Chris Galvan
117 lines
4.1 KiB
C++
117 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) Contributors to the Open 3D Engine Project.
|
|
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0 OR MIT
|
|
*
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#if !defined(Q_MOC_RUN)
|
|
#include <AzCore/Memory/SystemAllocator.h>
|
|
#include <AzQtComponents/AzQtComponentsAPI.h>
|
|
#include <AzQtComponents/Components/Widgets/TableView.h>
|
|
|
|
#include <QTreeWidget>
|
|
#endif
|
|
|
|
namespace AzQtComponents
|
|
{
|
|
class Style;
|
|
class TreeViewWatcher;
|
|
|
|
class AZ_QT_COMPONENTS_API TreeView
|
|
{
|
|
public:
|
|
struct Config
|
|
{
|
|
int branchLineWidth;
|
|
QColor branchLineColor;
|
|
};
|
|
|
|
static Config loadConfig(QSettings& settings);
|
|
|
|
static Config defaultConfig();
|
|
|
|
static void setBranchLinesEnabled(QTreeView* widget, bool enabled);
|
|
static bool isBranchLinesEnabled(const QTreeView* widget);
|
|
|
|
private:
|
|
static constexpr const auto IndentationWidth = 20;
|
|
|
|
friend class Style;
|
|
|
|
AZ_PUSH_DISABLE_WARNING(4251, "-Wunknown-warning-option") // 4251: class '...' needs to have dll-interface to be used by clients of class '...'
|
|
static QPointer<TreeViewWatcher> s_treeViewWatcher;
|
|
AZ_POP_DISABLE_WARNING
|
|
|
|
static unsigned int s_watcherReferenceCount;
|
|
|
|
static void initializeWatcher();
|
|
static void uninitializeWatcher();
|
|
|
|
static bool drawBranchIndicator(const Style* style, const QStyleOption* option, QPainter* painter, const QWidget* widget, const Config& config);
|
|
|
|
static bool polish(Style* style, QWidget* widget, const ScrollBar::Config& scrollBarConfig, const Config& config);
|
|
static bool unpolish(Style* style, QWidget* widget, const ScrollBar::Config& scrollBarConfig, const Config& config);
|
|
};
|
|
|
|
// If branch lines are displayed we need to shift the row contents to the right to
|
|
// make room for the arrow, thus this delegate.
|
|
class AZ_QT_COMPONENTS_API BranchDelegate
|
|
: public QStyledItemDelegate
|
|
{
|
|
Q_OBJECT
|
|
|
|
using QStyledItemDelegate::QStyledItemDelegate;
|
|
|
|
protected:
|
|
bool editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex &index) override;
|
|
void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
|
|
};
|
|
|
|
//! For most of the custom QTreeView styling, we override in AzQtComponents::Style class,
|
|
//! but there are some cases (e.g. drag/drop) that can only be overriden by an actual
|
|
//! subclass of the QTreeView
|
|
class AZ_QT_COMPONENTS_API StyledTreeView
|
|
: public QTreeView
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
AZ_CLASS_ALLOCATOR(StyledTreeView, AZ::SystemAllocator, 0);
|
|
|
|
explicit StyledTreeView(QWidget* parent = nullptr);
|
|
|
|
//! NOTE: QTreeWidget derives from QTreeView, but because we need a custom dervied class
|
|
//! of QTreeView, then we can't inherit our custom drag methods in our custom derived
|
|
//! class of QTreeWidget, so these functions are made static so they can be shared
|
|
static void StartCustomDragInternal(QAbstractItemView* itemView, const QModelIndexList& indexList, Qt::DropActions supportedActions);
|
|
static QImage CreateDragImage(QAbstractItemView* itemView, const QModelIndexList& indexList);
|
|
|
|
protected:
|
|
void startDrag(Qt::DropActions supportedActions) override;
|
|
|
|
virtual void StartCustomDrag(const QModelIndexList& indexList, Qt::DropActions supportedActions);
|
|
};
|
|
|
|
//! For most of the custom QTreeWidget styling, we override in AzQtComponents::Style class,
|
|
//! but there are some cases (e.g. drag/drop) that can only be overriden by an actual
|
|
//! subclass of the QTreeWidget.
|
|
class AZ_QT_COMPONENTS_API StyledTreeWidget
|
|
: public QTreeWidget
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
AZ_CLASS_ALLOCATOR(StyledTreeWidget, AZ::SystemAllocator, 0);
|
|
|
|
explicit StyledTreeWidget(QWidget* parent = nullptr);
|
|
|
|
protected:
|
|
void startDrag(Qt::DropActions supportedActions) override;
|
|
};
|
|
|
|
} // namespace AzQtComponents
|