deargui-vpl/ref/virtools/Samples/Behaviors/Interface/Sources/SetFontProperties.cpp

/////////////////////////////////////////////////////
//		            Set Font Properties
/////////////////////////////////////////////////////
#include "CKAll.h"
#include "CKFontManager.h"

CKObjectDeclaration	*FillBehaviorSetFontPropertiesDecl();
CKERROR CreateSetFontPropertiesProto(CKBehaviorPrototype **);
int SetFontProperties(const CKBehaviorContext& behcontext);
CKERROR SetFontPropertiesCallback(const CKBehaviorContext& behcontext);

CKObjectDeclaration	*FillBehaviorSetFontPropertiesDecl()
{
	CKObjectDeclaration *od = CreateCKObjectDeclaration("Set Font Properties");	
	od->SetDescription("Sets the visual appearance of a font.");
	/* rem:
	<SPAN CLASS=in>In: </SPAN>triggers the process.<BR>
	<SPAN CLASS=out>Out: </SPAN>is activated when the process is completed.<BR>
	<BR>
	<SPAN CLASS=pin>Font: </SPAN>font created with the building blocks "Create Font" or "Create System Font".<BR>
	<SPAN CLASS=pin>Space: </SPAN>space between characters (can be negative).<BR>
	<SPAN CLASS=pin>Scale: </SPAN>multiplicative scale of the characters.<BR>
	<SPAN CLASS=pin>Italic Offset: </SPAN>italic offset (positive is for right italic, negative is for left).<BR>
	<SPAN CLASS=pin>Color: </SPAN>color of the font (top color of the font if gradient is enabled).<BR>
	<SPAN CLASS=pin>End Color: </SPAN>bottom color of the font if gradient is enabled.<BR>
	<SPAN CLASS=pin>Shadow Color: </SPAN>color of the shadow, if the shadow is enabled.<BR>
	<SPAN CLASS=pin>Shadow Angle: </SPAN>angle of the projection of the shadow.<BR>
	<SPAN CLASS=pin>Shadow Distance: </SPAN>distance of the shadow from the main font.<BR>
	<SPAN CLASS=pin>Shadow Size: </SPAN>scale of the shadow.<BR>
	<SPAN CLASS=pin>Lit Material: </SPAN>material to use for the font if the lighting is enabled for the font.<BR>
	<BR>
	<SPAN CLASS=setting>Font Properties: </SPAN>properties of the font:<BR>
	<UL>
	<LI>Gradient: Enables a gradient rendering for the font.</LI>
	<LI>Shadow: Enables the shadowing of the font.</LI>
	<LI>Lighting: Enables the lighting of the font.</LI>
	<LI>Disable Filter: Enables the filtering of the texture.</LI>
	</UL>
	<BR>
	*/
	
	od->SetType(CKDLL_BEHAVIORPROTOTYPE);
	od->SetVersion(0x00010000);
	od->SetCreationFunction(CreateSetFontPropertiesProto);
	od->SetCategory("Interface/Fonts");
	od->SetGuid(CKGUID(0xDACFBD61,0x7A6E65E7));
	od->SetAuthorGuid(VIRTOOLS_GUID);
	od->SetAuthorName("Virtools");
	od->SetCompatibleClassId(CKCID_BEOBJECT);

	return od;
}

CKERROR CreateSetFontPropertiesProto(CKBehaviorPrototype **pproto)
{
	CKBehaviorPrototype *proto = CreateCKBehaviorPrototype("Set Font Properties");
	if(!proto) 	return CKERR_OUTOFMEMORY;

//---	Inputs declaration
	proto->DeclareInput("In");
							
//---	Outputs declaration
	proto->DeclareOutput("Out");
							
