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ngspice/src/frontend/wdisp/windisp.c

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/*
* Frame buffer for the PC using MS Windows
* Wolfgang Muees 27.10.97
* Holger Vogt 07.12.01
* Holger Vogt 05.12.07
*/
#define STRICT
#include "ngspice/ngspice.h"
#ifdef HAS_WINDOWS
#include "ngspice/graph.h"
#include "ngspice/ftedev.h"
#include "ngspice/ftedbgra.h"
#include "ngspice/fteext.h"
#include "../plotting/graf.h"
#include "../plotting/graphdb.h"
#include "windisp.h"
/*
* The ngspice.h file included above defines BOOLEAN (via bool.h) and this
* clashes with the definition obtained from windows.h (via winnt.h).
* However, BOOLEAN is not used by this file so we can work round this problem
* by undefining BOOLEAN before including windows.h
* SJB - May 2005
*/
#undef BOOLEAN
#include <windows.h>
#include <windowsx.h>
#include "ngspice/suffix.h"
/* Typen */
typedef struct { /* Extra window data */
HWND wnd; /* window */
HDC hDC; /* Device context of window */
RECT Area; /* plot area */
int ColorIndex; /* Index of actual color */
int PaintFlag; /* 1 with WM_PAINT */
int FirstFlag; /* 1 before first update */
} tWindowData;
typedef tWindowData * tpWindowData; /* pointer to it */
#define pWindowData(g) ((tpWindowData)(g->devdep))
/* forwards */
LRESULT CALLBACK PlotWindowProc( HWND hwnd, /* window procedure */
UINT uMsg, WPARAM wParam, LPARAM lParam);
void WPRINT_PrintInit( HWND hwnd); /* Windows printer init */
void WaitForIdle(void); /* wait until no more events */
static void WIN_ScreentoData(GRAPH *graph, int x, int y, double *fx, double *fy);
static LRESULT HcpyPlot( HWND hwnd);
static LRESULT HcpyPlotBW( HWND hwnd);
static LRESULT PrintPlot( HWND hwnd);
static LRESULT PrintInit( HWND hwnd);
//static void RealClose(void);
/* externals */
extern HINSTANCE hInst; /* application instance */
extern int WinLineWidth; /* width of text window */
extern HWND swString; /* string input window of main window */
//extern struct plot *plot_cur;
extern int DevSwitch(char *devname);
extern int NewViewport(GRAPH *pgraph);
extern void com_hardcopy(wordlist *wl);
/* defines */
#define RAD_TO_DEG (180.0 / M_PI)
#ifndef M_LN10
#define M_LN10 2.30258509299404568402
#endif
#define DEF_FONTW "Courier"
/* local variables */
static int IsRegistered = 0; /* 1 if window class is registered */
#define NumWinColors 23 /* predefined colors */
static COLORREF ColorTable[NumWinColors]; /* color memory */
static char * WindowName = "Spice Plot"; /* window name */
static WNDCLASS TheWndClass; /* Plot-window class */
static HFONT PlotFont; /* which font */
#define ID_DRUCKEN 0xEFF0 /* System Menue: print */
#define ID_DRUCKEINR 0xEFE0 /* System Menue: printer setup */
#define ID_HARDCOPY 0xEFD0 /* System Menue: hardcopy color*/
#define ID_HARDCOPY_BW 0xEFB0 /* System Menue: hardcopy b&w*/
#define ID_MASK 0xFFF0; /* System-Menue: mask */
static char * STR_DRUCKEN = "Printer..."; /* System menue strings */
static char * STR_DRUCKEINR = "Printer setup...";
static char * STR_HARDCOPY = "Postscript file, color";
static char * STR_HARDCOPY_BW = "Postscript file, b&w";
static bool isblack = TRUE; /* background color of plot is black */
static bool isblackold = TRUE;
static int linewidth = 0; /* linewidth of grid and plot */
/******************************************************************************
WIN_Init() makes connection to graphics. We have to determine
dispdev->numlinestyles (if color screen == 1)
dispdev->numcolors
dispdev->width (preliminary window width)
dispdev->height (preliminary window height)
WIN_Init() returns 0, if no error ocurred.
