summaryrefslogtreecommitdiff
path: root/chart2/source/view/main/LabelPositionHelper.cxx
blob: 432af9b81c6e3bf87736f48eec555788be037f8d (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
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <LabelPositionHelper.hxx>
#include <PlottingPositionHelper.hxx>
#include <CommonConverters.hxx>
#include <PropertyMapper.hxx>
#include <ShapeFactory.hxx>
#include <RelativeSizeHelper.hxx>
#include <com/sun/star/drawing/TextVerticalAdjust.hpp>
#include <com/sun/star/drawing/TextHorizontalAdjust.hpp>
#include <com/sun/star/drawing/XShape.hpp>

namespace chart
{
using namespace ::com::sun::star;
using namespace ::com::sun::star::chart2;

LabelPositionHelper::LabelPositionHelper(
                      sal_Int32 nDimensionCount
                    , const uno::Reference< drawing::XShapes >& xLogicTarget
                    , ShapeFactory* pShapeFactory )
                    : m_nDimensionCount(nDimensionCount)
                    , m_xLogicTarget(xLogicTarget)
                    , m_pShapeFactory(pShapeFactory)
{
}

LabelPositionHelper::~LabelPositionHelper()
{
}

awt::Point LabelPositionHelper::transformSceneToScreenPosition( const drawing::Position3D& rScenePosition3D ) const
{
    return PlottingPositionHelper::transformSceneToScreenPosition(
                  rScenePosition3D, m_xLogicTarget, m_pShapeFactory, m_nDimensionCount );
}

void LabelPositionHelper::changeTextAdjustment( tAnySequence& rPropValues, const tNameSequence& rPropNames, LabelAlignment eAlignment)
{
    //HorizontalAdjustment
    {
        drawing::TextHorizontalAdjust eHorizontalAdjust = drawing::TextHorizontalAdjust_CENTER;
        if( eAlignment==LABEL_ALIGN_RIGHT || eAlignment==LABEL_ALIGN_RIGHT_TOP || eAlignment==LABEL_ALIGN_RIGHT_BOTTOM )
            eHorizontalAdjust = drawing::TextHorizontalAdjust_LEFT;
        else if( eAlignment==LABEL_ALIGN_LEFT || eAlignment==LABEL_ALIGN_LEFT_TOP || eAlignment==LABEL_ALIGN_LEFT_BOTTOM )
            eHorizontalAdjust = drawing::TextHorizontalAdjust_RIGHT;
        uno::Any* pHorizontalAdjustAny = PropertyMapper::getValuePointer(rPropValues,rPropNames,"TextHorizontalAdjust");
        if(pHorizontalAdjustAny)
            *pHorizontalAdjustAny <<= eHorizontalAdjust;
    }

    //VerticalAdjustment
    {
        drawing::TextVerticalAdjust eVerticalAdjust = drawing::TextVerticalAdjust_CENTER;
        if( eAlignment==LABEL_ALIGN_TOP || eAlignment==LABEL_ALIGN_RIGHT_TOP || eAlignment==LABEL_ALIGN_LEFT_TOP )
            eVerticalAdjust = drawing::TextVerticalAdjust_BOTTOM;
        else if( eAlignment==LABEL_ALIGN_BOTTOM || eAlignment==LABEL_ALIGN_RIGHT_BOTTOM || eAlignment==LABEL_ALIGN_LEFT_BOTTOM )
            eVerticalAdjust = drawing::TextVerticalAdjust_TOP;
        uno::Any* pVerticalAdjustAny = PropertyMapper::getValuePointer(rPropValues,rPropNames,"TextVerticalAdjust");
        if(pVerticalAdjustAny)
            *pVerticalAdjustAny <<= eVerticalAdjust;
    }
}

void lcl_doDynamicFontResize( uno::Any* pAOldAndNewFontHeightAny
                          , const awt::Size& rOldReferenceSize
                          , const awt::Size& rNewReferenceSize  )
{
    double fOldFontHeight = 0;
    if( pAOldAndNewFontHeightAny && ( *pAOldAndNewFontHeightAny >>= fOldFontHeight ) )
    {
        double fNewFontHeight = RelativeSizeHelper::calculate( fOldFontHeight, rOldReferenceSize, rNewReferenceSize );
        *pAOldAndNewFontHeightAny <<= fNewFontHeight;
    }
}

