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Platform_Win32_Input_KeyboardDevice.cpp

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//*** Platform_Win32_Input_KeyboardDevice.cpp ***

#include "Platform_Win32_Input_KeyboardDevice.h"
#include "Platform_OS.h"

#define WIN32_LEAN_AND_MEAN 
#define VC_EXTRALEAN
#include <windows.h>

//*** Constructor ***

Platform_Win32_Input_KeyboardDevice::Platform_Win32_Input_KeyboardDevice():
   characterBufferCount_(0)
   {
   for (int i=0; i<256; i++)
      {
      charStates_[i]=false;
      charKeycodes_[i]=0;
      }
   }


//*** Destructor ***

Platform_Win32_Input_KeyboardDevice::~Platform_Win32_Input_KeyboardDevice()
   {
   }


//*** IsKeyDown ***

bool Platform_Win32_Input_KeyboardDevice::IsKeyDown(KeyCode keyCode) const
   {
   if ((Platform::GetPlatform_OS() && Platform::GetPlatform_OS()->HasFocus()) && GetAsyncKeyState(keyCode)!=0)
      {
      return true;
      }

   return false;
   }


//*** IsCharDown ***

bool Platform_Win32_Input_KeyboardDevice::IsCharDown(char ascii) const
   {
   return charStates_[(unsigned char)ascii];
   }


//*** SetCharPressed ***

void Platform_Win32_Input_KeyboardDevice::SetCharPressed(char ascii, unsigned char  keycode)
   {
   charStates_[(unsigned char)ascii]=true;
   charKeycodes_[(unsigned char)ascii]=keycode;
   AddBufferedCharacter(ascii);
   }


//*** SetCharReleased ***

void Platform_Win32_Input_KeyboardDevice::SetCharReleased(unsigned char  keycode)
   {
   for (int i=0; i<256; i++)
      {
      if (charKeycodes_[i]==keycode)
         {
         charStates_[i]=false;
         return;
         }
      }
   }


//*** AddBufferedCharacter ***

void Platform_Win32_Input_KeyboardDevice::AddBufferedCharacter(char ascii)
   {
   while (characterBufferCount_>=256)
      {
      for (int i=1; i<characterBufferCount_; i++)
         {
         characterBuffer_[i-1]=characterBuffer_[i];
         }
      characterBufferCount_--;
      }

   characterBuffer_[characterBufferCount_]=ascii;
   characterBufferCount_++;
   }


//*** ClearBufferedCharacters ***

void Platform_Win32_Input_KeyboardDevice::ClearBufferedCharacters() const
   {
   characterBufferCount_=0;
   }


//*** GetBufferedCharacterCount ***

int Platform_Win32_Input_KeyboardDevice::GetBufferedCharacterCount() const
   {
   return characterBufferCount_;
   }


//*** GetBufferedCharacter ***

char Platform_Win32_Input_KeyboardDevice::GetBufferedCharacter(int index) const
   {
   if (index<0 || index>=characterBufferCount_)
      {
      return 0;
      }

   return characterBuffer_[index];
   }

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