wesnoth/src/marked-up_text.hpp
2008-02-16 08:47:16 +00:00

89 lines
3.3 KiB
C++

/* $Id$ */
/*
Copyright (C) 2003 - 2008 by David White <dave@whitevine.net>
Part of the Battle for Wesnoth Project http://www.wesnoth.org/
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2
or at your option any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY.
See the COPYING file for more details.
*/
//! @file marked-up_text.hpp
//!
#ifndef MARKED_UP_TEXT_HPP_INCLUDED
#define MARKED_UP_TEXT_HPP_INCLUDED
class CVideo;
#include <SDL_video.h>
#include <string>
namespace font {
//! Standard markups for color, size, font, images.
extern const char LARGE_TEXT, SMALL_TEXT, BOLD_TEXT, NORMAL_TEXT, NULL_MARKUP, BLACK_TEXT, GRAY_TEXT,
GOOD_TEXT, BAD_TEXT, GREEN_TEXT, RED_TEXT, COLOR_TEXT, YELLOW_TEXT, IMAGE;
//Function to draw text on the screen. The text will be clipped to area.
//If the text runs outside of area horizontally, an ellipsis will be displayed
//at the end of it.
//If use_tooltips is true, then text with an ellipsis will have a tooltip
//set for it equivalent to the entire contents of the text.
//
//Some very basic 'markup' will be done on the text:
// - any line beginning in # will be displayed in BAD_COLOUR (red)
// - any line beginning in @ will be displayed in GOOD_COLOUR (green)
// - any line beginning in + will be displayed with size increased by 2
// - any line beginning in - will be displayed with size decreased by 2
// - any line beginning with 0x0n will be displayed in the colour of side n
//
//The above special characters can be quoted using a C-style backslash.
//
//A bounding rectangle of the text is returned. If gui is NULL, then the
//text will not be drawn, and a bounding rectangle only will be returned.
SDL_Rect draw_text(CVideo* gui, const SDL_Rect& area, int size,
const SDL_Color& colour, const std::string& text,
int x, int y, bool use_tooltips = false, int style = 0);
//- Calculate the size of a text (in pixels) if it were to be drawn.
SDL_Rect text_area(const std::string& text, int size, int style=0);
// Copy string, but without tags at the beginning
std::string del_tags(const std::string& text);
// Copy string, but with NULL MARKUP tag at the beginning of each line
std::string nullify_markup(const std::string& text);
//- Determine if char is one of the special chars used as markup.
bool is_format_char(char c);
//- Create string of color-markup, such as "<255,255,0>" for yellow.
std::string color2markup(const SDL_Color color);
//- Wrap text.
//- If the text exceedes the specified max width, wrap it one a word basis.
//- If this is not possible, e.g. the word is too big to fit, wrap it on a
//- char basis.
std::string word_wrap_text(const std::string& unwrapped_text, int font_size, int max_width, int max_height=-1, int max_lines=-1);
//- Draw text on the screen, fit text to maximum width, no markup, no tooltips.
SDL_Rect draw_wrapped_text(CVideo* gui, const SDL_Rect& area, int font_size,
const SDL_Color& colour, const std::string& text,
int x, int y, int max_width);
//- Chop up one long string of text into lines.
size_t text_to_lines(std::string& text, size_t max_length);
} // end namespace font
#endif // MARKED_UP_TEXT_HPP_INCLUDED