gnuplot-old/src/win/wgraph.c at gnuplot-4-4-alpha · gnuplot/gnuplot-old · GitHub

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#ifndef lint

static char *RCSid() { return RCSid("$Id: wgraph.c,v 1.67 2009/03/23 23:12:50 sfeam Exp $"); }

#endif

/* GNUPLOT - win/wgraph.c */

/*[

* Permission to use, copy, and distribute this software and its

* documentation for any purpose with or without fee is hereby granted,

* provided that the above copyright notice appear in all copies and

* that both that copyright notice and this permission notice appear

* in supporting documentation.

* Permission to modify the software is granted, but not the right to

* distribute the complete modified source code. Modifications are to

* be distributed as patches to the released version. Permission to

* distribute binaries produced by compiling modified sources is granted,

* provided you

* 1. distribute the corresponding source modifications from the

* released version in the form of a patch file along with the binaries,

* 2. add special version identification to distinguish your version

* in addition to the base release version number,

* 3. provide your name and address as the primary contact for the

* support of your modified version, and

* 4. retain our contact information in regard to use of the base

* software.

* Permission to distribute the released version of the source code along

* with corresponding source modifications in the form of a patch file is

* granted with same provisions 2 through 4 for binary distributions.

* This software is provided "as is" without express or implied warranty

* to the extent permitted by applicable law.

]*/

* AUTHORS

* Maurice Castro

* Russell Lang

#define STRICT

#include <windows.h>

#include <windowsx.h>

#if WINVER >= 0x030a

# include <commdlg.h>

#endif

#ifndef __MSC__

# include <mem.h>

#endif

#include <stdio.h>

#include <string.h>

#include "wgnuplib.h"

#include "wresourc.h"

#include "wcommon.h"

#include "term_api.h" /* for enum JUSTIFY */

#ifdef USE_MOUSE

# include "gpexecute.h"

# include "mouse.h"

#endif

# include "color.h"

# include "getcolor.h"

#ifdef USE_MOUSE

/* Petr Mikulik, February 2001

* Declarations similar to src/os2/gclient.c -- see section

* "PM: Now variables for mouse" there in.

/* If wgnuplot crashes during redrawing and mouse on, then this could help: */

/* static char lock_mouse = 1; */

/* Status of the ruler */

static struct Ruler {

TBOOLEAN on; /* ruler active ? */

int x, y; /* ruler position */

} ruler = {FALSE,0,0,};

/* Status of the line from ruler to cursor */

static struct RulerLineTo {

TBOOLEAN on; /* ruler line active ? */

int x, y; /* ruler line end position (previous cursor position) */

} ruler_lineto = {FALSE,0,0,};

/* Status of zoom box */

static struct Zoombox {

TBOOLEAN on; /* set to TRUE during zooming */

POINT from, to; /* corners of the zoom box */

LPCSTR text1, text2; /* texts in the corners (i.e. positions) */

} zoombox = { FALSE, {0,0}, {0,0}, NULL, NULL };

/* Pointer definitions */

HCURSOR hptrDefault, hptrCrossHair, hptrScaling, hptrRotating, hptrZooming, hptrCurrent;

/* Mouse support routines */

static void Wnd_exec_event(LPGW lpgw, LPARAM lparam, char type, int par1);

static void Wnd_refresh_zoombox(LPGW lpgw, LPARAM lParam);

static void Wnd_refresh_ruler_lineto(LPGW lpgw, LPARAM lParam);

static void GetMousePosViewport(LPGW lpgw, int *mx, int *my);

static void Draw_XOR_Text(LPGW lpgw, const char *text, size_t length, int x, int y);

static void DisplayStatusLine(LPGW lpgw);

static void UpdateStatusLine(LPGW lpgw, const char text[]);

static void DrawRuler(LPGW lpgw);

static void DrawRulerLineTo(LPGW lpgw);

static void DrawZoomBox(LPGW lpgw);

static void LoadCursors(LPGW lpgw);

static void DestroyCursors(LPGW lpgw);

#endif /* USE_MOUSE */

/* ================================== */

#define MAXSTR 255

#define WGDEFCOLOR 15

COLORREF wginitcolor[WGDEFCOLOR] = {

RGB(255,0,0), /* red */

RGB(0,255,0), /* green */

RGB(0,0,255), /* blue */

RGB(255,0,255), /* magenta */

RGB(0,0,128), /* dark blue */

RGB(128,0,0), /* dark red */

RGB(0,128,128), /* dark cyan */

RGB(0,0,0), /* black */

RGB(128,128,128), /* grey */

RGB(0,128,64), /* very dark cyan */

RGB(128,128,0), /* dark yellow */

RGB(128,0,128), /* dark magenta */

RGB(192,192,192), /* light grey */

RGB(0,255,255), /* cyan */

RGB(255,255,0), /* yellow */

};

#define WGDEFSTYLE 5

int wginitstyle[WGDEFSTYLE] = {PS_SOLID, PS_DASH, PS_DOT, PS_DASHDOT, PS_DASHDOTDOT};

