237
|
1 /* Copyright (C) 2003,2004 WTWG Uni Bern and others
|
|
2
|
|
3 This program is free software; you can redistribute it and/or
|
|
4 modify it under the terms of the GNU General Public License
|
|
5 as published by the Free Software Foundation; either version 2
|
|
6 of the License, or (at your option) any later version.
|
|
7
|
|
8 This program is distributed in the hope that it will be useful,
|
|
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
11 GNU General Public License for more details.
|
|
12
|
|
13 You should have received a copy of the GNU General Public License
|
|
14 along with this program; if not, write to the Free Software
|
|
15 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
16
|
|
17 Authors: ROC 3.5.2004
|
|
18 first version by Christian Luginbuehl, 01.05.2003
|
|
19 Changed for digiLib in Zope by DW 24.03.2004
|
|
20
|
|
21 Requires baselib.js !
|
|
22
|
|
23 */
|
|
24
|
|
25 var dlScriptVersion = "0.9a1";
|
|
26
|
|
27 /*
|
|
28 * more parameter handling
|
|
29 */
|
|
30
|
|
31 var dlArea = new Rectangle(0.0, 0.0, 1.0, 1.0);
|
|
32 var dlMaxArea = new Rectangle(0.0, 0.0, 1.0, 1.0);
|
|
33
|
|
34 function parseArea() {
|
|
35 // returns area Rectangle from current parameters
|
|
36 return new Rectangle(getParameter("wx"), getParameter("wy"), getParameter("ww"), getParameter("wh"));
|
|
37 }
|
|
38
|
|
39 function setParamFromArea(rect) {
|
|
40 // sets digilib wx etc. from rect
|
|
41 setParameter("wx", cropFloat(rect.x));
|
|
42 setParameter("wy", cropFloat(rect.y));
|
|
43 setParameter("ww", cropFloat(rect.width));
|
|
44 setParameter("wh", cropFloat(rect.height));
|
|
45 return true;
|
|
46 }
|
|
47
|
|
48 var dlTrafo = new Transform();
|
|
49
|
|
50 function parseTrafo(elem) {
|
|
51 // returns Transform from current dlArea and picsize
|
|
52 var picsize = getElementRect(elem);
|
|
53 var trafo = new Transform();
|
|
54 // subtract area offset and size
|
|
55 trafo.concat(getTranslation(new Position(-dlArea.x, -dlArea.y)));
|
|
56 trafo.concat(getScale(new Size(1/dlArea.width, 1/dlArea.height)));
|
|
57 // scale to screen size
|
|
58 trafo.concat(getScale(picsize));
|
|
59 trafo.concat(getTranslation(picsize));
|
|
60 // rotate
|
|
61 //trafo.concat(getRotation(- getParameter("rot"), new Position(0.5*picsize.width, 0.5*picsize.height)));
|
|
62 // mirror
|
|
63 //if (hasFlag("hmir")) {
|
|
64 //trafo.m00 = - trafo.m00;
|
|
65 //}
|
|
66 //if (hasFlag("vmir")) {
|
|
67 //trafo.m11 = - trafo.m11;
|
|
68 //}
|
|
69 return trafo;
|
|
70 }
|
|
71
|
|
72
|
|
73 var dlMarks = new Array();
|
|
74
|
|
75 function parseMarks() {
|
|
76 // returns marks array from current parameters
|
|
77 var marks = new Array();
|
|
78 var ma;
|
|
79 var mk = getParameter("mk");
|
|
80 if (mk.indexOf(";") >= 0) {
|
|
81 // old format with ";"
|
|
82 ma = mk.split(";");
|
|
83 } else {
|
|
84 ma = mk.split(",");
|
|
85 }
|
|
86 for (var i = 0; i < ma.length ; i++) {
|
|
87 var pos = ma[i].split("/");
|
|
88 if (pos.length > 1) {
|
|
89 marks.push(new Position(pos[0], pos[1]));
|
|
90 }
|
|
91 }
|
|
92 return marks;
|
|
93 }
|
|
94
|
|
95 function getAllMarks() {
|
|
96 // returns a string with all marks in query format
|
|
97 var marks = new Array();
|
|
98 for (var i = 0; i < dlMarks.length; i++) {
|
|
99 marks.push(cropFloat(dlMarks[i].x) + "/" + cropFloat(dlMarks[i].y));
