//----------------------------------------------------------------//
void MOAIDraw::DrawGrid ( const USRect& rect, u32 xCells, u32 yCells ) {
if ( xCells > 1 ) {
float xStep = rect.Width () / ( float )xCells;
for ( u32 i = 1; i < xCells; ++i ) {
float x = rect.mXMin + (( float )i * xStep );
USVec2D v0 ( x, rect.mYMin );
USVec2D v1 ( x, rect.mYMax );
MOAIDraw::DrawLine ( v0, v1 );
}
}
if ( yCells > 1 ) {
float yStep = rect.Height () / ( float )yCells;
for ( u32 i = 1; i < yCells; ++i ) {
float y = rect.mYMin + (( float )i * yStep );
USVec2D v0 ( rect.mXMin, y );
USVec2D v1 ( rect.mXMax, y );
MOAIDraw::DrawLine ( v0, v1 );
}
}
MOAIDraw::DrawRectOutline ( rect );
}
//----------------------------------------------------------------//
void MOAIGfxDevice::SetScissorRect ( USRect rect ) {
rect.Bless ();
USRect& current = this->mScissorRect;
if ( ( current.mXMin != rect.mXMin ) ||
( current.mYMin != rect.mYMin ) ||
( current.mXMax != rect.mXMax ) ||
( current.mYMax != rect.mYMax )) {
this->Flush ();
USRect deviceRect = this->mFrameBuffer->WndRectToDevice ( rect );
GLint x = ( GLint )deviceRect.mXMin;
GLint y = ( GLint )deviceRect.mYMin;
GLsizei w = ( GLsizei )( deviceRect.Width () + 0.5f );
GLsizei h = ( GLsizei )( deviceRect.Height () + 0.5f );
glScissor ( x, y, w, h );
this->mScissorRect = rect;
glEnable ( GL_SCISSOR_TEST );
}
}
//----------------------------------------------------------------//
void MOAIDraw::DrawGrid ( USRect& rect, u32 xCells, u32 yCells ) {
MOAILineBrush glLine;
if ( xCells > 1 ) {
float xStep = rect.Width () / ( float )xCells;
for ( u32 i = 1; i < xCells; ++i ) {
float x = rect.mXMin + (( float )i * xStep );
USVec2D v0 ( x, rect.mYMin );
USVec2D v1 ( x, rect.mYMax );
glLine.SetVerts ( v0, v1 );
glLine.Draw ();
}
}
if ( yCells > 1 ) {
float yStep = rect.Height () / ( float )yCells;
for ( u32 i = 1; i < yCells; ++i ) {
float y = rect.mYMin + (( float )i * yStep );
USVec2D v0 ( rect.mXMin, y );
USVec2D v1 ( rect.mXMax, y );
glLine.SetVerts ( v0, v1 );
glLine.Draw ();
}
}
MOAIDraw::DrawRectOutline ( rect );
}
//----------------------------------------------------------------//
void MOAIGfxDevice::ResetState () {
this->mTop = 0;
this->mPrimCount = 0;
// turn off texture
#if USE_OPENGLES1
glDisable ( GL_TEXTURE_2D );
#endif
this->mTextureUnits [ 0 ] = 0;
// turn off blending
glDisable ( GL_BLEND );
this->mBlendEnabled = false;
// disable backface culling
glDisable ( GL_CULL_FACE );
this->mCullFunc = 0;
// disable depth test
glDisable ( GL_DEPTH_TEST );
this->mDepthFunc = 0;
// enable depth write
glDepthMask ( true );
this->mDepthMask = true;
// clear the vertex format
this->SetVertexFormat ();
// clear the shader
this->mShader = 0;
// reset the pen width
this->mPenWidth = 1.0f;
glLineWidth (( GLfloat )this->mPenWidth );
// reset the point size
this->mPointSize = 1.0f;
// reset the scissor rect
MOAIGfxDevice& device = MOAIGfxDevice::Get ();
USRect scissorRect = device.GetRect ();
glScissor (( int )scissorRect.mXMin, ( int )scissorRect.mYMin, ( int )scissorRect.Width (), ( int )scissorRect.Height ());
this->mScissorRect = scissorRect;
#if USE_OPENGLES1
// fixed function reset
if ( !this->IsProgrammable ()) {
// reset the current vertex color
glColor4f ( 1.0f, 1.0f, 1.0f, 1.0f );
// reset the point size
glPointSize (( GLfloat )this->mPointSize );
}
#endif
}
//----------------------------------------------------------------//
