forked from qt-creator/qt-creator
96 lines
2.9 KiB
QML
96 lines
2.9 KiB
QML
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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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import QtQuick 2.10
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Canvas {
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width: 100
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height: 100
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function drawCornerMarkers(ctx)
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{
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var cornerMarkerSize = 10;
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ctx.beginPath();
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// top left
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ctx.moveTo(0, 0.5);
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ctx.lineTo(cornerMarkerSize, 0.5);
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ctx.moveTo(0.5, 0);
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ctx.lineTo(0.5, cornerMarkerSize);
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// top right
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ctx.moveTo(width - cornerMarkerSize, 0.5);
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ctx.lineTo(width, 0.5);
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ctx.moveTo(width - 0.5, 0);
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ctx.lineTo(width - 0.5, cornerMarkerSize);
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// bottom left
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ctx.moveTo(0, height - 0.5);
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ctx.lineTo(cornerMarkerSize, height - 0.5);
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ctx.moveTo(0.5, height - cornerMarkerSize);
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ctx.lineTo(0.5, height);
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// bottom right
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ctx.moveTo(width - cornerMarkerSize, height - 0.5);
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ctx.lineTo(width, height - 0.5);
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ctx.moveTo(width - 0.5, height - cornerMarkerSize);
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ctx.lineTo(width - 0.5, height);
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ctx.stroke();
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}
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function drawMetrics(ctx)
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{
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ctx.font = '9px sans-serif';
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// top left
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ctx.textAlign = "left";
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ctx.textBaseline = "top";
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ctx.fillStyle = Qt.rgba(0, 0, 1, 1);
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ctx.fillText(x + '|' + y, 1, 1);
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// size
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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ctx.fillText(width + 'x' + height, width / 2, height / 2);
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// bottom right
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ctx.textAlign = "right";
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ctx.textBaseline = "bottom";
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ctx.fillText((x + width) + '|' + (y + height), width - 1, height - 1);
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}
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onPaint: {
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var ctx = getContext("2d");
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ctx.fillStyle = Qt.rgba(1, 0, 0, 0.2);
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ctx.fillRect(0, 0, width, height);
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drawCornerMarkers(ctx);
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drawMetrics(ctx);
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}
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}
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