|
|
100 }
|
|
101 return marks.join(",");
|
|
102 }
|
|
103
|
|
104 function addMark(pos) {
|
|
105 // add a mark
|
|
106 dlMarks.push(pos);
|
|
107 setParameter("mk", getAllMarks());
|
|
108 return true;
|
|
109 }
|
|
110
|
|
111 function deleteMark() {
|
|
112 // delete the last mark
|
|
113 dlMarks.pop();
|
|
114 setParameter("mk", getAllMarks());
|
|
115 return true;
|
|
116 }
|
|
117
|
|
118 var dlFlags = new Object();
|
|
119
|
|
120 function hasFlag(mode) {
|
|
121 // returns if mode flag is set
|
|
122 return (dlFlags[mode]);
|
|
123 }
|
|
124
|
|
125 function addFlag(mode) {
|
|
126 // add a mode flag
|
|
127 dlFlags[mode] = mode;
|
|
128 return true;
|
|
129 }
|
|
130
|
|
131 function removeFlag(mode) {
|
|
132 // remove a mode flag
|
|
133 if (dlFlags[mode]) {
|
|
134 delete dlFlags[mode];
|
|
135 }
|
|
136 return true;
|
|
137 }
|
|
138
|
|
139 function toggleFlag(mode) {
|
|
140 // change a mode flag
|
|
141 if (dlFlags[mode]) {
|
|
142 delete dlFlags[mode];
|
|
143 } else {
|
|
144 dlFlags[mode] = mode;
|
|
145 }
|
|
146 return true;
|
|
147 }
|
|
148
|
|
149 function getAllFlags() {
|
|
150 // returns a string with all flags in query format
|
|
151 var fa = new Array();
|
|
152 for (var f in dlFlags) {
|
|
153 if ((f != "")&&(dlFlags[f] != null)) {
|
|
154 fa.push(f);
|
|
155 }
|
|
156 }
|
|
157 return fa.join(",");
|
|
158 }
|
|
159
|
|
160 function parseFlags() {
|
|
161 // sets dlFlags from the current parameters
|
|
162 var flags = new Object();
|
|
163 var fa = getParameter("mo").split(",");
|
|
164 for (var i = 0; i < fa.length ; i++) {
|
|
165 var f = fa[i];
|
|
166 if (f != "") {
|
|
167 flags[f] = f;
|
|
168 }
|
|
169 }
|
|
170 return flags;
|
|
171 }
|
|
172
|
|
173
|
|
174 function bestPicSize(elem, inset) {
|
|
175 // returns a Size with the best image size for the given element
|
|
176 if (! defined(inset)) {
|
|
177 inset = 25;
|
|
178 }
|
|
179 var ws = getWinSize();
|
|
180 var es = getElementPosition(elem);
|
|
181 if (es) {
|
|
182 ws.width = ws.width - es.x - inset;
|
|
183 ws.height = ws.height - es.y - inset;
|
|
184 }
|
|
185 return ws;
|
|
186 }
|
|
187
|
|
188
|
|
189 /* **********************************************
|
|
190 * digilib specific routines
|
|
191 * ******************************************** */
|
|
192
|
|
193 var elemScaler = null;
|
|
194 var picElem = null;
|
|
195
|
|
196 function dl_init() {
|
|
197 elemScaler = getElement("scaler", true);
|
|
198 picElem = getElement("pic", true);
|
|
199 if (picElem == null && elemScaler) {
|
|
200 // in N4 pic is in the scaler layer
|
|
201 picElem = elemScaler.document.images[0];
|
|
202 }
|
|
203 if ((!elemScaler)||(!picElem)) {
|
|
204 alert("Sorry, zogilib doesn't work here!");
|
|
205 return false;
|
|
206 }
|
|
207 // give a name to the window containing digilib
|
|
208 if (defined(dlTarget)&&(dlTarget)) {
|
|
209 window.name = dlTarget;
|
|
210 } else {
|
|
211 window.name = "digilib";
|
|
212 }
|
|
213 // put the query parameters (sans "?") in the parameters array
|
|
214 parseParameters(location.search.slice(1));
|
|
215 // treat special parameters
|
|
216 dlMarks = parseMarks();
|
|
217 dlArea = parseArea();
|
|
218 dlFlags = parseFlags();
|
|
219 // wait for image to load and display marks
|
|
220 renderMarks();
|
|
221 // done
|
|
222 focus();
|
|
223 return;
|
|
224 }
|
|
