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Colour1.cpp
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Colour1.cpp
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//////////////////////////////////////////////////////////////////////////////////////////
//
// COLOUR1.CPP a module for a variety of colour based functions.
//
//////////////////////////////////////////////////////////////////////////////////////////
// Author:-
// Paul de Leeuw
// pdeleeuw at deleeuw dot com dot au ( replace "at" "dot" by the normal characters.)
// 10/07/2007
// This Class includes code to create a true palette and to modify it
//////////////////////////////////////////////////////////////////////////////////////////
#include <windows.h>
#include <windowsx.h>
#include <stdio.h>
#include "manp.h"
#include "dib.h"
#include "preview.h"
#include "resource.h"
#include "colour.h"
#include "Plot.h"
//////////////////////////////////////////////////////////////////////////////////////////////////////
extern HWND GlobalHwnd; // This is the main windows handle
extern CDib Dib; // Device Independent Bitmaps
//////////////////////////////////////////////////////////////////////////////////////////////////////
#define PREVIEW_HEIGHT 177
#define PREVIEW_WIDTH 220
#define HOR_OFFSET 116
#define VERT_OFFSET 9
//extern short InsideRed; // values for r, g, b channels for inside colour
//extern short InsideGreen;
//extern short InsideBlue;
extern DWORD BackgroundColour; // set background colour for IFS and L-System fractals
extern long threshold; // maximum iterations ... called maxiter in FRACTINT
extern int StartColourCycling; // we can start the colour cycling from any point..good for cycling animations
extern int height, width, bits_per_pixel;
extern PAINTSTRUCT ps;
extern RECT r;
extern BOOL bTrack; // TRUE if user is selecting a region
extern int logval; // log colour map required
extern BOOL UseFractintPalette; // standard EGA palette
extern BYTE default_palette[]; // default VGA colour palette
extern double *wpixels; // an array of doubles holding slope modified iteration counts
extern WORD type; // M=mand, J=Julia 1,2,4->
extern int time_to_reinit; // time to reinitialize?
extern int InsideMethod; // inside filters
DLGPROC FAR PASCAL DisplayRGBDlg(HWND hDlg, UINT message, UINT wParam, LONG lParam);
extern void AnalysePalette(char *);
static CPreview PreviewColour;
extern CTrueCol TrueCol; // palette info
extern CPlot Plot; // image plotting routines
//////////////////////////////////////////////////////////////////////
// Initialise True Colour Palette
//////////////////////////////////////////////////////////////////////
void InitTrueColourPalette(BYTE RandFlag)
{
TrueCol.InitTrueColPal(RandFlag, threshold, StartColourCycling, logval, bits_per_pixel, UseFractintPalette, default_palette);
}
/**************************************************************************
Display palette
**************************************************************************/
void DisplayPalette(HWND hwnd, BOOL DisplayFlag)
{
WORD i, j;
DWORD size;
double MaxPal;
long LocalThreshold;
int tempflags = Plot.flags;
if (InsideMethod >= TIERAZONFILTERS)
return; // many Tierazon filters and colours don't use the palette, so why display it?
