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380 lines
11 KiB
380 lines
11 KiB
/*
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* htable.h
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*
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* Copyright 1997-1999 Mattias Engdegård
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* This file is part of qps -- Qt-based visual process status monitor
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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// This file defines the HeadedTable class.
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// A HeadedTable is a QTableView with one line of headers over each column.
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#ifndef HTABLE_H
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#define HTABLE_H
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#include "qttableview.h"
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#ifndef USING_PCH
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#include <QHash>
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#include <QToolTip>
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#include <QVBoxLayout>
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#endif
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// table options (bits to be ORed together)
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#define HTBL_ROW_SELECTION 1 // rows are selectable
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#define HTBL_ROW_DOUBLE_CLICK 2 // rows can be double-clicked
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#define HTBL_ROW_CONTEXT_MENU 4 // right button menu on rows
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#define HTBL_HEADING_TOOLTIPS 8 // tooltips on headings
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#define HTBL_HEADING_CONTEXT_MENU 16 // right button menu on headings
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#define HTBL_HEADING_CLICK 32 // able to click on heading (change sort order)
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#define HTBL_REORDER_COLS 64 // able to reorder columns
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class HeadedTable;
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class CellAttribute
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{
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public:
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QString text;
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bool selected;
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bool sorted;
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QSize size;
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QColor backColor; // table share
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QColor foreColor; // rows share
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int xpos; // cols share
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int ypos; // rows share
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int w; // cols share
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int depth; // rows share
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int folded; //
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int lastchild; //
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CellAttribute()
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{
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text = "";
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sorted = selected = false;
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xpos = -1, ypos = -1, w = 0, depth = -1, folded = -1;
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lastchild = 0;
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}
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};
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struct TableRow
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{
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public:
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CellAttribute cells[64]; // enough
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};
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class TableCache
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{
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int nrow, ncol;
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QList<TableRow *> rows;
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public:
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TableCache()
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{
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// for(int i=0;i<1;i++) // tmp
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rows.append(new TableRow);
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nrow = 0;
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ncol = 0;
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}
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void reset() {} // clear cache
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void setSize(int row, int col);
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void setRow(int row);
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void setCol(int col);
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CellAttribute *value(int row, int col)
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{
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if (row < 0)
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qFatal("Qps: Error ! TableCache() under size !! row=%d \n", row);
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if (row >= rows.size())
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{
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row = rows.size();
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rows.append(new TableRow);
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}
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// if(row<0 or row>rows.size())
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return &(rows[row]->cells[col]);
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}
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void cutUp(int n)
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{
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for (int i = 0; i < n; i++)
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{
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rows.append(rows.takeFirst());
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}
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}
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void cutDown(int n)
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{
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for (int i = 0; i < n; i++)
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{
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TableRow *row = rows.takeLast();
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rows.prepend(row);
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}
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}
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};
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class VPointer : public QWidget
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{
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Q_OBJECT
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public:
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VPointer(QWidget *parent);
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QPixmap *pix;
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QPixmap *pix_vcross;
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void setMovable(bool b) { flag_movable = b; }
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bool flag_movable;
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protected slots:
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// void event_cursor_moved(QMouseEvent *e);
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protected:
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// virtual void drawButton 3( QPainter * ) ;
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virtual void paintEvent(QPaintEvent *event);
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// void resizeEvent(QResizeEvent *p);
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};
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class FloatingHead : public QWidget
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{
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Q_OBJECT
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public:
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FloatingHead(QWidget *parent);
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QPixmap *pix;
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void setTitle(QString str, int w, int h);
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QString title;
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protected slots:
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protected:
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virtual void paintEvent(QPaintEvent *event);
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};
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class TableHead : public QtTableView
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{
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Q_OBJECT
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public:
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TableCache tablecache;
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TableHead(HeadedTable *parent = 0);
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virtual bool isCellChanged(int row, int col);
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virtual void checkProfile();
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protected slots:
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void scrollSideways(int);
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protected:
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virtual void paintCell(QPainter *p, int row, int col, bool update);
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virtual int cellWidth(int col);
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virtual void mousePressEvent(QMouseEvent *e);
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virtual void mouseReleaseEvent(QMouseEvent *e);
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virtual void mouseMoveEvent(QMouseEvent *e);
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virtual void eraseRight(QPainter *, QRect &r);
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virtual void dragEnterEvent(QDragEnterEvent *event);
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virtual void dragLeaveEvent(QDragLeaveEvent *event);
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FloatingHead *floatHead;
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HeadedTable *htable; // to access parent class
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QPoint press;
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int click_col; // physical column clicked in
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bool dragging;
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int drag_pos; // previous dragging position
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int drag_offset;
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signals:
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void rightClicked(QPoint where, int col);
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void toolTip(QPoint where, int col);
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friend class HeadedTable;
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};
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class TableBody : public QtTableView
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{
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Q_OBJECT
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public:
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TableCache tablecache;
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TableBody(HeadedTable *parent = 0);
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void drawGhostCol(int x, int w);
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// int zerowidth; // width of the digit 0
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virtual bool isCellChanged(int row, int col);
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virtual void checkProfile();
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protected slots:
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// for keyboard accelerators
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void jumpTop();
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void jumpBottom();
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void centerVertically(int row);
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void showRange(int from, int to);
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protected:
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virtual void scrollTrigger(int x, int y); // tmp
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virtual void paintCell(QPainter *p, int row, int col, bool forced);
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virtual int cellWidth(int col);
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void mousePressEvent(QMouseEvent *e);
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void mouseDoubleClickEvent(QMouseEvent *e);
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void mouseMoveEvent(QMouseEvent *e);
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void mouseReleaseEvent(QMouseEvent *);
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void leaveEvent(QEvent *);
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void timerEvent(QTimerEvent *);
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void updateRow(int row);
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void dragSelectTo(int row);
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QColor getXorColor();
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HeadedTable *htable; // to access parent class
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int first_drag_row; // row where drag started
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int prev_drag_row; // row where drag was at last event
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bool autoscrolling; // true if we are autoscrolling right now
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enum
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{
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UP,
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DOWN
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} scrolldir;
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static const int scroll_delay = 10; // time delay when autoscrolling, in ms
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bool gadget_click; // whether mouse press was on folding gadget
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private:
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QColor background;
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QColor color_text;
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friend class HeadedTable;
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};
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class HeadedTable : public QWidget
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{
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Q_OBJECT
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public:
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HeadedTable(QWidget *parent, int opts = 0);
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~HeadedTable();
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TableHead *header() { return head; } // interface
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TableHead *head;
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TableBody *body;
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CellAttribute *attr; // DEL temporarily buffer
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enum NodeState
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{
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Leaf,
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Open,
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Closed
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};
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void repaint_changed();
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int updateColWidth(int col);
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void resetWidths();
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void resetWidth(int col) { max_widths[col] = -1; } // dont use ?
