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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 94 | toby | 1 | /* |
| 2 | This file is part of Filter Foundry, a filter plugin for Adobe Photoshop |
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| 3 | Copyright (C) 2003-7 Toby Thain, toby@telegraphics.com.au |
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| 4 | |||
| 5 | This program is free software; you can redistribute it and/or modify |
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| 6 | it under the terms of the GNU General Public License as published by |
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| 7 | the Free Software Foundation; either version 2 of the License, or |
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| 8 | (at your option) any later version. |
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| 9 | |||
| 10 | This program is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | GNU General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program; if not, write to the Free Software |
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| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 18 | */ |
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| 19 | |||
| 20 | #include "preview.h" |
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| 21 | #include "ui.h" |
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| 22 | |||
| 23 | extern CursHandle handcursor; // provided and initialised by ui_mac.c |
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| 24 | |||
| 25 | pascal void preview_item(DialogRef dp,DialogItemIndex item); |
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| 26 | pascal Boolean previewfilter(DialogRef dialog,EventRecord *event,short *item); |
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| 27 | |||
| 28 | pascal void preview_item(DialogRef dp,DialogItemIndex item){ |
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| 29 | GrafPtr port; |
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| 30 | |||
| 31 | ENTERCALLBACK(); |
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| 32 | |||
| 33 | GetPort(&port); |
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| 34 | SetPortDialogPort(dp); |
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| 35 | |||
| 36 | drawpreview(dp,0,PILOCKHANDLE(preview_handle,false)); |
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| 37 | PIUNLOCKHANDLE(preview_handle); |
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| 38 | |||
| 39 | FrameRect(&preview_rect); |
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| 40 | |||
| 41 | SetPort(port); |
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| 42 | |||
| 43 | EXITCALLBACK(); |
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| 44 | } |
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| 45 | |||
| 95 | toby | 46 | // The following code is not actually used by Filter Foundry; |
| 47 | // it implements an event filter for plugins that need |
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| 94 | toby | 48 | // only preview functionality (without sliders). |
| 49 | |||
| 50 | pascal Boolean previewfilter(DialogRef dialog,EventRecord *event,short *item){ |
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| 51 | int i; |
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| 52 | Point pt,origscroll,newscroll; |
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| 53 | Boolean result = false,f; |
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| 54 | EventRecord ev; |
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| 55 | GrafPtr oldport; |
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| 56 | |||
| 57 | ENTERCALLBACK(); |
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| 58 | |||
| 59 | GetPort(&oldport); |
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| 60 | SetPortDialogPort(dialog); |
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| 61 | |||
| 95 | toby | 62 | if( !event->what || (event->what == updateEvt |
| 63 | && (WindowRef)event->message != GetDialogWindow(dialog)) ) |
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| 64 | { // pass null events and update events to Photoshop |
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| 94 | toby | 65 | gpb->processEvent(event); |
| 95 | toby | 66 | } |
| 67 | else if(event->what == mouseDown){ |
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| 94 | toby | 68 | pt = event->where; |
| 69 | GlobalToLocal(&pt); |
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| 70 | |||
| 71 | i = FindDialogItem(dialog,pt)+1; |
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| 72 | if(i == PREVIEWITEM){ |
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| 73 | SetCursor(*handcursor); |
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| 74 | origscroll = preview_scroll; |
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| 75 | do{ |
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| 76 | f = WaitNextEvent(mUpMask,&ev,5,NULL); |
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| 77 | newscroll.h = origscroll.h - zoomfactor*(ev.where.h - event->where.h); |
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| 78 | newscroll.v = origscroll.v - zoomfactor*(ev.where.v - event->where.v); |
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| 79 | if(!EqualPt(newscroll,preview_scroll)){ |
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| 80 | preview_scroll = newscroll; |
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| 81 | recalc_preview(gpb,dialog); |
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| 82 | } |
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| 83 | }while(!f); |
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| 84 | |||
| 85 | *item = i; |
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| 86 | result = true; |
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| 87 | } |
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| 95 | toby | 88 | } |
| 89 | else |
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| 94 | toby | 90 | result = StdFilterProc(dialog,event,item); |
| 91 | |||
| 92 | SetPort(oldport); |
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| 93 | |||
| 94 | EXITCALLBACK(); |
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| 95 | |||
| 96 | return result; |
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| 97 | } |