Plot.flags -= USEWPIXELS; // we don't want to write to wpixels
LocalThreshold = (threshold >= MAXTHRESHOLD) ? MAXTHRESHOLD - 1 : threshold;
MaxPal = (double)LocalThreshold / (double) height;
for (i = 0; i < height; ++i)
{
if (DisplayFlag) // display the palette
size = (DWORD)(MaxPal * (double) i);
else if (type == PERTURBATION || type == SLOPEFORWARDDIFF || type == SLOPEDERIVATIVE)
return;
for (j = width - 15; j < width; ++j)
{
if (!DisplayFlag) // retrieve value from wpixels so we can toggle palette display
size = (DWORD)(*(wpixels + i * width + j));
Plot.PlotPoint(j, i, size);
}
}
if (!bTrack) // don't splatter scan
{
InvalidateRect(hwnd, &r, FALSE);
}
Plot.flags = tempflags; // restore flags
}
/*---------------------------------------------------------------------
Display RGB Values
-------------------------------------------------------------------*/
void RGBAddress(int x, int y, RGBTRIPLE *colour)
{
RGBTRIPLE * Source = (RGBTRIPLE *)(Dib.DibPixels + (DWORD) (Dib.DibHeight - y) * Dib.WidthBytes + x * Dib.BitsPerPixel / 8);
*colour = *Source;
}
/*---------------------------------------------------------------------
Edit RGB Values
-------------------------------------------------------------------*/
int EditRGB(HINSTANCE hInst, POINTS ptCurrent)
{
RGBTRIPLE colour;
RGBAddress(ptCurrent.x, ptCurrent.y, &colour);
BackgroundColour = (DWORD)(colour.rgbtBlue) + (DWORD)(colour.rgbtGreen * 256) + (DWORD)(colour.rgbtRed * 65536);
DialogBox (hInst, "DisplayRGBDlg", GlobalHwnd, (DLGPROC)DisplayRGBDlg);
return 0;
}
/*---------------------------------------------------------------------
Display RGB Values
-------------------------------------------------------------------*/
int DisplayRGB(POINTS ptCurrent)
{
RGBTRIPLE colour;
char s[80];
RGBAddress(ptCurrent.x, ptCurrent.y, &colour);
wsprintf (s, "Colour <%02X,%02X,%02X> at %d, %d", colour.rgbtRed, colour.rgbtGreen, colour.rgbtBlue, ptCurrent.x, ptCurrent.y);
SetWindowText (GlobalHwnd, s);
return 0;
}
/**************************************************************************
Save Colour Data to File
**************************************************************************/
#define DARKGREY 40
void SaveTriplets(FILE *fop)
{
int i;
long LocalThreshold = (threshold >= MAXTHRESHOLD) ? MAXTHRESHOLD - 1 : threshold;
for (i = 0; i < ((LocalThreshold < 256) ? 256 : LocalThreshold); ++i)
{
fprintf(fop, "%d %d %d\n",
*(TrueCol.PalettePtr + i * 3 + 0),
*(TrueCol.PalettePtr + i * 3 + 1),
*(TrueCol.PalettePtr + i * 3 + 2));
}
}
short save_palette(HWND hwnd, char *outfile, char *szAppName)
{
FILE *fop;
//int i;
long LocalThreshold = (threshold >= MAXTHRESHOLD) ? MAXTHRESHOLD - 1 : threshold;
if (!(fop = fopen(outfile, "w")))
{
MessageBox(hwnd, "Can't open colour file", outfile, MB_ICONEXCLAMATION | MB_OK);
MessageBeep(0);
return 0;
}
if (LocalThreshold < 256) // make sure to add entries to the end of the palette map
