summaryrefslogtreecommitdiffstats
path: root/kviewshell/pageSize.cpp
blob: 9e59da04942ddb6c510b224c1dab271eb4cbc2ea (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
// pageSize.cpp
//
// Part of KVIEWSHELL - A framework for multipage text/gfx viewers
//
// (C) 2002-2003 Stefan Kebekus
// Distributed under the GPL

// Add header files alphabetically

#include <config.h>

#include <kdebug.h>
#include <kglobal.h>
#include <klocale.h>
#include <math.h>
#include <tqstringlist.h>

#include "pageSize.h"
#include "units.h"

struct pageSizeItem 
{
  const char *name;
  float width;         // in mm
  float height;        // in mm
  const char *preferredUnit;
};

#define defaultMetricPaperSize 4 // Default paper size is "DIN A4"
#define defaultImperialPaperSize 8 // Default paper size is "US Letter"

static pageSizeItem staticList[] = { {"DIN A0",    841.0, 1189.0, "mm"}, 
				     {"DIN A1",    594.0, 841.0, "mm"}, 
				     {"DIN A2",    420.0, 594.0, "mm"}, 
				     {"DIN A3",    297.0, 420.0, "mm"}, 
				     {"DIN A4",    210.0, 297.0, "mm"},
				     {"DIN A5",    148.5, 210.0, "mm"}, 
				     {"DIN B4",    250.0, 353.0, "mm"}, 
				     {"DIN B5",    176.0, 250.0, "mm"},
				     {"US Letter", 215.9, 279.4, "in"}, 
				     {"US Legal",  215.9, 355.6, "in"},
				     {0,  0.0, 0.0, 0} // marks the end of the list.
};


pageSize::pageSize()
{
  currentSize = defaultPageSize();
  pageWidth.setLength_in_mm(staticList[currentSize].width);
  pageHeight.setLength_in_mm(staticList[currentSize].height);
}


pageSize::pageSize(const SimplePageSize& s)
{
  pageWidth = s.width();
  pageHeight = s.height();
  
  rectifySizes();
  reconstructCurrentSize();
}


bool pageSize::setPageSize(const TQString& name)
{
  // See if we can recognize the string
  TQString currentName;
  for(int i=0; staticList[i].name != 0; i++) {
    currentName = staticList[i].name;
    if (currentName == name) {
      currentSize = i;  
      // Set page width/height accordingly
      pageWidth.setLength_in_mm(staticList[currentSize].width);
      pageHeight.setLength_in_mm(staticList[currentSize].height);
      emit(sizeChanged(*this));
      return true;
    }
  }

  // Check if the string contains 'x'. If yes, we assume it is of type
  // "<number>x<number>". If yes, the first number is interpreted as
  // the width in mm, the second as the height in mm
  if (name.find('x') >= 0) {
    bool wok, hok;
    float pageWidth_tmp  = name.section('x',0,0).toFloat(&wok);
    float pageHeight_tmp = name.section('x',1,1).toFloat(&hok);
    if (wok && hok) {
      pageWidth.setLength_in_mm(pageWidth_tmp);
      pageHeight.setLength_in_mm(pageHeight_tmp);
      
      rectifySizes();
      reconstructCurrentSize();
      emit(sizeChanged(*this));
      return true;
    }
  }
  
  // Check if the string contains ','. If yes, we assume it is of type
  // "<number><unit>,<number><uni>". The first number is supposed to
  // be the width, the second the height.
  if (name.find(',') >= 0) {
    bool wok, hok;
    float pageWidth_tmp  = distance::convertToMM(name.section(',',0,0), &wok);
    float pageHeight_tmp = distance::convertToMM(name.section(',',1,1), &hok);
    if (wok && hok) {
      pageWidth.setLength_in_mm(pageWidth_tmp);
      pageHeight.setLength_in_mm(pageHeight_tmp);
      
      rectifySizes();
      reconstructCurrentSize();
      emit(sizeChanged(*this));
      return true;
    } 
  }  
  
  // Last resource. Set the default, in case the string is
  // unintelligible to us.
  currentSize = defaultPageSize();
  pageWidth.setLength_in_mm(staticList[currentSize].width);
  pageHeight.setLength_in_mm(staticList[currentSize].height);
  kdError(1223) << "pageSize::setPageSize: could not parse '" << name << "'. Using " << staticList[currentSize].name << " as a default." << endl;
  emit(sizeChanged(*this));
  return false;
}


void pageSize::setPageSize(double width, double height)
{
  SimplePageSize oldPage = *this;

  pageWidth.setLength_in_mm(width);
  pageHeight.setLength_in_mm(height);
  
  rectifySizes();
  reconstructCurrentSize();
  if ( !isNearlyEqual(oldPage))
    emit(sizeChanged(*this));
}


void pageSize::setPageSize(const TQString& width, const TQString& _widthUnits, const TQString& height, const TQString& _heightUnits)
{
  SimplePageSize oldPage = *this;

  double w = width.toFloat();
  double h = height.toFloat();

  TQString widthUnits = _widthUnits;
  if ((widthUnits != "cm") && (widthUnits != "mm") && (widthUnits != "in")) {
    kdError(1223) << "Unrecognized page width unit '" << widthUnits << "'. Assuming mm" << endl;
    widthUnits = "mm";
  }
  pageWidth.setLength_in_mm(w);
  if (widthUnits == "cm")
    pageWidth.setLength_in_cm(w);
  if (widthUnits == "in")
    pageWidth.setLength_in_inch(w);
  
