extern "C" int GUI_CreateItem(lua_State *L)
{
CUserInterface *pUI = CGUIManager::GetInstance()->GetCurrentUI();
if(pUI)
{
cLua *lua = CGUIManager::GetInstance()->GetLuaContext();
unsigned int id = (unsigned int) lua->GetNumberArgument(1);
const char *type = lua->GetStringArgument(2);
CGUIObject *pObject = NULL;
if(strcmp(type, kpSpriteName) == 0)
{
//create a sprite
CGUISprite *pSprite = new CGUISprite;
pSprite->SetTexture((char *) lua->GetStringArgument(3));
pObject = pSprite;
}
if(strcmp(type, kpTextFieldName) == 0)
{
//create a Text Field
CTextField *pTextField = new CTextField;
pTextField->SetTexture((char *) lua->GetStringArgument(3, NULL));
pObject = pTextField;
}
if(strcmp(type, kpButtonName) == 0)
{
//create a button
CButton *pButton = new CButton;
char *norm = (char *) lua->GetStringArgument(3, NULL);
char *hover = (char *) lua->GetStringArgument(4, NULL);
char *sel = (char *) lua->GetStringArgument(5, NULL);
char *dis = (char *) lua->GetStringArgument(6, NULL);
pButton->SetButtonTextures(norm, hover, sel, dis);
pObject = pButton;
}
if(pObject)
{
pUI->DeleteGUIObject(id);
pObject->SetID(id);
pUI->AddGUIObject(id, pObject);
}
}
return 0;
}
void GUIRenderer::UpdateDrawCallCache(DrawCalls& Calls, const CStr& SpriteName, const CRect& Size, int CellID, std::map<CStr, CGUISprite*>& Sprites)
{
// This is called only when something has changed (like the size of the
// sprite), so it doesn't need to be particularly efficient.
// Clean up the old data
Calls.clear();
// If this object has zero size, there's nothing to render. (This happens
// with e.g. tooltips that have zero size before they're first drawn, so
// it isn't necessarily an error.)
if (Size.left == Size.right && Size.top == Size.bottom)
return;
std::map<CStr, CGUISprite*>::iterator it(Sprites.find(SpriteName));
if (it == Sprites.end())
{
/*
* Sprite not found. Check whether this a special sprite,
* and if so create a new sprite:
* "stretched:filename.ext" - stretched image
* "stretched:grayscale:filename.ext" - stretched grayscale image.
* "cropped:0.5, 0.25" - stretch this ratio (x,y) of the top left of the image
* "color:r g b a" - solid color
* > "textureAsMask" - when using color, use the (optional) texture alpha channel as mask.
* These can be combined, but they must be separated by a ":"
* so you can have a white overlay over an stretched grayscale image with:
* "grayscale:color:255 255 255 100:stretched:filename.ext"
*/
// Check that this can be a special sprite.
if (SpriteName.ReverseFind(":") == -1 && SpriteName.Find("color(") == -1)
{
LOGERROR("Trying to use a sprite that doesn't exist (\"%s\").", SpriteName.c_str());
return;
}
CGUISprite* Sprite = new CGUISprite;
VfsPath TextureName = VfsPath("art/textures/ui") / wstring_from_utf8(SpriteName.AfterLast(":"));
if (SpriteName.Find("stretched:") != -1)
{
// TODO: Should check (nicely) that this is a valid file?
SGUIImage* Image = new SGUIImage;
Image->m_TextureName = TextureName;
// Allow grayscale images for disabled portraits
if (SpriteName.Find("grayscale:") != -1)
{
Image->m_Effects = new SGUIImageEffects;
Image->m_Effects->m_Greyscale = true;
}
CClientArea ca(CRect(0, 0, 0, 0), CRect(0, 0, 100, 100));
Image->m_Size = ca;
Image->m_TextureSize = ca;
Sprite->AddImage(Image);
Sprites[SpriteName] = Sprite;
}
else if (SpriteName.Find("cropped:") != -1)
{
// TODO: Should check (nicely) that this is a valid file?