memset(TrueCol.PalettePtr + LocalThreshold * 3, DARKGREY, (256 - LocalThreshold) * 3); // dark grey, not black
SaveTriplets(fop);
fclose(fop);
return 0;
}
/**************************************************************************
Get Input Data from File
**************************************************************************/
short FileReadColours(HWND hwnd, char *infile, char *szAppName)
{
char s[150];
FILE *fip;
if (!(fip = fopen(infile, "r")))
{
MessageBox(hwnd, "Can't open colour file", szAppName, MB_ICONEXCLAMATION | MB_OK);
MessageBeep(0);
return 0;
}
if (fgets(s, 150, fip))
{
AnalysePalette(s);
// TrueColourFlag = TRUE;
}
//while (fgets(s, 150, fip))
// PaletteToRules(s);
fclose(fip);
return 0;
}
/**************************************************************************
Point to the appropriate palette
**************************************************************************/
/*
void SetPalettePointer(BYTE *PalettePtr)
{
PalettePtr = TrueCol.TRUE_PALETTE;
}
*/
/**************************************************************************
Save Colour Data to File
**************************************************************************/
short save_colour(HWND hwnd, char *outfile, char *szAppName)
{
FILE *fop;
if (!(fop = fopen(outfile, "w")))
{
MessageBox(hwnd, "Can't open colour file", outfile, MB_ICONEXCLAMATION | MB_OK);
MessageBeep(0);
return 0;
}
fprintf(fop, "%d %d %d %d %d %d\n",
TrueCol.RedStartInt, TrueCol.GreenStartInt, TrueCol.BlueStartInt,
TrueCol.RedIncInt, TrueCol.GreenIncInt, TrueCol.BlueIncInt);
//OutputPalFile(fop);
fclose(fop);
return 0;
}
/**************************************************************************
Dialog Control for Setting Inside colour
**************************************************************************/
DLGPROC FAR PASCAL InsideDlg(HWND hDlg, UINT message, UINT wParam, LONG lParam)
{
static short color[3];
HWND hwndParent, hCtrl;
short nCtrlID, nIndex;
// BOOL bTrans ;
#ifdef WIN95 // 32 bit code
char s[480];
#endif
PreviewColour.HorOffset = HOR_OFFSET; // dimensions of preview window
PreviewColour.VertOffset = VERT_OFFSET;
PreviewColour.PreviewHeight = PREVIEW_HEIGHT;
PreviewColour.PreviewWidth = PREVIEW_WIDTH;
switch (message)
{
case WM_INITDIALOG:
color[0] = TrueCol.InsideRed;
color[1] = TrueCol.InsideGreen;
color[2] = TrueCol.InsideBlue;
for (nCtrlID = 10; nCtrlID < 13; nCtrlID++)
{
// color[nCtrlID - 10] = 0;
hCtrl = GetDlgItem(hDlg, nCtrlID);
SetScrollRange(hCtrl, SB_CTL, 0, 255, FALSE);
SetScrollPos(hCtrl, SB_CTL, 255 - color[nCtrlID - 10], FALSE);
SetDlgItemInt(hDlg, nCtrlID + 3, color[nCtrlID - 10], TRUE);
}
PreviewColour.InitPreview(hDlg);
PreviewColour.PreviewDib.ClearDib(color[0], color[1], color[2]);
PreviewColour.Preview(hDlg);
InvalidateRect(hDlg, NULL, FALSE);
// SendMessage (hDlg, WM_HSCROLL, 0, 0L);
return (DLGPROC)TRUE;
case WM_VSCROLL:
#ifdef WIN95 // 32 bit code
hCtrl = GET_WM_COMMAND_HWND(wParam, (_int64)lParam);
