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CWE-ou-minkata/Sources/Tools/MaxPlasmaMtls/plDetailCurveCtrl.cpp

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
// //
// plDetailCurveCtrl Class Functions //
// Custom Win32 Control class for drawing the detail map opacity curve so //
// the artists can figure out what the hell is going on. //
// Cyan, Inc. //
// //
// To use: //
// 1. Create a new plDetailCurveCtrl, giving it a parent window and a //
// client rect. //
// 2. Set the start and end percentages, along with the start and end //
// opacities. //
// //
//// Version History //////////////////////////////////////////////////////////
// //
// 10.1.2001 mcn - Created. //
// //
///////////////////////////////////////////////////////////////////////////////
#include "HeadSpin.h"
#include "hsWindows.h"
#include "resource.h"
#pragma hdrstop
#include "plDetailCurveCtrl.h"
//// Static Stuff /////////////////////////////////////////////////////////////
int plDetailCurveCtrl::fClassRefCnt = 0;
HINSTANCE plDetailCurveCtrl::fInstance = NULL;
HBITMAP plDetailCurveCtrl::fBgndImage = NULL;
HFONT plDetailCurveCtrl::fFont = NULL;
#ifdef MCN_TWO_GRAPH_MODE
HBITMAP plDetailCurveCtrl::fBgndImage2 = NULL;
bool plDetailCurveCtrl::fXAsMipmapLevel = false;
#endif
const char gCtrlClassName[] = "DetailCurveClass";
#define kHiResStep 0.01f
void plDetailCurveCtrl::IRegisterCtrl( HINSTANCE instance )
{
if( fClassRefCnt == 0 )
{
fInstance = instance;
WNDCLASSEX clInfo;
memset( &clInfo, 0, sizeof( clInfo ) );
clInfo.cbSize = sizeof( clInfo );
clInfo.style = CS_OWNDC | CS_NOCLOSE;
clInfo.lpfnWndProc = (WNDPROC)IWndProc;
clInfo.cbClsExtra = 0;
clInfo.cbWndExtra = 0;
clInfo.hInstance = fInstance;
clInfo.hIcon = NULL;
clInfo.hCursor = LoadCursor( NULL, IDC_CROSS );
clInfo.hbrBackground = NULL;
clInfo.lpszMenuName = NULL;
clInfo.lpszClassName = gCtrlClassName;
clInfo.hIconSm = NULL;
RegisterClassEx( &clInfo );
fBgndImage = (HBITMAP)LoadImage( fInstance, MAKEINTRESOURCE( IDB_DETAILBGND ), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR );
#ifdef MCN_TWO_GRAPH_MODE
fBgndImage2 = (HBITMAP)LoadImage( fInstance, MAKEINTRESOURCE( IDB_DETAILBGND2 ), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR );
#endif
HDC hDC = GetDC( NULL );
fFont = CreateFont( -MulDiv( 8, GetDeviceCaps( hDC, LOGPIXELSY ), 72 ), 0, 0, 0, 0, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, "Arial" );
ReleaseDC( NULL, hDC );
}
fClassRefCnt++;
}
void plDetailCurveCtrl::IUnregisterCtrl( void )
{
fClassRefCnt--;
if( fClassRefCnt == 0 )
{
UnregisterClass( gCtrlClassName, fInstance );
if( fFont != NULL )
DeleteObject( fFont );
}
}
//// Constructor & Destructor /////////////////////////////////////////////////
plDetailCurveCtrl::plDetailCurveCtrl( HWND parentWnd, WPARAM id, RECT *clientRect, HINSTANCE instance )
{
// Class init
if( instance == NULL )
instance = (HINSTANCE)GetWindowLong( parentWnd, GWL_HINSTANCE );
IRegisterCtrl( instance );
// Per-object init
fDblDC = NULL;
fDblBitmap = NULL;
fStartPercent = 0;
fStartOpac = 0;
fEndPercent = 1.f;
fEndOpac = 1.f;
fNumLevels = 8;
fDraggingStart = fDraggingEnd = false;
fCanDragStart = fCanDragEnd = false;
// Note: we create originally as disabled since the default detail setting is disabled.
