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0001 // ct_lvtqtw_tool_zoom.cpp                                           -*-C++-*-
0002 
0003 /*
0004 // Copyright 2023 Codethink Ltd <codethink@codethink.co.uk>
0005 // SPDX-License-Identifier: Apache-2.0
0006 //
0007 // Licensed under the Apache License, Version 2.0 (the "License");
0008 // you may not use this file except in compliance with the License.
0009 // You may obtain a copy of the License at
0010 //
0011 //     http://www.apache.org/licenses/LICENSE-2.0
0012 //
0013 // Unless required by applicable law or agreed to in writing, software
0014 // distributed under the License is distributed on an "AS IS" BASIS,
0015 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0016 // See the License for the specific language governing permissions and
0017 // limitations under the License.
0018 */
0019 
0020 #include <ct_lvtqtc_graphicsview.h>
0021 #include <ct_lvtqtc_tool_zoom.h>
0022 
0023 #include <ct_lvtqtc_iconhelpers.h>
0024 
0025 #include <QMouseEvent>
0026 
0027 namespace Codethink::lvtqtc {
0028 
0029 ToolZoom::ToolZoom(GraphicsView *gv):
0030     ToolRubberband(tr("Rubberband Zoom"),
0031                    tr("Click and drag to zoom to selected area"),
0032                    IconHelpers::iconFrom(":/icons/zoom_selection"),
0033                    gv)
0034 {
0035     setRubberbandPen(QPen(QBrush(QColor(0, 0, 255, 135)), 1));
0036     setRubberbandBrush(QBrush(QColor(0, 0, 255, 135)));
0037 }
0038 
0039 ToolZoom::~ToolZoom() noexcept = default;
0040 
0041 void ToolZoom::rubberbandChanged(const QPoint& topLeft, const QPoint& bottomRight)
0042 {
0043     Q_UNUSED(topLeft);
0044     Q_UNUSED(bottomRight);
0045     // no op.
0046 }
0047 
0048 void ToolZoom::rubberbandFinished(const QPoint& topLeft, const QPoint& bottomRight)
0049 {
0050     graphicsView()->zoomIntoRect(topLeft, bottomRight);
0051 }
0052 
0053 } // namespace Codethink::lvtqtc