WIN_Init() does not yet open a window, this happens only in WIN_NewViewport()
******************************************************************************/
int WIN_Init(void)
{
char colorstring[BSIZE_SP];
/* Initialization of display descriptor */
dispdev->width = GetSystemMetrics( SM_CXSCREEN);
dispdev->height = GetSystemMetrics( SM_CYSCREEN);
dispdev->numlinestyles = 5; /* see implications in WinPrint! */
dispdev->numcolors = NumWinColors;
/* always, user may have set color0 to white */
/* get background color information from spinit, only "white"
is recognized as a suitable option! */
if (cp_getvar("color0", CP_STRING, colorstring)) {
if (cieq(colorstring, "white")) isblack = FALSE;
else isblack = TRUE;
}
/* get linewidth information from spinit */
if (!cp_getvar("xbrushwidth", CP_NUM, &linewidth))
linewidth = 0;
if (linewidth < 0) linewidth = 0;
/* only for the first time: */
if (!IsRegistered) {
isblackold = isblack;
/* get linewidth information from spinit
if (!cp_getvar("xbrushwidth", CP_NUM, &linewidth))
linewidth = 0;
if (linewidth < 0) linewidth = 0; */
/* Initialize colors */
if (isblack) {
ColorTable[0] = RGB( 0, 0, 0); /* black = background */
ColorTable[1] = RGB(255,255,255); /* white = text and grid */
}
else {
ColorTable[0] = RGB(255,255,255); /* white = background */
ColorTable[1] = RGB( 0, 0, 0); /* black = text and grid */
}
ColorTable[2] = RGB( 0,255, 0); /* green = first line */
ColorTable[3] = RGB(255, 0, 0); /* red */
ColorTable[4] = RGB( 0, 0,255); /* blue */
ColorTable[5] = RGB(255,255, 0); /* yellow */
ColorTable[6] = RGB(255, 0,255); /* violett */
ColorTable[7] = RGB( 0,255,255); /* azur */
ColorTable[8] = RGB(255,128, 0); /* orange */
ColorTable[9] = RGB(128, 64, 0); /* brown */
ColorTable[10]= RGB(128, 0,255); /* light violett */
ColorTable[11]= RGB(255,128,128); /* pink */
/* 2. color bank (with different line style */
if (isblack)
ColorTable[12]= RGB(255,255,255); /* white */
else
ColorTable[12]= RGB( 0, 0, 0); /* black */
ColorTable[13]= RGB( 0,255, 0); /* green */
ColorTable[14]= RGB(255, 0, 0); /* red */
ColorTable[15]= RGB( 0, 0,255); /* blue */
ColorTable[16]= RGB(255,255, 0); /* yellow */
ColorTable[17]= RGB(255, 0,255); /* violett */
ColorTable[18]= RGB( 0,255,255); /* azur */
ColorTable[19]= RGB(255,128, 0); /* orange */
ColorTable[20]= RGB(128, 64, 0); /* brown */
ColorTable[21]= RGB(128, 0,255); /* light violett */
ColorTable[22]= RGB(255,128,128); /* pink */
/* Ansii fixed font */
PlotFont = GetStockFont( ANSI_FIXED_FONT);
/* register window class */
TheWndClass.lpszClassName = WindowName;
TheWndClass.hInstance = hInst;
TheWndClass.lpfnWndProc = PlotWindowProc;
TheWndClass.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
TheWndClass.lpszMenuName = NULL;
TheWndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
if (isblack)
TheWndClass.hbrBackground = GetStockObject( BLACK_BRUSH);
else
TheWndClass.hbrBackground = GetStockObject( WHITE_BRUSH);
TheWndClass.hIcon = LoadIcon(hInst, MAKEINTRESOURCE(2));
TheWndClass.cbClsExtra = 0;
TheWndClass.cbWndExtra = sizeof(GRAPH *);
if (!RegisterClass(&TheWndClass)) return 1;
}
/* not first time */
else if (isblackold != isblack) {
if (isblack) {
ColorTable[0] = RGB( 0, 0, 0); /* black = background */
ColorTable[1] = RGB(255,255,255); /* white = text and grid */
