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sf-pippijn |
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/* text.hh |
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* This file is part of ndk library |
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* Copyright (c) 2003,2004 by Stanislav Ievlev |
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* |
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* This file is covered by the GNU Library General Public License, |
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* which should be included with libndk as the file COPYING. |
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*/ |
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#pragma once |
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#include <ndk/color.hh> |
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#include <ndk/frame.hh> |
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#include <ndk/pad.hh> |
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namespace ndk |
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{ |
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struct color; |
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} |
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namespace ndk |
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{ |
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// this is a simple container of the multi-line text |
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struct text |
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: frame |
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{ |
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enum possible_events |
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{ |
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// system events generated by text widget |
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changed |
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}; |
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enum wrap_type |
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{ |
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no_wrap, |
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wrap |
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}; |
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explicit text (std::string const &title = "", panel *parent = 0, wrap_type wrapping = no_wrap); |
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void add_text (color c, std::string const &str); // append text to the buffer |
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void set_text (color c, std::string const &str); // set current text of the buffer, same as clear+add+draw |
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template<typename... Args> |
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void add_text (color c, char const *fmt, Args const &...args) |
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{ |
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char buf[BUFSIZ]; |
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add_text (c, std::string (buf, snprintf (buf, sizeof buf, fmt, args...))); |
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} |
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bool right (); // move text viewport to the right |
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bool left (); // move text viewport to the left |
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bool up (); // move text viewport to the up |
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bool down (); // move text viewport to the down |
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void clear (); // clear all text |
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int length () const; // total length of the text |
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int last_line () const; // number of the last visible line |
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virtual void resize (int w, int h); |
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private: |
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event::result at_keyboard (const keyboard &ev); |
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virtual void draw (); // draw frame on the panel |
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int string_height (const std::string &str); // number of strings |
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int string_width (const std::string &str); // maximum string length |
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int x_; // first viewport position coordinate |
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int y_; // second viewport position coordinate |
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pad pad_; // internal container for all inner text |
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wrap_type wrapping_; // made or not wrapping of the inner strings |
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}; |
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} |