if ((nCtrlID = ((WORD)(GetWindowLong(hCtrl, GWL_ID)))) == 0)
{
wsprintf(s, "Error: Scrollbar fail: <%ld>", GetLastError());
MessageBox(hDlg, s, "Paul's Graphics Viewer", MB_ICONEXCLAMATION | MB_OK);
}
#else // 16 bit code
hCtrl = (HWND)(HIWORD(lParam));
nCtrlID = GetWindowWord(hCtrl, GWW_ID);
#endif
nIndex = nCtrlID - 10;
hwndParent = GetParent(hDlg);
switch ((int)LOWORD(wParam))
// switch (wParam)
{
case SB_PAGEDOWN:
color[nIndex] -= 15; // fall through
case SB_LINEDOWN:
color[nIndex] = max(0, color[nIndex] - 1);
break;
case SB_PAGEUP:
color[nIndex] += 15; // fall through
case SB_LINEUP:
color[nIndex] = min(255, color[nIndex] + 1);
break;
case SB_TOP:
color[nIndex] = 255;
break;
case SB_BOTTOM:
color[nIndex] = 0;
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
#ifdef WIN95 // 32 bit code
color[nIndex] = 255 - HIWORD(wParam);
#else // 16 bit code
color[nIndex] = LOWORD(lParam);
#endif
// color [nIndex] = LOWORD (lParam) ;
break;
default:
return FALSE;
}
SetScrollPos(hCtrl, SB_CTL, 255 - color[nIndex], TRUE);
SetDlgItemInt(hDlg, nCtrlID + 3, color[nIndex], TRUE);
PreviewColour.PreviewDib.ClearDib(color[0], color[1], color[2]);
PreviewColour.Preview(hDlg);
return (DLGPROC)TRUE;
case WM_PAINT:
BeginPaint(hDlg, &ps);
PreviewColour.PreviewDib.ClearDib(color[0], color[1], color[2]);
PreviewColour.Preview(hDlg);
EndPaint(hDlg, &ps);
return (DLGPROC)TRUE;
case WM_COMMAND:
switch ((int)LOWORD(wParam))
// switch (wParam)
{
case IDOK:
TrueCol.InsideRed = color[0];
TrueCol.InsideGreen = color[1];
TrueCol.InsideBlue = color[2];
TrueCol.SetTrueColourPixel(TrueCol.InsideBlue, TrueCol.InsideGreen, TrueCol.InsideRed, threshold);
Plot.RefreshScreen(); // reload screen values
hwndParent = GetParent(hDlg);
InvalidateRect(hwndParent, &r, FALSE); // force repaint
PreviewColour.PreviewDib.CloseDibPtrs();
EndDialog(hDlg, 0);
return (DLGPROC)TRUE;
case IDCANCEL:
PreviewColour.PreviewDib.CloseDibPtrs();
EndDialog(hDlg, 0);
return (DLGPROC)TRUE;
}
break;
}
return FALSE;
}
DLGPROC FAR PASCAL DisplayRGBDlg(HWND hDlg, UINT message, UINT wParam, LONG lParam)
{
int r, g, b;
char s[20];
switch (message)
{
case WM_INITDIALOG:
b = (WORD)(BackgroundColour & 0xff);
g = (WORD)((BackgroundColour >> 8) & 0xff);
r = (WORD)((BackgroundColour >> 16) & 0xff);
sprintf(s, "%02X%02X%02X", r, g, b);
SetDlgItemText(hDlg, IDC_RGB, s);
SetDlgItemInt(hDlg, IDC_RGBRED, r, TRUE);
SetDlgItemInt(hDlg, IDC_RGBGREEN, g, TRUE);
SetDlgItemInt(hDlg, IDC_RGBBLUE, b, TRUE);
return (DLGPROC)TRUE;
case WM_COMMAND:
switch ((int)LOWORD(wParam))
{
case IDCANCEL:
case IDOK:
EndDialog(hDlg, TRUE);
return (DLGPROC)TRUE;
}
break;
}
return FALSE;
}
/**************************************************************************
Dialog Control for Colour Palette Setting
**************************************************************************/
DLGPROC FAR PASCAL ColourDlg(HWND hDlg, UINT message, UINT wParam, LONG lParam)
