/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVis3D module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/

#ifndef Q3DBARS_H
#define Q3DBARS_H

#include <QtDataVis3D/qdatavis3denums.h>
#include <QtDataVis3D/q3dwindow.h>
#include <QFont>

QT_DATAVIS3D_BEGIN_NAMESPACE

class Q3DBarsPrivate;
class QCategoryAxis;
class QValueAxis;
class QBarDataProxy;

class QT_DATAVIS3D_EXPORT Q3DBars : public Q3DWindow
{
    Q_OBJECT
    Q_PROPERTY(QtDataVis3D::QDataVis::SelectionMode selectionMode READ selectionMode WRITE setSelectionMode)
    Q_PROPERTY(QtDataVis3D::QDataVis::LabelTransparency labelTransparency READ labelTransparency WRITE setLabelTransparency)
    Q_PROPERTY(QtDataVis3D::QDataVis::ShadowQuality shadowQuality READ shadowQuality WRITE setShadowQuality)
    Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle)
    Q_PROPERTY(QFont font READ font WRITE setFont)
    Q_PROPERTY(float fontSize READ fontSize WRITE setFontSize)
    Q_PROPERTY(bool gridVisible READ isGridVisible WRITE setGridVisible)
    Q_PROPERTY(bool backgroundVisible READ isBackgroundVisible WRITE setBackgroundVisible)
    Q_ENUMS(QtDataVis3D::QDataVis::SelectionMode)
    Q_ENUMS(QtDataVis3D::QDataVis::ShadowQuality)
    Q_ENUMS(QtDataVis3D::QDataVis::LabelTransparency)

public:
    explicit Q3DBars();
    ~Q3DBars();

    // bar thickness, spacing between bars, and is spacing relative to thickness or absolute
    // y -component sets the thickness/spacing of z -direction
    // With relative 0.0f means side-to-side, 1.0f = one thickness in between
    void setBarSpecs(QSizeF thickness = QSizeF(1.0f, 1.0f),
                     QSizeF spacing = QSizeF(1.0f, 1.0f),
                     bool relative = true);

    // bar type; bars (=cubes), pyramids, cones, cylinders, etc.
    void setBarType(QDataVis::MeshStyle style, bool smooth = false);

    // how many samples per row and column, and names for axes
    // TODO: This defines the data window, needs additional parameters startRow, startColumn
    void setupSampleSpace(int samplesRow, int samplesColumn);
    QSize sampleSpace() const; // TODO: Return QRect once data window properly implemented?

    // Select preset camera placement
    void setCameraPreset(QDataVis::CameraPreset preset);

    // Set camera rotation if you don't want to use the presets (in horizontal (-180...180) and
    // vertical (0...90) (or (-90...90) if there are negative values) angles and distance in
    // percentage (10...500))
    void setCameraPosition(qreal horizontal, qreal vertical, int distance = 100);

    // Set theme (bar colors, shaders, window color, background colors, light intensity and text
    // colors are affected)
    void setTheme(QDataVis::ColorTheme theme);

    // Set color if you don't want to use themes. Set uniform to false if you want the (height)
    // color to change from bottom to top
    void setBarColor(QColor baseColor, QColor heightColor, QColor depthColor,
                     bool uniform = true);

    // override bar type with own mesh
    void setMeshFileName(const QString &objFileName);
    // TODO: light placement API

    // Change selection mode; single bar, bar and row, bar and column, or all
    void setSelectionMode(QDataVis::SelectionMode mode);
    QDataVis::SelectionMode selectionMode() const;

    // Set window title
    void setWindowTitle(const QString &title);
    QString windowTitle() const;

    // Font size adjustment
    void setFontSize(float fontsize);
    float fontSize();

    // Set font
    void setFont(const QFont &font);
    QFont font() const;

    // Label transparency adjustment
    void setLabelTransparency(QDataVis::LabelTransparency transparency);
    QDataVis::LabelTransparency labelTransparency() const;

    // Enable or disable background grid
    void setGridVisible(bool visible);
    bool isGridVisible() const;

    // Size
    void setWidth(const int width);
    void setHeight(const int height);

    // Enable or disable background mesh
    void setBackgroundVisible(bool visible);
    bool isBackgroundVisible() const;

    // Adjust shadow quality
    void setShadowQuality(QDataVis::ShadowQuality quality);
    QDataVis::ShadowQuality shadowQuality() const;

    // Axes - row & column axes are fixed to category axes, value axis can be
    // customized.
    QCategoryAxis *rowAxis();
    QCategoryAxis *columnAxis();
    void setValueAxis(QValueAxis *axis);
    QValueAxis *valueAxis();

    // Sets the data proxy. Assumes ownership of the data proxy. Deletes old proxy.
    void setDataProxy(QBarDataProxy *proxy);
    QBarDataProxy *dataProxy();

public slots:
    // Used to detect when shadow quality changes autonomously due to e.g. resizing.
    void handleShadowQualityUpdate(QDataVis::ShadowQuality quality);

signals:
    // Signals shadow quality changes.
    void shadowQualityChanged(QDataVis::ShadowQuality quality);

protected:
    void render();

#if defined(Q_OS_ANDROID)
    void mouseDoubleClickEvent(QMouseEvent *event);
    void touchEvent(QTouchEvent *event);
#endif
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void wheelEvent(QWheelEvent *event);
    void resizeEvent(QResizeEvent *event);

private:
    QScopedPointer<Q3DBarsPrivate> d_ptr;
    Q_DISABLE_COPY(Q3DBars)
};

QT_DATAVIS3D_END_NAMESPACE

#endif