Mac backend for the graphics subsystem.
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Just van Rossum
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343
demos/graph/mac/grmac.c
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343
demos/graph/mac/grmac.c
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/*******************************************************************
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*
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* grmac.c graphics driver for MacOS platform. 0.1
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*
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* This is the driver for displaying inside a window under MacOS,
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* used by the graphics utility of the FreeType test suite.
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*
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* Largely written by Just van Rossum, but derived from grwin32.c.
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* Copyright 1999-2000 by Just van Rossum, Antoine Leca,
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* Borrowing liberally from the other FreeType drivers.
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*
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* This file is part of the FreeType project, and may only be used
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* modified and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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******************************************************************/
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/* ANSI C */
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#include <string.h>
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/* Mac Toolbox */
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#include <Windows.h>
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/* FT graphics subsystem */
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#include "grmac.h"
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#include "grdevice.h"
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/* CodeWarrior's poor excuse for a console */
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#include <SIOUX.h>
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/* Mac function key definitions. The 0x100 is a kludge, see listen_event(). */
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#define KEY_F1 (0x7A | 0x100)
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#define KEY_F2 (0x78 | 0x100)
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#define KEY_F3 (0x63 | 0x100)
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#define KEY_F4 (0x76 | 0x100)
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#define KEY_F5 (0x60 | 0x100)
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#define KEY_F6 (0x61 | 0x100)
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#define KEY_F7 (0x62 | 0x100)
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#define KEY_F8 (0x64 | 0x100)
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#define KEY_F9 (0x65 | 0x100)
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#define KEY_F10 (0x6D | 0x100)
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#define KEY_F11 (0x67 | 0x100)
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#define KEY_F12 (0x6F | 0x100)
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#define KEY_F13 (0x69 | 0x100)
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#define KEY_F14 (0x6B | 0x100)
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#define KEY_F15 (0x71 | 0x100)
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/* Mac to FT key mapping */
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typedef struct _Translator
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{
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short mackey;
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grKey grkey;
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} Translator;
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static
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Translator key_translators[] =
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{
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{ kBackspaceCharCode, grKeyBackSpace },
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{ kTabCharCode, grKeyTab },
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{ kReturnCharCode, grKeyReturn },
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{ kEscapeCharCode, grKeyEsc },
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{ kHomeCharCode, grKeyHome },
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{ kLeftArrowCharCode, grKeyLeft },
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{ kUpArrowCharCode, grKeyUp },
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{ kRightArrowCharCode, grKeyRight },
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{ kDownArrowCharCode, grKeyDown },
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{ kPageUpCharCode, grKeyPageUp },
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{ kPageDownCharCode, grKeyPageDown },
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{ kEndCharCode, grKeyEnd },
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{ kHelpCharCode, grKeyF1 }, /* map Help key to F1... */
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{ KEY_F1, grKeyF1 },
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{ KEY_F2, grKeyF2 },
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{ KEY_F3, grKeyF3 },
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{ KEY_F4, grKeyF4 },
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{ KEY_F5, grKeyF5 },
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{ KEY_F6, grKeyF6 },
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{ KEY_F7, grKeyF7 },
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{ KEY_F8, grKeyF8 },
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{ KEY_F9, grKeyF9 },
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{ KEY_F10, grKeyF10 },
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{ KEY_F11, grKeyF11 },
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{ KEY_F12, grKeyF12 }
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};
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/* This is a minimalist driver, it is only able to display */
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/* a _single_ window. Moreover, only monochrome and gray */
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/* bitmaps are supported.. */
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/* pointer to the window. */
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static WindowPtr theWindow = NULL;
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/* the pixmap */
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static PixMap thePixMap;
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/* destroys the window */
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static
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void done_window( )
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{
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if ( theWindow )
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{
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DisposeWindow ( theWindow );
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}
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theWindow = NULL;
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}
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/* destroys the surface*/
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static
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void done_surface( grSurface* surface )
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{
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/* ick! this never gets called... */
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done_window();
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grDoneBitmap( &surface->bitmap );
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}
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static
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void refresh_rectangle( grSurface* surface,
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int x,
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int y,
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int w,
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int h )
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{
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Rect bounds;
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SetRect( &bounds, x, y, x+w, y+h );
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if ( theWindow )
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CopyBits( (BitMap*)&thePixMap, &theWindow->portBits,
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&bounds, &bounds, srcCopy, theWindow->visRgn );
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}
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static
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void set_title( grSurface* surface, const char* title )
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{
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Str255 pTitle;
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strcpy( (char*)pTitle+1, title );
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pTitle[0] = strlen( title );
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if ( theWindow )
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SetWTitle( theWindow, pTitle );
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}
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static
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void listen_event( grSurface* surface,
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int event_mask,
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grEvent* grevent )
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{
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grEvent our_grevent;
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EventRecord mac_event;
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short theEventMask = keyDownMask | autoKeyMask /* | updateEvtMask */ ;
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our_grevent.type = gr_event_none;
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our_grevent.key = grKeyNone;
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for ( ;; )
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/* The event loop. Sorry, but I'm too lazy to split the various events
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to proper event handler functions. This whole app is rather ad hoc
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anyway, so who cares ;-) */
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{
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if ( WaitNextEvent( everyEvent, &mac_event, 10, NULL ) )
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{
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switch ( mac_event.what )
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{
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case autoKey:
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case keyDown:
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{
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int count = sizeof( key_translators ) / sizeof( key_translators[0] );
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Translator* trans = key_translators;
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Translator* limit = trans + count;
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short char_code;
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char_code = mac_event.message & charCodeMask;
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if ( char_code == kFunctionKeyCharCode )