// The MAX Update stuff should change this if necessary after we're created
fHWnd = ::CreateWindowEx( WS_EX_CLIENTEDGE, gCtrlClassName, "Detail Curve", WS_CHILD | WS_VISIBLE | WS_BORDER | WS_DISABLED,
clientRect->left, clientRect->top, clientRect->right - clientRect->left,
clientRect->bottom - clientRect->top,
parentWnd, (HMENU)id, instance, 0 );
if( fHWnd == NULL )
return;
SetWindowLong( fHWnd, GWL_USERDATA, (LONG)this );
}
plDetailCurveCtrl::~plDetailCurveCtrl()
{
if( fDblDC != NULL )
{
SelectObject( fDblDC, (HBITMAP)NULL );
DeleteObject( fDblBitmap );
DeleteDC( fDblDC );
}
if( fWhiteBrush != NULL )
DeleteObject( fWhiteBrush );
if( fBluePen != NULL )
DeleteObject( fBluePen );
if( fLiteBluePen != NULL )
DeleteObject( fLiteBluePen );
if( fBlueBrush != NULL )
DeleteObject( fBlueBrush );
// DestroyWindow( fHWnd );
IUnregisterCtrl();
}
//// IInitDblBuffer ///////////////////////////////////////////////////////////
// Note: For some strange reason, grabbing the HDC of the window doesn't do
// any good, 'cause it's black-and-white (right, THAT makes sense). Grabbing
// the desktop DC works, however.
void plDetailCurveCtrl::IInitDblBuffer( void )
{
if( fDblDC == NULL )
{
int width, height;
RECT r;
HDC desk = GetDC( NULL );
GetClientRect( fHWnd, &r );
width = r.right - r.left;
height = r.bottom - r.top;
fDblDC = CreateCompatibleDC( desk );
fDblBitmap = CreateCompatibleBitmap( desk/*fDblDC*/, width, height );
SelectObject( fDblDC, fDblBitmap );
ReleaseDC( NULL, desk );
fWhiteBrush = CreateSolidBrush( RGB( 255, 255, 255 ) );
fBluePen = CreatePen( PS_SOLID, 1, RGB( 0, 0, 255 ) );
fLiteBluePen = CreatePen( PS_SOLID, 1, RGB( 127, 127, 255 ) );
fBlueBrush = CreateSolidBrush( RGB( 0, 0, 255 ) );
IRefreshDblBuffer();
}
}
//// IRefreshDblBuffer ////////////////////////////////////////////////////////
void plDetailCurveCtrl::IRefreshDblBuffer( void )
{
HDC hBgndDC;
RECT clientRect, r;
SIZE bgndSize;
int width, height, x, y;
HPEN oldPen;
BITMAPINFO bmpInfo;
POINT pt1, pt2;
IInitDblBuffer();
GetClientRect( fHWnd, &clientRect );
width = clientRect.right - clientRect.left;
height = clientRect.bottom - clientRect.top;
if( fDblBitmap != NULL )
{
FillRect( fDblDC, &clientRect, fWhiteBrush );
if( fBgndImage != NULL )
{
// Draw bgnd
hBgndDC = CreateCompatibleDC( fDblDC );
#ifdef MCN_TWO_GRAPH_MODE
SelectObject( hBgndDC, fXAsMipmapLevel ? fBgndImage2 : fBgndImage );
#else
SelectObject( hBgndDC, fBgndImage );
#endif
bmpInfo.bmiHeader.biSize = sizeof( bmpInfo.bmiHeader );
bmpInfo.bmiHeader.biBitCount = 0;
GetDIBits( hBgndDC, fBgndImage, 0, 0, NULL, &bmpInfo, DIB_RGB_COLORS );
bgndSize.cx = bmpInfo.bmiHeader.biWidth;
bgndSize.cy = bmpInfo.bmiHeader.biHeight;
x = ( width - bgndSize.cx ) >> 1;
y = ( height - bgndSize.cy ) >> 1;
BitBlt( fDblDC, x, y, bgndSize.cx, bgndSize.cy, hBgndDC, 0, 0, SRCCOPY );
SelectObject( hBgndDC, (HBITMAP)NULL );
DeleteDC( hBgndDC );
/// Draw graph
if( IsWindowEnabled( fHWnd ) )
{
bgndSize.cx -= 8;
oldPen = (HPEN)SelectObject( fDblDC, fLiteBluePen );
/// This line draws the light blue "actual" curve, which shows what happens
/// when you actually interpolate the curve across the mipmap levels. It's
/// more accurate in that it shows the actual values computed for each level,
/// but less accurate because it doesn't take into account mipmap sampling
/// and such. Given the latter, we leave it out (for now) to avoid confusing
/// the artists.