225
|
|
226
|
|
227 function display(detail) {
|
|
228 // redisplay the page
|
|
229 if (! detail) {
|
|
230 detail = 9;
|
|
231 }
|
|
232 var queryString = getAllParameters(detail);
|
|
233 location.href = location.protocol + "//" + location.host + location.pathname + "?" + queryString;
|
|
234 }
|
|
235
|
|
236
|
|
237 /* **********************************************
|
|
238 * interactive digilib functions
|
|
239 * ******************************************** */
|
|
240
|
|
241
|
|
242 function renderMarks() {
|
|
243 // put the visible marks on the image
|
|
244 var mark_count = dlMarks.length;
|
|
245 // make shure the image is loaded so we know its size
|
|
246 if (defined(picElem.complete) && picElem.complete == false && ! browserType.isN4 ) {
|
|
247 setTimeout("renderMarks()", 100);
|
|
248 } else {
|
|
249 dlTrafo = parseTrafo(picElem);
|
|
250 for (var i = 0; i < 8; i++) {
|
|
251 var me = getElement("dot"+i);
|
|
252 if (i < mark_count) {
|
|
253 if (dlArea.containsPosition(dlMarks[i])) {
|
|
254 var mpos = dlTrafo.transform(dlMarks[i]);
|
|
255 // suboptimal to place -5 pixels and not half size of mark-image
|
|
256 mpos.x = mpos.x -5;
|
|
257 mpos.y = mpos.y -5;
|
|
258 moveElement(me, mpos);
|
|
259 showElement(me, true);
|
|
260 }
|
|
261 } else {
|
|
262 // hide the other marks
|
|
263 showElement(me, false);
|
|
264 }
|
|
265 }
|
|
266 }
|
|
267 }
|
|
268
|
|
269
|
|
270 function setMark() {
|
|
271 // add a mark where clicked
|
|
272 if ( dlMarks.length > 7 ) {
|
|
273 alert("Only 8 marks are possible at the moment!");
|
|
274 return;
|
|
275 }
|
|
276
|
|
277 function markEvent(evt) {
|
|
278 // event handler adding a new mark
|
|
279 unregisterMouseDown(elemScaler, markEvent);
|
|
280 var p = dlTrafo.invtransform(evtPosition(evt));
|
|
281 addMark(p);
|
|
282 display();
|
|
283 }
|
|
284
|
|
285 // starting event capture
|
|
286 registerMouseDown(elemScaler, markEvent);
|
|
287 }
|
|
288
|
|
289
|
|
290 function zoomArea() {
|
|
291 var click = 1;
|
|
292 var pt1, pt2;
|
|
293 var eck1pos, eck2pos, eck3pos, eck4pos;
|
|
294 window.focus();
|
|
295 var eck1 = getElement("eck1");
|
|
296 var eck2 = getElement("eck2");
|
|
297 var eck3 = getElement("eck3");
|
|
298 var eck4 = getElement("eck4");
|
|
299
|
|
300 function zoomClick(evt) {
|
|
301 // mouse click handler
|
|
302 if (click == 1) {
|
|
303 // first click -- start moving
|
|
304 click = 2;
|
|
305 pt1 = evtPosition(evt);
|
|
306 pt2 = pt1;
|
|
307 eck1pos = pt1;
|
|
308 eck2pos = new Position(pt1.x - 12, pt1.y);
|
|
309 eck3pos = new Position(pt1.x, pt1.y - 12);
|
|
310 eck4pos = new Position(pt1.y - 12, pt1.y - 12);
|
|
311 moveElement(eck1, eck1pos);
|
|
312 moveElement(eck2, eck2pos);
|
|
313 moveElement(eck3, eck3pos);
|
|
314 moveElement(eck4, eck4pos);
|
|
315 showElement(eck1, true);
|
|
316 showElement(eck2, true);
|
|
317 showElement(eck3, true);
|
|
318 showElement(eck4, true);
|
|
319 registerMouseMove(elemScaler, zoomMove);
|
|
320 registerMouseMove(eck4, zoomMove);
|
|
321 } else {
|
|
322 // second click -- end moving
|
|
323 pt2 = evtPosition(evt);
|
|
324 showElement(eck1, false);
|
|
325 showElement(eck2, false);
|
|
326 showElement(eck3, false);
|
|
327 showElement(eck4, false);
|
|
328 unregisterMouseMove(elemScaler, zoomMove);
|
|
329 unregisterMouseMove(eck4, zoomMove);
|
|