SGUIImage* Image = new SGUIImage;
CStr info = SpriteName.AfterLast("cropped:").BeforeFirst(":");
double xRatio = info.BeforeFirst(",").ToDouble();
double yRatio = info.AfterLast(",").ToDouble();
Image->m_TextureName = TextureName;
CClientArea ca(CRect(0, 0, 0, 0), CRect(0, 0, 100, 100));
CClientArea cb(CRect(0, 0, 0, 0), CRect(0, 0, 100/xRatio, 100/yRatio));
Image->m_Size = ca;
Image->m_TextureSize = cb;
Sprite->AddImage(Image);
Sprites[SpriteName] = Sprite;
}
if (SpriteName.Find("color:") != -1)
{
CStrW value = wstring_from_utf8(SpriteName.AfterLast("color:").BeforeFirst(":"));
CColor color;
// Check color is valid
if (!GUI<CColor>::ParseString(value, color))
{
LOGERROR("GUI: Error parsing sprite 'color' (\"%s\")", utf8_from_wstring(value));
return;
}
SGUIImage* Image = new SGUIImage;
// If we are using a mask, this is an effect.
// Otherwise we can fallback to the "back color" attribute
// TODO: we are assuming there is a filename here.
if (SpriteName.Find("textureAsMask:") != -1)
{
Image->m_TextureName = TextureName;
Image->m_Effects = new SGUIImageEffects;
Image->m_Effects->m_SolidColor = color;
}
else
Image->m_BackColor = color;
CClientArea ca(CRect(0, 0, 0, 0), CRect(0, 0, 100, 100));
Image->m_Size = ca;
Image->m_TextureSize = ca;
Sprite->AddImage(Image);
Sprites[SpriteName] = Sprite;
}
it = Sprites.find(SpriteName);
// Otherwise, just complain and give up:
if (it == Sprites.end())
{
SAFE_DELETE(Sprite);
LOGERROR("Trying to use a sprite that doesn't exist (\"%s\").", SpriteName.c_str());
return;
}
}
Calls.reserve(it->second->m_Images.size());
// Iterate through all the sprite's images, loading the texture and
// calculating the texture coordinates
std::vector<SGUIImage*>::const_iterator cit;
for (cit = it->second->m_Images.begin(); cit != it->second->m_Images.end(); ++cit)
{
SDrawCall Call(*cit); // pointers are safe since we never modify sprites/images after startup
CRect ObjectSize = (*cit)->m_Size.GetClientArea(Size);
if (ObjectSize.GetWidth() == 0.0 || ObjectSize.GetHeight() == 0.0)
{
// Zero sized object. Don't report as an error, since it's common for e.g. hitpoint bars.
continue; // i.e. don't continue with this image
}
Call.m_Vertices = ObjectSize;
if ((*cit)->m_RoundCoordinates)
{
// Round the vertex coordinates to integers, to avoid ugly filtering artifacts
Call.m_Vertices.left = (int)(Call.m_Vertices.left + 0.5f);
Call.m_Vertices.right = (int)(Call.m_Vertices.right + 0.5f);
Call.m_Vertices.top = (int)(Call.m_Vertices.top + 0.5f);
Call.m_Vertices.bottom = (int)(Call.m_Vertices.bottom + 0.5f);
}
if (!(*cit)->m_TextureName.empty())
{
CTextureProperties textureProps(g_L10n.LocalizePath((*cit)->m_TextureName));
textureProps.SetWrap((*cit)->m_WrapMode);
CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
texture->Prefetch();
Call.m_HasTexture = true;
Call.m_Texture = texture;
Call.m_EnableBlending = false; // will be overridden if the texture has an alpha channel
Call.m_ObjectSize = ObjectSize;
Call.m_CellID = CellID;
}
else
{
Call.m_HasTexture = false;
// Enable blending if it's transparent (allowing a little error in the calculations)
Call.m_EnableBlending = !(fabs((*cit)->m_BackColor.a - 1.0f) < 0.0000001f);
}
Call.m_BackColor = (*cit)->m_BackColor;
Call.m_BorderColor = (*cit)->m_Border ? (*cit)->m_BorderColor : CColor();
Call.m_DeltaZ = (*cit)->m_DeltaZ;
if (!Call.m_HasTexture)
{
Call.m_Shader = g_Renderer.GetShaderManager().LoadEffect(str_gui_solid);
}
else if ((*cit)->m_Effects)
{
if ((*cit)->m_Effects->m_AddColor != CColor())
{
Call.m_Shader = g_Renderer.GetShaderManager().LoadEffect(str_gui_add);
Call.m_ShaderColorParameter = (*cit)->m_Effects->m_AddColor;
// Always enable blending if something's being subtracted from
// the alpha channel
if ((*cit)->m_Effects->m_AddColor.a < 0.f)
Call.m_EnableBlending = true;
}
else if ((*cit)->m_Effects->m_Greyscale)
{
Call.m_Shader = g_Renderer.GetShaderManager().LoadEffect(str_gui_grayscale);
}
else if ((*cit)->m_Effects->m_SolidColor != CColor())
{