//----- Input Parameters Declaration
	proto->DeclareInParameter("Font",CKPGUID_FONT);
	proto->DeclareInParameter("Space",CKPGUID_2DVECTOR,"0,0");
	proto->DeclareInParameter("Scale",CKPGUID_2DVECTOR,"1,1");
	proto->DeclareInParameter("Italic Offset",CKPGUID_FLOAT,"0");
	proto->DeclareInParameter("Color",CKPGUID_COLOR,"255,255,255,255");
	proto->DeclareInParameter("End Color",CKPGUID_COLOR,"0,0,0,255");
	proto->DeclareInParameter("Shadow Color",CKPGUID_COLOR,"0,0,0,128");
	proto->DeclareInParameter("Shadow Angle",CKPGUID_ANGLE,"0:120");
	proto->DeclareInParameter("Shadow Distance",CKPGUID_FLOAT,"4");
	proto->DeclareInParameter("Shadow Size",CKPGUID_2DVECTOR,"1,1");
	proto->DeclareInParameter("Lit Material",CKPGUID_MATERIAL);

	proto->DeclareSetting("Font Properties",CKPGUID_FONTPROPERTIES);

	proto->SetFlags(CK_BEHAVIORPROTOTYPE_NORMAL);
	proto->SetFunction(SetFontProperties);
	proto->SetBehaviorCallbackFct( SetFontPropertiesCallback  );

	*pproto = proto;
	return CK_OK;
}

int SetFontProperties(const CKBehaviorContext& behcontext)
{
	CKBehavior* beh = behcontext.Behavior;
	CKContext* ctx	= behcontext.Context;

	beh->ActivateInput(0,FALSE);
	beh->ActivateOutput(0);

	CKFontManager* fm = (CKFontManager*)ctx->GetManagerByGuid(FONT_MANAGER_GUID);

	int fontindex = 0;
	beh->GetInputParameterValue(0,&fontindex);

	CKTextureFont* font = fm->GetFont(fontindex);
	if(!font) return CKBR_OK;

	// We get the leading
	beh->GetInputParameterValue(1,&font->m_Leading);

	// We get the scale
	beh->GetInputParameterValue(2,&font->m_Scale);

	// We get the italic offset
	beh->GetInputParameterValue(3,&font->m_ItalicOffset);

	///
	// colors
	VxColor col;

	// We get the start color
	if(!beh->GetInputParameterValue(4,&col)) {
		font->m_StartColor = RGBAFTOCOLOR(&col);
	}

	// We get the end color
	if(!beh->GetInputParameterValue(5,&col)) {
		font->m_EndColor = RGBAFTOCOLOR(&col);
	}

	// We get the shadow color
	if(!beh->GetInputParameterValue(6,&col)) {
		font->m_ShadowColor = RGBAFTOCOLOR(&col);
	}

	float shadowangle= 1.0f;
	if(!beh->GetInputParameterValue(7,&shadowangle)) {
		float shadowdistance= 4.0f;
		beh->GetInputParameterValue(8,&shadowdistance);

		font->m_ShadowOffset.x = -shadowdistance*cosf(shadowangle);
		font->m_ShadowOffset.y = shadowdistance*sinf(shadowangle);
	}

	// We get the shadow scale
	beh->GetInputParameterValue(9,&font->m_ShadowScale);

	// We get the lighted material
	beh->GetInputParameterValue(10,&font->m_Material);

	// Text Properties
	beh->GetLocalParameterValue(0,&font->m_Properties);

	return CKBR_OK;
}

CKERROR SetFontPropertiesCallback(const CKBehaviorContext& behcontext)
{
	CKBehavior* beh = behcontext.Behavior;

	switch(behcontext.CallbackMessage) { 
	case CKM_BEHAVIORCREATE:
	case CKM_BEHAVIORSETTINGSEDITED:
		{
			DWORD flags = 0;
			beh->GetLocalParameterValue(0,&flags);

			// Gradient
			beh->EnableInputParameter(5,flags & FONT_GRADIENT);

			// Shadow
			beh->EnableInputParameter(6,flags & FONT_SHADOW);
			beh->EnableInputParameter(7,flags & FONT_SHADOW);
			beh->EnableInputParameter(8,flags & FONT_SHADOW);
			beh->EnableInputParameter(9,flags & FONT_SHADOW);

			// Lighted Material
			beh->EnableInputParameter(10,flags & FONT_LIGHTING);
			if (flags & FONT_LIGHTING) {
				beh->EnableInputParameter(4,!(flags & FONT_LIGHTING));
				beh->EnableInputParameter(5,!(flags & FONT_LIGHTING));
			} else {
				beh->EnableInputParameter(4,TRUE);
			}

		}
		break;
	}
	return CKBR_OK; 	
}