Mac backend for the graphics subsystem.

This commit is contained in:
Just van Rossum 2000-03-02 01:18:38 +00:00
parent f21dac0209
commit 829fbf194e
2 changed files with 366 additions and 0 deletions

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demos/graph/mac/grmac.c Normal file
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/*******************************************************************
*
* grmac.c graphics driver for MacOS platform. 0.1
*
* This is the driver for displaying inside a window under MacOS,
* used by the graphics utility of the FreeType test suite.
*
* Largely written by Just van Rossum, but derived from grwin32.c.
* Copyright 1999-2000 by Just van Rossum, Antoine Leca,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* Borrowing liberally from the other FreeType drivers.
*
* This file is part of the FreeType project, and may only be used
* modified and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
******************************************************************/
/* ANSI C */
#include <string.h>
/* Mac Toolbox */
#include <Windows.h>
/* FT graphics subsystem */
#include "grmac.h"
#include "grdevice.h"
/* CodeWarrior's poor excuse for a console */
#include <SIOUX.h>
/* Mac function key definitions. The 0x100 is a kludge, see listen_event(). */
#define KEY_F1 (0x7A | 0x100)
#define KEY_F2 (0x78 | 0x100)
#define KEY_F3 (0x63 | 0x100)
#define KEY_F4 (0x76 | 0x100)
#define KEY_F5 (0x60 | 0x100)
#define KEY_F6 (0x61 | 0x100)
#define KEY_F7 (0x62 | 0x100)
#define KEY_F8 (0x64 | 0x100)
#define KEY_F9 (0x65 | 0x100)
#define KEY_F10 (0x6D | 0x100)
#define KEY_F11 (0x67 | 0x100)
#define KEY_F12 (0x6F | 0x100)
#define KEY_F13 (0x69 | 0x100)
#define KEY_F14 (0x6B | 0x100)
#define KEY_F15 (0x71 | 0x100)
/* Mac to FT key mapping */
typedef struct _Translator
{
short mackey;
grKey grkey;
} Translator;
static
Translator key_translators[] =
{
{ kBackspaceCharCode, grKeyBackSpace },
{ kTabCharCode, grKeyTab },
{ kReturnCharCode, grKeyReturn },
{ kEscapeCharCode, grKeyEsc },
{ kHomeCharCode, grKeyHome },
{ kLeftArrowCharCode, grKeyLeft },
{ kUpArrowCharCode, grKeyUp },
{ kRightArrowCharCode, grKeyRight },
{ kDownArrowCharCode, grKeyDown },
{ kPageUpCharCode, grKeyPageUp },
{ kPageDownCharCode, grKeyPageDown },
{ kEndCharCode, grKeyEnd },
{ kHelpCharCode, grKeyF1 }, /* map Help key to F1... */
{ KEY_F1, grKeyF1 },
{ KEY_F2, grKeyF2 },
{ KEY_F3, grKeyF3 },
{ KEY_F4, grKeyF4 },
{ KEY_F5, grKeyF5 },
{ KEY_F6, grKeyF6 },
{ KEY_F7, grKeyF7 },
{ KEY_F8, grKeyF8 },
{ KEY_F9, grKeyF9 },
{ KEY_F10, grKeyF10 },
{ KEY_F11, grKeyF11 },
{ KEY_F12, grKeyF12 }
};
/* This is a minimalist driver, it is only able to display */
/* a _single_ window. Moreover, only monochrome and gray */
/* bitmaps are supported.. */
/* pointer to the window. */
static WindowPtr theWindow = NULL;
/* the pixmap */
static PixMap thePixMap;
/* destroys the window */
static
void done_window( )
{
if ( theWindow )
{
DisposeWindow ( theWindow );
}
theWindow = NULL;
}
/* destroys the surface*/
static
void done_surface( grSurface* surface )
{
/* ick! this never gets called... */
done_window();
grDoneBitmap( &surface->bitmap );
}
static
void refresh_rectangle( grSurface* surface,
int x,
int y,
int w,
int h )
{
Rect bounds;
SetRect( &bounds, x, y, x+w, y+h );
if ( theWindow )
CopyBits( (BitMap*)&thePixMap, &theWindow->portBits,
&bounds, &bounds, srcCopy, theWindow->visRgn );
}
static
void set_title( grSurface* surface, const char* title )
{
Str255 pTitle;
strcpy( (char*)pTitle+1, title );
pTitle[0] = strlen( title );
if ( theWindow )
SetWTitle( theWindow, pTitle );
}
static
void listen_event( grSurface* surface,
int event_mask,
grEvent* grevent )
{
grEvent our_grevent;
EventRecord mac_event;
short theEventMask = keyDownMask | autoKeyMask /* | updateEvtMask */ ;
our_grevent.type = gr_event_none;
our_grevent.key = grKeyNone;
for ( ;; )
/* The event loop. Sorry, but I'm too lazy to split the various events
to proper event handler functions. This whole app is rather ad hoc
anyway, so who cares ;-) */
