void nFile::Close()
{
nAssert(m_Handle);
CloseHandle(m_Handle);
m_Handle = NULL;
}
bool nFile::Open(const nString& path,unsigned long flags)
{
nAssert(!m_Handle);
unsigned long access = 0;
unsigned long share = 0;
unsigned long create = 0;
if(flags & OpenFlagShareRead)
share |= FILE_SHARE_READ;
if(flags & OpenFlagShareWrite)
share |= FILE_SHARE_WRITE;
if(flags & OpenFlagCreate)
create |= CREATE_ALWAYS;
if(flags & OpenFlagExisting)
create |= OPEN_EXISTING;
if(flags & OpenFlagRead)
access |= GENERIC_READ;
if(flags & OpenFlagWrite)
access |= GENERIC_WRITE;
m_Handle = CreateFile(path.c_str(),access,share,NULL,create,NULL,NULL);
if(m_Handle == INVALID_HANDLE_VALUE)
{
m_Handle = NULL;
return false;
}
return true;
}
void nGraphics::GetTextSize(ID3DXFont* font,const char* text,nSize* size,unsigned long flags)
{
UNREFERENCED_PARAMETER(flags);
nAssert(font);
GetTextExtentPoint(font->GetDC(),text,strlen(text),(LPSIZE)size);
}
void nGraphics::SpriteEnd()
{
nAssert(m_pSprite);
m_pSprite->End();
m_pStateBlocks[0]->Apply();
}
unsigned long nFile::Write(const void* buffer,unsigned long size)
{
nAssert(m_Handle);
unsigned long written = 0;
WriteFile(m_Handle,buffer,size,&written,NULL);
return written;
}
unsigned long nFile::Read(void* buffer,unsigned long size)
{
nAssert(m_Handle);
unsigned long read = 0;
ReadFile(m_Handle,buffer,size,&read,NULL);
return read;
}
void nGraphics::DrawText(ID3DXFont* font,const nRect& rect,const char* text,unsigned long flags,const nColor& color)
{
nAssert(font);
// Don't draw if fully transparent
if(color.a <= 0.0f)
return;
// Draw the text
font->DrawText(m_pSprite,text,-1,(LPRECT)&rect,flags,color);
}
void nGraphics::SetClipper(const nRect* rect)
{
nAssert(m_pDevice);
if(rect)
{
m_pDevice->SetRenderState(D3DRS_SCISSORTESTENABLE,TRUE);
m_pDevice->SetScissorRect((LPRECT)rect);
}
else
m_pDevice->SetRenderState(D3DRS_SCISSORTESTENABLE,FALSE);
}
bool nGraphics::GetClipper(nRect* rect)
{
nAssert(m_pDevice);
unsigned long val = 0;
m_pDevice->GetRenderState(D3DRS_SCISSORTESTENABLE,&val);
if(rect)
m_pDevice->GetScissorRect((LPRECT)rect);
return val ? true : false;
}
nString nKeyboard::GetKeyName(unsigned long key)
{
nAssert(m_pDevice);
DIDEVICEOBJECTINSTANCE doi;
ZeroMemory(&doi,sizeof(DIDEVICEOBJECTINSTANCE));
doi.dwSize = sizeof(DIDEVICEOBJECTINSTANCE);
unsigned long dwOfs = key;
m_pDevice->GetObjectInfo(&doi,dwOfs,DIPH_BYOFFSET);
return doi.tszName;
}
void nGraphics::DrawCircle(const nPoint& point,float radius,unsigned long elements,const nColor& color)
{
nAssert(elements);
nVector2* lines = new nVector2[elements];
for(unsigned long i = 0; i < elements; i++)
lines[i] = nVector2(point.x + radius * sinf(D3DX_PI*2/(elements-1) * i),point.y + radius * cosf(D3DX_PI*2/(elements-1) * i));
DrawLines(lines,elements,color);
nSafeFree(lines);
}
unsigned long nFile::Seek(unsigned long position,SeekFrom from)
{
nAssert(m_Handle);
unsigned long fr = 0;
if(from == SeekFromStart)
fr = FILE_BEGIN;
else if(from == SeekFromCurrent)
fr = FILE_CURRENT;
else if(from == SeekFromEnd)
fr = FILE_END;
return SetFilePointer(m_Handle,position,NULL,fr);
}
void nOrtho(float left, float top, float right, float bottom, float near, float far, float* m)
{
nAssert(far != near);
const float rightMinusLeft = right - left;
const float topMinusBottom = top - bottom;
const float farMinusNear = far - near;
