// Text.hh for FbTk - text utils
// Copyright (c) 2002 - 2003 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// $Id$

#ifndef FBTK_TEXT_HH
#define FBTK_TEXT_HH

#include <sys/types.h>

namespace FbTk {

class Font;

enum Justify {LEFT, RIGHT, CENTER};
// clockwise
enum Orientation { ROT0=0, ROT90, ROT180, ROT270 };

/**
   Aligns the text after max width and bevel
 */
int doAlignment(int max_width, int bevel, FbTk::Justify justify, 
                const FbTk::Font &font, const char * const text, 
                size_t textlen, size_t &newlen);

/**
   There are 3 interesting translations:
   1) Coords = simple rotation of coordinates
   2) Position = adjusting (x,y) coordinates to use to position a box with X coords
   3) Size = swapping of width and height if necessary
 */


// translate coordinates from ROT0 into different orientations
// coords are relative to rot0 0,0 position
// Need width and height of the area being rotated (in ROT0 coords)

inline void translateCoords(Orientation orient, int &x, int &y, unsigned int w, unsigned int h) {

    int orig_x = x;
    int orig_y = y;

    switch(orient) {
    case ROT0:
        break;
    case ROT90:
        x = h - orig_y;
        y = orig_x;
        break;
    case ROT180:
        x = w - orig_x;
        y = h - orig_y;
        break;
    case ROT270:
        x = orig_y;
        y = w - orig_x;
        break;
    }

}

// still require w and h in ROT0 coords
inline void untranslateCoords(Orientation orient, int &orig_x, int &orig_y, unsigned int w, unsigned int h) {

    int x = orig_x;
    int y = orig_y;

    switch(orient) {
    case ROT0:
        break;
    case ROT90:
        orig_y = h - x;
        orig_x = y;
        break;
    case ROT180:
        orig_x = w - x;
        orig_y = h - y;
        break;
    case ROT270:
        orig_y = x;
        orig_x = w - y;
        break;
    }

}

// When positioning an X11 box inside another area, we need to
// relocate the x,y coordinates
inline void translatePosition(Orientation orient, int &x, int &y, unsigned int w, unsigned int h, unsigned int bw) {

    switch(orient) {
    case ROT0:
        break;
    case ROT90:
        x -= h + 2*bw;
        break;
    case ROT180:
        x -= w + 2*bw;
        y -= h + 2*bw;
        break;
    case ROT270:
        y -= w + 2*bw;
        break;
    }

}

inline void translateSize(Orientation orient, unsigned int &w, unsigned int &h) {
    if (orient == ROT0 || orient == ROT180)
        return;

    unsigned int tmp;
    tmp = w;
    w = h;
    h = tmp;

}

} // end namespace FbTk

#endif // FBTK_TEXT_HH