/* Maximum number of GWOPBLK arrays to be remembered. */

/* HBB 20010218: moved here from wgnuplib.h: other parts of the program don't

* need to know about it */

#define GWOPMAX 4096

/* bitmaps for filled boxes (ULIG) */

/* zeros represent the foreground color and ones represent the background color */

/* FIXME HBB 20010916: *never* extern in a C source! */

/* extern int filldensity; */

/* extern int fillpattern; */

static unsigned char halftone_bitmaps[][16] ={

{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,

0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }, /* no fill */

{ 0xEE, 0xEE, 0xBB, 0xBB, 0xEE, 0xEE, 0xBB, 0xBB,

0xEE, 0xEE, 0xBB, 0xBB, 0xEE, 0xEE, 0xBB, 0xBB }, /* 25% pattern */

{ 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55,

0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55 }, /* 50% pattern */

{ 0x88, 0x88, 0x22, 0x22, 0x88, 0x88, 0x22, 0x22,

0x88, 0x88, 0x22, 0x22, 0x88, 0x88, 0x22, 0x22 }, /* 75% pattern */

{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } /* solid pattern */

};

#define halftone_num (sizeof(halftone_bitmaps) / sizeof (*halftone_bitmaps))

static HBRUSH halftone_brush[halftone_num];

static BITMAP halftone_bitdata[halftone_num];

static HBITMAP halftone_bitmap[halftone_num];

static unsigned char pattern_bitmaps[][16] = {

{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,

0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, /* no fill */

{0xFE, 0xFE, 0x7D, 0x7D, 0xBB, 0xBB, 0xD7, 0xD7,

0xEF, 0xEF, 0xD7, 0xD7, 0xBB, 0xBB, 0x7D, 0x7D}, /* cross-hatch (1) */

{0x77, 0x77, 0xBB, 0xBB, 0xDD, 0xDD, 0xBB, 0xBB,

0x77, 0x77, 0xBB, 0xBB, 0xDD, 0xDD, 0xBB, 0xBB}, /* double cross-hatch (2) */

{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* solid fill (3) */

{0xFE, 0xFE, 0xFD, 0xFD, 0xFB, 0xFB, 0xF7, 0xF7,

0xEF, 0xEF, 0xDF, 0xDF, 0xBF, 0xBF, 0x7F, 0x7F}, /* diagonals (4) */

{0x7F, 0x7F, 0xBF, 0xBF, 0xDF, 0xDF, 0xEF, 0xEF,

0xF7, 0xF7, 0xFB, 0xFB, 0xFD, 0xFD, 0xFE, 0xFE}, /* diagonals (5) */

{0xEE, 0xEE, 0xEE, 0xEE, 0xDD, 0xDD, 0xDD, 0xDD,

0xBB, 0xBB, 0xBB, 0xBB, 0x77, 0x77, 0x77, 0x77}, /* steep diagonals (6) */

{0x77, 0x77, 0x77, 0x77, 0xBB, 0xBB, 0xBB, 0xBB,

0xDD, 0xDD, 0xDD, 0xDD, 0xEE, 0xEE, 0xEE, 0xEE} /* steep diagonals (7) */

#if (0)

,{0xFC, 0xFC, 0xF3, 0xF3, 0xCF, 0xCF, 0x3F, 0x3F,

0xFC, 0xFC, 0xF3, 0xF3, 0xCF, 0xCF, 0x3F, 0x3F}, /* shallow diagonals (old 5) */

{0x3F, 0x3F, 0xCF, 0xCF, 0xF3, 0xF3, 0xFC, 0xFC,

0x3F, 0x3F, 0xCF, 0xCF, 0xF3, 0xF3, 0xFC, 0xFC} /* shallow diagonals (old 6) */

#endif

};

#define pattern_num (sizeof(pattern_bitmaps)/(sizeof(*pattern_bitmaps)))

static HBRUSH pattern_brush[pattern_num];

static BITMAP pattern_bitdata[pattern_num];

static HBITMAP pattern_bitmap[pattern_num];

static TBOOLEAN brushes_initialized = FALSE;

/* ================================== */

/* prototypes for module-local functions */

LRESULT CALLBACK WINEXPORT WndGraphProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);

BOOL CALLBACK WINEXPORT LineStyleDlgProc(HWND hdlg, UINT wmsg, WPARAM wparam, LPARAM lparam);

static void DestroyBlocks(LPGW lpgw);

static BOOL AddBlock(LPGW lpgw);

static void StorePen(LPGW lpgw, int i, COLORREF ref, int colorstyle, int monostyle);

static void MakePens(LPGW lpgw, HDC hdc);

static void DestroyPens(LPGW lpgw);

static void Wnd_GetTextSize(HDC hdc, LPCSTR str, size_t len, int *cx, int *cy);

static void MakeFonts(LPGW lpgw, LPRECT lprect, HDC hdc);

static void DestroyFonts(LPGW lpgw);

static void SetFont(LPGW lpgw, HDC hdc);

static void SelFont(LPGW lpgw);

static void dot(HDC hdc, int xdash, int ydash);

static void drawgraph(LPGW lpgw, HDC hdc, LPRECT rect);

static void CopyClip(LPGW lpgw);

static void CopyPrint(LPGW lpgw);

static void WriteGraphIni(LPGW lpgw);

static void ReadGraphIni(LPGW lpgw);

static COLORREF GetColor(HWND hwnd, COLORREF ref);

static void UpdateColorSample(HWND hdlg);

static BOOL LineStyle(LPGW lpgw);

