1 /*
2     KSysGuard, the KDE System Guard
3 
4     Copyright (c) 1999 - 2002 Chris Schlaeger <cs@kde.org>
5 
6  This program is free software; you can redistribute it and/or
7  modify it under the terms of the GNU General Public License as
8  published by the Free Software Foundation; either version 2 of
9  the License or (at your option) version 3 or any later version
10  accepted by the membership of KDE e.V. (or its successor approved
11  by the membership of KDE e.V.), which shall act as a proxy
12  defined in Section 14 of version 3 of the license.
13 
14  This program is distributed in the hope that it will be useful,
15  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  GNU General Public License for more details.
18 
19  You should have received a copy of the GNU General Public License
20  along with this program.  If not, see <http://www.gnu.org/licenses/>.
21 */
22 
23 #ifndef KSG_WORKSHEET_H
24 #define KSG_WORKSHEET_H
25 
26 #include <QWidget>
27 #include <QTimer>
28 
29 #include <SensorDisplay.h>
30 #include "SharedSettings.h"
31 
32 class QDomElement;
33 class QDragEnterEvent;
34 class QDropEvent;
35 class QGridLayout;
36 class QString;
37 class QStringList;
38 
39 /**
40   A WorkSheet contains the displays to visualize the sensor results. When
41   creating the WorkSheet you must specify the number of columns. Displays
42   can be added and removed on the fly. The grid layout will handle the
43   layout. The number of columns can not be changed. Displays are added by
44   dragging a sensor from the sensor browser over the WorkSheet.
45  */
46 class WorkSheet : public QWidget
47 {
48   Q_OBJECT
49 
50   public:
51     explicit WorkSheet( QWidget* parent);
52     WorkSheet( int rows, int columns, float interval, QWidget* parent);
53     ~WorkSheet() override;
54 
55     bool load( const QString &fileName );
56     bool save( const QString &fileName );
57     bool exportWorkSheet( const QString &fileName );
58 
59     void cut();
60     void copy();
61     void paste();
62 
63     void setFileName( const QString &fileName );
64     QString fileName() const;
65 
66     QString fullFileName() const;
67 
isLocked()68     bool isLocked() const {return mSharedSettings.locked;}
69 
70     QString title() const;
71     QString translatedTitle() const;
72     void refreshSheet();
73 
74     KSGRD::SensorDisplay* addDisplay( const QString &hostname,
75                                       const QString &monitor,
76                                       const QString &sensorType,
77                                       const QString &sensorDescr,
78                                       int row, int column );
79 
80     void settings();
81     float updateInterval() const;
82 
83   public Q_SLOTS:
84     void showPopupMenu( KSGRD::SensorDisplay *display );
85     void setTitle( const QString &title );
86     void applyStyle();
87 
88   Q_SIGNALS:
89     void titleChanged( QWidget *sheet );
90 
91   protected:
92 
93     void changeEvent( QEvent * event ) override;
94     QSize sizeHint() const override;
95     void dragMoveEvent( QDragMoveEvent* ) override;
96     void dragEnterEvent( QDragEnterEvent* ) override;
97     void dropEvent( QDropEvent* ) override;
98     bool event( QEvent* ) override;
99     void setUpdateInterval( float interval);
100 
101   private:
102     void removeDisplay( KSGRD::SensorDisplay *display );
103 
104     bool replaceDisplay( int row, int column, QDomElement& element, int rowSpan = 1, int columnSpan = 1 );
105 
106     void replaceDisplay( int row, int column, KSGRD::SensorDisplay* display = nullptr, int rowSpan = 1, int columnSpan = 1 );
107 
108     void collectHosts( QStringList &list );
109 
110     void createGrid( int rows, int columns );
111 
112     void resizeGrid( int rows, int columns );
113 
114     KSGRD::SensorDisplay* currentDisplay( int *row = nullptr, int *column = nullptr );
115 
116     void fixTabOrder();
117 
118     QString currentDisplayAsXML();
119 
120     int mRows;
121     int mColumns;
122 
123     QGridLayout* mGridLayout;
124     QString mFileName;
125     QString mFullFileName;
126     QString mTitle;
127     QString mTranslatedTitle;
128 
129     SharedSettings mSharedSettings;
130 
131     QTimer mTimer;
132 
133     enum DisplayType { DisplayDummy, DisplayFancyPlotter, DisplayMultiMeter, DisplayDancingBars, DisplaySensorLogger, DisplayListView, DisplayLogFile, DisplayProcessControllerRemote, DisplayProcessControllerLocal };
134 
135     KSGRD::SensorDisplay* insertDisplay( DisplayType displayType, QString displayTitle, int row, int column, int rowSpan = 1, int columnSpan = 1);
136 };
137 
138 #endif
139