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/***************************************************************************
measurements.h - description
-------------------
begin : Mit Dec 24 2003
copyright : (C) 2003 by Dominik Seichter
email : domseichter@web.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef MEASUREMENTS_H
#define MEASUREMENTS_H
#include <klocale.h>
class QPaintDevice;
/**
* This class keeps all measurements required to correctly draw a label.
* The measurements are available in pixels, milimeter and inch.
* This class allows also for transformations from inch to mm or pixels
* (and the other way round). Internally, everything is handled in mm.
*
* @author Dominik Seichter
*/
class Measurements {
public:
enum {
DpiX,
DpiY
};
enum {
Metric = KLocale::Metric,
Imperial = KLocale::Imperial,
None
};
Measurements();
Measurements( const Measurements & rhs );
~Measurements();
int numH() const { return num_h; }
int numV() const { return num_v; }
double gapLeftMM() const { return gap_left; }
double gapTopMM() const { return gap_top; }
double gapVMM() const { return gap_v; }
double gapHMM() const { return gap_h; }
double widthMM() const { return m_width; }
double heightMM() const { return m_height; }
// return inch or milimeters according to the
// users preferrences
double gapLeft() const;
double gapTop() const;
double gapV() const;
double gapH() const;
double width() const;
double height() const;
double gapLeft( const QPaintDevice* device ) const;
double gapTop( const QPaintDevice* device ) const;
double gapV( const QPaintDevice* device ) const;
double gapH( const QPaintDevice* device ) const;
double width( const QPaintDevice* device ) const;
double height( const QPaintDevice* device ) const;
void setNumH( int n ) { num_h = n; }
void setNumV( int n ) { num_v = n; }
// use milimeters for all of the setter methods
void setGapLeftMM( double d ) { gap_left = d; }
void setGapTopMM( double d ) { gap_top = d; }
void setGapVMM( double d ) { gap_v = d; }
void setGapHMM( double d ) { gap_h = d; }
void setWidthMM( double d ) { m_width = d; }
void setHeightMM( double d ) { m_height = d; }
// inch or milimeters are taken as input
// according to the users preferrences
void setGapLeft( double d );
void setGapTop( double d );
void setGapV( double d );
void setGapH( double d );
void setWidth( double d );
void setHeight( double d );
void operator=(const Measurements & rhs );
/** return the localized string that should be appended
* to a measurement number visible to the user. I.e.
* "mm" or "in".
*/
static const QString & system() { Measurements::init(); return m_string; }
/** return the measurements system to be used.
*/
static int measurementSystem() { Measurements::init(); return m_system; }
private:
/** initialize measurements with the correctly
* measurements system to be used from KDE.
*/
static void init();
void defaultMeasurements();
double mmToPixel( double mm, const QPaintDevice* device, int mode = DpiX ) const;
/** Measurement system to use:
* milimeters or inch
*/
static int m_system;
static QString m_string;
int num_h;
int num_v;
double gap_left;
double gap_top;
double gap_v;
double gap_h;
double m_width;
double m_height;
};
#endif
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