summaryrefslogtreecommitdiff
path: root/src/irrlicht_changes/static_text.cpp
blob: 5a0f82673401fa56047950d595dccbf771bec300 (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
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
// Copyright (C) 2002-2012 Nikolaus Gebhardt
// Copyright (C) 2016 Nathanaël Courant:
//   Modified the functions to use EnrichedText instead of string.
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#include "static_text.h"
#ifdef _IRR_COMPILE_WITH_GUI_

#include <IGUIFont.h>
#include <IVideoDriver.h>
#include <rect.h>
#include <SColor.h>

#if USE_FREETYPE
	#include "CGUITTFont.h"
#endif

#include "util/string.h"

namespace irr
{

#if USE_FREETYPE

namespace gui
{
//! constructor
StaticText::StaticText(const EnrichedString &text, bool border,
			IGUIEnvironment* environment, IGUIElement* parent,
			s32 id, const core::rect<s32>& rectangle,
			bool background)
: IGUIStaticText(environment, parent, id, rectangle),
	HAlign(EGUIA_UPPERLEFT), VAlign(EGUIA_UPPERLEFT),
	Border(border), OverrideColorEnabled(false), OverrideBGColorEnabled(false), WordWrap(false), Background(background),
	RestrainTextInside(true), RightToLeft(false),
	OverrideColor(video::SColor(101,255,255,255)), BGColor(video::SColor(101,210,210,210)),
	OverrideFont(0), LastBreakFont(0)
{
	#ifdef _DEBUG
	setDebugName("StaticText");
	#endif

	Text = text.c_str();
	cText = text;
	if (environment && environment->getSkin())
	{
		BGColor = environment->getSkin()->getColor(gui::EGDC_3D_FACE);
	}
}


//! destructor
StaticText::~StaticText()
{
	if (OverrideFont)
		OverrideFont->drop();
}

//! draws the element and its children
void StaticText::draw()
{
	if (!IsVisible)
		return;

	IGUISkin* skin = Environment->getSkin();
	if (!skin)
		return;
	video::IVideoDriver* driver = Environment->getVideoDriver();

	core::rect<s32> frameRect(AbsoluteRect);

	// draw background

	if (Background)
	{
		if ( !OverrideBGColorEnabled )	// skin-colors can change
			BGColor = skin->getColor(gui::EGDC_3D_FACE);

		driver->draw2DRectangle(BGColor, frameRect, &AbsoluteClippingRect);
	}

	// draw the border

	if (Border)
	{
		skin->draw3DSunkenPane(this, 0, true, false, frameRect, &AbsoluteClippingRect);
		frameRect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X);
	}

	// draw the text
	if (cText.size())
	{
		IGUIFont* font = getActiveFont();

		if (font)
		{
			if (!WordWrap)
			{
				// TODO: add colors here
				if (VAlign == EGUIA_LOWERRIGHT)
				{
					frameRect.UpperLeftCorner.Y = frameRect.LowerRightCorner.Y -
						font->getDimension(L"A").Height - font->getKerningHeight();
				}
				if (HAlign == EGUIA_LOWERRIGHT)
				{
					frameRect.UpperLeftCorner.X = frameRect.LowerRightCorner.X -
						font->getDimension(cText.c_str()).Width;
				}

#if USE_FREETYPE
				if (font->getType() == irr::gui::EGFT_CUSTOM) {
					irr::gui::CGUITTFont *tmp = static_cast<irr::gui::CGUITTFont*>(font);
					tmp->draw(cText, frameRect,
						OverrideColorEnabled ? OverrideColor :
							skin->getColor(isEnabled() ? EGDC_BUTTON_TEXT : EGDC_GRAY_TEXT),
						HAlign == EGUIA_CENTER, VAlign == EGUIA_CENTER,
						(RestrainTextInside ? &AbsoluteClippingRect : NULL));
				} else
#endif
				{
					font->draw(Text.c_str(), frameRect,
						skin->getColor(EGDC_BUTTON_TEXT),
						HAlign == EGUIA_CENTER, VAlign == EGUIA_CENTER,
						(RestrainTextInside ? &AbsoluteClippingRect : NULL));
				}
			}
			else
			{
				if (font != LastBreakFont)
					breakText();

				core::rect<s32> r = frameRect;
				s32 height = font->getDimension(L"A").Height + font->getKerningHeight();
				s32 totalHeight = height * BrokenText.size();
				if (VAlign == EGUIA_CENTER)
				{
					r.UpperLeftCorner.Y = r.getCenter().Y - (totalHeight / 2);
				}
				else if (VAlign == EGUIA_LOWERRIGHT)
				{
					r.UpperLeftCorner.Y = r.LowerRightCorner.Y - totalHeight;
				}

				irr::video::SColor previous_color(255, 255, 255, 255);
				for (u32 i=0; i<BrokenText.size(); ++i)
				{
					if (HAlign == EGUIA_LOWERRIGHT)
					{
						r.UpperLeftCorner.X = frameRect.LowerRightCorner.X -
							font->getDimension(BrokenText[i].c_str()).Width;
					}

