bool Texture::Create(unsigned int width, unsigned int height)
{
// Check if texture parameters are valid before creating it
if (!width || !height)
{
Err() << "Failed to create texture, invalid size (" << width << "x" << height << ")" << std::endl;
return false;
}
// Compute the internal texture dimensions depending on NPOT textures support
unsigned int textureWidth = GetValidSize(width);
unsigned int textureHeight = GetValidSize(height);
// Check the maximum texture size
unsigned int maxSize = GetMaximumSize();
if ((textureWidth > maxSize) || (textureHeight > maxSize))
{
Err() << "Failed to create texture, its internal size is too high "
<< "(" << textureWidth << "x" << textureHeight << ", "
<< "maximum is " << maxSize << "x" << maxSize << ")"
<< std::endl;
return false;
}
// All the validity checks passed, we can store the new texture settings
myWidth = width;
myHeight = height;
myTextureWidth = textureWidth;
myTextureHeight = textureHeight;
myPixelsFlipped = false;
EnsureGlContext();
// Create the OpenGL texture if it doesn't exist yet
if (!myTexture)
{
GLuint texture;
GLCheck(glGenTextures(1, &texture));
myTexture = static_cast<unsigned int>(texture);
}
// Make sure that the current texture binding will be preserved
priv::TextureSaver save;
// Initialize the texture
GLCheck(glBindTexture(GL_TEXTURE_2D, myTexture));
GLCheck(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, myTextureWidth, myTextureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL));
GLCheck(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, myIsRepeated ? GL_REPEAT : GL_CLAMP_TO_EDGE));
GLCheck(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, myIsRepeated ? GL_REPEAT : GL_CLAMP_TO_EDGE));
GLCheck(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, myIsSmooth ? GL_LINEAR : GL_NEAREST));
GLCheck(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, myIsSmooth ? GL_LINEAR : GL_NEAREST));
myCacheId = GetUniqueId();
return true;
}
void CDiagramEntity::SetRect( double left, double top, double right, double bottom )
/* ============================================================
Function : CDiagramEntity::SetRect
Description : Sets the object rect.
Return : void
Parameters : double left - Left edge
double top - Top edge
double right - Right edge
double bottom - Bottom edge
Usage : Call to place the object.
============================================================*/
{
SetLeft( left );
SetTop( top );
SetRight( right );
SetBottom( bottom );
if( GetMinimumSize().cx != -1 )
if( GetRect().Width() < GetMinimumSize().cx )
SetRight( GetLeft() + GetMinimumSize().cx );
if( GetMinimumSize().cy != -1 )
if( GetRect().Height() < GetMinimumSize().cy )
SetBottom( GetTop() + GetMinimumSize().cy );
if( GetMaximumSize().cx != -1 )
if( GetRect().Width() > GetMaximumSize().cx )
SetRight( GetLeft() + GetMaximumSize().cx );
if( GetMaximumSize().cy != -1 )
if( GetRect().Height() > GetMaximumSize().cy )
SetBottom( GetTop() + GetMaximumSize().cy );
if( GetPropertySheet() )
GetPropertySheet()->SetValues();
}