}
else {
ColorTable[0] = RGB(255,255,255); /* white = background */
ColorTable[1] = RGB( 0, 0, 0); /* black = text and grid */
}
if (isblack)
ColorTable[12]= RGB(255,255,255); /* white */
else
ColorTable[12]= RGB( 0, 0, 0); /* black */
isblackold=isblack;
}
IsRegistered = 1;
/* ready */
return (0);
}
/* get pointer to graph */
/* (attach to window) */
static GRAPH * pGraph( HWND hwnd)
{
return (GRAPH *) GetWindowLongPtr( hwnd, 0);
}
/* return line style for plotting */
static int LType( int ColorIndex)
{
if (ColorIndex >= 12)
return PS_DOT;
else
return PS_SOLID;
}
/* postscript hardcopy from a plot window */
/* called by SystemMenue / Postscript hardcopy */
static LRESULT HcpyPlot( HWND hwnd)
{
int colorval = isblack? 0 : 1;
NG_IGNORE(hwnd);
cp_vset("hcopypscolor", CP_NUM, &colorval);
com_hardcopy(NULL);
return 0;
}
static LRESULT HcpyPlotBW( HWND hwnd)
{
int bgcolor;
NG_IGNORE(hwnd);
if (cp_getvar("hcopypscolor", CP_NUM, &bgcolor))
cp_remvar("hcopypscolor");
com_hardcopy(NULL);
return 0;
}
/* print a plot window */
/* called by SystemMenue / Print */
static LRESULT PrintPlot( HWND hwnd)
{
GRAPH * graph;
GRAPH * temp;
/* get pointer to graph */
graph = pGraph( hwnd);
if (!graph) return 0;
/* switch to printer */
/* (results in WPRINT_Init()) */
if (DevSwitch("WinPrint")) return 0;
/* Cursor = wait */
SetCursor( LoadCursor( NULL, IDC_WAIT));
/* copy graph */
temp = CopyGraph(graph);
if (!temp) goto PrintEND;
/* add to the copy the new printer data */
if (NewViewport(temp)) goto PrintEND2;
/* make correction to placement of grid (copy from gr_init) */
temp->viewportxoff = temp->fontwidth * 8;
temp->viewportyoff = temp->fontheight * 4;
/* print the graph */
gr_resize(temp);
PrintEND2:
/* delete temporary graph */
DestroyGraph(temp->graphid);
PrintEND:
/* switch back to screen */
DevSwitch(NULL);
/* Cursor = normal */
SetCursor( LoadCursor( NULL, IDC_ARROW));
return 0;
}
/* initialze printer */
static LRESULT PrintInit( HWND hwnd)
{
/* hand over to printer module */
WPRINT_PrintInit(hwnd);
return 0;
}
/* window procedure */
LRESULT CALLBACK PlotWindowProc( HWND hwnd,
UINT uMsg, WPARAM wParam, LPARAM lParam)
{
static int x0,y0,xep,yep;
int xe, ye, prevmix;
static double fx0,fy0;
double fxe, fye;
double angle;
char buf[BSIZE_SP];
char buf2[128];
char *t;
HDC hdc;
HPEN OldPen;
HPEN NewPen;
switch (uMsg) {
case WM_SYSCOMMAND:
{
/* test command */
WPARAM cmd = wParam & ID_MASK;
switch(cmd) {
case ID_DRUCKEN: return PrintPlot( hwnd);
case ID_DRUCKEINR: return PrintInit( hwnd);
case ID_HARDCOPY: return HcpyPlot( hwnd);
case ID_HARDCOPY_BW: return HcpyPlotBW( hwnd);
}
}
goto WIN_DEFAULT;
case WM_LBUTTONDOWN:
{
GRAPH * gr = pGraph( hwnd);
xep = x0 = LOWORD (lParam);
yep = y0 = HIWORD (lParam);
/* generate x,y data from grid coordinates */
WIN_ScreentoData(gr, x0, y0, &fx0, &fy0);
}
goto WIN_DEFAULT;
case WM_MOUSEMOVE:
/* left mouse button: connect coordinate pair by dashed pair of x, y lines */
if (wParam & MK_LBUTTON)
{
hdc = GetDC (hwnd) ;
if (isblack)
prevmix = SetROP2(hdc, R2_XORPEN);
else
prevmix = SetROP2(hdc, R2_NOTXORPEN);
/* Create white dashed pen */
NewPen = CreatePen( LType(12), 0, ColorTable[1] );
OldPen = SelectObject(hdc, NewPen);
/* draw lines with previous coodinates -> delete old line because of XOR */