/* ================================== */

/* Helper functions for GraphOp(): */

/* destroy memory blocks holding graph operations */

static void

DestroyBlocks(LPGW lpgw)

{

struct GWOPBLK *this, *next;

struct GWOP FAR *gwop;

unsigned int i;

this = lpgw->gwopblk_head;

while (this != NULL) {

next = this->next;

if (!this->gwop) {

this->gwop = (struct GWOP FAR *)GlobalLock(this->hblk);

}

if (this->gwop) {

/* free all text strings within this block */

gwop = this->gwop;

for (i=0; i<GWOPMAX; i++) {

if (gwop->htext)

LocalFree(gwop->htext);

gwop++;

}

GlobalUnlock(this->hblk);

GlobalFree(this->hblk);

LocalFreePtr(this);

this = next;

}

lpgw->gwopblk_head = NULL;

lpgw->gwopblk_tail = NULL;

lpgw->nGWOP = 0;

}

/* add a new memory block for graph operations */

/* returns TRUE if block allocated */

static BOOL

AddBlock(LPGW lpgw)

{

HGLOBAL hblk;

struct GWOPBLK *next, *this;

/* create new block */

next = (struct GWOPBLK *)LocalAllocPtr(LHND, sizeof(struct GWOPBLK) );

if (next == NULL)

return FALSE;

hblk = GlobalAlloc(GHND, GWOPMAX*sizeof(struct GWOP));

if (hblk == NULL)

return FALSE;

next->hblk = hblk;

next->gwop = (struct GWOP FAR *)NULL;

next->next = (struct GWOPBLK *)NULL;

next->used = 0;

/* attach it to list */

this = lpgw->gwopblk_tail;

if (this == NULL) {

lpgw->gwopblk_head = next;

} else {

this->next = next;

this->gwop = (struct GWOP FAR *)NULL;

GlobalUnlock(this->hblk);

}

lpgw->gwopblk_tail = next;

next->gwop = (struct GWOP FAR *)GlobalLock(next->hblk);

if (next->gwop == (struct GWOP FAR *)NULL)

return FALSE;

return TRUE;

}

void WDPROC

GraphOp(LPGW lpgw, WORD op, WORD x, WORD y, LPCSTR str)

{

if (str)

GraphOpSize(lpgw, op, x, y, str, _fstrlen(str)+1);

else

GraphOpSize(lpgw, op, x, y, NULL, 0);

}

void WDPROC

GraphOpSize(LPGW lpgw, WORD op, WORD x, WORD y, LPCSTR str, DWORD size)

{

struct GWOPBLK *this;

struct GWOP FAR *gwop;

char *npstr;

this = lpgw->gwopblk_tail;

if ( (this==NULL) || (this->used >= GWOPMAX) ) {

/* not enough space so get new block */

if (!AddBlock(lpgw))

return;

this = lpgw->gwopblk_tail;

}

gwop = &this->gwop[this->used];

gwop->op = op;

gwop->x = x;

gwop->y = y;

gwop->htext = 0;

if (str) {

gwop->htext = LocalAlloc(LHND, size);

npstr = LocalLock(gwop->htext);

if (gwop->htext && (npstr != (char *)NULL))

memcpy(npstr, str, size);

LocalUnlock(gwop->htext);

}

this->used++;

lpgw->nGWOP++;

return;

}

/* ================================== */

/* Prepare Graph window for being displayed by windows, read wgnuplot.ini, update

* the window's menus and show it */

void WDPROC

GraphInit(LPGW lpgw)

{

HMENU sysmenu;

WNDCLASS wndclass;

char buf[MAX_PATH];

HDC hdc;

TEXTMETRIC metric;

if (!lpgw->hPrevInstance) {

wndclass.style = CS_HREDRAW | CS_VREDRAW;

wndclass.lpfnWndProc = WndGraphProc;

wndclass.cbClsExtra = 0;

wndclass.cbWndExtra = 2 * sizeof(void FAR *);

wndclass.hInstance = lpgw->hInstance;

wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);

wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);

wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);

wndclass.lpszMenuName = NULL;

wndclass.lpszClassName = szGraphClass;

RegisterClass(&wndclass);

}

ReadGraphIni(lpgw);

lpgw->hWndGraph = CreateWindow(szGraphClass, lpgw->Title,

WS_OVERLAPPEDWINDOW,

lpgw->Origin.x, lpgw->Origin.y,

lpgw->Size.x, lpgw->Size.y,

NULL, NULL, lpgw->hInstance, lpgw);

