pelya
97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
/*
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* Copyright (C) 2005 Ronald Lamprecht
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef GUI_TF_HH_INCLUDED
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#define GUI_TF_HH_INCLUDED
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#include "gui/widgets.hh"
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namespace enigma { namespace gui {
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/**
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* Gui widget for simple text insertion. Cursor keys, backspace and delete,
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* home and end are supported. As a widget it handels utf-8 strings. But
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* in contrast to other widget there is of course no gettext l10n translation.
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* This widget is designed to be part of a menu.
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* <par>
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* ToDo: supply full Linux umlaut support;
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* add hook for external or subclass char insertion validation
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* (NumberField, ...);
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* move mouse cursor out of Textfield without deselection
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*/
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class TextField : public Button {
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public:
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/**
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* Creates a boarderd text input field.
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* @param t preset utf-8 input string
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* @param al currently unused
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*/
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TextField(const std::string &t = "", ActionListener *al=0);
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/**
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* resets the input string.
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* @param t new utf-8 input string
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*/
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void set_text(const std::string &t);
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/**
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* returns the inserted text
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* @return the utf-8 coded string
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*/
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std::string getText();
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void setInvalidChars(std::string forbiddenChars); // currently limited to 1st coding page
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void setMaxChars(int max);
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bool wasLastActionReturn();
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// Widget interface.
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virtual void tick (double dtime);
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virtual bool on_event(const SDL_Event &/*e*/);
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void draw(ecl::GC &gc, const ecl::Rect &r);
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protected:
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double cursorTime;
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bool showCursor;
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private:
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std::string textPreCursor;
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std::string textPostCursor;
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/**
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* a byte vector describing for each utf-8 character the number of
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* occupied bytes in the string.
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*/
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std::vector<unsigned char> charSizesPreCursor;
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/**
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* a byte vector describing for each utf-8 character the number of
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* occupied bytes in the string. This vector is in reverse order to
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* the string itself!!
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*/
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std::vector<unsigned char> charSizesPostCursor;
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bool isLimitedToValidChars;
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std::string validChars;
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std::string invalidChars;
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int maxChars;
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bool isLastActionReturn;
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static ecl::Font *menufont;
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};
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}} // namespace enigma::gui
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#endif
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