					EnrichedString str = BrokenText[i];

					//str = colorizeText(BrokenText[i].c_str(), colors, previous_color);
					//if (!colors.empty())
					//	previous_color = colors[colors.size() - 1];

#if USE_FREETYPE
					if (font->getType() == irr::gui::EGFT_CUSTOM) {
						irr::gui::CGUITTFont *tmp = static_cast<irr::gui::CGUITTFont*>(font);
						tmp->draw(str,
							r, previous_color, // FIXME
							HAlign == EGUIA_CENTER, false,
							(RestrainTextInside ? &AbsoluteClippingRect : NULL));
					} else
#endif
					{
						// Draw non-colored text
						font->draw(str.c_str(),
							r, skin->getColor(EGDC_BUTTON_TEXT),
							HAlign == EGUIA_CENTER, false,
							(RestrainTextInside ? &AbsoluteClippingRect : NULL));
					}


					r.LowerRightCorner.Y += height;
					r.UpperLeftCorner.Y += height;
				}
			}
		}
	}

	IGUIElement::draw();
}


//! Sets another skin independent font.
void StaticText::setOverrideFont(IGUIFont* font)
{
	if (OverrideFont == font)
		return;

	if (OverrideFont)
		OverrideFont->drop();

	OverrideFont = font;

	if (OverrideFont)
		OverrideFont->grab();

	breakText();
}

//! Gets the override font (if any)
IGUIFont * StaticText::getOverrideFont() const
{
	return OverrideFont;
}

//! Get the font which is used right now for drawing
IGUIFont* StaticText::getActiveFont() const
{
	if ( OverrideFont )
		return OverrideFont;
	IGUISkin* skin = Environment->getSkin();
	if (skin)
		return skin->getFont();
	return 0;
}

//! Sets another color for the text.
void StaticText::setOverrideColor(video::SColor color)
{
	OverrideColor = color;
	OverrideColorEnabled = true;
}


//! Sets another color for the text.
void StaticText::setBackgroundColor(video::SColor color)
{
	BGColor = color;
	OverrideBGColorEnabled = true;
	Background = true;
}


//! Sets whether to draw the background
void StaticText::setDrawBackground(bool draw)
{
	Background = draw;
}


//! Gets the background color
video::SColor StaticText::getBackgroundColor() const
{
	return BGColor;
}


//! Checks if background drawing is enabled
bool StaticText::isDrawBackgroundEnabled() const
{
	return Background;
}


//! Sets whether to draw the border
void StaticText::setDrawBorder(bool draw)
{
	Border = draw;
}


//! Checks if border drawing is enabled
bool StaticText::isDrawBorderEnabled() const
{
	return Border;
}


void StaticText::setTextRestrainedInside(bool restrainTextInside)
{
	RestrainTextInside = restrainTextInside;
}


bool StaticText::isTextRestrainedInside() const
{
	return RestrainTextInside;
}


void StaticText::setTextAlignment(EGUI_ALIGNMENT horizontal, EGUI_ALIGNMENT vertical)
{
	HAlign = horizontal;
	VAlign = vertical;
}


#if IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR <= 7
const video::SColor& StaticText::getOverrideColor() const
#else
video::SColor StaticText::getOverrideColor() const
#endif
{
	return OverrideColor;
}


//! Sets if the static text should use the overide color or the
//! color in the gui skin.
void StaticText::enableOverrideColor(bool enable)
{
	OverrideColorEnabled = enable;
}


bool StaticText::isOverrideColorEnabled() const
{
	return OverrideColorEnabled;
}


//! Enables or disables word wrap for using the static text as
//! multiline text control.
void StaticText::setWordWrap(bool enable)
{
	WordWrap = enable;
	breakText();
}


bool StaticText::isWordWrapEnabled() const
{
	return WordWrap;
}


void StaticText::setRightToLeft(bool rtl)
{
	if (RightToLeft != rtl)
	{
		RightToLeft = rtl;
		breakText();
	}
}


bool StaticText::isRightToLeft() const
{
	return RightToLeft;
}


//! Breaks the single text line.
void StaticText::breakText()
{
	if (!WordWrap)
		return;

