qtAdskStyleProxy.cpp

// ===========================================================================
// Copyright 2017 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================

#include <qtAdskStyleProxy.h>
#include <QtWidgets/QStyleFactory>
#include <QtWidgets/QStyleOption>
#include <QtWidgets/qdrawutil.h>
#include <QtGui/QPalette>
#include <maya/MGlobal.h>
#include <maya/MQtUtil.h>

//
//  qtAdskStyleProxyPlugin class
//

QStyle *qtAdskStyleProxyPlugin::create(const QString &key)
{
    // This is the name (of the style) used to create our style proxy which we can use to
    // override much of Maya UI drawn from the style.
    if (key.toLower() == "qtadskstyleproxy")
        return new qtAdskStyleProxy();

    return nullptr;
}

//
//  qtAdskStyleProxy class
//

qtAdskStyleProxy::qtAdskStyleProxy()
    // Our style wraps the Maya style 'adskdarkflatui' so we can override
    // painting or other specific style behavior. The Maya style is available
    // in the plugin '.../qt-plugins/styles/AdskStyle'.
    : QProxyStyle(QStyleFactory::create(QLatin1String("adskdarkflatui")))
{
}

QPalette qtAdskStyleProxy::standardPalette() const
{
    // First call our base class, which will call into the internal
    // adskdarkflatui style class.
    QPalette pal = QProxyStyle::standardPalette();

    // Then we can customize the palette as needed.

    // Make the general background a bit darker than normal Maya.
    pal.setBrush(QPalette::Disabled, QPalette::Window,     QColor(45,45,45));
    pal.setBrush(QPalette::Active,   QPalette::Window,     QColor(45,45,45));
    pal.setBrush(QPalette::Inactive, QPalette::Window,     QColor(45,45,45));

    pal.setBrush(QPalette::Active,   QPalette::WindowText, QColor(133,133,133));
    pal.setBrush(QPalette::Inactive, QPalette::WindowText, QColor(133,133,133));

    pal.setBrush(QPalette::Active,   QPalette::ButtonText, QColor(133,133,133));
    pal.setBrush(QPalette::Inactive, QPalette::ButtonText, QColor(133,133,133));

    pal.setBrush(QPalette::Active,   QPalette::Text,       QColor(133,133,133));
    pal.setBrush(QPalette::Inactive, QPalette::Text,       QColor(133,133,133));

    return pal;
}

//
// You can override any of the virtual methods from the base class 'QProxyStyle'.
// This enables you to customize much of the look/drawing of Maya.
//

void qtAdskStyleProxy::drawControl(ControlElement element, const QStyleOption *option,
                                    QPainter *painter, const QWidget *widget) const
{
    return QProxyStyle::drawControl(element, option, painter, widget);
}

int qtAdskStyleProxy::pixelMetric(PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
{
    int ret = -1;
    switch (metric)
    {
    case PM_MenuTearoffHeight:
        // Maya sets this value to 16 - let's make them a bit larger
        ret = MQtUtil::dpiScale(20);
        break;

    default:
        break;
    }

    return (ret != -1) ? ret : QProxyStyle::pixelMetric(metric, option, widget);
}