Call.m_Shader = g_Renderer.GetShaderManager().LoadEffect(str_gui_solid_mask);
Call.m_ShaderColorParameter = (*cit)->m_Effects->m_SolidColor;
Call.m_EnableBlending = !(fabs((*cit)->m_Effects->m_SolidColor.a - 1.0f) < 0.0000001f);
}
else /* Slight confusion - why no effects? */
{
Call.m_Shader = g_Renderer.GetShaderManager().LoadEffect(str_gui_basic);
}
}
else
{
Call.m_Shader = g_Renderer.GetShaderManager().LoadEffect(str_gui_basic);
}
Calls.push_back(Call);
}
}
void CGUI::Xeromyces_ReadImage(XMBElement Element, CXeromyces* pFile, CGUISprite &parent)
{
// Image object we're adding
SGUIImage* Image = new SGUIImage;
// Set defaults to "0 0 100% 100%"
Image->m_TextureSize = CClientArea(CRect(0, 0, 0, 0), CRect(0, 0, 100, 100));
Image->m_Size = CClientArea(CRect(0, 0, 0, 0), CRect(0, 0, 100, 100));
// TODO Gee: Setup defaults here (or maybe they are in the SGUIImage ctor)
//
// Read Attributes
//
// Now we can iterate all attributes and store
XMBAttributeList attributes = Element.GetAttributes();
for (int i=0; i<attributes.Count; ++i)
{
XMBAttribute attr = attributes.Item(i);
CStr attr_name (pFile->GetAttributeString(attr.Name));
CStrW attr_value (attr.Value.FromUTF8());
if (attr_name == "texture")
{
Image->m_TextureName = VfsPath("art/textures/ui") / attr_value;
}
else
if (attr_name == "size")
{
CClientArea ca;
if (!GUI<CClientArea>::ParseString(attr_value, ca))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_Size = ca;
}
else
if (attr_name == "texture_size")
{
CClientArea ca;
if (!GUI<CClientArea>::ParseString(attr_value, ca))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_TextureSize = ca;
}
else
if (attr_name == "real_texture_placement")
{
CRect rect;
if (!GUI<CRect>::ParseString(attr_value, rect))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_TexturePlacementInFile = rect;
}
else
if (attr_name == "cell_size")
{
CSize size;
if (!GUI<CSize>::ParseString(attr_value, size))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_CellSize = size;
}
else
if (attr_name == "fixed_h_aspect_ratio")
{
float val;
if (!GUI<float>::ParseString(attr_value, val))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_FixedHAspectRatio = val;
}
else
if (attr_name == "round_coordinates")
{
bool b;
if (!GUI<bool>::ParseString(attr_value, b))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_RoundCoordinates = b;
}
else
if (attr_name == "wrap_mode")
{
if (attr_value == L"repeat")
Image->m_WrapMode = GL_REPEAT;
else if (attr_value == L"mirrored_repeat")
Image->m_WrapMode = GL_MIRRORED_REPEAT;
else if (attr_value == L"clamp_to_edge")
Image->m_WrapMode = GL_CLAMP_TO_EDGE;
else
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
}
else
if (attr_name == "z_level")
{
float z_level;
if (!GUI<float>::ParseString(attr_value, z_level))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_DeltaZ = z_level/100.f;
}
else
if (attr_name == "backcolor")
{
CColor color;
if (!GUI<CColor>::ParseString(attr_value, color))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_BackColor = color;
}
else
if (attr_name == "bordercolor")
{
CColor color;
if (!GUI<CColor>::ParseString(attr_value, color))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_BorderColor = color;
}
else
if (attr_name == "border")
{
bool b;
if (!GUI<bool>::ParseString(attr_value, b))
LOGERROR(L"GUI: Error parsing '%hs' (\"%ls\")", attr_name.c_str(), attr_value.c_str());
else Image->m_Border = b;
}
else
{
debug_warn(L"Invalid data - DTD shouldn't allow this");
}
}
// Look for effects
XMBElementList children = Element.GetChildNodes();
for (int i=0; i<children.Count; ++i)
{
XMBElement child = children.Item(i);
CStr ElementName (pFile->GetElementString(child.GetNodeName()));
if (ElementName == "effect")
{
if (Image->m_Effects)
{
LOGERROR(L"GUI <image> must not have more than one <effect>");
}
else
{
Image->m_Effects = new SGUIImageEffects;
Xeromyces_ReadEffects(child, pFile, *Image->m_Effects);
}
}
else
{
debug_warn(L"Invalid data - DTD shouldn't allow this");
}
}
//
// Input
//
parent.AddImage(Image);
}