// IDrawCurve( fDblDC, true, x, y, &bgndSize );
SelectObject( fDblDC, fBluePen );
IDrawCurve( fDblDC, false, x, y, &bgndSize );
SelectObject( fDblDC, oldPen );
if( fStartPercent == 0.07f && fStartOpac == 0.23f && fEndPercent == 0.19f && fEndOpac == 0.79f )
{
const char str[] = "\x48\x61\x70\x70\x79\x20\x62\x64\x61\x79\x20\x74\x6f\x20\x6d\x63\x6e\x21";
SetBkMode( fDblDC, TRANSPARENT );
SetTextColor( fDblDC, RGB( 0, 0, 255 ) );
SelectObject( fDblDC, fFont );
TextOut( fDblDC, x, y + bgndSize.cy - 10, str, strlen( str ) );
}
// Draw our two markers
IXlateValuesToClientPt( fStartPercent, fStartOpac, &pt1, x, y, &bgndSize );
SetRect( &fStartDragPt, pt1.x - 4, pt1.y - 4, pt1.x + 4, pt1.y + 4 );
r = fStartDragPt;
if( !fCanDragStart )
InflateRect( &r, -2, -2 );
FillRect( fDblDC, &r, fBlueBrush );
IXlateValuesToClientPt( fEndPercent, fEndOpac, &pt2, x, y, &bgndSize );
SetRect( &fEndDragPt, pt2.x - 4, pt2.y - 4, pt2.x + 4, pt2.y + 4 );
r = fEndDragPt;
if( !fCanDragEnd )
InflateRect( &r, -2, -2 );
FillRect( fDblDC, &r, fBlueBrush );
}
}
}
}
//// IDrawCurve ///////////////////////////////////////////////////////////////
// Draw the damned curve.
void plDetailCurveCtrl::IDrawCurve( HDC hDC, bool clampToInts, int cornerX, int cornerY, SIZE *bgndSize )
{
float dist, penX, penBaseY, penXStep, penYScale;
POINT pt1;
// Calc stuff
penX = (float)cornerX;
penBaseY = (float)( cornerY + bgndSize->cy );
penXStep = (float)bgndSize->cx * kHiResStep;
penYScale = (float)bgndSize->cy;
// Draw curve
pt1.x = (int)penX;
pt1.y = (int)( penBaseY - penYScale * fStartOpac );
float artificialBias = 1.f / (float)fNumLevels; // So we never get a howFar less than 0
float artificialMaxDist = 1.f - artificialBias;
for( dist = 0.f; dist <= 1.f; dist += kHiResStep )
{
float opac = IXlateDistToValue( dist, clampToInts );
if( dist == 0.f )
MoveToEx( hDC, (int)penX, (int)( penBaseY - penYScale * opac ), NULL );
else
LineTo( hDC, (int)penX, (int)( penBaseY - penYScale * opac ) );
penX += penXStep;
}
}
//// IXlateDistToValue ////////////////////////////////////////////////////////
// I.E. from distance across graph to distance up on graph (percentage-wise)
float plDetailCurveCtrl::IXlateDistToValue( float dist, bool clampToInts )
{
const float artificialBias = 1.f / (float)fNumLevels; // So we never get a howFar less than 0
const float artificialMaxDist = 1.f - artificialBias;
float howFar, opac;
howFar = IXlateDistToX( dist, clampToInts );
if( howFar < fStartPercent )
opac = fStartOpac;
else if( howFar > fEndPercent )
opac = fEndOpac;
else
opac = ( howFar - fStartPercent ) * ( fEndOpac - fStartOpac ) / ( fEndPercent - fStartPercent ) + fStartOpac;
return opac;
}
//// IXlateDistToX ////////////////////////////////////////////////////////////
// I.E. from the distance in percentage across the graph to the actual x
// value on the graph
float plDetailCurveCtrl::IXlateDistToX( float dist, bool clampToInts )
{
const float artificialBias = 1.f / (float)fNumLevels; // So we never get a howFar less than 0
const float artificialMaxDist = 1.f - artificialBias;
float howFar;
#ifdef MCN_TWO_GRAPH_MODE
if( fXAsMipmapLevel )
{
howFar = dist * (float)fNumLevels;
if( clampToInts )
howFar = (float)( (int)howFar );
howFar /= (float)fNumLevels;
return howFar;
}
#endif
if( dist == 0.f )
howFar = 0.f;
else
{
howFar = 1.f - ( ( 1.f - dist ) * artificialMaxDist );
howFar = ( (float)fNumLevels - 1.f / howFar );
if( howFar < 0.f )
howFar = 0.f;
else if( howFar > (float)fNumLevels - 1.f )
howFar = (float)fNumLevels - 1.f;
if( clampToInts )
howFar = (float)( (int)howFar );
howFar /= (float)fNumLevels - 1.f;
}
return howFar;
}
//// IXlateXToDist ////////////////////////////////////////////////////////////
// I.E. from the actual x value of the graph to the actual distance in
// percentage across the graph.