MoveToEx (hdc, x0, y0, NULL) ;
LineTo (hdc, x0, yep) ;
LineTo (hdc, xep, yep);
/* get new end point */
xe = LOWORD (lParam);
ye = HIWORD (lParam);
/* draw new lines */
MoveToEx (hdc, x0, y0, NULL) ;
LineTo (hdc, x0, ye) ;
LineTo (hdc, xe, ye);
/* restore standard color mix */
SetROP2(hdc, prevmix);
OldPen = SelectObject(hdc, OldPen);
DeleteObject( NewPen);
ReleaseDC (hwnd, hdc) ;
/* restore new to previous coordinates */
yep = ye;
xep = xe;
}
/* right mouse button: create white (black) dashed box */
else if (wParam & MK_RBUTTON){
hdc = GetDC (hwnd) ;
if (isblack)
prevmix = SetROP2(hdc, R2_XORPEN);
else
prevmix = SetROP2(hdc, R2_NOTXORPEN);
/* Create white (black) dashed pen */
NewPen = CreatePen( LType(12), 0, ColorTable[1] );
OldPen = SelectObject(hdc, NewPen);
/* draw box with previous coodinates -> delete old lines because of XOR */
MoveToEx (hdc, x0, y0, NULL) ;
LineTo (hdc, x0, yep) ;
LineTo (hdc, xep, yep);
LineTo (hdc, xep, y0) ;
LineTo (hdc, x0, y0);
/* get new end point */
xe = LOWORD (lParam);
ye = HIWORD (lParam);
/* draw new box */
MoveToEx (hdc, x0, y0, NULL) ;
LineTo (hdc, x0, ye) ;
LineTo (hdc, xe, ye);
LineTo (hdc, xe, y0) ;
LineTo (hdc, x0, y0);
/* restore standard color mix */
SetROP2(hdc, prevmix);
OldPen = SelectObject(hdc, OldPen);
DeleteObject( NewPen);
ReleaseDC (hwnd, hdc) ;
/* restore new to previous coordinates */
yep = ye;
xep = xe;
}
goto WIN_DEFAULT;
/* get final coordinates upon left mouse up */
/* calculate and print out the data */
case WM_LBUTTONUP:
{
GRAPH * gr = pGraph( hwnd);
InvalidateRect (hwnd, NULL, TRUE) ;
xe = LOWORD (lParam);
ye = HIWORD (lParam);
WIN_ScreentoData(gr, xe, ye, &fxe, &fye);
/* print it out */
if (xe == x0 && ye == y0) { /* only one location */
fprintf(stdout, "\nx0 = %g, y0 = %g\n", fx0, fy0);
if (gr->grid.gridtype == GRID_POLAR
|| gr->grid.gridtype == GRID_SMITH
|| gr->grid.gridtype == GRID_SMITHGRID)
{
angle = RAD_TO_DEG * atan2( fy0, fx0 );
fprintf(stdout, "r0 = %g, a0 = %g\n",
sqrt( fx0*fx0 + fy0*fy0 ),
(angle>0)?angle:360.0+angle);
}
} else {
/* need to print info about two points */
fprintf(stdout, "\nx0 = %g, y0 = %g x1 = %g, y1 = %g\n",
fx0, fy0, fxe, fye);
fprintf(stdout, "dx = %g, dy = %g\n", fxe-fx0, fye - fy0);
if (xe != x0 && ye != y0) {
/* add slope info if both dx and dy are zero, */
/* because otherwise either dy/dx or dx/dy is zero, */
/* which is uninteresting */
fprintf(stdout, "dy/dx = %g dx/dy = %g\n",
(fye-fy0)/(fxe-fx0), (fxe-fx0)/(fye-fy0));
}
}
SetFocus( swString);
}
goto WIN_DEFAULT;
/* get starting coordinates upon right mouse button down */
case WM_RBUTTONDOWN:
{
GRAPH * gr = pGraph( hwnd);
x0 = xep = LOWORD (lParam);
y0 = yep = HIWORD (lParam);
WIN_ScreentoData(gr, x0, y0, &fx0, &fy0);
}
goto WIN_DEFAULT;
/* get final coordinates upon right mouse button up */
/* copy xlimit, ylimit command into buf */
/* start plot loop with argument buf */
case WM_RBUTTONUP:
{
GRAPH * gr = pGraph( hwnd);
InvalidateRect (hwnd, NULL, TRUE) ;
xe = LOWORD (lParam);
ye = HIWORD (lParam);
/* do nothing if mouse curser is not moved in both x and y */
if ((xe == x0) || (ye == y0)) {
SetFocus( swString);
goto WIN_DEFAULT;
}
WIN_ScreentoData(gr, xe, ye, &fxe, &fye);
strncpy(buf2, gr->plotname, sizeof(buf2));
if ((t = strchr(buf2, ':')) != NULL)
*t = 0;
if (!eq(plot_cur->pl_typename, buf2)) {