/* determine height of status line */

hdc = GetDC(lpgw->hWndGraph);

GetTextMetrics(hdc, &metric);

lpgw->statuslineheight = metric.tmHeight * 1.2;

ReleaseDC(lpgw->hWndGraph, hdc);

lpgw->hPopMenu = CreatePopupMenu();

AppendMenu(lpgw->hPopMenu, MF_STRING | (lpgw->graphtotop ? MF_CHECKED : MF_UNCHECKED),

M_GRAPH_TO_TOP, "Bring to &Top");

AppendMenu(lpgw->hPopMenu, MF_STRING | (lpgw->color ? MF_CHECKED : MF_UNCHECKED),

M_COLOR, "C&olor");

AppendMenu(lpgw->hPopMenu, MF_STRING, M_COPY_CLIP, "&Copy to Clipboard");

#if WINVER >= 0x030a

AppendMenu(lpgw->hPopMenu, MF_STRING, M_BACKGROUND, "&Background...");

AppendMenu(lpgw->hPopMenu, MF_STRING, M_CHOOSE_FONT, "Choose &Font...");

AppendMenu(lpgw->hPopMenu, MF_STRING, M_LINESTYLE, "&Line Styles...");

#endif

AppendMenu(lpgw->hPopMenu, MF_STRING, M_PRINT, "&Print...");

if (lpgw->IniFile != (LPSTR)NULL) {

wsprintf(buf,"&Update %s",lpgw->IniFile);

AppendMenu(lpgw->hPopMenu, MF_STRING, M_WRITEINI, (LPSTR)buf);

}

/* modify the system menu to have the new items we want */

sysmenu = GetSystemMenu(lpgw->hWndGraph,0);

AppendMenu(sysmenu, MF_SEPARATOR, 0, NULL);

AppendMenu(sysmenu, MF_POPUP, (UINT)lpgw->hPopMenu, "&Options");

AppendMenu(sysmenu, MF_STRING, M_ABOUT, "&About");

if (!IsWindowVisible(lpgw->lptw->hWndParent)) {

AppendMenu(sysmenu, MF_SEPARATOR, 0, NULL);

AppendMenu(sysmenu, MF_STRING, M_COMMANDLINE, "C&ommand Line");

}

ShowWindow(lpgw->hWndGraph, SW_SHOWNORMAL);

}

/* close a graph window */

void WDPROC

GraphClose(LPGW lpgw)

{

/* Pass it through mouse handling to check for "bind Close" */

Wnd_exec_event(lpgw, (LPARAM)0, GE_reset, 0);

/* close window */

if (lpgw->hWndGraph)

DestroyWindow(lpgw->hWndGraph);

#ifndef WGP_CONSOLE

TextMessage();

#endif

lpgw->hWndGraph = NULL;

lpgw->locked = TRUE;

DestroyBlocks(lpgw);

lpgw->locked = FALSE;

}

void WDPROC

GraphStart(LPGW lpgw, double pointsize)

{

lpgw->locked = TRUE;

DestroyBlocks(lpgw);

lpgw->org_pointsize = pointsize;

if ( !lpgw->hWndGraph || !IsWindow(lpgw->hWndGraph) )

GraphInit(lpgw);

if (IsIconic(lpgw->hWndGraph))

ShowWindow(lpgw->hWndGraph, SW_SHOWNORMAL);

if (lpgw->graphtotop) {

/* HBB NEW 20040221: avoid grabbing the keyboard focus

* unless mouse mode is on */

#ifdef USE_MOUSE

if (mouse_setting.on) {

BringWindowToTop(lpgw->hWndGraph);

return;

}

#endif /* USE_MOUSE */

SetWindowPos(lpgw->hWndGraph,

HWND_TOP, 0,0,0,0,

SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);

}

void WDPROC

GraphEnd(LPGW lpgw)

{

RECT rect;

GetClientRect(lpgw->hWndGraph, &rect);

InvalidateRect(lpgw->hWndGraph, (LPRECT) &rect, 1);

lpgw->locked = FALSE;

UpdateWindow(lpgw->hWndGraph);

#ifdef USE_MOUSE

gp_exec_event(GE_plotdone, 0, 0, 0, 0, 0); /* notify main program */

#endif

}

/* shige */

void WDPROC

GraphChangeTitle(LPGW lpgw)

{

SetWindowText(lpgw->hWndGraph,lpgw->Title);

}

void WDPROC

GraphResume(LPGW lpgw)

{

lpgw->locked = TRUE;

}

void WDPROC

GraphPrint(LPGW lpgw)

{

if (lpgw->hWndGraph && IsWindow(lpgw->hWndGraph))

SendMessage(lpgw->hWndGraph,WM_COMMAND,M_PRINT,0L);

}

void WDPROC

GraphRedraw(LPGW lpgw)