330 unregisterMouseDown(elemScaler, zoomClick);
|
|
331 unregisterMouseDown(eck4, zoomClick);
|
|
332 var p1 = dlTrafo.invtransform(pt1);
|
|
333 var p2 = dlTrafo.invtransform(pt2);
|
|
334 var ww = p2.x-p1.x;
|
|
335 var wh = p2.y-p1.y;
|
|
336 if ((ww > 0)&&(wh > 0)) {
|
|
337 setParameter("wx", cropFloat(p1.x));
|
|
338 setParameter("wy", cropFloat(p1.y));
|
|
339 setParameter("ww", cropFloat(ww));
|
|
340 setParameter("wh", cropFloat(wh));
|
|
341 parseArea();
|
|
342 // zoomed is always fit
|
|
343 setParameter("ws", 1);
|
|
344 display();
|
|
345 }
|
|
346 }
|
|
347 }
|
|
348
|
|
349 function zoomMove(evt) {
|
|
350 // mouse move handler
|
|
351 pt2 = evtPosition(evt);
|
|
352 // restrict marks to move right and down
|
|
353 eck1pos = pt1;
|
|
354 eck2pos = new Position(Math.max(pt1.x, pt2.x)-12, pt1.y);
|
|
355 eck3pos = new Position(pt1.x, Math.max(pt1.y, pt2.y)-12);
|
|
356 eck4pos = new Position(Math.max(pt1.x, pt2.x)-12, Math.max(pt1.y, pt2.y)-12);
|
|
357 moveElement(eck1, eck1pos);
|
|
358 moveElement(eck2, eck2pos);
|
|
359 moveElement(eck3, eck3pos);
|
|
360 moveElement(eck4, eck4pos);
|
|
361 }
|
|
362
|
|
363 // starting event capture
|
|
364 registerMouseDown(elemScaler, zoomClick);
|
|
365 registerMouseDown(eck4, zoomClick);
|
|
366 }
|
|
367
|
|
368 var ZOOMFACTOR = Math.sqrt(2);
|
|
369
|
|
370 function zoomBy(factor) {
|
|
371 // zooms by the given factor
|
|
372 var newarea = dlArea;
|
|
373 newarea.width /= factor;
|
|
374 newarea.height /= factor;
|
|
375 newarea.x -= 0.5 * (newarea.width - dlArea.width);
|
|
376 newarea.y -= 0.5 * (newarea.height - dlArea.height);
|
|
377 newarea = dlMaxArea.fit(newarea);
|
|
378 setParamFromArea(newarea);
|
|
379 display();
|
|
380 }
|
|
381
|
|
382
|
|
383 function zoomFullpage() {
|
|
384 // zooms out to show the whole image
|
|
385 setParameter("wx", 0.0);
|
|
386 setParameter("wy", 0.0);
|
|
387 setParameter("ww", 1.0);
|
|
388 setParameter("wh", 1.0);
|
|
389 display();
|
|
390 }
|
|
391
|
|
392
|
|
393 function moveCenter() {
|
|
394 // move visible area so that it's centered around the clicked point
|
|
395 if ( (dlArea.width == 1.0) && (dlArea.height == 1.0) ) {
|
|
396 // noting to do
|
|
397 return;
|
|
398 }
|
|
399 window.focus();
|
|
400
|
|
401 function moveCenterEvent(evt) {
|
|
402 // move to handler
|
|
403 unregisterMouseDown(elemScaler, moveCenterEvent);
|
|
404 var pt = dlTrafo.invtransform(evtPosition(evt));
|
|
405 var newarea = new Rectangle(pt.x-0.5*dlArea.width, pt.y-0.5*dlArea.height, dlArea.width, dlArea.height);
|
|
406 newarea = dlMaxArea.fit(newarea);
|
|
407 // set parameters
|
|
408 setParamFromArea(newarea);
|
|
409 parseArea();
|
|
410 display();
|
|
411 }
|
|
412
|
|
413 // starting event capture
|
|
414 registerMouseDown(elemScaler, moveCenterEvent);
|
|
415 }
|
|
416
|
|
417
|
|
418 function removeMark() {
|
|
419 // remove the last mark
|
|
420 deleteMark();
|
|
421 renderMarks();
|
|
422 }
|
|
423
|
|
424
|
|
425 function getRef(select) {
|
|
426 // returns a reference to the current digilib set
|
|
427 if (! baseUrl) {
|
|
428 var baseUrl = location.protocol + "//" + location.host + location.pathname;
|
|
429 }
|
|
430 var hyperlinkRef = baseUrl;
|
|
431 var par = getAllParameters(9);
|
|
432 if (par.length > 0) {
|
|
433 hyperlinkRef += "?" + par;
|
|
434 }
|
|
435 return hyperlinkRef;
|
|
436 }
|