void LabelPositionHelper::doDynamicFontResize( tAnySequence& rPropValues
                    , const tNameSequence& rPropNames
                    , const uno::Reference< beans::XPropertySet >& xAxisModelProps
                    , const awt::Size& rNewReferenceSize
                    )
{
    //handle dynamic font resize:
    awt::Size aOldReferenceSize;
    if( xAxisModelProps->getPropertyValue( "ReferencePageSize") >>= aOldReferenceSize )
    {
        uno::Any* pAOldAndNewFontHeightAny = PropertyMapper::getValuePointer( rPropValues, rPropNames, "CharHeight" );
        lcl_doDynamicFontResize( pAOldAndNewFontHeightAny, aOldReferenceSize, rNewReferenceSize );
        pAOldAndNewFontHeightAny = PropertyMapper::getValuePointer( rPropValues, rPropNames, "CharHeightAsian" );
        lcl_doDynamicFontResize( pAOldAndNewFontHeightAny, aOldReferenceSize, rNewReferenceSize );
        pAOldAndNewFontHeightAny = PropertyMapper::getValuePointer( rPropValues, rPropNames, "CharHeightComplex" );
        lcl_doDynamicFontResize( pAOldAndNewFontHeightAny, aOldReferenceSize, rNewReferenceSize );
    }
}

namespace
{

void lcl_correctRotation_Left( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize, bool bRotateAroundCenter )
{
    //correct label positions for labels on a left side of something with a right centered alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree==0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfXCorrection = -aSize.Height*rtl::math::sin( fAnglePi )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = -aSize.Width*rtl::math::sin( fAnglePi )/2.0;
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi-F_PI2;
        rfXCorrection = -aSize.Width *rtl::math::sin( beta )
            -aSize.Height *rtl::math::cos( beta )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = -aSize.Width *rtl::math::cos( beta )/2.0;
        else
            rfYCorrection = -aSize.Width *rtl::math::cos( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = fAnglePi - F_PI;
        rfXCorrection = -aSize.Width *rtl::math::cos( beta )
            -aSize.Height*rtl::math::sin( beta )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = aSize.Width *rtl::math::sin( beta )/2.0;
        else
            rfYCorrection = aSize.Width *rtl::math::sin( beta );
    }
    else
    {
        double beta = 2*F_PI - fAnglePi;
        rfXCorrection = -aSize.Height*rtl::math::sin( beta )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = aSize.Width*rtl::math::sin( beta )/2.0;
    }
}

void lcl_correctRotation_Right( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize, bool bRotateAroundCenter )
{
    //correct label positions for labels on a right side of something with a left centered alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree== 0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfXCorrection = aSize.Height*rtl::math::sin( fAnglePi )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = aSize.Width*rtl::math::sin( fAnglePi )/2.0;
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = F_PI - fAnglePi;
        rfXCorrection = aSize.Width *rtl::math::cos( beta )
            + aSize.Height*rtl::math::sin( beta )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = aSize.Width *rtl::math::sin( beta )/2.0;
        else
            rfYCorrection = aSize.Width *rtl::math::sin( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = 3*F_PI2 - fAnglePi;
        rfXCorrection = aSize.Width *rtl::math::sin( beta )
                    +aSize.Height*rtl::math::cos( beta )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = -aSize.Width *rtl::math::cos( beta )/2.0;
        else
            rfYCorrection = -aSize.Width *rtl::math::cos( beta );
    }
    else
    {
        rfXCorrection  = aSize.Height*rtl::math::sin( 2*F_PI - fAnglePi )/2.0;
        if( bRotateAroundCenter )
            rfYCorrection = -aSize.Width*rtl::math::sin( 2*F_PI - fAnglePi )/2.0;
    }
}