{

if (lpgw->hWndGraph && IsWindow(lpgw->hWndGraph))

SendMessage(lpgw->hWndGraph,WM_COMMAND,M_REBUILDTOOLS,0L);

}

/* ================================== */

/* Helper functions for bookkeeping of pens, brushes and fonts */

/* Set up LOGPEN structures based on information coming from wgnuplot.ini, via

* ReadGraphIni() */

static void

StorePen(LPGW lpgw, int i, COLORREF ref, int colorstyle, int monostyle)

{

LOGPEN FAR *plp;

plp = &lpgw->colorpen[i];

plp->lopnColor = ref;

if (colorstyle < 0) {

plp->lopnWidth.x = -colorstyle;

plp->lopnStyle = 0;

} else {

plp->lopnWidth.x = 1;

plp->lopnStyle = colorstyle % 5;

}

plp->lopnWidth.y = 0;

plp = &lpgw->monopen[i];

plp->lopnColor = RGB(0,0,0);

if (monostyle < 0) {

plp->lopnWidth.x = -monostyle;

plp->lopnStyle = 0;

} else {

plp->lopnWidth.x = 1;

plp->lopnStyle = monostyle % 5;

}

plp->lopnWidth.y = 0;

}

/* Prepare pens and brushes (--> colors) for use by the driver. Pens are (now) created

* on-the-fly (--> DeleteObject(SelectObject(...)) idiom), but the brushes are still

* all created statically, and kept until the window is closed */

static void

MakePens(LPGW lpgw, HDC hdc)

{

int i;

if ((GetDeviceCaps(hdc,NUMCOLORS) == 2) || !lpgw->color) {

lpgw->hapen = CreatePenIndirect((LOGPEN FAR *)&lpgw->monopen[1]); /* axis */

lpgw->hbrush = CreateSolidBrush(RGB(255,255,255));

for (i=0; i<WGNUMPENS+2; i++)

lpgw->colorbrush[i] = CreateSolidBrush(RGB(0,0,0));

} else {

lpgw->hapen = CreatePenIndirect((LOGPEN FAR *)&lpgw->colorpen[1]); /* axis */

lpgw->hbrush = CreateSolidBrush(lpgw->background);

for (i=0; i<WGNUMPENS+2; i++)

lpgw->colorbrush[i] = CreateSolidBrush(lpgw->colorpen[i].lopnColor);

}

/* build pattern brushes for filled boxes (ULIG) */

if( ! brushes_initialized ) {

int i;

for(i=0; i < halftone_num; i++) {

halftone_bitdata[i].bmType = 0;

halftone_bitdata[i].bmWidth = 16;

halftone_bitdata[i].bmHeight = 8;

halftone_bitdata[i].bmWidthBytes = 2;

halftone_bitdata[i].bmPlanes = 1;

halftone_bitdata[i].bmBitsPixel = 1;

halftone_bitdata[i].bmBits = halftone_bitmaps[i];

halftone_bitmap[i] = CreateBitmapIndirect(&halftone_bitdata[i]);

halftone_brush[i] = CreatePatternBrush(halftone_bitmap[i]);

}

for(i=0; i < pattern_num; i++) {

pattern_bitdata[i].bmType = 0;

pattern_bitdata[i].bmWidth = 16;

pattern_bitdata[i].bmHeight = 8;

pattern_bitdata[i].bmWidthBytes = 2;

pattern_bitdata[i].bmPlanes = 1;

pattern_bitdata[i].bmBitsPixel = 1;

pattern_bitdata[i].bmBits = pattern_bitmaps[i];

pattern_bitmap[i] = CreateBitmapIndirect(&pattern_bitdata[i]);

pattern_brush[i] = CreatePatternBrush(pattern_bitmap[i]);

}

brushes_initialized = TRUE;

}

/* Undo effect of MakePens(). To be called just before the window is closed. */

static void

DestroyPens(LPGW lpgw)

{

int i;

DeleteObject(lpgw->hbrush);

DeleteObject(lpgw->hapen);

for (i=0; i<WGNUMPENS+2; i++)

DeleteObject(lpgw->colorbrush[i]);

/* delete brushes used for boxfilling (ULIG) */

if( brushes_initialized ) {

int i;

for( i=0; i<halftone_num; i++ ) {

DeleteObject(halftone_bitmap[i]);

DeleteObject(halftone_brush[i]);

}

for( i=0; i<pattern_num; i++ ) {

DeleteObject(pattern_bitmap[i]);

DeleteObject(pattern_brush[i]);

}

brushes_initialized = FALSE;

}

/* ================================== */

/* HBB 20010218: new function. An isolated snippet from MakeFont(), now also

* used in Wnd_put_tmptext() to size the temporary bitmap. */

static void

Wnd_GetTextSize(HDC hdc, LPCSTR str, size_t len, int *cx, int *cy)

{

#ifdef WIN32

SIZE size;

GetTextExtentPoint(hdc, str, len, &size);

*cx = size.cx;

*cy = size.cy;