float plDetailCurveCtrl::IXlateXToDist( float howFar )
{
const float artificialBias = 1.f / (float)fNumLevels; // So we never get a howFar less than 0
const float artificialMaxDist = 1.f - artificialBias;
float dist;
#ifdef MCN_TWO_GRAPH_MODE
if( fXAsMipmapLevel )
{
return howFar;
}
#endif
if( howFar == 0.f )
dist = 0.f;
else
{
howFar *= (float)fNumLevels - 1.f;
howFar = 1.f / ( (float)fNumLevels - howFar );
howFar = ( ( howFar - 1.f ) / artificialMaxDist ) + 1.f;
}
return howFar;
}
//// IXlateValuesToClientPt ///////////////////////////////////////////////////
// I.E. from graph x,y values to client coordinates
void plDetailCurveCtrl::IXlateValuesToClientPt( float x, float y, POINT *pt, int cornerX, int cornerY, SIZE *bgndSize )
{
pt->x = cornerX + (int)( IXlateXToDist( x ) * (float)bgndSize->cx );
pt->y = cornerY + bgndSize->cy;
pt->y -= (int)( (float)bgndSize->cy * y );
}
//// IMapMouseToValues ////////////////////////////////////////////////////////
// Map mouse x,y coordinates in clientspace to graph values. If the last param
// is true, maps to the start point, else maps to the end point
void plDetailCurveCtrl::IMapMouseToValues( int x, int y, bool mapToStart )
{
BITMAPINFO bmpInfo;
int cX, cY, width, height;
RECT clientRect;
float vX, vY;
SIZE bgndSize;
if( fBgndImage == NULL || fDblDC == NULL || !IsWindowEnabled( fHWnd ) )
return;
GetClientRect( fHWnd, &clientRect );
width = clientRect.right - clientRect.left;
height = clientRect.bottom - clientRect.top;
bmpInfo.bmiHeader.biSize = sizeof( bmpInfo.bmiHeader );
bmpInfo.bmiHeader.biBitCount = 0;
GetDIBits( fDblDC, fBgndImage, 0, 0, NULL, &bmpInfo, DIB_RGB_COLORS );
bgndSize.cx = bmpInfo.bmiHeader.biWidth;
bgndSize.cy = bmpInfo.bmiHeader.biHeight;
cX = ( width - bgndSize.cx ) >> 1;
cY = ( height - bgndSize.cy ) >> 1;
bgndSize.cx -= 8;
// Xlate to graph space and clamp
x -= cX;
y = bgndSize.cy - ( y - cY );
if( x < 0 )
x = 0;
else if( x > bgndSize.cx )
x = bgndSize.cx;
if( y < 0 )
y = 0;
else if( y > bgndSize.cy )
y = bgndSize.cy;
vX = IXlateDistToX( (float)x / (float)bgndSize.cx, false );
vY = (float)y / (float)bgndSize.cy;
if( mapToStart )
{
fStartPercent = vX;
fStartOpac = vY;
if( fEndPercent < fStartPercent )
{
fEndPercent = fStartPercent;
ISendDraggedMessage( false );
}
}
else
{
fEndPercent = vX;
fEndOpac = vY;
if( fEndPercent < fStartPercent )
{
fStartPercent = fEndPercent;
ISendDraggedMessage( true );
}
}
IRefreshDblBuffer();
InvalidateRect( fHWnd, NULL, false );
RedrawWindow( fHWnd, NULL, NULL, RDW_UPDATENOW );
ISendDraggedMessage( mapToStart );
}
//// ISendDraggedMessage //////////////////////////////////////////////////////
void plDetailCurveCtrl::ISendDraggedMessage( bool itWasTheStartPoint )
{
HWND parent = GetParent( fHWnd );
if( parent == NULL )
return;
SendMessage( parent, PL_DC_POINT_DRAGGED, itWasTheStartPoint ? PL_DC_START_POINT : PL_DC_END_POINT,
(LPARAM)this );
}
//// SetStart/EndPoint ////////////////////////////////////////////////////////
void plDetailCurveCtrl::SetStartPoint( float percentLevel, float opacity )
{
fStartPercent = percentLevel;
fStartOpac = opacity;