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/* Le kluge. Add a flag to differentiate the F-keys from normal keys. */
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char_code = 0x100 | ((mac_event.message & keyCodeMask) >> 8);
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our_grevent.key = char_code;
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for ( ; trans < limit; trans++ )
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/* see if the key maps to a special "gr" key */
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if ( char_code == trans->mackey )
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{
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our_grevent.key = trans->grkey;
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}
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our_grevent.type = gr_event_key;
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}
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if ( our_grevent.key == grKEY('q') || our_grevent.key == grKeyEsc )
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/* destroy the window here, since done_surface() doesn't get called */
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done_window();
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*grevent = our_grevent;
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return;
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case updateEvt:
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if ( theWindow && (WindowPtr)mac_event.message == theWindow )
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{
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BeginUpdate( theWindow );
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refresh_rectangle( surface,
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0, 0,
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thePixMap.bounds.right, thePixMap.bounds.bottom );
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EndUpdate( theWindow );
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}
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else
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{
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SIOUXHandleOneEvent( &mac_event );
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}
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break;
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case mouseDown:
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{
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short part;
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WindowPtr wid;
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part = FindWindow( mac_event.where, &wid );
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if ( wid == theWindow )
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{
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if ( theWindow && part == inDrag)
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DragWindow( wid, mac_event.where, &qd.screenBits.bounds );
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else if (part == inGoAway)
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{
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if ( TrackGoAway( theWindow, mac_event.where ) )
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{
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/* The user clicked the window away, emulate quit event */
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done_window();
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our_grevent.type = gr_event_key;
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our_grevent.key = grKeyEsc;
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*grevent = our_grevent;
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return;
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}
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}
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}
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else
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{
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SIOUXHandleOneEvent( &mac_event );
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}
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}
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break;
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default:
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InitCursor();
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break;
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}
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}
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}
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}
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static
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grSurface* init_surface( grSurface* surface,
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grBitmap* bitmap )
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{
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Rect bounds;
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SetRect(&bounds, 0, 0, bitmap->width, bitmap->rows);
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/* create the bitmap - under MacOS, we support all modes as the GDI */
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/* handles all conversions automatically.. */
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if ( grNewBitmap( bitmap->mode,
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bitmap->grays,
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bitmap->width,
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bitmap->rows,
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bitmap ) )
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return 0;
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surface->bitmap = *bitmap;
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/* initialize the PixMap to appropriate values */
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thePixMap.baseAddr = bitmap->buffer;
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thePixMap.rowBytes = bitmap->pitch;
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if (thePixMap.rowBytes < 0)
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thePixMap.rowBytes = -thePixMap.rowBytes;
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thePixMap.rowBytes |= 0x8000; /* flag indicating it's a PixMap, not a BitMap */
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thePixMap.bounds = bounds;
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thePixMap.pmVersion = 0;
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thePixMap.packType = 0;
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thePixMap.packSize = 0;
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thePixMap.hRes = 72 << 16;
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thePixMap.vRes = 72 << 16;
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thePixMap.pixelType = 0;
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thePixMap.cmpCount = 1;
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thePixMap.pmTable = 0;
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thePixMap.planeBytes = 0;
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thePixMap.pmReserved = 0;
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switch ( bitmap->mode )
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{
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case gr_pixel_mode_mono:
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thePixMap.cmpSize = 1;
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thePixMap.pixelSize = 1;
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break;
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case gr_pixel_mode_gray:
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thePixMap.cmpSize = 8;
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thePixMap.pixelSize = 8;
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thePixMap.pmTable = GetCTable(256); /* color palette matching FT's idea
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of grayscale. See ftview.rsrc */
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break;
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default:
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return 0; /* Unknown mode */
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}
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/* create the window */
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OffsetRect(&bounds, 10, 44); /* place it at a decent location */
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theWindow = NewCWindow(NULL, &bounds, "\p???", 1, 0, (GrafPtr)-1, 1, 0);
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/* fill in surface interface */
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surface->done = (grDoneSurfaceFunc) done_surface;
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surface->refresh_rect = (grRefreshRectFunc) refresh_rectangle;
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surface->set_title = (grSetTitleFunc) set_title;
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surface->listen_event = (grListenEventFunc) listen_event;
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return surface;
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}
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static int init_device( void )
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{
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return 0;
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}
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static void done_device( void )
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{
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/* won't get called either :-( */
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}
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grDevice gr_mac_device =
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{
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sizeof( grSurface ),
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"mac",
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init_device,
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done_device,
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(grDeviceInitSurfaceFunc) init_surface,
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0,
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0
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};
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/* End */
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23
demos/graph/mac/grmac.h
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23
demos/graph/mac/grmac.h
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@ -0,0 +1,23 @@
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#ifndef GRMAC_H
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#define GRMAC_H
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#include "grobjs.h"
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extern
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grDevice gr_mac_device;
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#ifdef GR_INIT_BUILD
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static
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grDeviceChain gr_mac_device_chain =
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{
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"mac",
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&gr_mac_device,
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GR_INIT_DEVICE_CHAIN
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};
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#undef GR_INIT_DEVICE_CHAIN
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#define GR_INIT_DEVICE_CHAIN &gr_mac_device_chain
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#endif /* GR_INIT_BUILD */
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#endif /* GRMAC_H */
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