void MOAIGfxDevice::SetScissorRect ( const USRect& rect ) {
USRect& current = this->mScissorRect;
if ( ( current.mXMin != rect.mXMin ) ||
( current.mYMin != rect.mYMin ) ||
( current.mXMax != rect.mXMax ) ||
( current.mYMax != rect.mYMax )) {
this->Flush ();
glScissor (( int )rect.mXMin, ( int )rect.mYMin, ( int )rect.Width (), ( int )rect.Height ());
this->mScissorRect = rect;
}
}
//----------------------------------------------------------------//
void MOAIGfxDevice::SetViewport ( const USRect& viewport ) {
// set us up the viewport
GLint x = ( GLint )viewport.mXMin;
GLint y = ( GLint )viewport.mYMin;
GLsizei w = ( GLsizei )( viewport.Width () + 0.5f );
GLsizei h = ( GLsizei )( viewport.Height () + 0.5f );
glViewport ( x, y, w, h );
this->mViewRect = viewport;
}
//----------------------------------------------------------------//
void MOAIGfxDevice::SetViewRect ( USRect rect ) {
USRect deviceRect = rect;
deviceRect = this->mFrameBuffer->WndRectToDevice ( rect );
GLint x = ( GLint )deviceRect.mXMin;
GLint y = ( GLint )deviceRect.mYMin;
GLsizei w = ( GLsizei )( deviceRect.Width () + 0.5f );
GLsizei h = ( GLsizei )( deviceRect.Height () + 0.5f );
glViewport ( x, y, w, h );
this->mViewRect = rect;
}
//----------------------------------------------------------------//
USMatrix4x4 MOAIGfxDevice::GetWndToNormMtx () const {
USRect rect = this->mViewRect;
float hWidth = rect.Width () * 0.5f;
float hHeight = rect.Height () * 0.5f;
// Inv Wnd
USMatrix4x4 wndToNorm;
wndToNorm.Translate ( -hWidth - rect.mXMin, -hHeight - rect.mYMin, 0.0f );
USMatrix4x4 mtx;
mtx.Scale (( 1.0f / hWidth ), -( 1.0f / hHeight ), 1.0f );
wndToNorm.Append ( mtx );
return wndToNorm;
}
//----------------------------------------------------------------//
USMatrix4x4 MOAIGfxDevice::GetNormToWndMtx () const {
USRect rect = this->mViewRect;
float hWidth = rect.Width () * 0.5f;
float hHeight = rect.Height () * 0.5f;
// Wnd
USMatrix4x4 normToWnd;
normToWnd.Scale ( hWidth, -hHeight, 1.0f );
USMatrix4x4 mtx;
mtx.Translate ( hWidth + rect.mXMin, hHeight + rect.mYMin, 0.0f );
normToWnd.Append ( mtx );
return normToWnd;
}
//----------------------------------------------------------------//
void MOAIGfxDevice::SetViewport ( const USRect& viewport ) {
// set us up the viewport
GLint x = ( GLint )viewport.mXMin;
GLint y = ( GLint )viewport.mYMin;
GLsizei w = ( GLsizei )( viewport.Width () + 0.5f );
GLsizei h = ( GLsizei )( viewport.Height () + 0.5f );
glViewport (
( GLint )( x * this->mDeviceScale ),
( GLint )( y * this->mDeviceScale ),
( GLsizei )( w * this->mDeviceScale ),
( GLsizei )( h * this->mDeviceScale )
);
this->mViewRect = viewport;
}
//----------------------------------------------------------------//
USMatrix4x4 MOAIGfxDevice::GetWorldToWndMtx ( float xScale, float yScale ) const {
USMatrix4x4 worldToWnd;
USMatrix4x4 mtx;
USRect rect = this->GetViewRect ();
float hWidth = rect.Width () * 0.5f;
float hHeight = rect.Height () * 0.5f;
// viewproj
worldToWnd = this->GetViewProjMtx ();
// wnd
mtx.Scale ( hWidth * xScale, hHeight * yScale, 1.0f );
worldToWnd.Append ( mtx );
mtx.Translate ( hWidth + rect.mXMin, hHeight + rect.mYMin, 0.0f );
worldToWnd.Append ( mtx );
return worldToWnd;
}
//----------------------------------------------------------------//
USMatrix4x4 MOAIGfxDevice::GetWndToWorldMtx () const {
USMatrix4x4 wndToWorld;
USMatrix4x4 mtx;
USRect rect = this->GetViewRect ();