	BrokenText.clear();

	IGUISkin* skin = Environment->getSkin();
	IGUIFont* font = getActiveFont();
	if (!font)
		return;

	LastBreakFont = font;

	EnrichedString line;
	EnrichedString word;
	EnrichedString whitespace;
	s32 size = cText.size();
	s32 length = 0;
	s32 elWidth = RelativeRect.getWidth();
	if (Border)
		elWidth -= 2*skin->getSize(EGDS_TEXT_DISTANCE_X);
	wchar_t c;

	//std::vector<irr::video::SColor> colors;

	// We have to deal with right-to-left and left-to-right differently
	// However, most parts of the following code is the same, it's just
	// some order and boundaries which change.
	if (!RightToLeft)
	{
		// regular (left-to-right)
		for (s32 i=0; i<size; ++i)
		{
			c = cText.getString()[i];
			bool lineBreak = false;

			if (c == L'\r') // Mac or Windows breaks
			{
				lineBreak = true;
				//if (Text[i+1] == L'\n') // Windows breaks
				//{
				//	Text.erase(i+1);
				//	--size;
				//}
				c = '\0';
			}
			else if (c == L'\n') // Unix breaks
			{
				lineBreak = true;
				c = '\0';
			}

			bool isWhitespace = (c == L' ' || c == 0);
			if ( !isWhitespace )
			{
				// part of a word
				//word += c;
				word.addChar(cText, i);
			}

			if ( isWhitespace || i == (size-1))
			{
				if (word.size())
				{
					// here comes the next whitespace, look if
					// we must break the last word to the next line.
					const s32 whitelgth = font->getDimension(whitespace.c_str()).Width;
					//const std::wstring sanitized = removeEscapes(word.c_str());
					const s32 wordlgth = font->getDimension(word.c_str()).Width;

					if (wordlgth > elWidth)
					{
						// This word is too long to fit in the available space, look for
						// the Unicode Soft HYphen (SHY / 00AD) character for a place to
						// break the word at
						int where = core::stringw(word.c_str()).findFirst( wchar_t(0x00AD) );
						if (where != -1)
						{
							EnrichedString first = word.substr(0, where);
							EnrichedString second = word.substr(where, word.size() - where);
							first.addCharNoColor(L'-');
							BrokenText.push_back(line + first);
							const s32 secondLength = font->getDimension(second.c_str()).Width;

							length = secondLength;
							line = second;
						}
						else
						{
							// No soft hyphen found, so there's nothing more we can do
							// break to next line
							if (length)
								BrokenText.push_back(line);
							length = wordlgth;
							line = word;
						}
					}
					else if (length && (length + wordlgth + whitelgth > elWidth))
					{
						// break to next line
						BrokenText.push_back(line);
						length = wordlgth;
						line = word;
					}
					else
					{
						// add word to line
						line += whitespace;
						line += word;
						length += whitelgth + wordlgth;
					}

					word.clear();
					whitespace.clear();
				}

				if ( isWhitespace && c != 0)
				{
					whitespace.addChar(cText, i);
				}

				// compute line break
				if (lineBreak)
				{
					line += whitespace;
					line += word;
					BrokenText.push_back(line);
					line.clear();
					word.clear();
					whitespace.clear();
					length = 0;
				}
			}
		}

		line += whitespace;
		line += word;
		BrokenText.push_back(line);
	}
	else
	{
		// right-to-left
		for (s32 i=size; i>=0; --i)
		{
			c = cText.getString()[i];
			bool lineBreak = false;

			if (c == L'\r') // Mac or Windows breaks
			{
				lineBreak = true;
				//if ((i>0) && Text[i-1] == L'\n') // Windows breaks
				//{
				//	Text.erase(i-1);
				//	--size;
				//}
				c = '\0';
			}
			else if (c == L'\n') // Unix breaks
			{
				lineBreak = true;
				c = '\0';
			}

			if (c==L' ' || c==0 || i==0)
			{
				if (word.size())
				{
					// here comes the next whitespace, look if
					// we must break the last word to the next line.
					const s32 whitelgth = font->getDimension(whitespace.c_str()).Width;
					const s32 wordlgth = font->getDimension(word.c_str()).Width;

					if (length && (length + wordlgth + whitelgth > elWidth))
					{
						// break to next line
						BrokenText.push_back(line);
						length = wordlgth;
						line = word;
					}
					else
					{
						// add word to line
						line = whitespace + line;
						line = word + line;
						length += whitelgth + wordlgth;
					}

					word.clear();
					whitespace.clear();
				}

				if (c != 0)
				//	whitespace = core::stringw(&c, 1) + whitespace;
				whitespace = cText.substr(i, 1) + whitespace;