(void) sprintf(buf,
// "setplot %s; %s xlimit %e %e ylimit %e %e; setplot $curplot\n",
"setplot %s; %s xlimit %e %e ylimit %e %e\n",
buf2, gr->commandline, fx0, fxe, fy0, fye);
} else {
(void) sprintf(buf, "%s xlimit %e %e ylimit %e %e\n",
gr->commandline, fx0, fxe, fy0, fye);
}
(void) cp_evloop(buf);
SetFocus( swString);
}
goto WIN_DEFAULT;
case WM_CLOSE: /* close window */
{
GRAPH * g = pGraph( hwnd);
if (g) {
/* if g equals currentgraph, reset currentgraph. */
if (g == currentgraph)
currentgraph = NULL;
DestroyGraph(g->graphid);
}
}
goto WIN_DEFAULT;
case WM_PAINT: /* replot window (e.g. after Resize) */
{
PAINTSTRUCT ps;
GRAPH * g;
tpWindowData wd;
HDC saveDC; /* the DC from BeginPaint is different... */
HDC newDC;
/* has to happen */
newDC = BeginPaint( hwnd, &ps);
g = pGraph( hwnd);
if (g) {
wd = pWindowData(g);
if (wd) {
if (!wd->PaintFlag && !wd->FirstFlag) {
/* avoid recursive call */
wd->PaintFlag = 1;
/* get window sizes */
GetClientRect( hwnd, &(wd->Area));
g->absolute.width = wd->Area.right;
g->absolute.height = wd->Area.bottom;
/* switch DC */
saveDC = wd->hDC;
wd->hDC = newDC;
/* plot anew */
{
GRAPH *tmp = currentgraph;
currentgraph = g;
gr_resize(g);
currentgraph = tmp;
}
/* switch DC */
wd->hDC = saveDC;
/* ready */
wd->PaintFlag = 0;
}
}
}
/* finish */
EndPaint( hwnd, &ps);
}
return 0;
default:
WIN_DEFAULT:
return DefWindowProc( hwnd, uMsg, wParam, lParam);
}
}
/******************************************************************************
WIN_NewViewport() creates a new window with a graph inside.
WIN_NewViewport() returns 0 if successful
******************************************************************************/
int WIN_NewViewport( GRAPH * graph)
{
int i;
HWND window;
HDC dc;
TEXTMETRIC tm;
tpWindowData wd;
HMENU sysmenu;
/* test the parameters */
if (!graph) return 1;
/* initialize if not yet done */
if (WIN_Init() != 0) {
externalerror("Can't initialize GDI.");
return(1);
}
/* allocate device dependency info */
wd = calloc(1, sizeof(tWindowData));
if (!wd) return 1;
graph->devdep = wd;
/* Create the window */
i = GetSystemMetrics( SM_CYSCREEN) / 3;
window = CreateWindow( WindowName, graph->plotname, WS_OVERLAPPEDWINDOW,
0, 0, WinLineWidth, i * 2 - 22, NULL, NULL, hInst, NULL);
if (!window) return 1;
/* change the background color of all windows (both new and already plotted)
by assessing the registered window class */
if (isblack)
SetClassLongPtr(window, GCLP_HBRBACKGROUND, (LONG_PTR)GetStockObject(BLACK_BRUSH));
else
SetClassLongPtr(window, GCLP_HBRBACKGROUND, (LONG_PTR)GetStockObject(WHITE_BRUSH));
wd->wnd = window;
SetWindowLongPtr(window, 0, (LONG_PTR)graph);
/* show window */
ShowWindow( window, SW_SHOWNORMAL);
/* get the mask */
GetClientRect( window, &(wd->Area));
/* get the DC */
dc = GetDC( window);
wd->hDC = dc;
/* set the Color Index */
wd->ColorIndex = 0;
/* still no flag */
wd->PaintFlag = 0;
wd->FirstFlag = 1;
/* modify system menue */
sysmenu = GetSystemMenu( window, FALSE);
AppendMenu( sysmenu, MF_SEPARATOR, 0, NULL);
AppendMenu( sysmenu, MF_STRING, ID_DRUCKEN, STR_DRUCKEN);
AppendMenu( sysmenu, MF_STRING, ID_DRUCKEINR, STR_DRUCKEINR);
AppendMenu( sysmenu, MF_STRING, ID_HARDCOPY, STR_HARDCOPY);
AppendMenu( sysmenu, MF_STRING, ID_HARDCOPY_BW, STR_HARDCOPY_BW);