{
// static HANDLE hCursor;
static UINT tempRedInc;
static UINT tempGreenInc;
static UINT tempBlueInc;
static UINT tempRedStart;
static UINT tempGreenStart;
static UINT tempBlueStart;
static UINT tempRandDiv;
BOOL bTrans;
static short color[4]; // R, G, B + Random Divisor
static HWND hwndParent, hCtrl;
static short nCtrlID, nIndex/*, temp*/;
char s[100];
switch (message)
{
case WM_INITDIALOG:
SetDlgItemInt(hDlg, IDC_START_RED, TrueCol.RedStartInt, TRUE);
SetDlgItemInt(hDlg, IDC_START_BLUE, TrueCol.BlueStartInt, TRUE);
SetDlgItemInt(hDlg, IDC_START_GREEN, TrueCol.GreenStartInt, TRUE);
SetDlgItemInt(hDlg, IDC_INC_GREEN, TrueCol.GreenIncInt, TRUE);
SetDlgItemInt(hDlg, IDC_INC_RED, TrueCol.RedIncInt, TRUE);
SetDlgItemInt(hDlg, IDC_INC_BLUE, TrueCol.BlueIncInt, TRUE);
SetDlgItemInt(hDlg, IDC_RAND_DIV, TrueCol.RandomDivisor, TRUE);
// hCtrl = GetDlgItem (hDlg, IDC_GENPAL);
// SendMessage(hCtrl, BM_SETCHECK, TrueColourFlag, 0L);
// hCtrl = GetDlgItem(hDlg, IDC_DISPLAYPAL);
// SendMessage(hCtrl, BM_SETCHECK, TrueCol.DisplayPaletteFlag, 0L);
hCtrl = GetDlgItem(hDlg, IDC_RANDPAL);
SendMessage(hCtrl, BM_SETCHECK, TrueCol.RandomColourFlag, 0L);
color[0] = TrueCol.RedStartInt;
color[1] = TrueCol.GreenStartInt;
color[2] = TrueCol.BlueStartInt;
color[3] = TrueCol.RandomDivisor;
for (nCtrlID = IDC_REDSCROLL; nCtrlID <= IDC_RANDSCROLL; nCtrlID++)
{
hCtrl = GetDlgItem(hDlg, nCtrlID);
SetScrollRange(hCtrl, SB_CTL, 0, 1024, FALSE);
SetScrollPos(hCtrl, SB_CTL, color[nCtrlID - IDC_REDSCROLL], FALSE);
}
hCtrl = GetDlgItem(hDlg, IDC_CYCLE_START);
SetDlgItemInt(hDlg, IDC_CYCLE_START, StartColourCycling, TRUE);
return (DLGPROC)TRUE;
case WM_HSCROLL:
hCtrl = GET_WM_COMMAND_HWND(wParam, (_int64)lParam);
if ((nCtrlID = ((WORD)(GetWindowLong(hCtrl, GWL_ID)))) == 0)
{
wsprintf(s, "Error: Scrollbar fail: <%ld>", GetLastError());
MessageBox(hDlg, s, "Paul's Graphics Viewer", MB_ICONEXCLAMATION | MB_OK);
}
nIndex = nCtrlID - IDC_REDSCROLL;
hwndParent = GetParent(hDlg);
switch ((int)LOWORD(wParam))
{
case SB_PAGEDOWN:
color[nIndex] += 15; // fall through
case SB_LINEDOWN:
color[nIndex] = min(1024, color[nIndex] + 1);
break;
case SB_PAGEUP:
color[nIndex] -= 15; // fall through
case SB_LINEUP:
color[nIndex] = max(0, color[nIndex] - 1);
break;
case SB_TOP:
color[nIndex] = 0;
break;
case SB_BOTTOM:
color[nIndex] = 1024;
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
color[nIndex] = HIWORD(wParam);
break;
default:
return FALSE;
}
SetScrollPos(hCtrl, SB_CTL, color[nIndex], TRUE);
switch (nIndex)
{
case 0:
SetDlgItemInt(hDlg, IDC_START_RED, color[0], TRUE);
break;
case 1:
SetDlgItemInt(hDlg, IDC_START_GREEN, color[1], TRUE);
break;
case 2:
SetDlgItemInt(hDlg, IDC_START_BLUE, color[2], TRUE);
break;
case 3:
SetDlgItemInt(hDlg, IDC_RAND_DIV, color[3], TRUE);
break;
}
return (DLGPROC)TRUE;
case WM_COMMAND:
switch ((int)LOWORD(wParam))
{
case IDC_START_RED:
tempRedStart = GetDlgItemInt(hDlg, IDC_START_RED, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDC_START_BLUE:
tempBlueStart = GetDlgItemInt(hDlg, IDC_START_BLUE, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDC_START_GREEN:
tempGreenStart = GetDlgItemInt(hDlg, IDC_START_GREEN, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDC_INC_GREEN:
tempGreenInc = GetDlgItemInt(hDlg, IDC_INC_GREEN, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDC_INC_RED:
tempRedInc = GetDlgItemInt(hDlg, IDC_INC_RED, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDC_INC_BLUE:
tempBlueInc = GetDlgItemInt(hDlg, IDC_INC_BLUE, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDC_RAND_DIV:
tempRandDiv = GetDlgItemInt(hDlg, IDC_RAND_DIV, &bTrans, TRUE);
return (DLGPROC)TRUE;
case IDM_DEFAULTCOL:
case IDC_INVERT:
if (LOWORD(wParam) == IDM_DEFAULTCOL)
{
TrueCol.RedStartInt = 60;
TrueCol.GreenStartInt = 120;
TrueCol.BlueStartInt = 30;
TrueCol.RedIncInt = 100;
TrueCol.GreenIncInt = 255;
TrueCol.BlueIncInt = 200;
}
else
{
TrueCol.RedStartInt = (~TrueCol.RedStartInt & 0x00ff);
TrueCol.GreenStartInt = (~TrueCol.GreenStartInt & 0x00ff);
TrueCol.BlueStartInt = (~TrueCol.BlueStartInt & 0x00ff);
}
SetDlgItemInt(hDlg, IDC_START_RED, TrueCol.RedStartInt, TRUE);
SetDlgItemInt(hDlg, IDC_START_BLUE, TrueCol.BlueStartInt, TRUE);
SetDlgItemInt(hDlg, IDC_START_GREEN, TrueCol.GreenStartInt, TRUE);
SetDlgItemInt(hDlg, IDC_INC_GREEN, TrueCol.GreenIncInt, TRUE);
SetDlgItemInt(hDlg, IDC_INC_RED, TrueCol.RedIncInt, TRUE);
SetDlgItemInt(hDlg, IDC_INC_BLUE, TrueCol.BlueIncInt, TRUE);
color[0] = TrueCol.RedStartInt;
color[1] = TrueCol.GreenStartInt;
color[2] = TrueCol.BlueStartInt;
color[3] = TrueCol.RandomDivisor;
for (nCtrlID = IDC_REDSCROLL; nCtrlID <= IDC_BLUSCROLL; nCtrlID++)
{
hCtrl = GetDlgItem(hDlg, nCtrlID);
SetScrollPos(hCtrl, SB_CTL, color[nCtrlID - IDC_REDSCROLL], FALSE);
}
return (DLGPROC)TRUE;
case IDOK:
TrueCol.RedIncInt = tempRedInc;
TrueCol.GreenIncInt = tempGreenInc;
TrueCol.BlueIncInt = tempBlueInc;
TrueCol.RedStartInt = tempRedStart;
TrueCol.GreenStartInt = tempGreenStart;
TrueCol.BlueStartInt = tempBlueStart;
TrueCol.RandomDivisor = tempRandDiv;
if (TrueCol.RandomDivisor < 1) // no division by 0
TrueCol.RandomDivisor = 1;
hCtrl = GetDlgItem(hDlg, IDC_RANDPAL);
TrueCol.RandomColourFlag = (BYTE)SendMessage(hCtrl, BM_GETCHECK, 0, 0L);
// hCtrl = GetDlgItem(hDlg, IDC_DISPLAYPAL);
// TrueCol.DisplayPaletteFlag = (BYTE)SendMessage(hCtrl, BM_GETCHECK, 0, 0L);
StartColourCycling = GetDlgItemInt(hDlg, IDC_CYCLE_START, &bTrans, TRUE);
// long LocalThreshold = (threshold >= MAXTHRESHOLD) ? MAXTHRESHOLD - 1 : threshold;
while (StartColourCycling < 0)
StartColourCycling += TrueCol.LocalThreshold;
// if (TrueColourFlag)
{
TrueCol.PalEditFlag = FALSE;
}
EndDialog(hDlg, TRUE);
return (DLGPROC)TRUE;
case IDCANCEL:
EndDialog(hDlg, FALSE);
return (DLGPROC)FALSE;
}
break;
}
return (DLGPROC)FALSE;
}