				// compute line break
				if (lineBreak)
				{
					line = whitespace + line;
					line = word + line;
					BrokenText.push_back(line);
					line.clear();
					word.clear();
					whitespace.clear();
					length = 0;
				}
			}
			else
			{
				// yippee this is a word..
				//word = core::stringw(&c, 1) + word;
				word = cText.substr(i, 1) + word;
			}
		}

		line = whitespace + line;
		line = word + line;
		BrokenText.push_back(line);
	}
}


//! Sets the new caption of this element.
void StaticText::setText(const wchar_t* text)
{
	setText(EnrichedString(text));
}

//! Sets the new caption of this element.
void StaticText::setText(const EnrichedString &text)
{
	IGUIElement::setText(text.c_str());
	cText = text;
	if (text.hasBackground()) {
		setBackgroundColor(text.getBackground());
	}
	breakText();
}


void StaticText::updateAbsolutePosition()
{
	IGUIElement::updateAbsolutePosition();
	breakText();
}


//! Returns the height of the text in pixels when it is drawn.
s32 StaticText::getTextHeight() const
{
	IGUIFont* font = getActiveFont();
	if (!font)
		return 0;

	s32 height = font->getDimension(L"A").Height + font->getKerningHeight();

	if (WordWrap)
		height *= BrokenText.size();

	return height;
}


s32 StaticText::getTextWidth() const
{
	IGUIFont * font = getActiveFont();
	if(!font)
		return 0;

	if(WordWrap)
	{
		s32 widest = 0;

		for(u32 line = 0; line < BrokenText.size(); ++line)
		{
			s32 width = font->getDimension(BrokenText[line].c_str()).Width;

			if(width > widest)
				widest = width;
		}

		return widest;
	}
	else
	{
		return font->getDimension(cText.c_str()).Width;
	}
}


//! Writes attributes of the element.
//! Implement this to expose the attributes of your element for
//! scripting languages, editors, debuggers or xml serialization purposes.
void StaticText::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
{
	IGUIStaticText::serializeAttributes(out,options);

	out->addBool	("Border",              Border);
	out->addBool	("OverrideColorEnabled",OverrideColorEnabled);
	out->addBool	("OverrideBGColorEnabled",OverrideBGColorEnabled);
	out->addBool	("WordWrap",		WordWrap);
	out->addBool	("Background",          Background);
	out->addBool	("RightToLeft",         RightToLeft);
	out->addBool	("RestrainTextInside",  RestrainTextInside);
	out->addColor	("OverrideColor",       OverrideColor);
	out->addColor	("BGColor",       	BGColor);
	out->addEnum	("HTextAlign",          HAlign, GUIAlignmentNames);
	out->addEnum	("VTextAlign",          VAlign, GUIAlignmentNames);

	// out->addFont ("OverrideFont",	OverrideFont);
}


//! Reads attributes of the element
void StaticText::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
{
	IGUIStaticText::deserializeAttributes(in,options);

	Border = in->getAttributeAsBool("Border");
	enableOverrideColor(in->getAttributeAsBool("OverrideColorEnabled"));
	OverrideBGColorEnabled = in->getAttributeAsBool("OverrideBGColorEnabled");
	setWordWrap(in->getAttributeAsBool("WordWrap"));
	Background = in->getAttributeAsBool("Background");
	RightToLeft = in->getAttributeAsBool("RightToLeft");
	RestrainTextInside = in->getAttributeAsBool("RestrainTextInside");
	OverrideColor = in->getAttributeAsColor("OverrideColor");
	BGColor = in->getAttributeAsColor("BGColor");

	setTextAlignment( (EGUI_ALIGNMENT) in->getAttributeAsEnumeration("HTextAlign", GUIAlignmentNames),
                      (EGUI_ALIGNMENT) in->getAttributeAsEnumeration("VTextAlign", GUIAlignmentNames));

	// OverrideFont = in->getAttributeAsFont("OverrideFont");
}

} // end namespace gui

#endif // USE_FREETYPE

} // end namespace irr


#endif // _IRR_COMPILE_WITH_GUI_