/* set default parameters of DC */
SetBkColor( dc, ColorTable[0]);
SetBkMode( dc, TRANSPARENT );
/* set font */
SelectObject( dc, PlotFont);
/* query the font parameters */
if (GetTextMetrics( dc, &tm)) {
graph->fontheight = tm.tmHeight;
graph->fontwidth = tm.tmAveCharWidth;
}
/* set viewport parameters */
graph->viewport.height = wd->Area.bottom;
graph->viewport.width = wd->Area.right;
/* set absolute parameters */
graph->absolute.xpos = 0;
graph->absolute.ypos = 0;
graph->absolute.width = wd->Area.right;
graph->absolute.height = wd->Area.bottom;
/* wait until the window is really there */
WaitForIdle();
/* ready */
return(0);
}
/******************************************************************************
WIN_Close is essentially the counterpart to WIN_Init. unfortunately it might
happen, that WIN_Close is called during plotting, because one wants to switch
to the printer. Therefore WIN_Close is not allowed to do anything, cancelling
of the structures occurs at program termination.
******************************************************************************/
int WIN_Close(void)
{
return (0);
}
/*
static void RealClose(void)
{
// delete window class
if (IsRegistered) {
if (TheWndClass.hIcon) {
DestroyIcon( TheWndClass.hIcon);
TheWndClass.hIcon = NULL;
}
UnregisterClass( WindowName, hInst);
IsRegistered = FALSE;
}
}
*/
int WIN_Clear(void)
{
tpWindowData wd;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
/* this is done by the window itself */
if (!wd->PaintFlag) /* not necessary with WM_PAINT */
SendMessage( wd->wnd, WM_ERASEBKGND, (WPARAM) wd->hDC, 0);
return 0;
}
int WIN_DrawLine(int x1, int y1, int x2, int y2)
{
tpWindowData wd;
HPEN OldPen;
HPEN NewPen;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
MoveToEx(wd->hDC, x1, wd->Area.bottom - y1, NULL);
NewPen = CreatePen( LType(wd->ColorIndex), linewidth, ColorTable[wd->ColorIndex] );
OldPen = SelectObject(wd->hDC, NewPen);
LineTo(wd->hDC, x2, wd->Area.bottom - y2);
OldPen = SelectObject(wd->hDC, OldPen);
DeleteObject( NewPen);
return (0);
}
int WIN_Arc(int x0, int y0, int radius, double theta, double delta_theta)
/*
* Notes:
* Draws an arc of <radius> and center at (x0,y0) beginning at
* angle theta (in rad) and ending at theta + delta_theta
*/
{
tpWindowData wd;
HPEN OldPen;
HPEN NewPen;
int left, right, top, bottom;
int xs, ys, xe, ye;
int yb;
int direction;
double r;
double dx0;
double dy0;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
direction = AD_COUNTERCLOCKWISE;
if (delta_theta < 0) {
theta = theta + delta_theta;
delta_theta = - delta_theta;
direction = AD_CLOCKWISE;
}
SetArcDirection( wd->hDC, direction);
/* some geometric considerations in advance */
yb = wd->Area.bottom;
left = x0 - radius;
right = x0 + radius;
top = y0 + radius;
bottom = y0 - radius;
r = radius;
dx0 = x0;
dy0 = y0;
xs = (int)(dx0 + (r * cos(theta)));
ys = (int)(dy0 + (r * sin(theta)));
xe = (int)(dx0 + (r * cos(theta + delta_theta)));
ye = (int)(dy0 + (r * sin(theta + delta_theta)));
/* plot */
NewPen = CreatePen( LType(wd->ColorIndex), linewidth, ColorTable[wd->ColorIndex] );
OldPen = SelectObject(wd->hDC, NewPen);
Arc( wd->hDC, left, yb-top, right, yb-bottom, xs, yb-ys, xe, yb-ye);
OldPen = SelectObject(wd->hDC, OldPen);
DeleteObject( NewPen);
return 0;
}
/*
int WIN_Text_old( char * text, int x, int y, int degrees)