IRefreshDblBuffer();
InvalidateRect( fHWnd, NULL, false );
}
void plDetailCurveCtrl::SetEndPoint( float percentLevel, float opacity )
{
fEndPercent = percentLevel;
fEndOpac = opacity;
IRefreshDblBuffer();
InvalidateRect( fHWnd, NULL, false );
}
void plDetailCurveCtrl::SetNumLevels( int numLevels )
{
fNumLevels = numLevels;
IRefreshDblBuffer();
InvalidateRect( fHWnd, NULL, false );
}
//// IWndProc /////////////////////////////////////////////////////////////////
LRESULT CALLBACK plDetailCurveCtrl::IWndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
HDC hDC;
RECT clientRect;
int width, height;
PAINTSTRUCT pInfo;
POINT pt;
plDetailCurveCtrl *ctrl = (plDetailCurveCtrl *)GetWindowLong( hWnd, GWL_USERDATA );
GetClientRect( hWnd, &clientRect );
width = clientRect.right - clientRect.left;
height = clientRect.bottom - clientRect.top;
switch( msg )
{
case WM_CREATE:
return 0;
case WM_ENABLE:
if( ctrl != NULL )
ctrl->IRefreshDblBuffer();
return 0;
case WM_PAINT:
BeginPaint( hWnd, &pInfo );
hDC = (HDC)pInfo.hdc;
if( ctrl != NULL )
{
if( ctrl->fDblDC == NULL )
ctrl->IInitDblBuffer();
BitBlt( hDC, 0, 0, width, height, ctrl->fDblDC, 0, 0, SRCCOPY );
}
EndPaint( hWnd, &pInfo );
return 0;
case WM_ERASEBKGND:
return TRUE;
case WM_LBUTTONDOWN:
if( ctrl != NULL && !ctrl->fDraggingStart && !ctrl->fDraggingEnd )
{
pt.x = LOWORD( lParam );
pt.y = HIWORD( lParam );
if( PtInRect( &ctrl->fStartDragPt, pt ) )
{
if( !ctrl->fCanDragStart && !ctrl->fCanDragEnd )
SetCapture( hWnd );
ctrl->fDraggingStart = true;
}
else if( PtInRect( &ctrl->fEndDragPt, pt ) )
{
if( !ctrl->fCanDragStart && !ctrl->fCanDragEnd )
SetCapture( hWnd );
ctrl->fDraggingEnd = true;
}
}
return 0;
case WM_MOUSEMOVE:
if( ctrl != NULL )
{
pt.x = LOWORD( lParam );
pt.y = HIWORD( lParam );
if( ctrl->fDraggingStart || ctrl->fDraggingEnd )
{
ctrl->IMapMouseToValues( (short)LOWORD( lParam ), (short)HIWORD( lParam ), ctrl->fDraggingStart );
}
else if( PtInRect( &ctrl->fStartDragPt, pt ) )
{
if( !ctrl->fCanDragStart )
{
ctrl->fCanDragStart = true;
ctrl->fCanDragEnd = false;
SetCapture( hWnd );
ctrl->IRefreshDblBuffer();
InvalidateRect( hWnd, NULL, false );
}
}
else if( PtInRect( &ctrl->fEndDragPt, pt ) )
{
if( !ctrl->fCanDragEnd )
{
ctrl->fCanDragEnd = true;
ctrl->fCanDragStart = false;
SetCapture( hWnd );
ctrl->IRefreshDblBuffer();
InvalidateRect( hWnd, NULL, false );
}
}
else if( ctrl->fCanDragStart || ctrl->fCanDragEnd )
{
ctrl->fCanDragStart = false;
ctrl->fCanDragEnd = false;
ReleaseCapture();
ctrl->IRefreshDblBuffer();
InvalidateRect( hWnd, NULL, false );
}
}
return 0;
case WM_LBUTTONUP:
if( ctrl != NULL && ( ctrl->fDraggingStart || ctrl->fDraggingEnd ) )
{
if( !ctrl->fCanDragStart && !ctrl->fCanDragEnd )
ReleaseCapture();
ctrl->fDraggingStart = false;
ctrl->fDraggingEnd = false;
}
return 0;
#ifdef MCN_TWO_GRAPH_MODE
case WM_RBUTTONDOWN:
fXAsMipmapLevel = !fXAsMipmapLevel;
ctrl->IRefreshDblBuffer();
InvalidateRect( hWnd, NULL, false );
return 0;
#endif
case WM_DESTROY:
delete ctrl;
SetWindowLong( hWnd, GWL_USERDATA, 0 );
return 0;
default:
return DefWindowProc( hWnd, msg, wParam, lParam );
}
}