float hWidth = rect.Width () * 0.5f;
float hHeight = rect.Height () * 0.5f;
// Inv Wnd
wndToWorld.Translate ( -hWidth - rect.mXMin, -hHeight - rect.mYMin, 0.0f );
mtx.Scale (( 1.0f / hWidth ), -( 1.0f / hHeight ), 1.0f );
wndToWorld.Append ( mtx );
// inv viewproj
mtx = this->GetViewProjMtx ();
mtx.Inverse ();
wndToWorld.Append ( mtx );
return wndToWorld;
}
//----------------------------------------------------------------//
void MOAITextDesigner::BuildLayout ( MOAITextBox& textBox ) {
if ( !textBox.mStyleMap.GetTop ()) return;
this->mStr = textBox.mText;
this->mIdx = textBox.mCurrentPageIdx;
this->mStyleSpan = 0;
this->mStyle = 0;
int tokenIdx = this->mIdx;
int lineIdx = this->mIdx;
float width = textBox.mFrame.Width ();
float height = textBox.mFrame.Height ();
u32 lineStart = 0;
u32 lineSize = 0;
u32 tokenStart = 0;
u32 tokenSize = 0;
USRect lineRect;
lineRect.Init ( 0.0f, 0.0f, 0.0f, 0.0f );
USRect tokenRect;
tokenRect.Init ( 0.0f, 0.0f, 0.0f, 0.0f );
float tokenAscent = 0.0f;
float lineAscent = 0.0f;
USVec2D pen;
pen.Init ( 0.0f, 0.0f );
MOAIGlyph* glyph = 0;
MOAIGlyph* prevGlyph = 0;
textBox.mMore = true;
bool more = true;
while ( more ) {
u32 c = this->NextChar ( textBox );
float scale = textBox.mGlyphScale * ( this->mStyle ? this->mStyle->mScale : 1.0f );
bool acceptToken = false;
bool acceptLine = false;
if ( MOAIFont::IsControl ( c )) {
if ( c == '\n' ) {
tokenIdx = this->mIdx - 1;
tokenStart = textBox.mSprites.GetTop ();
acceptToken = true;
acceptLine = true;
if ( !tokenRect.Height ()) {
tokenRect.mYMax += this->mDeck->mHeight * scale;
}
}
else if ( c == 0 ) {
textBox.mMore = false;
tokenIdx = this->mIdx - 1;
tokenStart = textBox.mSprites.GetTop ();
acceptToken = true;
acceptLine = true;
more = false;
}
}
else {
glyph = this->mDeck->GetGlyph ( c );
if ( !glyph ) continue;
if ( glyph->mAdvanceX == 0.0f ) continue;
// apply kerning
if ( prevGlyph ) {
MOAIKernVec kernVec = prevGlyph->GetKerning ( glyph->mCode );
pen.mX += kernVec.mX * scale;
}
prevGlyph = glyph;
if ( MOAIFont::IsWhitespace ( c )) {
if ( tokenSize ) {
acceptToken = true;
}
}
else {
float glyphBottom = pen.mY + ( this->mDeck->mHeight * scale );
// handle new token
if ( !tokenSize ) {
tokenIdx = this->mIdx - 1;
tokenStart = textBox.mSprites.GetTop ();
tokenRect.Init ( pen.mX, pen.mY, pen.mX, glyphBottom );
tokenAscent = this->mDeck->mAscent * scale;
}
// check for overrun
float glyphRight = pen.mX + (( glyph->mBearingX + glyph->mWidth ) * scale );
bool overrun = glyphRight > width;
acceptLine = ( lineSize && overrun );
if ( acceptLine || !overrun ) {
textBox.PushSprite ( this->mIdx - 1, *glyph, *this->mStyle, pen.mX, pen.mY, scale );
tokenRect.mXMax = glyphRight;
tokenSize++;
}
}
pen.mX += glyph->mAdvanceX * scale;
}
if ( acceptToken ) {
lineRect.Grow ( tokenRect );
lineSize += tokenSize;
lineAscent = tokenAscent > lineAscent ? tokenAscent : lineAscent;
tokenSize = 0;
}
if ( acceptLine ) {
textBox.PushLine ( lineStart, lineSize, lineRect, lineAscent );
// end line
pen.mY += lineRect.Height () + textBox.mLineSpacing;
lineRect.Init ( 0.0f, pen.mY, 0.0f, pen.mY );
// next line
lineIdx = tokenIdx;
lineStart = tokenStart;
lineSize = 0;
lineAscent = 0.0f;
prevGlyph = 0;
if ( tokenSize ){
// slide the current token (if any) back to the origin
for ( u32 i = 0; i < tokenSize; ++i ) {
MOAITextSprite& sprite = textBox.mSprites [ tokenStart + i ];
sprite.mX -= tokenRect.mXMin;
sprite.mY = pen.mY;
}
