C4Pattern Class Reference

#include <C4Draw.h>

Public Member Functions
C4Pattern &	operator= (const C4Pattern &)
const C4Surface *	getSurface () const
DWORD	PatternClr (unsigned int iX, unsigned int iY) const
bool	Set (class C4Surface *sfcSource, int iZoom=0)
void	SetZoom (int iZoom)
void	Clear ()
	C4Pattern ()
	~C4Pattern ()

Detailed Description

Definition at line 38 of file C4Draw.h.

Constructor & Destructor Documentation

C4Pattern()

C4Pattern::C4Pattern

(

)

Definition at line 138 of file C4Draw.cpp.

{
    // disable
    sfcPattern32=nullptr;
    CachedPattern = nullptr;
    Zoom=0;
}

~C4Pattern()

C4Pattern::~C4Pattern ( )

inline

Definition at line 55 of file C4Draw.h.

{ Clear(); }          // dtor

References Clear().

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Member Function Documentation

Clear()

void C4Pattern::Clear

(

)

Definition at line 146 of file C4Draw.cpp.

{
    // pattern assigned
    if (sfcPattern32)
    {
        // unlock it
        sfcPattern32->Unlock();
        // clear field
        sfcPattern32=nullptr;
    }
    delete[] CachedPattern; CachedPattern = nullptr;
}

References C4Surface::Unlock().

Referenced by C4TexMapEntry::Clear(), Set(), and ~C4Pattern().

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getSurface()

const C4Surface* C4Pattern::getSurface ( ) const

inline

Definition at line 49 of file C4Draw.h.

{ return sfcPattern32; }

operator=()

C4Pattern & C4Pattern::operator=

(

const C4Pattern &

nPattern

)

Definition at line 94 of file C4Draw.cpp.

{
    sfcPattern32 = nPattern.sfcPattern32;
    if (sfcPattern32) sfcPattern32->Lock();
    delete [] CachedPattern;
    if (nPattern.CachedPattern)
    {
        CachedPattern = new uint32_t[sfcPattern32->Wdt * sfcPattern32->Hgt];
        memcpy(CachedPattern, nPattern.CachedPattern, sfcPattern32->Wdt * sfcPattern32->Hgt * 4);
    }
    else
    {
        CachedPattern = nullptr;
    }
    Wdt = nPattern.Wdt;
    Hgt = nPattern.Hgt;
    Zoom = nPattern.Zoom;
    return *this;
}

References C4Surface::Hgt, C4Surface::Lock(), and C4Surface::Wdt.

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PatternClr()

DWORD C4Pattern::PatternClr	(	unsigned int	iX,
		unsigned int	iY
	)		const

Definition at line 159 of file C4Draw.cpp.

{
    if (!CachedPattern) return 0;
    // wrap position
    iX %= Wdt; iY %= Hgt;
    return CachedPattern[iY * Wdt + iX];
}

Referenced by C4Draw::DrawPatternedCircle(), C4Landscape::P::Mat2Pal(), and C4TextureMap::StoreMapPalette().

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Set()

bool C4Pattern::Set	(	class C4Surface *	sfcSource,
		int	iZoom = 0
	)

Definition at line 114 of file C4Draw.cpp.

{
    // Safety
    if (!sfcSource) return false;
    // Clear existing pattern
    Clear();
    // new style: simply store pattern for modulation or shifting, which will be decided upon use
    sfcPattern32=sfcSource;
    sfcPattern32->Lock();
    Wdt = sfcPattern32->Wdt;
    Hgt = sfcPattern32->Hgt;
    // set zoom
    Zoom=iZoom;
    // set flags
    CachedPattern = new uint32_t[Wdt * Hgt];
    if (!CachedPattern) return false;
    for (int y = 0; y < Hgt; ++y)
        for (int x = 0; x < Wdt; ++x)
        {
            CachedPattern[y * Wdt + x] = sfcPattern32->GetPixDw(x, y, false);
        }
    return true;
}

References Clear(), C4Surface::GetPixDw(), C4Surface::Hgt, C4Surface::Lock(), and C4Surface::Wdt.

Referenced by C4TexMapEntry::Init().

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SetZoom()

void C4Pattern::SetZoom ( int  iZoom )

inline

Definition at line 52 of file C4Draw.h.

{ Zoom = iZoom; }

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The documentation for this class was generated from the following files:

• C4Draw.h
• C4Draw.cpp
• stub-handle.cpp