  TQString heightUnits = _heightUnits;
  if ((heightUnits != "cm") && (heightUnits != "mm") && (heightUnits != "in")) {
    kdError(1223) << "Unrecognized page height unit '" << widthUnits << "'. Assuming mm" << endl;
    heightUnits = "mm";
  }
  pageHeight.setLength_in_mm(h);
  if (heightUnits == "cm")
    pageHeight.setLength_in_cm(h);
  if (heightUnits == "in")
    pageHeight.setLength_in_inch(h);

  rectifySizes();
  reconstructCurrentSize();
  if ( !isNearlyEqual(oldPage))
    emit(sizeChanged(*this));
}


pageSize &pageSize::operator= (const pageSize &src)
{
  SimplePageSize oldPage = *this;

  currentSize = src.currentSize;
  pageWidth   = src.pageWidth;
  pageHeight  = src.pageHeight;

  if ( !isNearlyEqual(oldPage))
    emit(sizeChanged(*this));
  return *this;
}


void pageSize::rectifySizes()
{
  // Now do some sanity checks to make sure that values are not
  // outrageous. We allow values between 5cm and 50cm.
  if (pageWidth.getLength_in_mm() < 50)
    pageWidth.setLength_in_mm(50.0);
  if (pageWidth.getLength_in_mm() > 1200)
    pageWidth.setLength_in_mm(1200);
  if (pageHeight.getLength_in_mm() < 50)
    pageHeight.setLength_in_mm(50);
  if (pageHeight.getLength_in_mm() > 1200)
    pageHeight.setLength_in_mm(1200);
  return;
}


TQString pageSize::preferredUnit() const
{
  if (currentSize >= 0)
    return staticList[currentSize].preferredUnit;

  // User-defined size. Give a preferred unit depening on the locale.
  if (TDEGlobal::locale()-> measureSystem() == TDELocale::Metric)
    return "mm";
  else
    return "in";
}


TQString pageSize::widthString(const TQString& unit) const
{
  TQString answer = "--";

  if (unit == "cm")
    answer.setNum(pageWidth.getLength_in_cm());
  if (unit == "mm")
    answer.setNum(pageWidth.getLength_in_mm());
  if (unit == "in")
    answer.setNum(pageWidth.getLength_in_inch());

  return answer;
}


TQString pageSize::heightString(const TQString& unit) const
{
  TQString answer = "--";

  if (unit == "cm")
    answer.setNum(pageHeight.getLength_in_cm());
  if (unit == "mm")
    answer.setNum(pageHeight.getLength_in_mm());
  if (unit == "in")
    answer.setNum(pageHeight.getLength_in_inch());

  return answer;
}


TQStringList pageSize::pageSizeNames() 
{
  TQStringList names;
  
  for(int i=0; staticList[i].name != 0; i++) 
    names << staticList[i].name;

  return names;
}


TQString pageSize::formatName() const
{
  if (currentSize >= 0)
    return staticList[currentSize].name;
  else 
    return TQString();
}


int pageSize::getOrientation() const
{
  if (currentSize == -1) {
    kdError(1223) << "pageSize::getOrientation: getOrientation called for page format that does not have a name." << endl;
    return 0;
  }

  if (pageWidth.getLength_in_mm() == staticList[currentSize].width)
    return 0;
  else
    return 1;
}


void pageSize::setOrientation(int orient)
{
  if (currentSize == -1) {
    kdError(1223) << "pageSize::setOrientation: setOrientation called for page format that does not have a name." << endl;
    return;
  }
  
  if (orient == 1) {
    pageWidth.setLength_in_mm(staticList[currentSize].height);
    pageHeight.setLength_in_mm(staticList[currentSize].width);
  } else {
    pageWidth.setLength_in_mm(staticList[currentSize].width);
    pageHeight.setLength_in_mm(staticList[currentSize].height);
  }
  emit(sizeChanged(*this));
}


TQString pageSize::serialize() const
{
  if ((currentSize >= 0) && (fabs(staticList[currentSize].height-pageHeight.getLength_in_mm()) <= 0.5))
    return staticList[currentSize].name;
  else 
    return TQString("%1x%2").arg(pageWidth.getLength_in_mm()).arg(pageHeight.getLength_in_mm());
}


void pageSize::reconstructCurrentSize()
{
  for(int i=0; staticList[i].name != 0; i++) {
    if ((fabs(staticList[i].width - pageWidth.getLength_in_mm()) <= 2) && (fabs(staticList[i].height - pageHeight.getLength_in_mm()) <= 2)) {
      currentSize = i;
      pageWidth.setLength_in_mm(staticList[currentSize].width);
      pageHeight.setLength_in_mm(staticList[currentSize].height);
      return;
    }
    if ((fabs(staticList[i].height - pageWidth.getLength_in_mm()) <= 2) && (fabs(staticList[i].width - pageHeight.getLength_in_mm()) <= 2)) {
      currentSize = i;
      pageWidth.setLength_in_mm(staticList[currentSize].height);
      pageHeight.setLength_in_mm(staticList[currentSize].width);
      return;
    }
  }
  currentSize = -1;
  return;
}

int pageSize::defaultPageSize()
{
  // FIXME: static_cast<TQPrinter::PageSize>(TDEGlobal::locale()->pageSize())
  //        is the proper solution here.  Then you can determine the values
  //        without using your hardcoded table too!
  if (TDEGlobal::locale()-> measureSystem() == TDELocale::Metric)
    return defaultMetricPaperSize;
  else
    return defaultImperialPaperSize;
}

#include "pageSize.moc"