m[0] = 2 / rightMinusLeft;
m[1] = m[2] = m[3] = m[4] = 0.0f;
m[5] = 2 / topMinusBottom;
m[6] = m[7] = m[8] = m[9] = 0.0f;
m[10] = -2 / farMinusNear;
m[11] = 0;
m[12] = -(right + left) / rightMinusLeft;
m[13] = -(top + bottom) / topMinusBottom;
m[14] = -(far + near) / farMinusNear;
m[15] = 1.0f;
}
bool nKeyboard::Update()
{
nAssert(m_pDevice);
CopyMemory(&m_Keys[0],&m_Keys[1],sizeof(m_Keys[0]));
// Get the keystates from the device
HRESULT hr = m_pDevice->GetDeviceState(sizeof(m_Keys[1]),&m_Keys[1]);
if(hr != S_OK)
{
// If input is lost then acquire and keep trying
hr = m_pDevice->Acquire();
while(hr == DIERR_INPUTLOST)
hr = m_pDevice->Acquire();
return false;
}
return true;
}
void nGraphics::DrawShadowText(ID3DXFont* font,const nRect& rect,const char* text,unsigned long flags,const nColor& color)
{
nAssert(font);
// Don't draw if fully transparent
if(color.a <= 0.0f)
return;
// Draw the text
static nRect rect2;
static nColor color2;
rect2 = rect;
rect2.Offset(1,1);
color2.r = color2.g = color2.b = 0.0f;
color2.a = color.a * 0.1f;
DrawText(font,rect2,text,flags,color2);
DrawText(font,rect,text,flags,color);
}
unsigned long nFile::Read(nString* value)
{
unsigned long size = 0;
char* buffer = NULL;
unsigned long read = Read(&size);
if(!size)
return read;
buffer = nMalloc(char[size + 1]);
nAssert(buffer);
read += Read(buffer,size);
buffer[size] = NULL;
*value = buffer;
nSafeFree(buffer);
return read;
}
void nGraphics::DrawPrintShadowLine(ID3DXFont* font,const nRect& rect,const char* text,float delta,unsigned long flags,const nColor& color)
{
nAssert(font);
// Don't draw if fully transparent
if(color.a <= 0.0f)
return;
nString textString(text);
nColor color2(color);
if(delta < 0.0f)
color2.a = 0.0f;
else if(delta < 1.0f)
color2.a *= cubicf(0.0f,1.0f,delta);
else if(delta > textString.size())
color2.a = 0.0f;
else if(delta > textString.size() - 1.0f)
color2.a *= cubicf(0.0f,1.0f,textString.size() - min(delta,textString.size()));
unsigned long numChars = min(max(0.0f,delta),textString.size());
numChars = textString.size() * cubicf(0.0f,1.0f,(float)numChars/(float)textString.size()); // Comment-out for no cubic interpolation
textString.erase(textString.end() - textString.size() + numChars,textString.end());
nSize size;
GetTextSize(font,textString.c_str(),&size,NULL);
nSize space;
GetTextSize(font," ",&space,NULL);
space.cx = 8;
// Draw the text
DrawShadowText(font,rect,textString.c_str(),flags,color);
// Draw block
DrawShadowFillRect(nRect(rect.left + size.cx,rect.top,rect.left + size.cx + space.cx,rect.top + space.cy),color2);
}
void nGraphics::DrawLines(const nVector2* lines,unsigned long count,const nColor& color)
{
nAssert(m_pLine);
m_pLine->Draw((LPD3DXVECTOR2)lines,count,color);
}
void nGraphics::SpriteFlush()
{
nAssert(m_pSprite);
m_pSprite->Flush();
}
bool nFile::Flush()
{
nAssert(m_Handle);
return FlushFileBuffers(m_Handle) ? true : false;
}
unsigned long nFile::GetSize()
{
nAssert(m_Handle);
return GetFileSize(m_Handle,NULL); // TODO Won't work correctly with 64-bit file sizes
}
unsigned long nFile::Tell()
{
nAssert(m_Handle);
return this->Seek(0,SeekFromCurrent);
}
void nGraphics::GetTextRect(ID3DXFont* font,const char* text,nRect* rect,unsigned long flags)
{
nAssert(font);
font->DrawText(m_pSprite,text,-1,(LPRECT)rect,flags|DT_CALCRECT,0xFFFFFFFF);
}