#else

/* Hmm... if not for compatibility to Win 3.0 and earlier, we could

* use GetTextExtentPoint on Win16, too :-( */

DWORD extent;

extent = GetTextExtent(hdc, str, len);

*cx = LOWORD(extent);

*cy = HIWORD(extent);

#endif

}

void

GetPlotRect(LPGW lpgw, LPRECT rect)

{

GetClientRect(lpgw->hWndGraph, rect);

rect->bottom -= lpgw->statuslineheight; /* leave some room for the status line */

if (rect->bottom < rect->top) rect->bottom = rect->top;

}

static void

MakeFonts(LPGW lpgw, LPRECT lprect, HDC hdc)

{

HFONT hfontold;

TEXTMETRIC tm;

int result;

char FAR *p;

int cx, cy;

lpgw->rotate = FALSE;

_fmemset(&(lpgw->lf), 0, sizeof(LOGFONT));

_fstrncpy(lpgw->lf.lfFaceName,lpgw->fontname,LF_FACESIZE);

lpgw->lf.lfHeight = -MulDiv(lpgw->fontsize, GetDeviceCaps(hdc, LOGPIXELSY), 72);

lpgw->lf.lfCharSet = DEFAULT_CHARSET;

if ( (p = _fstrstr(lpgw->fontname," Italic")) != (LPSTR)NULL ) {

lpgw->lf.lfFaceName[ (unsigned int)(p-lpgw->fontname) ] = '\0';

lpgw->lf.lfItalic = TRUE;

}

if ( (p = _fstrstr(lpgw->fontname," Bold")) != (LPSTR)NULL ) {

lpgw->lf.lfFaceName[ (unsigned int)(p-lpgw->fontname) ] = '\0';

lpgw->lf.lfWeight = FW_BOLD;

}

if (lpgw->hfonth == 0) {

lpgw->hfonth = CreateFontIndirect((LOGFONT FAR *)&(lpgw->lf));

}

/* we do need a 90 degree font */

if (lpgw->hfontv)

DeleteObject(lpgw->hfontv);

lpgw->lf.lfEscapement = 900;

lpgw->lf.lfOrientation = 900;

lpgw->hfontv = CreateFontIndirect((LOGFONT FAR *)&(lpgw->lf));

/* save text size */

hfontold = SelectObject(hdc, lpgw->hfonth);

Wnd_GetTextSize(hdc, "0123456789", 10, &cx, &cy);

lpgw->vchar = MulDiv(cy,lpgw->ymax,lprect->bottom - lprect->top);

lpgw->hchar = MulDiv(cx/10,lpgw->xmax,lprect->right - lprect->left);

/* CMW: Base tick size on character size */

lpgw->htic = lpgw->hchar / 2;

cy = MulDiv(cx/20, GetDeviceCaps(hdc, LOGPIXELSY), GetDeviceCaps(hdc, LOGPIXELSX));

lpgw->vtic = MulDiv(cy,lpgw->ymax,lprect->bottom - lprect->top);

/* find out if we can rotate text 90deg */

SelectObject(hdc, lpgw->hfontv);

result = GetDeviceCaps(hdc, TEXTCAPS);

if ((result & TC_CR_90) || (result & TC_CR_ANY))

lpgw->rotate = TRUE;

GetTextMetrics(hdc,(TEXTMETRIC FAR *)&tm);

if (tm.tmPitchAndFamily & TMPF_VECTOR)

lpgw->rotate = TRUE; /* vector fonts can all be rotated */

#if WINVER >=0x030a

if (tm.tmPitchAndFamily & TMPF_TRUETYPE)

lpgw->rotate = TRUE; /* truetype fonts can all be rotated */

#endif

SelectObject(hdc, hfontold);

return;

}

static void

DestroyFonts(LPGW lpgw)

{

if (lpgw->hfonth) {

DeleteObject(lpgw->hfonth);

lpgw->hfonth = 0;

}

if (lpgw->hfontv) {

DeleteObject(lpgw->hfontv);

lpgw->hfontv = 0;

}

return;

}

static void

SetFont(LPGW lpgw, HDC hdc)

{

if (lpgw->rotate && lpgw->angle) {

if (lpgw->hfontv)

DeleteObject(lpgw->hfontv);

lpgw->lf.lfEscapement = lpgw->lf.lfOrientation = lpgw->angle * 10;

lpgw->hfontv = CreateFontIndirect((LOGFONT FAR *)&(lpgw->lf));

if (lpgw->hfontv)

SelectObject(hdc, lpgw->hfontv);

} else {

if (lpgw->hfonth)

SelectObject(hdc, lpgw->hfonth);

}

return;

}

static void

SelFont(LPGW lpgw)

{

#if WINVER >= 0x030a

LOGFONT lf;

CHOOSEFONT cf;

HDC hdc;

char lpszStyle[LF_FACESIZE];

char FAR *p;

/* Set all structure fields to zero. */

_fmemset(&cf, 0, sizeof(CHOOSEFONT));

