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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 259 | daniel-mar | 1 | /* |
| 2 | This file is part of Filter Foundry, a filter plugin for Adobe Photoshop |
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| 3 | Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au |
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| 4 | Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft |
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| 5 | |||
| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |||
| 11 | This program is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |||
| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with this program; if not, write to the Free Software |
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| 18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 19 | */ |
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| 20 | |||
| 21 | #include "preview.h" |
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| 22 | #include "ui.h" |
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| 23 | |||
| 24 | extern CursHandle handcursor; // provided and initialised by ui_mac.c |
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| 25 | |||
| 26 | pascal void preview_item(DialogRef dp,DialogItemIndex item); |
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| 27 | pascal Boolean previewfilter(DialogRef dialog,EventRecord *event,short *item); |
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| 28 | |||
| 29 | pascal void preview_item(DialogRef dp,DialogItemIndex item){ |
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| 30 | GrafPtr port; |
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| 31 | |||
| 32 | ENTERCALLBACK(); |
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| 33 | |||
| 34 | GetPort(&port); |
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| 35 | SetPortDialogPort(dp); |
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| 36 | |||
| 37 | drawpreview(dp,0,PILOCKHANDLE(preview_handle,false)); |
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| 38 | PIUNLOCKHANDLE(preview_handle); |
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| 39 | |||
| 40 | FrameRect(&preview_rect); |
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| 41 | |||
| 42 | SetPort(port); |
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| 43 | |||
| 44 | EXITCALLBACK(); |
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| 45 | } |
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| 46 | |||
| 47 | // The following code is not actually used by Filter Foundry; |
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| 48 | // it implements an event filter for plugins that need |
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| 49 | // only preview functionality (without sliders). |
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| 50 | |||
| 51 | pascal Boolean previewfilter(DialogRef dialog,EventRecord *event,short *item){ |
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| 52 | int i; |
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| 53 | Point pt,origscroll,newscroll; |
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| 54 | Boolean result = false,f; |
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| 55 | EventRecord ev; |
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| 56 | GrafPtr oldport; |
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| 57 | |||
| 58 | ENTERCALLBACK(); |
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| 59 | |||
| 60 | GetPort(&oldport); |
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| 61 | SetPortDialogPort(dialog); |
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| 62 | |||
| 63 | if( !event->what || (event->what == updateEvt |
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| 64 | && (WindowRef)event->message != GetDialogWindow(dialog)) ) |
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| 65 | { // pass null events and update events to Photoshop |
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| 66 | gpb->processEvent(event); |
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| 67 | } |
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| 68 | else if(event->what == mouseDown){ |
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| 69 | pt = event->where; |
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| 70 | GlobalToLocal(&pt); |
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| 71 | |||
| 72 | i = FindDialogItem(dialog,pt)+1; |
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| 73 | if(i == PREVIEWITEM){ |
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| 74 | SetCursor(*handcursor); |
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| 75 | origscroll = preview_scroll; |
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| 76 | do{ |
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| 77 | f = WaitNextEvent(mUpMask,&ev,5,NULL); |
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| 78 | newscroll.h = origscroll.h - zoomfactor*(ev.where.h - event->where.h); |
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| 79 | newscroll.v = origscroll.v - zoomfactor*(ev.where.v - event->where.v); |
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| 80 | if(!EqualPt(newscroll,preview_scroll)){ |
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| 81 | preview_scroll = newscroll; |
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| 82 | recalc_preview(gpb,dialog); |
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| 83 | } |
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| 84 | }while(!f); |
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| 85 | |||
| 86 | *item = i; |
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| 87 | result = true; |
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| 88 | } |
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| 89 | } |
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| 90 | else |
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| 91 | result = StdFilterProc(dialog,event,item); |
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| 92 | |||
| 93 | SetPort(oldport); |
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| 94 | |||
| 95 | EXITCALLBACK(); |
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| 96 | |||
| 97 | return result; |
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| 98 | } |