querystring_gui.h

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD 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, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #ifndef QUERYSTRING_GUI_H
00013 #define QUERYSTRING_GUI_H
00014 
00015 #include "textbuf_gui.h"
00016 #include "window_gui.h"
00017 
00021 enum HandleEditBoxResult
00022 {
00023   HEBR_EDITING = 0, // Other key pressed.
00024   HEBR_CONFIRM,     // Return or enter key pressed.
00025   HEBR_CANCEL,      // Escape key pressed.
00026   HEBR_NOT_FOCUSED, // Edit box widget not focused.
00027 };
00028 
00032 struct QueryString {
00033   StringID caption;
00034   Textbuf text;
00035   const char *orig;
00036   CharSetFilter afilter;
00037   bool handled;
00038 
00042   QueryString() : orig(NULL)
00043   {
00044   }
00045 
00049   ~QueryString()
00050   {
00051     free((void*)this->orig);
00052   }
00053 
00054 private:
00055   bool HasEditBoxFocus(const Window *w, int wid) const;
00056 public:
00057   void DrawEditBox(Window *w, int wid);
00058   void HandleEditBox(Window *w, int wid);
00059   HandleEditBoxResult HandleEditBoxKey(Window *w, int wid, uint16 key, uint16 keycode, EventState &state);
00060 };
00061 
00062 struct QueryStringBaseWindow : public Window, public QueryString {
00063   char *edit_str_buf;         
00064   const uint16 edit_str_size; 
00065   const uint16 max_chars;     
00066 
00067   QueryStringBaseWindow(uint16 size, uint16 chars = UINT16_MAX) : Window(), edit_str_size(size), max_chars(chars == UINT16_MAX ? size : chars)
00068   {
00069     assert(size != 0);
00070     this->edit_str_buf = CallocT<char>(size);
00071   }
00072 
00073   ~QueryStringBaseWindow()
00074   {
00075     free(this->edit_str_buf);
00076   }
00077 
00078   void DrawEditBox(int wid);
00079   void HandleEditBox(int wid);
00080   HandleEditBoxResult HandleEditBoxKey(int wid, uint16 key, uint16 keycode, EventState &state);
00081 
00086   virtual void OnOpenOSKWindow(int wid);
00087 
00092   virtual void OnOSKInput(int wid) {}
00093 };
00094 
00095 void ShowOnScreenKeyboard(QueryStringBaseWindow *parent, int button, int cancel, int ok);
00096 void UpdateOSKOriginalText(const QueryStringBaseWindow *parent, int button);
00097 
00098 #endif /* QUERYSTRING_GUI_H */

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