pen.mX -= tokenRect.mXMin;
tokenRect.Init ( 0.0f, pen.mY, tokenRect.Width (), pen.mY + tokenRect.Height ());
}
else {
pen.mX = 0.0f;
tokenRect.Init ( 0.0f, pen.mY, 0.0f, pen.mY + this->mDeck->mHeight );
}
}
// if we overrun height, then back up to the start of the current line
if ( tokenRect.mYMax > height ) {
textBox.mSprites.SetTop ( lineStart );
textBox.mNextPageIdx = lineIdx;
more = false;
}
}
if ( textBox.mSprites.GetTop () == 0 ) {
textBox.mMore = false;
return;
}
float yOff = textBox.mFrame.mYMin;
float layoutHeight = lineRect.mYMax;
switch ( textBox.mVAlign ) {
case MOAITextBox::CENTER_JUSTIFY:
yOff = ( yOff + ( height * 0.5f )) - ( layoutHeight * 0.5f );
case MOAITextBox::LEFT_JUSTIFY:
break;
case MOAITextBox::RIGHT_JUSTIFY:
yOff = textBox.mFrame.mYMax - layoutHeight;
}
u32 totalLines = textBox.mLines.GetTop ();
for ( u32 i = 0; i < totalLines; ++i ) {
MOAITextLine& line = textBox.mLines [ i ];
float xOff = textBox.mFrame.mXMin;
float lineWidth = line.mRect.Width ();
switch ( textBox.mHAlign ) {
case MOAITextBox::CENTER_JUSTIFY:
xOff = ( xOff + ( width * 0.5f )) - ( lineWidth * 0.5f );
case MOAITextBox::LEFT_JUSTIFY:
break;
case MOAITextBox::RIGHT_JUSTIFY:
xOff = textBox.mFrame.mXMax - lineWidth;
}
line.mRect.Offset ( xOff, yOff );
float spriteYOff = yOff + line.mAscent;
MOAIAnimCurve* curve = 0;
if ( textBox.mCurves ) {
curve = textBox.mCurves [ i % textBox.mCurves.Size ()];
}
for ( u32 j = 0; j < line.mSize; ++j ) {
MOAITextSprite& sprite = textBox.mSprites [ line.mStart + j ];
sprite.mX += xOff;
if ( curve ) {
sprite.mY += spriteYOff + curve->GetFloatValue (( sprite.mX - textBox.mFrame.mXMin ) / width );
}
else {
sprite.mY += spriteYOff;
}
}
}
}
//----------------------------------------------------------------//
void MOAIGfxDevice::ResetState () {
for ( u32 i = 0; i < TOTAL_VTX_TRANSFORMS; ++i ) {
this->mVertexTransforms [ i ].Ident ();
}
this->mUVTransform.Ident ();
this->mCpuVertexTransformMtx.Ident ();
this->mBillboardMtx.Ident ();
this->mVertexMtxInput = VTX_STAGE_MODEL;
this->mVertexMtxOutput = VTX_STAGE_MODEL;
this->mTop = 0;
this->mPrimCount = 0;
// turn off texture
#if USE_OPENGLES1
if ( !this->IsProgrammable ()) {
glDisable ( GL_TEXTURE_2D );
}
#endif
this->mTextureUnits [ 0 ] = 0;
// turn off blending
glDisable ( GL_BLEND );
this->mBlendEnabled = false;
// disable backface culling
glDisable ( GL_CULL_FACE );
this->mCullFunc = 0;
// disable depth test
glDisable ( GL_DEPTH_TEST );
this->mDepthFunc = 0;
// enable depth write
glDepthMask ( true );
this->mDepthMask = true;
// clear the vertex format
this->SetVertexFormat ();
// clear the shader
this->mShader = 0;
// reset the pen width
this->mPenWidth = 1.0f;
glLineWidth (( GLfloat )this->mPenWidth );
// reset the point size
this->mPointSize = 1.0f;
// reset the scissor rect
USRect scissorRect = this->mFrameBuffer->GetBufferRect ();
glScissor (( int )scissorRect.mXMin, ( int )scissorRect.mYMin, ( int )scissorRect.Width (), ( int )scissorRect.Height ());
this->mScissorRect = scissorRect;
// fixed function reset
#if USE_OPENGLES1
if ( !this->IsProgrammable ()) {
// load identity matrix
glMatrixMode ( GL_MODELVIEW );
glLoadIdentity ();
glMatrixMode ( GL_PROJECTION );
glLoadIdentity ();
glMatrixMode ( GL_TEXTURE );
glLoadIdentity ();
// reset the current vertex color
glColor4f ( 1.0f, 1.0f, 1.0f, 1.0f );
// reset the point size
glPointSize (( GLfloat )this->mPointSize );
}
#endif
}
