First Commit

3rdparty/kddockwidgets/examples/minimal/MyWidget.cpp

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+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+#include "MyWidget.h"
+
+#include <QPainter>
+#include <QDebug>
+#include <QFile>
+#include <QLineEdit>
+
+static QHash<QString, QImage> s_images; /// clazy:exclude=non-pod-global-static
+
+MyWidget::MyWidget(const QString &backgroundFile, const QString &logoFile, QWidget *parent)
+    : QWidget(parent)
+{
+    if (!backgroundFile.isEmpty()) {
+        auto it = s_images.find(backgroundFile);
+        if (it == s_images.end())
+            it = s_images.insert(backgroundFile, QImage(backgroundFile));
+        m_background = it.value();
+    }
+
+    if (!logoFile.isEmpty()) {
+        auto it = s_images.find(logoFile);
+        if (it == s_images.end())
+            it = s_images.insert(logoFile, QImage(logoFile));
+        m_logo = it.value();
+    }
+
+    setFocusPolicy(Qt::StrongFocus);
+#if 0
+    // Uncomment to show focus propagation working
+    new QLineEdit(this);
+    auto l2 = new QLineEdit(this);
+    l2->move(0, 100);
+    setFocusProxy(l2);
+#endif
+}
+
+MyWidget::~MyWidget()
+{
+}
+
+void MyWidget::drawLogo(QPainter &p)
+{
+    if (m_logo.isNull())
+        return;
+
+    const qreal ratio = m_logo.height() / (m_logo.width() * 1.0);
+
+    const int maxWidth = int(0.80 * size().width());
+    const int maxHeight = int(0.80 * size().height());
+
+    const int proposedHeight = int(maxWidth * ratio);
+
+    const int width = proposedHeight <= maxHeight ? maxWidth : int(maxHeight / ratio);
+
+    const int height = int(width * ratio);
+    QRect targetLogoRect(0, 0, width, height);
+    targetLogoRect.moveCenter(rect().center() + QPoint(0, -int(size().height() * 0.00)));
+    p.drawImage(targetLogoRect, m_logo, m_logo.rect());
+}
+
+MyWidget1::MyWidget1(MyWidget::QWidget *parent)
+    : MyWidget(QStringLiteral(":/assets/triangles.png"),
+               QStringLiteral(":/assets/KDAB_bubble_white.png"), parent)
+{
+}
+
+void MyWidget1::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    p.fillRect(rect(), QColor(0xCC, 0xCC, 0xCC));
+    p.drawImage(m_background.rect(), m_background, m_background.rect());
+
+    drawLogo(p);
+}
+
+MyWidget2::MyWidget2(MyWidget::QWidget *parent)
+    : MyWidget(QString(), QStringLiteral(":/assets/KDAB_bubble_blue.png"), parent)
+{
+}
+
+void MyWidget2::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    p.fillRect(rect(), Qt::white);
+    drawLogo(p);
+}
+
+MyWidget3::MyWidget3(MyWidget::QWidget *parent)
+    : MyWidget(QStringLiteral(":/assets/base.png"),
+               QStringLiteral(":/assets/KDAB_bubble_fulcolor.png"), parent)
+    , m_triangle(QImage(QStringLiteral(":/assets/tri.png")))
+{
+}
+
+void MyWidget3::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    p.fillRect(rect(), QColor(0xD5, 0xD5, 0xD5));
+
+    p.drawImage(m_background.rect(), m_background, m_background.rect());
+
+    const QRect targetRect =
+        QRect({ width() - m_triangle.width(), height() - m_triangle.height() }, m_triangle.size());
+
+    p.drawImage(targetRect, m_triangle, m_triangle.rect());
+    drawLogo(p);
+}