108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
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/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Jacob Navia, after Xavier Leroy */
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/* */
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/* Copyright 2001 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#include <stdio.h>
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#include <windows.h>
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struct canvas {
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int w, h; /* Dimensions of the drawable */
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HWND win; /* The drawable itself */
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HDC gc; /* The associated graphics context */
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};
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extern HWND grdisplay; /* The display connection */
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//extern int grscreen; /* The screen number */
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//extern Colormap grcolormap; /* The color map */
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//extern struct canvas grwindow; /* The graphics window */
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//extern struct canvas grbstore; /* The pixmap used for backing store */
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//extern int grwhite, grblack; /* Black and white pixels for X */
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//extern int grbackground; /* Background color for X
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// (used for CAML color -1) */
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extern COLORREF grbackground;
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extern BOOL grdisplay_mode; /* Display-mode flag */
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extern BOOL grremember_mode; /* Remember-mode flag */
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extern int grx, gry; /* Coordinates of the current point */
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extern int grcolor; /* Current *CAML* drawing color (can be -1) */
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extern HFONT * grfont; /* Current font */
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extern BOOL direct_rgb;
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extern int byte_order;
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extern int bitmap_unit;
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extern int bits_per_pixel;
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#define Wcvt(y) (grwindow.height - 1 - (y))
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#define Bcvt(y) (grwindow.height - 1 - (y))
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#define WtoB(y) ((y) + WindowRect.bottom - grwindow.h)
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//#define BtoW(y) ((y) + WindowRect.bottom - grbstore.h)
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#define DEFAULT_SCREEN_WIDTH 1024
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#define DEFAULT_SCREEN_HEIGHT 768
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#define BORDER_WIDTH 2
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#define WINDOW_NAME "Caml graphics"
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#define ICON_NAME "Caml graphics"
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#define DEFAULT_EVENT_MASK \
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(ExposureMask | KeyPressMask | StructureNotifyMask)
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#define DEFAULT_FONT "fixed"
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#define SIZE_QUEUE 256
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/* To handle events asynchronously */
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#ifdef HAS_ASYNC_IO
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#define USE_ASYNC_IO
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#define EVENT_SIGNAL SIGIO
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#else
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#ifdef HAS_SETITIMER
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#define USE_INTERVAL_TIMER
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#define EVENT_SIGNAL SIGALRM
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#else
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#define USE_ALARM
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#define EVENT_SIGNAL SIGALRM
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#endif
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#endif
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void gr_fail(char *fmt, char *arg);
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void gr_check_open(void);
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unsigned long gr_pixel_rgb(int rgb);
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int gr_rgb_pixel(long unsigned int pixel);
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void gr_enqueue_char(unsigned char c);
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void gr_init_color_cache(void);
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// Windows specific definitions
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extern RECT WindowRect;
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extern int grCurrentColor;
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typedef struct tagWindow {
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HDC gc;
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HDC gcBitmap;
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HWND hwnd;
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HBRUSH CurrentBrush;
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HPEN CurrentPen;
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DWORD CurrentColor;
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int width;
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int height;
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int grx;
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int gry;
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HBITMAP hBitmap;
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HFONT CurrentFont;
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int CurrentFontSize;
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HDC tempDC; // For image operations;
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} GR_WINDOW;
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extern GR_WINDOW grwindow;
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HFONT CreationFont(char *name);
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extern int MouseLbuttonDown,MouseMbuttonDown,MouseRbuttonDown;
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extern HANDLE EventHandle;
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extern int InspectMessages;
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extern MSG msg;
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