QmlDesigner: Add manual test for pixel perfect formeditor overlays

We have a few off-by-ones in the visualization of selection, boundary,
etc. Also, there are differences between low and high DPI, aswell as
different platforms.

This manual test is supposed to enable proper analysis whether the
visualizations are correct or not.

Change-Id: Iee407d37a2c6f2f272e11a4d9774532343463bc1
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

3 files changed, 179 insertions, 0 deletions

diff --git a/tests/manual/qml/testprojects/pixelmetrics/PixelMeter.qml b/tests/manual/qml/testprojects/pixelmetrics/PixelMeter.qml
new file mode 100644
index 0000000000..f7d922abca
--- /dev/null
+++ b/tests/manual/qml/testprojects/pixelmetrics/PixelMeter.qml
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.10
+
+Canvas {
+    width: 100
+    height: 100
+
+    function drawCornerMarkers(ctx)
+    {
+        var cornerMarkerSize = 10;
+
+        ctx.beginPath();
+
+        // top left
+        ctx.moveTo(0, 0.5);
+        ctx.lineTo(cornerMarkerSize, 0.5);
+        ctx.moveTo(0.5, 0);
+        ctx.lineTo(0.5, cornerMarkerSize);
+
+        // top right
+        ctx.moveTo(width - cornerMarkerSize, 0.5);
+        ctx.lineTo(width, 0.5);
+        ctx.moveTo(width - 0.5, 0);
+        ctx.lineTo(width - 0.5, cornerMarkerSize);
+
+        // bottom left
+        ctx.moveTo(0, height - 0.5);
+        ctx.lineTo(cornerMarkerSize, height - 0.5);
+        ctx.moveTo(0.5, height - cornerMarkerSize);
+        ctx.lineTo(0.5, height);
+
+        // bottom right
+        ctx.moveTo(width - cornerMarkerSize, height - 0.5);
+        ctx.lineTo(width, height - 0.5);
+        ctx.moveTo(width - 0.5, height - cornerMarkerSize);
+        ctx.lineTo(width - 0.5, height);
+
+        ctx.stroke();
+    }
+
+    function drawMetrics(ctx)
+    {
+        ctx.font = '9px sans-serif';
+
+        // top left
+        ctx.textAlign = "left";
+        ctx.textBaseline = "top";
+        ctx.fillStyle = Qt.rgba(0, 0, 1, 1);
+        ctx.fillText(x + '|' + y, 1, 1);
+
+        // size
+        ctx.textAlign = "center";
+        ctx.textBaseline = "middle";
+        ctx.fillText(width + 'x' + height, width / 2, height / 2);
+
+        // bottom right
+        ctx.textAlign = "right";
+        ctx.textBaseline = "bottom";
+        ctx.fillText((x + width) + '|' + (y + height), width - 1, height - 1);
+    }
+
+    onPaint: {
+        var ctx = getContext("2d");
+
+        ctx.fillStyle = Qt.rgba(1, 0, 0, 0.2);
+        ctx.fillRect(0, 0, width, height);
+
+        drawCornerMarkers(ctx);
+        drawMetrics(ctx);
+    }
+}
diff --git a/tests/manual/qml/testprojects/pixelmetrics/pixelmetrics.qml b/tests/manual/qml/testprojects/pixelmetrics/pixelmetrics.qml
new file mode 100644
index 0000000000..531ca4926f
--- /dev/null
+++ b/tests/manual/qml/testprojects/pixelmetrics/pixelmetrics.qml
@@ -0,0 +1,75 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Window 2.10
+
+Window {
+    visible: true
+    width: 180
+    height: 215
+
+    PixelMeter {
+        width: 60
+        height: 40
+        x: 0
+        y: 0
+    }
+
+    PixelMeter {
+        x: 60
+        y: 40
+        width: 120
+        height: 175
+
+        PixelMeter {
+            x: 80
+            y: 40
+            width: 40
+            height: 40
+        }
+
+        PixelMeter {
+            x: 80
+            y: 0
+            width: 40
+            height: 40
+        }
+
+        PixelMeter {
+            x: 40
+            y: 0
+            width: 40
+            height: 40
+        }
+
+        PixelMeter {
+            x: 40
+            y: 40
+            width: 40
+            height: 40
+        }
+    }
+}
diff --git a/tests/manual/qml/testprojects/pixelmetrics/pixelmetrics.qmlproject b/tests/manual/qml/testprojects/pixelmetrics/pixelmetrics.qmlproject
new file mode 100644
index 0000000000..b86a26be3b
--- /dev/null
+++ b/tests/manual/qml/testprojects/pixelmetrics/pixelmetrics.qmlproject
@@ -0,0 +1,9 @@
+import QmlProject 1.1
+
+Project {
+    mainFile: "pixelmetrics.qml"
+
+    QmlFiles {
+        directory: "."
+    }
+}