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void setProxy(QWidget *w) { body->setFocusProxy(w); }
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void setSortedCol(int col);
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int sortedCol() { return sorted_col; }
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int numRows() { return nrows; }
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int numCols() { return ncols; }
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void setNumRows(int rows);
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void setNumCols(int cols);
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int clickedColumn() { return head->click_col; }
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void deleteCol(int col, bool update = true);
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int leftCell() { return body->leftCell(); };
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int lastColVisible() { return body->lastColVisible(); };
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int topCell() { return body->topCell(); };
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int lastRowVisible() { return body->lastRowVisible(); };
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void updateCell(int row, int col, bool erase = false);
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void updateHeading(int col){/* head->updateCell(0, col); */};
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void setAutoUpdate(bool update)
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{
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head->setAutoUpdate(update);
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body->setAutoUpdate(update);
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};
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void centerVertically(int row) { body->centerVertically(row); };
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void showRange(int from, int to) { body->showRange(from, to); };
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void repaintColumns(int col0, int col1 = -1);
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void setTreeMode(bool tm);
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bool treeMode() { return treemode; };
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int tableWidth() const
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{
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return body->totalWidth() + body->verticalScrollBar()->width();
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}
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void selectOnlyOne(int row);
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int numSelected() { return 0; }
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void clearAllSelections();
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virtual void setSelected(int row, bool sel){};
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virtual bool isSelected(int row) { return false; }
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virtual void checkTableModel(){};
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signals:
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void titleClicked(int col);
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void selectionChanged();
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void doubleClicked(int row);
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void rightClicked(QPoint where);
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void foldSubTree(int row);
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void colMoved(int col, int place);
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void flyOnCell(int row, int col);
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void flyOnHCell(int col);
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void outOfCell();
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void outOfHCell();
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public slots:
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void selectAll();
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void repaintAll();
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protected:
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void fontChange(const QFont &oldFont);
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// These must be implemented in subclasses
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virtual QString title(int col) = 0;
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virtual QString text(int row, int col) = 0;
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virtual char *total_selectedRow(int col);
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// colWidth returns width in digit units; negative means variable width.
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virtual int colWidth(int col) = 0; // head_width
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virtual int alignment(int col) { return 0; }
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virtual int sizeHintForColumn(int col) const { return -1; }
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virtual void paintEvent(QPaintEvent *);
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virtual void hideEvent(QHideEvent *event);
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virtual void showEvent(QShowEvent *event);
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// may be reimplemented (default exists)
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virtual void moveCol(int col, int place);
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virtual QString tipText(int col);
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virtual int rowDepth(int row) { return 0; };
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virtual NodeState folded(int row) { return Leaf; };
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virtual int parentRow(int row) { return 0; };
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virtual bool lastChild(int row) { return false; };
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virtual bool columnMovable(int col) { return true; };
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// virtual bool modified(int row){return true;};
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virtual void overpaintCell(QPainter *p, int row, int col, int xpos){};
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void resizeEvent(QResizeEvent *);
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bool treemode;
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int treestep; // indentation for each tree level
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private:
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inline int computedWidth(int col);
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int colOffset(int col);
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inline int colXPos(int col);
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void updateCols(int deltacols, int place, bool update);
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int alignment_col[64];
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int headwidth_col[64];
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int max_widths[64]; // row widths, indexed by columns
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// Svec<int> widths; // row widths, indexed by columns
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int sorted_col; // column to emphasize
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int reversed_sort; // true if sorting backwards
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int options;
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int nrows;
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int ncols;
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// text cache is in logical columns (reorder causes no flush)
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bool folding; // true if folding gadgets are used
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bool lines; // true if tree lines are drawn
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int gadget_space; // horizontal space for show/hide tree gadget
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friend class TableHead;
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friend class TableBody;
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};
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#endif // HTABLE_H
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