_fmemset(&lf, 0, sizeof(LOGFONT));

cf.lStructSize = sizeof(CHOOSEFONT);

cf.hwndOwner = lpgw->hWndGraph;

_fstrncpy(lf.lfFaceName,lpgw->fontname,LF_FACESIZE);

if ((p = _fstrstr(lpgw->fontname," Bold")) != (LPSTR)NULL) {

_fstrncpy(lpszStyle,p+1,LF_FACESIZE);

lf.lfFaceName[ (unsigned int)(p-lpgw->fontname) ] = '\0';

} else if ((p = _fstrstr(lpgw->fontname," Italic")) != (LPSTR)NULL) {

_fstrncpy(lpszStyle,p+1,LF_FACESIZE);

lf.lfFaceName[ (unsigned int)(p-lpgw->fontname) ] = '\0';

} else {

_fstrcpy(lpszStyle,"Regular");

}

cf.lpszStyle = lpszStyle;

hdc = GetDC(lpgw->hWndGraph);

lf.lfHeight = -MulDiv(lpgw->fontsize, GetDeviceCaps(hdc, LOGPIXELSY), 72);

ReleaseDC(lpgw->hWndGraph, hdc);

cf.lpLogFont = &lf;

cf.nFontType = SCREEN_FONTTYPE;

cf.Flags = CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT | CF_USESTYLE;

if (ChooseFont(&cf)) {

_fstrcpy(lpgw->fontname,lf.lfFaceName);

lpgw->fontsize = cf.iPointSize / 10;

if (cf.nFontType & BOLD_FONTTYPE)

lstrcat(lpgw->fontname," Bold");

if (cf.nFontType & ITALIC_FONTTYPE)

lstrcat(lpgw->fontname," Italic");

/* set current font as default font */

strcpy(lpgw->deffontname,lpgw->fontname);

lpgw->deffontsize = lpgw->fontsize;

SendMessage(lpgw->hWndGraph,WM_COMMAND,M_REBUILDTOOLS,0L);

}

#endif

}

#ifdef USE_MOUSE

/* ================================== */

static void

LoadCursors(LPGW lpgw)

{

/* 3 of them are standard cursor shapes: */

hptrDefault = LoadCursor(NULL, IDC_ARROW);

hptrZooming = LoadCursor(NULL, IDC_SIZEALL);

hptrCrossHair = LoadCursor( NULL, IDC_CROSS);

/* the other 2 are kept in the resource file: */

hptrScaling = LoadCursor( lpgw->hInstance, MAKEINTRESOURCE(IDC_SCALING));

hptrRotating = LoadCursor( lpgw->hInstance, MAKEINTRESOURCE(IDC_ROTATING));

hptrCurrent = hptrCrossHair;

}

static void

DestroyCursors(LPGW lpgw)

{

/* No-op. Cursors from LoadCursor() don't need destroying */

return;

}

#endif /* USE_MOUSE */

/* ================================== */

static void

dot(HDC hdc, int xdash, int ydash)

{

MoveTo(hdc, xdash, ydash);

LineTo(hdc, xdash, ydash+1);

}

/* This one is really the heart of this module: it executes the stored set of

* commands, whenever it changed or a redraw is necessary */

static void

drawgraph(LPGW lpgw, HDC hdc, LPRECT rect)

{

int xdash, ydash; /* the transformed coordinates */

int rr, rl, rt, rb;

struct GWOP FAR *curptr;

struct GWOPBLK *blkptr;

int htic, vtic;

int hshift, vshift;

unsigned int lastop=-1; /* used for plotting last point on a line */

int pen;

int polymax = 200;

int polyi = 0;

POINT *ppt;

unsigned int ngwop=0;

BOOL isColor;

double line_width = 1.0;

unsigned int fillstyle = 0.0;

int idx;

if (lpgw->locked)

return;

/* HBB 20010218: the GDI status query functions don't work on Metafile

* handles, so can't know whether the screen is actually showing

* color or not, if drawgraph() is being called from CopyClip().

* Solve by defaulting isColor to 1 if hdc is a metafile. */

isColor = (((GetDeviceCaps(hdc, PLANES) * GetDeviceCaps(hdc,BITSPIXEL))

> 2)

|| (GetDeviceCaps(hdc, TECHNOLOGY) == DT_METAFILE));

if (lpgw->background != RGB(255,255,255) && lpgw->color && isColor) {

SetBkColor(hdc,lpgw->background);

FillRect(hdc, rect, lpgw->hbrush);

}

ppt = (POINT *)LocalAllocPtr(LHND, (polymax+1) * sizeof(POINT));

rr = rect->right;

rl = rect->left;

rt = rect->top;

rb = rect->bottom;

htic = lpgw->org_pointsize*MulDiv(lpgw->htic, rr - rl, lpgw->xmax) + 1;

vtic = lpgw->org_pointsize*MulDiv(lpgw->vtic, rb - rt, lpgw->ymax) + 1;

lpgw->angle = 0;