{
if ( WaitNextEvent( everyEvent, &mac_event, 10, NULL ) )
{
switch ( mac_event.what )
{
case autoKey:
case keyDown:
{
int count = sizeof( key_translators ) / sizeof( key_translators[0] );
Translator* trans = key_translators;
Translator* limit = trans + count;
short char_code;
char_code = mac_event.message & charCodeMask;
if ( char_code == kFunctionKeyCharCode )
/* Le kluge. Add a flag to differentiate the F-keys from normal keys. */
char_code = 0x100 | ((mac_event.message & keyCodeMask) >> 8);
our_grevent.key = char_code;
for ( ; trans < limit; trans++ )
/* see if the key maps to a special "gr" key */
if ( char_code == trans->mackey )
{
our_grevent.key = trans->grkey;
}
our_grevent.type = gr_event_key;
}
if ( our_grevent.key == grKEY('q') || our_grevent.key == grKeyEsc )
/* destroy the window here, since done_surface() doesn't get called */
done_window();
*grevent = our_grevent;
return;
case updateEvt:
if ( theWindow && (WindowPtr)mac_event.message == theWindow )
{
BeginUpdate( theWindow );
refresh_rectangle( surface,
0, 0,
thePixMap.bounds.right, thePixMap.bounds.bottom );
EndUpdate( theWindow );
}
else
{
SIOUXHandleOneEvent( &mac_event );
}
break;
case mouseDown:
{
short part;
WindowPtr wid;
part = FindWindow( mac_event.where, &wid );
if ( wid == theWindow )
{
if ( theWindow && part == inDrag)
DragWindow( wid, mac_event.where, &qd.screenBits.bounds );
else if (part == inGoAway)
{
if ( TrackGoAway( theWindow, mac_event.where ) )
{
/* The user clicked the window away, emulate quit event */
done_window();
our_grevent.type = gr_event_key;
our_grevent.key = grKeyEsc;
*grevent = our_grevent;
return;
}
}
}
else
{
SIOUXHandleOneEvent( &mac_event );
}
}
break;
default:
InitCursor();
break;
}
}
}
}
static
grSurface* init_surface( grSurface* surface,
grBitmap* bitmap )
{
Rect bounds;
SetRect(&bounds, 0, 0, bitmap->width, bitmap->rows);
/* create the bitmap - under MacOS, we support all modes as the GDI */
/* handles all conversions automatically.. */
if ( grNewBitmap( bitmap->mode,
bitmap->grays,
bitmap->width,
bitmap->rows,
bitmap ) )
return 0;
surface->bitmap = *bitmap;
/* initialize the PixMap to appropriate values */
thePixMap.baseAddr = bitmap->buffer;
thePixMap.rowBytes = bitmap->pitch;
if (thePixMap.rowBytes < 0)
thePixMap.rowBytes = -thePixMap.rowBytes;
thePixMap.rowBytes |= 0x8000; /* flag indicating it's a PixMap, not a BitMap */
thePixMap.bounds = bounds;
thePixMap.pmVersion = 0;
thePixMap.packType = 0;
thePixMap.packSize = 0;
thePixMap.hRes = 72 << 16;
thePixMap.vRes = 72 << 16;
thePixMap.pixelType = 0;
thePixMap.cmpCount = 1;
thePixMap.pmTable = 0;
thePixMap.planeBytes = 0;
thePixMap.pmReserved = 0;
switch ( bitmap->mode )
{
case gr_pixel_mode_mono:
thePixMap.cmpSize = 1;
thePixMap.pixelSize = 1;
break;
case gr_pixel_mode_gray:
thePixMap.cmpSize = 8;
thePixMap.pixelSize = 8;
thePixMap.pmTable = GetCTable(256); /* color palette matching FT's idea
of grayscale. See ftview.rsrc */
break;
default:
return 0; /* Unknown mode */
}
/* create the window */
OffsetRect(&bounds, 10, 44); /* place it at a decent location */
theWindow = NewCWindow(NULL, &bounds, "\p???", 1, 0, (GrafPtr)-1, 1, 0);
/* fill in surface interface */
surface->done = (grDoneSurfaceFunc) done_surface;
surface->refresh_rect = (grRefreshRectFunc) refresh_rectangle;
surface->set_title = (grSetTitleFunc) set_title;
surface->listen_event = (grListenEventFunc) listen_event;
return surface;
}
static int init_device( void )
{
return 0;
}
static void done_device( void )
{
/* won't get called either :-( */
}
grDevice gr_mac_device =
{
sizeof( grSurface ),
"mac",
init_device,
done_device,
(grDeviceInitSurfaceFunc) init_surface,
0,
0
};
/* End */

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#ifndef GRMAC_H
#define GRMAC_H
#include "grobjs.h"
extern
grDevice gr_mac_device;
#ifdef GR_INIT_BUILD
static
grDeviceChain gr_mac_device_chain =
{
"mac",
&gr_mac_device,
GR_INIT_DEVICE_CHAIN
};
#undef GR_INIT_DEVICE_CHAIN
#define GR_INIT_DEVICE_CHAIN &gr_mac_device_chain
#endif /* GR_INIT_BUILD */
#endif /* GRMAC_H */