{
tpWindowData wd;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
SetTextColor( wd->hDC, ColorTable[wd->ColorIndex]);
TextOut( wd->hDC, x, wd->Area.bottom - y - currentgraph->fontheight, text, strlen(text));
return (0);
}
*/
int WIN_Text( char * text, int x, int y)
{
tpWindowData wd;
HFONT hfont;
LOGFONT lf;
int CentiDegrees = 0;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
lf.lfHeight = (int) (1.1 * currentgraph->fontheight) ;
lf.lfWidth = 0 ;
lf.lfEscapement = CentiDegrees ;
lf.lfOrientation = CentiDegrees ;
lf.lfWeight = 500 ;
lf.lfItalic = 0 ;
lf.lfUnderline = 0 ;
lf.lfStrikeOut = 0 ;
lf.lfCharSet = 0 ;
lf.lfOutPrecision = 0 ;
lf.lfClipPrecision = 0 ;
lf.lfQuality = 0 ;
lf.lfPitchAndFamily = 0 ;
/* set up fonts */
if (!cp_getvar("wfont", CP_STRING, lf.lfFaceName)) {
(void) lstrcpy(lf.lfFaceName, DEF_FONTW);
}
if (!cp_getvar("wfont_size", CP_NUM, &(lf.lfHeight))) {
lf.lfHeight = (int) (1.1 * currentgraph->fontheight) ;
}
// lstrcpy (lf.lfFaceName, "Courier"/*"Times New Roman"*/) ;
hfont = CreateFontIndirect (&lf);
SelectObject(wd->hDC, hfont);
SetTextColor( wd->hDC, ColorTable[wd->ColorIndex]);
TextOut( wd->hDC, x, wd->Area.bottom - y - currentgraph->fontheight, text, (int)strlen(text));
DeleteObject(SelectObject(wd->hDC, GetStockObject(SYSTEM_FONT)));
return (0);
}
int WIN_DefineColor(int colorid, double red, double green, double blue)
{
/* nothing */
NG_IGNORE(colorid);
NG_IGNORE(red);
NG_IGNORE(green);
NG_IGNORE(blue);
return (0);
}
int WIN_DefineLinestyle(int num, int mask)
{
/* nothing */
NG_IGNORE(num);
NG_IGNORE(mask);
return (0);
}
int WIN_SetLinestyle(int style)
{
/* nothing */
NG_IGNORE(style);
return (0);
}
int WIN_SetColor( int color)
{
tpWindowData wd;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
wd->ColorIndex = color % NumWinColors;
return (0);
}
int WIN_Update(void)
{
tpWindowData wd;
if (!currentgraph) return 0;
wd = pWindowData(currentgraph);
if (!wd) return 0;
/* After the first run of Update() */
/* FirstFlag again handles WM_PAINT messages. */
/* This prevents double painting during displaying the window. */
wd->FirstFlag = 0;
return 0;
}
/*
int WIN_DiagramReady(void)
{
return 0;
}
*/
void RemoveWindow(GRAPH* dgraph)
{
tpWindowData wd;
wd = pWindowData(dgraph);
if (wd)
SendMessage(wd->wnd, WM_CLOSE, (WPARAM) wd->hDC, 0);
}
/* Function borrowed from x11.c */
static void WIN_ScreentoData(GRAPH *graph, int x, int y, double *fx, double *fy)
{
double lmin, lmax;
if (graph->grid.gridtype == GRID_XLOG
|| graph->grid.gridtype == GRID_LOGLOG)
{
lmin = log10(graph->datawindow.xmin);
lmax = log10(graph->datawindow.xmax);
*fx = exp(((x - graph->viewportxoff)
* (lmax - lmin) / graph->viewport.width + lmin)
* M_LN10);
} else {
*fx = (x - graph->viewportxoff) * graph->aspectratiox +
graph->datawindow.xmin;
}
if (graph->grid.gridtype == GRID_YLOG
|| graph->grid.gridtype == GRID_LOGLOG)
{
lmin = log10(graph->datawindow.ymin);
lmax = log10(graph->datawindow.ymax);
*fy = exp(((graph->absolute.height - y - graph->viewportxoff)
* (lmax - lmin) / graph->viewport.height + lmin)
* M_LN10);
} else {
*fy = ((graph->absolute.height - y) - graph->viewportyoff)
* graph->aspectratioy + graph->datawindow.ymin;
}
}
#endif /* HAS_WINDOWS */
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