TableListBoxModel* const model_)
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: ListBox (name, nullptr),
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header (nullptr),
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model (model_),
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autoSizeOptionsShown (true)
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{
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ListBox::model = this;
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setHeader (new TableListBoxHeader (*this));
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}
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TableListBox::~TableListBox()
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{
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header = nullptr;
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}
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void TableListBox::setModel (TableListBoxModel* const newModel)
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{
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if (model != newModel)
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{
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model = newModel;
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updateContent();
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}
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}
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void TableListBox::setHeader (TableHeaderComponent* newHeader)
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{
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jassert (newHeader != nullptr); // you need to supply a real header for a table!
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Rectangle<int> newBounds (0, 0, 100, 28);
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if (header != nullptr)
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newBounds = header->getBounds();
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header = newHeader;
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header->setBounds (newBounds);
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setHeaderComponent (header);
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header->addListener (this);
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}
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int TableListBox::getHeaderHeight() const
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{
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return header->getHeight();
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}
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void TableListBox::setHeaderHeight (const int newHeight)
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{
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header->setSize (header->getWidth(), newHeight);
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resized();
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}
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void TableListBox::autoSizeColumn (const int columnId)
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{
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const int width = model != nullptr ? model->getColumnAutoSizeWidth (columnId) : 0;
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if (width > 0)
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header->setColumnWidth (columnId, width);
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}
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void TableListBox::autoSizeAllColumns()
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{
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for (int i = 0; i < header->getNumColumns (true); ++i)
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autoSizeColumn (header->getColumnIdOfIndex (i, true));
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}
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void TableListBox::setAutoSizeMenuOptionShown (const bool shouldBeShown)
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{
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autoSizeOptionsShown = shouldBeShown;
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}
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bool TableListBox::isAutoSizeMenuOptionShown() const
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{
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return autoSizeOptionsShown;
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}
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const Rectangle<int> TableListBox::getCellPosition (const int columnId, const int rowNumber,
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const bool relativeToComponentTopLeft) const
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{
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Rectangle<int> headerCell (header->getColumnPosition (header->getIndexOfColumnId (columnId, true)));
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if (relativeToComponentTopLeft)
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headerCell.translate (header->getX(), 0);
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return getRowPosition (rowNumber, relativeToComponentTopLeft)
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.withX (headerCell.getX())
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.withWidth (headerCell.getWidth());
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}
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Component* TableListBox::getCellComponent (int columnId, int rowNumber) const
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{
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TableListRowComp* const rowComp = dynamic_cast <TableListRowComp*> (getComponentForRowNumber (rowNumber));
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return rowComp != nullptr ? rowComp->findChildComponentForColumn (columnId) : 0;
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}
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void TableListBox::scrollToEnsureColumnIsOnscreen (const int columnId)
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{
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ScrollBar* const scrollbar = getHorizontalScrollBar();
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if (scrollbar != nullptr)
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{
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const Rectangle<int> pos (header->getColumnPosition (header->getIndexOfColumnId (columnId, true)));
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double x = scrollbar->getCurrentRangeStart();
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const double w = scrollbar->getCurrentRangeSize();
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if (pos.getX() < x)
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x = pos.getX();
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else if (pos.getRight() > x + w)
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x += jmax (0.0, pos.getRight() - (x + w));
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scrollbar->setCurrentRangeStart (x);
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}
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}
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int TableListBox::getNumRows()
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{
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return model != nullptr ? model->getNumRows() : 0;
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}
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void TableListBox::paintListBoxItem (int, Graphics&, int, int, bool)
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{
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}
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Component* TableListBox::refreshComponentForRow (int rowNumber, bool isRowSelected_, Component* existingComponentToUpdate)
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{
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if (existingComponentToUpdate == nullptr)
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existingComponentToUpdate = new TableListRowComp (*this);
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static_cast <TableListRowComp*> (existingComponentToUpdate)->update (rowNumber, isRowSelected_);
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return existingComponentToUpdate;
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}
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void TableListBox::selectedRowsChanged (int row)
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{
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if (model != nullptr)
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model->selectedRowsChanged (row);
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}
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void TableListBox::deleteKeyPressed (int row)
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{
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if (model != nullptr)
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model->deleteKeyPressed (row);
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}
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void TableListBox::returnKeyPressed (int row)
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{
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if (model != nullptr)
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model->returnKeyPressed (row);
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}
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void TableListBox::backgroundClicked()
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{
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if (model != nullptr)
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model->backgroundClicked();
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}
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void TableListBox::listWasScrolled()
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{
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if (model != nullptr)
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model->listWasScrolled();
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}
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void TableListBox::tableColumnsChanged (TableHeaderComponent*)
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{
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setMinimumContentWidth (header->getTotalWidth());
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repaint();
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updateColumnComponents();
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}
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void TableListBox::tableColumnsResized (TableHeaderComponent*)
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{
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setMinimumContentWidth (header->getTotalWidth());
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repaint();
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updateColumnComponents();
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}
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void TableListBox::tableSortOrderChanged (TableHeaderComponent*)
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{
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if (model != nullptr)
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model->sortOrderChanged (header->getSortColumnId(),
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header->isSortedForwards());
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}
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void TableListBox::tableColumnDraggingChanged (TableHeaderComponent*, int columnIdNowBeingDragged_)
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{
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columnIdNowBeingDragged = columnIdNowBeingDragged_;
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repaint();
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}
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void TableListBox::resized()
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{
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ListBox::resized();
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header->resizeAllColumnsToFit (getVisibleContentWidth());
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setMinimumContentWidth (header->getTotalWidth());
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}
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void TableListBox::updateColumnComponents() const
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{
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const int firstRow = getRowContainingPosition (0, 0);
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for (int i = firstRow + getNumRowsOnScreen() + 2; --i >= firstRow;)
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{
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TableListRowComp* const rowComp = dynamic_cast <TableListRowComp*> (getComponentForRowNumber (i));
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if (rowComp != nullptr)
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rowComp->resized();
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}
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}
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//==============================================================================
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void TableListBoxModel::cellClicked (int, int, const MouseEvent&) {}
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void TableListBoxModel::cellDoubleClicked (int, int, const MouseEvent&) {}
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void TableListBoxModel::backgroundClicked() {}
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void TableListBoxModel::sortOrderChanged (int, const bool) {}
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int TableListBoxModel::getColumnAutoSizeWidth (int) { return 0; }
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void TableListBoxModel::selectedRowsChanged (int) {}
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void TableListBoxModel::deleteKeyPressed (int) {}
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void TableListBoxModel::returnKeyPressed (int) {}
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void TableListBoxModel::listWasScrolled() {}
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const String TableListBoxModel::getCellTooltip (int /*rowNumber*/, int /*columnId*/) { return String::empty; }
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const String TableListBoxModel::getDragSourceDescription (const SparseSet<int>&) { return String::empty; }
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Component* TableListBoxModel::refreshComponentForCell (int, int, bool, Component* existingComponentToUpdate)
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{
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(void) existingComponentToUpdate;
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jassert (existingComponentToUpdate == nullptr); // indicates a failure in the code the recycles the components
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return 0;
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}
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END_JUCE_NAMESPACE
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