File indexing completed on 2024-04-28 04:31:54
0001 /* 0002 * Copyright (C) 2003-2015 by Stephen Allewell 0003 * steve.allewell@gmail.com 0004 * 0005 * This program is free software; you can redistribute it and/or modify 0006 * it under the terms of the GNU General Public License as published by 0007 * the Free Software Foundation; either version 2 of the License, or 0008 * (at your option) any later version. 0009 */ 0010 0011 /** @file 0012 * This file defines an overlay to be used on top of a QLabel to allow the 0013 * selection of a pixel point to be used as a color to be ignored. 0014 */ 0015 0016 #ifndef AlphaSelect_H 0017 #define AlphaSelect_H 0018 0019 // Qt includes 0020 #include <QPoint> 0021 0022 // Application includes 0023 #include "ScaledPixmapLabel.h" 0024 0025 // Forward declaration of Qt classes 0026 class QMouseEvent; 0027 0028 /** 0029 * This class defines a widget based on a ScaledPixmapLabel that will allow 0030 * user selection of a point on the widget to define a color to be ignored for 0031 * import. 0032 */ 0033 class AlphaSelect : public ScaledPixmapLabel 0034 { 0035 Q_OBJECT 0036 0037 public: 0038 /** 0039 * Constructor to initialise the class from the parent ScaledPixmapLabel 0040 * used in the ImportImageDlg ui file. This class becomes a child of 0041 * the parent and initialises it with the parents QPixmap. 0042 * 0043 * @param parent is a pointer to the parent ScaledPixmapLabel 0044 */ 0045 explicit AlphaSelect(ScaledPixmapLabel *parent); 0046 0047 signals: 0048 /** 0049 * This signal is emmitted when the user clicks the mouse button and includes 0050 * the QPoint of the clicked position relative to the origin of the 0051 * widget. 0052 */ 0053 void clicked(QPoint); 0054 0055 protected: 0056 /** 0057 * This overrides the base class method to determine where the user clicked 0058 * the mouse. If the cursor is within the image preview the clicked 0059 * signal will be emmitted. 0060 * 0061 * @param event is a pointer to the QMouseEvent 0062 */ 0063 virtual void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE; 0064 }; 0065 0066 #endif // AlphaSelect_H