112 lines
2.8 KiB
C++
Executable File
112 lines
2.8 KiB
C++
Executable File
/*
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GUI Object - Input [box]
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by Gustav Larsson
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gee@pyro.nu
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--Overview--
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GUI Object representing a text field you can edit.
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--More info--
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Check GUI.h
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*/
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#ifndef CInput_H
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#define CInput_H
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//--------------------------------------------------------
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// Includes / Compiler directives
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//--------------------------------------------------------
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#include "GUI.h"
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// TODO Gee: Remove
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class IGUIScrollBar;
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//--------------------------------------------------------
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// Macros
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//--------------------------------------------------------
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//--------------------------------------------------------
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// Types
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//--------------------------------------------------------
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//--------------------------------------------------------
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// Declarations
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//--------------------------------------------------------
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/**
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* @author Gustav Larsson
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*
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* Text field where you can input and edit the text.
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*
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* It doesn't use IGUITextOwner, because we don't need
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* any other features than word-wrapping, and we need to be
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* able to rapidly change the string.
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*
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* @see IGUIObject
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*/
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class CInput : public IGUIScrollBarOwner
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{
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GUI_OBJECT(CInput)
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public:
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CInput();
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virtual ~CInput();
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virtual void ResetStates() { IGUIScrollBarOwner::ResetStates(); }
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protected:
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/**
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* Handle Messages
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*
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* @param Message GUI Message
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*/
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virtual void HandleMessage(const SGUIMessage &Message);
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/**
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* Handle events manually to catch keyboard inputting.
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*/
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virtual int ManuallyHandleEvent(const SDL_Event* ev);
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// void InsertMessage(const wchar_t* szMessage, ...);
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// void InsertChar(const int szChar, const wchar_t cooked);
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/**
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* Draws the Text
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*/
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virtual void Draw();
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// Calculate m_CharacterPosition
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// the main task for this function is to perfom word-wrapping
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// You input from which character it has been changed, because
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// if we add a character to the very last end, we don't want
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// process everything all over again! Also notice you can
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// specify a 'to' also, it will only be used though if a '\n'
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// appears, because then the word-wrapping won't change after
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// that.
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void UpdateText(int from=0, int to_before=-1, int to_after=-1);
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protected:
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// Cursor position
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int m_iBufferPos;
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// the outer vector is lines, and the inner is X positions
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// in a row. So that we can determine where characters are
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// placed. It's important because we need to know where the
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// pointer should be placed when the input control is pressed.
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struct SRow
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{
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int m_ListStart; // Where does the Row starts
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std::vector<float> m_ListOfX; // List of X values for each character.
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};
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// List of rows, list because I use a lot of iterators, and change
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// its size continuously, it's easier and safer if I know the
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// iterators never gets invalidated.
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std::list< SRow > m_CharacterPositions;
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};
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#endif
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