clean codes

Sine Striker

2023-12-11 b1cc4e7de641a9e6ef866744d7775d45813bad8d

 src/widgets/widgetwindowagent.cpp

@@ -3,33 +3,71 @@

#include <QtGui/QtEvents>
#include <QtGui/QPainter>
#include <QtCore/QDebug>

#include "widgetitemdelegate_p.h"

namespace QWK {

    class WidgetPaintFilter : public QObject {
    class WidgetBorderHandler : public QObject {
    public:
        WidgetPaintFilter(QWidget *widget, AbstractWindowContext *ctx) : widget(widget), ctx(ctx) {
        WidgetBorderHandler(QWidget *widget, AbstractWindowContext *ctx)
            : widget(widget), ctx(ctx), m_thickness(0) {
            updateThickness();
            widget->installEventFilter(this);
        }

        void updateThickness() {
            // Query thickness
            bool native = false;
            void *a[] = {
                &native,
                &m_thickness,
            };
            ctx->virtual_hook(AbstractWindowContext::BorderThicknessHook, &a);
        }

        void updateMargins() {
            if (widget->windowState() & (Qt::WindowMaximized | Qt::WindowFullScreen)) {
                widget->setContentsMargins({});
            } else {
                widget->setContentsMargins({0, int(m_thickness), 0, 0});
            }
        }

    protected:
        bool eventFilter(QObject *obj, QEvent *event) override {
            switch (event->type()) {
                case QEvent::Paint: {
                    auto e = static_cast<QPaintEvent *>(event);
                    if (widget->windowState() & (Qt::WindowMaximized | Qt::WindowFullScreen))
                        break;

                    auto paintEvent = static_cast<QPaintEvent *>(event);
                    QPainter painter(widget);
                    QRect rect = e->rect();
                    QRegion region = e->region();
                    void *a[] = {
                    QRect rect = paintEvent->rect();
                    QRegion region = paintEvent->region();
                    void *args[] = {
                        &painter,
                        &rect,
                        &region,
                    };
                    ctx->virtual_hook(AbstractWindowContext::DrawBordersHook, a);
                    ctx->virtual_hook(AbstractWindowContext::DrawBordersHook, args);
                    return true;
                }

                case QEvent::WindowStateChange: {
                    updateMargins();
                    break;
                }

                case QEvent::WindowActivate:
                case QEvent::WindowDeactivate: {
                    widget->update();
                    break;
                }

                    // TODO: Handle DPI Change

                default:
                    break;
            }
@@ -38,6 +76,7 @@

        QWidget *widget;
        AbstractWindowContext *ctx;
        quint32 m_thickness;
    };

    WidgetWindowAgentPrivate::WidgetWindowAgentPrivate() {
@@ -79,13 +118,10 @@
        if (bool needPaintBorder = false;
            d->context->virtual_hook(AbstractWindowContext::NeedsDrawBordersHook, &needPaintBorder),
            needPaintBorder) {
            d->paintFilter = std::make_unique<WidgetPaintFilter>(w, d->context.get());
            auto borderHandler = std::make_unique<WidgetBorderHandler>(w, d->context.get());
            borderHandler->updateMargins();
            d->borderHandler = std::move(borderHandler);
        }

        if (d->context->key() == "win32") {
            w->setContentsMargins(0, 1, 0, 0);
        }

        return true;
    }