void lcl_correctRotation_Top( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize, bool bRotateAroundCenter )
{
    //correct label positions for labels on top of something with a bottom centered alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree== 0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfXCorrection = aSize.Height*rtl::math::sin( fAnglePi )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection += aSize.Width*rtl::math::cos( fAnglePi )/2.0;
        rfYCorrection = -aSize.Width*rtl::math::sin( fAnglePi )/2.0;
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi - F_PI2;
        rfXCorrection = aSize.Height*rtl::math::cos( beta )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection -= aSize.Width*rtl::math::sin( beta )/2.0;
        rfYCorrection = -aSize.Width*rtl::math::cos( beta )/2.0
            - aSize.Height*rtl::math::sin( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = fAnglePi - F_PI;
        rfXCorrection = -aSize.Height *rtl::math::sin( beta )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection += aSize.Width *rtl::math::cos( beta )/2.0;
        rfYCorrection = -aSize.Width *rtl::math::sin( beta )/2.0
            -aSize.Height *rtl::math::cos( beta );
    }
    else
    {
        rfXCorrection = aSize.Height*rtl::math::sin( fAnglePi )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection -= aSize.Width*rtl::math::cos( fAnglePi )/2.0;
        rfYCorrection = aSize.Width*rtl::math::sin( fAnglePi )/2.0;
    }
}

void lcl_correctRotation_Bottom( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize, bool bRotateAroundCenter )
{
    //correct label positions for labels below something with a top centered alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree==0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfXCorrection = -aSize.Height*rtl::math::sin( fAnglePi )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection -= aSize.Width *rtl::math::cos( fAnglePi )/2.0;
        rfYCorrection = aSize.Width*rtl::math::sin( fAnglePi )/2.0;
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi-F_PI2;
        rfXCorrection = -aSize.Height*rtl::math::cos( beta )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection += aSize.Width *rtl::math::sin( beta )/2.0;
        rfYCorrection = aSize.Width *rtl::math::cos( beta )/2.0
            +aSize.Height*rtl::math::sin( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = 3*F_PI2 - fAnglePi;
        rfXCorrection = aSize.Height*rtl::math::cos( beta )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection -= aSize.Width *rtl::math::sin( beta )/2.0;
        rfYCorrection = aSize.Height*rtl::math::sin( beta )
                        +aSize.Width*rtl::math::cos( beta )/2.0;
    }
    else
    {
        double beta = 2*F_PI - fAnglePi;
        rfXCorrection = aSize.Height*rtl::math::sin( beta )/2.0;
        if( !bRotateAroundCenter )
            rfXCorrection += aSize.Width*rtl::math::cos( beta )/2.0;
        rfYCorrection = aSize.Width*rtl::math::sin( beta )/2.0;
    }
}

void lcl_correctRotation_Left_Top( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize )
{
    //correct position for labels at the left top corner of something with a bottom right alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree==0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfYCorrection = -aSize.Width*rtl::math::sin( fAnglePi );
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi-F_PI2;
        rfXCorrection = -aSize.Width*rtl::math::sin( beta );
        rfYCorrection = -aSize.Height*rtl::math::sin( beta )
                        -aSize.Width*rtl::math::cos( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = 3*F_PI2 - fAnglePi;
        rfXCorrection = -aSize.Height*rtl::math::cos( beta )
                        -aSize.Width*rtl::math::sin( beta );
        rfYCorrection = -aSize.Height*rtl::math::sin( beta );
    }
    else
    {
        rfXCorrection = aSize.Height*rtl::math::sin( fAnglePi );
    }
}

void lcl_correctRotation_Left_Bottom( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize )
{
    //correct position for labels at the left bottom corner of something with a top right alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree==0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfXCorrection = -aSize.Height*rtl::math::sin( fAnglePi );
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi-F_PI2;
        rfXCorrection = -aSize.Width*rtl::math::sin( beta )
                        -aSize.Height*rtl::math::cos( beta );
        rfYCorrection = aSize.Height*rtl::math::sin( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = 3*F_PI2 - fAnglePi;
        rfXCorrection = -aSize.Width*rtl::math::sin( beta );
        rfYCorrection = aSize.Width*rtl::math::cos( beta )
                        +aSize.Height*rtl::math::sin( beta );
    }
    else
    {
        rfYCorrection = -aSize.Width*rtl::math::sin( fAnglePi );
    }
}