SetFont(lpgw, hdc);

SetTextAlign(hdc, TA_LEFT|TA_BASELINE);

/* calculate text shifting for horizontal text */

hshift = 0;

vshift = MulDiv(lpgw->vchar, rb - rt, lpgw->ymax)/2;

pen = 2;

SelectObject(hdc, lpgw->hapen);

SelectObject(hdc, lpgw->colorbrush[pen]);

/* do the drawing */

blkptr = lpgw->gwopblk_head;

curptr = NULL;

if (blkptr) {

if (!blkptr->gwop)

blkptr->gwop = (struct GWOP FAR *)GlobalLock(blkptr->hblk);

if (!blkptr->gwop)

return;

curptr = (struct GWOP FAR *)blkptr->gwop;

}

while(ngwop < lpgw->nGWOP) {

/* transform the coordinates */

xdash = MulDiv(curptr->x, rr-rl-1, lpgw->xmax) + rl;

ydash = MulDiv(curptr->y, rt-rb+1, lpgw->ymax) + rb - 1;

if ((lastop==W_vect) && (curptr->op!=W_vect)) {

if (polyi >= 2) {

Polyline(hdc, ppt, polyi);

/* Bastian's proposed new fix */

MoveTo(hdc, ppt[0].x, ppt[0].y);

}

else if (polyi == 1)

/* Bastian's earlier fix */

LineTo(hdc, ppt[0].x, ppt[0].y);

polyi = 0;

}

switch (curptr->op) {

case 0: /* have run past last in this block */

break;

case W_move:

ppt[0].x = xdash;

ppt[0].y = ydash;

polyi = 1;

break;

case W_vect:

ppt[polyi].x = xdash;

ppt[polyi].y = ydash;

polyi++;

if (polyi >= polymax) {

Polyline(hdc, ppt, polyi);

ppt[0].x = xdash;

ppt[0].y = ydash;

polyi = 1;

}

break;

case W_line_type:

{

LOGBRUSH lb;

LOGPEN cur_penstruct;

short cur_pen = ((curptr->x < (WORD)(-2))

? (curptr->x % WGNUMPENS) + 2

: curptr->x + 2);

/* set color only when second parameter to W_line_type equals 1 */

if (curptr->y != 1)

pen = cur_pen;

cur_penstruct = (lpgw->color && isColor) ?

lpgw->colorpen[pen] : lpgw->monopen[pen];

cur_penstruct.lopnColor = ((lpgw->color && isColor) ?

lpgw->colorpen[cur_pen] : lpgw->monopen[cur_pen]).lopnColor;

if (line_width != 1)

cur_penstruct.lopnWidth.x *= line_width;

/* use ExtCreatePen instead of CreatePen/CreatePenIndirect

* to support dashed lines if line_width > 1 */

lb.lbStyle = BS_SOLID;

lb.lbColor = cur_penstruct.lopnColor;

#if 0 /* shige work-around for Windows clipboard bug */

lpgw->hapen = ExtCreatePen(

(line_width==1 ? PS_COSMETIC : PS_GEOMETRIC) | cur_penstruct.lopnStyle | PS_ENDCAP_FLAT | PS_JOIN_BEVEL,

cur_penstruct.lopnWidth.x, &lb, 0, 0);

#else

if (line_width==1)

lpgw->hapen = CreatePenIndirect((LOGPEN FAR *) &cur_penstruct);

else

lpgw->hapen = ExtCreatePen(

PS_GEOMETRIC | cur_penstruct.lopnStyle | PS_ENDCAP_FLAT | PS_JOIN_BEVEL,

cur_penstruct.lopnWidth.x, &lb, 0, 0);

#endif

DeleteObject(SelectObject(hdc, lpgw->hapen));

SelectObject(hdc, lpgw->colorbrush[cur_pen]);

/* PM 7.7.2002: support color text */

SetTextColor(hdc, cur_penstruct.lopnColor);

}

break;

case W_put_text:

{

char *str;

str = LocalLock(curptr->htext);

if (str) {

/* shift correctly for rotated text */

xdash += hshift;

ydash += vshift;

SetBkMode(hdc,TRANSPARENT);

TextOut(hdc,xdash,ydash,str,lstrlen(str));

SetBkMode(hdc,OPAQUE);

}

LocalUnlock(curptr->htext);

}

break;

case W_fillstyle:

/* HBB 20010916: new entry, needed to squeeze the many

* parameters of a filled box call through the bottlneck

* of the fixed number of parameters in GraphOp() and

* struct GWOP, respectively. */

fillstyle = curptr->x;

break;

case W_boxfill: /* ULIG */

assert (polyi == 1);

/* NOTE: the x and y passed with this call are the width and

* height of the box, actually. The left corner was stored into

* ppt[0] by a preceding W_move, and the style was memorized

View remainder of file in raw view

gnuplot-old/src/win/wgraph.c at gnuplot-4-4-alpha · gnuplot/gnuplot-old · GitHub

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