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Rev | Author | Line No. | Line |
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94 | toby | 1 | /* |
2 | This file is part of Filter Foundry, a filter plugin for Adobe Photoshop |
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171 | dmarschall | 3 | Copyright (C) 2003-2019 Toby Thain, toby@telegraphics.com.au |
94 | toby | 4 | |
5 | This program is free software; you can redistribute it and/or modify |
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171 | dmarschall | 6 | it under the terms of the GNU General Public License as published by |
94 | toby | 7 | the Free Software Foundation; either version 2 of the License, or |
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 | |||
171 | dmarschall | 15 | You should have received a copy of the GNU General Public License |
94 | toby | 16 | along with this program; if not, write to the Free Software |
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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171 | dmarschall | 30 | |
94 | toby | 31 | ENTERCALLBACK(); |
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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171 | dmarschall | 40 | |
94 | toby | 41 | SetPort(port); |
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 | |||
171 | dmarschall | 50 | pascal Boolean previewfilter(DialogRef dialog,EventRecord *event,short *item){ |
94 | toby | 51 | int i; |
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 | |||
171 | dmarschall | 62 | if( !event->what || (event->what == updateEvt |
95 | toby | 63 | && (WindowRef)event->message != GetDialogWindow(dialog)) ) |
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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171 | dmarschall | 70 | |
94 | toby | 71 | i = FindDialogItem(dialog,pt)+1; |
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); |
171 | dmarschall | 91 | |
94 | toby | 92 | SetPort(oldport); |
93 | |||
94 | EXITCALLBACK(); |
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95 | |||
96 | return result; |
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97 | } |