void lcl_correctRotation_Right_Top( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize )
{
    //correct position for labels at the right top corner of something with a bottom left alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree==0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfXCorrection = aSize.Height*rtl::math::sin( fAnglePi );
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi-F_PI2;
        rfXCorrection = aSize.Width*rtl::math::sin( beta )
                        +aSize.Height*rtl::math::cos( beta );
        rfYCorrection = -aSize.Height*rtl::math::sin( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = 3*F_PI2 - fAnglePi;
        rfXCorrection = aSize.Width*rtl::math::sin( beta );
        rfYCorrection = -aSize.Width*rtl::math::cos( beta )
                        -aSize.Height*rtl::math::sin( beta );
    }
    else
    {
        rfYCorrection = aSize.Width*rtl::math::sin( fAnglePi );
    }
}

void lcl_correctRotation_Right_Bottom( double& rfXCorrection, double& rfYCorrection
                           , double fAnglePositiveDegree, const awt::Size& aSize )
{
    //correct position for labels at the right bottom corner of something with a top left alignment
    double fAnglePi = basegfx::deg2rad(fAnglePositiveDegree);
    if( fAnglePositiveDegree==0.0 )
    {
    }
    else if( fAnglePositiveDegree<= 90.0 )
    {
        rfYCorrection = aSize.Width*rtl::math::sin( fAnglePi );
    }
    else if( fAnglePositiveDegree<= 180.0 )
    {
        double beta = fAnglePi-F_PI2;
        rfXCorrection = aSize.Width*rtl::math::sin( beta );
        rfYCorrection = aSize.Height*rtl::math::sin( beta )
                        +aSize.Width*rtl::math::cos( beta );
    }
    else if( fAnglePositiveDegree<= 270.0 )
    {
        double beta = 3*F_PI2 - fAnglePi;
        rfXCorrection = aSize.Height*rtl::math::cos( beta )
                        +aSize.Width*rtl::math::sin( beta );
        rfYCorrection = aSize.Height*rtl::math::sin( beta );
    }
    else
    {
        rfXCorrection = -aSize.Height*rtl::math::sin( fAnglePi );
    }
}

}//end anonymous namespace

void LabelPositionHelper::correctPositionForRotation( const uno::Reference< drawing::XShape >& xShape2DText
                     , LabelAlignment eLabelAlignment, const double fRotationAngle, bool bRotateAroundCenter )
{
    if( !xShape2DText.is() )
        return;

    awt::Point aOldPos = xShape2DText->getPosition();
    awt::Size  aSize   = xShape2DText->getSize();

    double fYCorrection = 0.0;
    double fXCorrection  = 0.0;

    double fAnglePositiveDegree = fRotationAngle;
    while(fAnglePositiveDegree<0.0)
        fAnglePositiveDegree+=360.0;

    switch(eLabelAlignment)
    {
        case LABEL_ALIGN_LEFT:
            lcl_correctRotation_Left( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize, bRotateAroundCenter );
            break;
        case LABEL_ALIGN_RIGHT:
            lcl_correctRotation_Right( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize, bRotateAroundCenter );
            break;
        case LABEL_ALIGN_TOP:
            lcl_correctRotation_Top( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize, bRotateAroundCenter );
            break;
        case LABEL_ALIGN_BOTTOM:
            lcl_correctRotation_Bottom( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize, bRotateAroundCenter );
            break;
        case LABEL_ALIGN_LEFT_TOP:
            lcl_correctRotation_Left_Top( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize );
            break;
        case LABEL_ALIGN_LEFT_BOTTOM:
            lcl_correctRotation_Left_Bottom( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize );
            break;
        case LABEL_ALIGN_RIGHT_TOP:
            lcl_correctRotation_Right_Top( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize );
            break;
        case LABEL_ALIGN_RIGHT_BOTTOM:
            lcl_correctRotation_Right_Bottom( fXCorrection, fYCorrection, fAnglePositiveDegree, aSize );
            break;
        default: //LABEL_ALIGN_CENTER
            break;
    }

    xShape2DText->setPosition( awt::Point(
          static_cast<sal_Int32>(aOldPos.X + fXCorrection  )
        , static_cast<sal_Int32>(aOldPos.Y + fYCorrection ) ) );
}

} //namespace chart

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */