summaryrefslogtreecommitdiffstats
path: root/src/gvcore/filethumbnailviewitem.cpp
blob: 548c3b89638da6029154ca3f89cf67e46c14cf15 (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
// vim: set tabstop=4 shiftwidth=4 noexpandtab:
/*  Gwenview - A simple image viewer for TDE
    Copyright 2000-2004 Aurélien Gâteau
    This class is based on the TDEIconViewItem class from KDE libs.
    Original copyright follows.
*/
/* This file is part of the KDE libraries
   Copyright (C) 1999 Torben Weis <weis@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/
// TQt includes
#include <tqapplication.h>
#include <tqcolor.h>
#include <tqpainter.h>
#include <tqpen.h>
#include <tqpixmap.h>

// KDE includes
#include <kdebug.h>
#include <kwordwrap.h>
#include <kurldrag.h>

// Our includes
#include "archive.h"
#include "filethumbnailview.h"
#include "filethumbnailviewitem.h"
#include "fileviewconfig.h"
#include "timeutils.h"

namespace Gwenview {

const int SHOWN_ITEM_INDICATOR_SIZE = 8;

#if 0
static void printRect(const TQString& txt,const TQRect& rect) {
	kdWarning() << txt << " : " << rect.x() << "x" << rect.y() << " " << rect.width() << "x" << rect.height() << endl;
}
#endif


/**
 * An helper class to handle a caption line and help drawing it
 */
class FileThumbnailViewItem::Line {
protected:
	const TQIconViewItem* mItem;
	TQString mTxt;
	int mWidth;
public:
	Line(const TQIconViewItem* item, const TQString& txt)
	: mItem(item)
	, mTxt(txt)
	, mWidth(-1) {
	}
	virtual ~Line() {}

	virtual void setWidth(int width) {
		mWidth=width;
	}
	
	virtual int height() const=0;
	
	void paint(TQPainter* p, int textX, int textY, int align) const {
		Q_ASSERT(mWidth!=-1);
		int length=fontMetrics().width(mTxt);
		if (length<=mWidth ) {
			p->drawText(
				textX,
				textY,
				mWidth,
				fontMetrics().height(),
				align,
				mTxt);
		} else {
			p->save();
			complexPaint(p, textX, textY, align);
			p->restore();
		}
	};

protected:
	const FileThumbnailView* view() const {
		return static_cast<const FileThumbnailView*>(mItem->iconView());
	}

	TQFontMetrics fontMetrics() const {
		return view()->fontMetrics();
	}

	/**
	 * Called when the text won't fit the available space
	 */
	virtual void complexPaint(TQPainter* p, int textX, int textY, int align) const=0;
};


/**
 * A line which will get cropped if necessary
 */
class FileThumbnailViewItem::CroppedLine : public FileThumbnailViewItem::Line {
public:
	CroppedLine(const TQIconViewItem* item, const TQString& txt)
	: Line(item, txt) {}

	int height() const {
		return fontMetrics().height();
	}

	void complexPaint(TQPainter* p, int textX, int textY, int /*align*/) const {
		KWordWrap::drawFadeoutText(p,
			textX,
			textY + fontMetrics().ascent(),
			mWidth,
			mTxt);
	}
};

/**
 * A line which will get wrapped if necessary
 */

class FileThumbnailViewItem::WrappedLine : public FileThumbnailViewItem::Line {
	KWordWrap* mWordWrap;
public:
	WrappedLine(const TQIconViewItem* item, const TQString& txt)
	: Line(item, txt)
	, mWordWrap(0) {}

	~WrappedLine() {
		delete mWordWrap;
	}

	int height() const {
		Q_ASSERT(mWordWrap);
		if (!mWordWrap) return 0;
		return mWordWrap->boundingRect().height();
	}

	/**
	 * Regenerates mWordWrap if the width has changed
	 */
	void setWidth(int width) {
		if (width==mWidth) return;
		mWidth=width;
		delete mWordWrap;
		TQFontMetrics fm=fontMetrics();
		mWordWrap=KWordWrap::formatText(fm,
			TQRect(0, 0, mWidth, fm.height()*3),
			0 /*flags*/,
			mTxt);
	}

	void complexPaint(TQPainter* p, int textX, int textY, int align) const {
		Q_ASSERT(mWordWrap);
		if (!mWordWrap) return;

		int xpos=0;
		if (align & AlignHCenter) {
			xpos=( mWidth - mWordWrap->boundingRect().width() ) / 2;
		}
		
		mWordWrap->drawText(p, 
			textX + xpos,
			textY,
			align);
	}
};


FileThumbnailViewItem::FileThumbnailViewItem(TQIconView* view,const TQString& text,const TQPixmap& icon, KFileItem* fileItem)
: TQIconViewItem(view,text,icon), mFileItem(fileItem) {
	updateLines();
	calcRect();
}


FileThumbnailViewItem::~FileThumbnailViewItem() {
	TQValueVector<Line*>::ConstIterator it=mLines.begin();
	TQValueVector<Line*>::ConstIterator itEnd=mLines.end();
	for (;it!=itEnd; ++it) {
		delete *it;
	}
}


void FileThumbnailViewItem::updateLines() {
	TQValueVector<Line*>::ConstIterator it=mLines.begin();
	TQValueVector<Line*>::ConstIterator itEnd=mLines.end();
	for (;it!=itEnd; ++it) {
		delete *it;
	}
	mLines.clear();
	if (!mFileItem) return;

	bool isDir=mFileItem->isDir();
	if (iconView()->itemTextPos()==TQIconView::Right) {
		// Text is on the right, show everything

		time_t time = TimeUtils::getTime(mFileItem);
		mLines.append( new WrappedLine(this, mFileItem->name()) );
		mLines.append( new CroppedLine(this, TimeUtils::formatTime(time)) );
		if (mImageSize.isValid()) {
			TQString txt=TQString::number(mImageSize.width())+"x"+TQString::number(mImageSize.height());
			mLines.append( new CroppedLine(this, txt) );
		}
		if (!isDir) {
			mLines.append( new CroppedLine(this, TDEIO::convertSize(mFileItem->size())) );
		}

	} else {
		// Text is below the icon, only show details selected in
		// view->itemDetails()
		FileThumbnailView *view=static_cast<FileThumbnailView*>(iconView());
		int details=view->itemDetails();
		bool isImage=!Archive::fileItemIsDirOrArchive(mFileItem);
		
		if (!isImage || (details & FileThumbnailView::FILENAME)) {
			mLines.append( new WrappedLine(this, mFileItem->name()) );
		}
		if (details & FileThumbnailView::FILEDATE) {
			time_t time = TimeUtils::getTime(mFileItem);
			mLines.append( new CroppedLine(this, TimeUtils::formatTime(time)) );
		}
		if (details & FileThumbnailView::IMAGESIZE) {
			TQString txt;
			if (mImageSize.isValid()) {
				txt=TQString::number(mImageSize.width())+"x"+TQString::number(mImageSize.height());
			}
			mLines.append( new CroppedLine(this, txt) );
		}
		if (!isDir && (details & FileThumbnailView::FILESIZE)) {
			mLines.append( new CroppedLine(this, TDEIO::convertSize(mFileItem->size())) );
		}

	}

	calcRect();
}


void FileThumbnailViewItem::calcRect(const TQString&) {
	FileThumbnailView *view=static_cast<FileThumbnailView*>(iconView());
	bool isRight=view->itemTextPos()==TQIconView::Right;
	
	int textW=view->gridX();
	int thumbnailSize=FileViewConfig::thumbnailSize();
	if (isRight) {
		textW-=PADDING * 3 + thumbnailSize;
	} else {
		textW-=PADDING * 2;
	}
	
	int textH=0;
	TQValueVector<Line*>::ConstIterator it=mLines.begin();
	TQValueVector<Line*>::ConstIterator itEnd=mLines.end();
	for (;it!=itEnd; ++it) {
		(*it)->setWidth(textW);
		textH+=(*it)->height();
	}
	
	TQRect itemRect(x(), y(), view->gridX(), 0);
	TQRect itemPixmapRect(PADDING, PADDING, thumbnailSize, thumbnailSize);
	TQRect itemTextRect(0, 0, textW, textH);
	if (isRight) {
		itemRect.setHeight( TQMAX(thumbnailSize + PADDING*2, textH) );
		itemTextRect.moveLeft(thumbnailSize + PADDING * 2 );
		itemTextRect.moveTop((itemRect.height() - textH)/2);
	} else {
		itemPixmapRect.moveLeft( (itemRect.width() - itemPixmapRect.width()) / 2 );
		itemRect.setHeight(thumbnailSize + PADDING*3 + textH);
		itemTextRect.moveLeft(PADDING);
		itemTextRect.moveTop(thumbnailSize + PADDING * 2);
	}
	
	// Update rects
	if ( itemPixmapRect != pixmapRect() ) {
		setPixmapRect( itemPixmapRect );
	}
	if ( itemTextRect != textRect() ) {
		setTextRect( itemTextRect );
	}
	if ( itemRect != rect() ) {
		setItemRect( itemRect );
	}
}


void FileThumbnailViewItem::paintItem(TQPainter *p, const TQColorGroup &cg) {
	FileThumbnailView *view=static_cast<FileThumbnailView*>(iconView());
	Q_ASSERT(view);
	if (!view) return;

	bool isRight=view->itemTextPos()==TQIconView::Right;
	bool isShownItem=view->shownFileItem() && view->shownFileItem()->extraData(view)==this;
	bool isImage=!Archive::fileItemIsDirOrArchive(mFileItem);
	int textX, textY, textW, textH;
	int thumbnailSize=FileViewConfig::thumbnailSize();

	textX=textRect(false).x();
	textY=textRect(false).y();
	textW=textRect(false).width();
	textH=textRect(false).height();

	// Draw pixmap
	TQRect pRect = pixmapRect(false);
	int pixX = pRect.left() + ( thumbnailSize - pixmap()->width() ) / 2;
	int pixY = pRect.top() + ( thumbnailSize - pixmap()->height() ) / 2;
	p->drawPixmap( pixX, pixY, *pixmap() );

	TQColor bg;
	if ( isSelected() ) {
		bg=cg.highlight();
	} else {
		bg=cg.mid();
	}
	
	// Draw shown item indicator
	if (isShownItem) {
		TQPointArray pa(3);
		pa[0] = pixmapRect(false).bottomLeft();
		pa[0].rx() += pixmapRect(false).width() / 2;
		pa[0].ry() += PADDING - 1;
		pa[0].ry() -= SHOWN_ITEM_INDICATOR_SIZE;
		
		pa[1] = pa[0];
		pa[1].rx() -= SHOWN_ITEM_INDICATOR_SIZE;
		pa[1].ry() += SHOWN_ITEM_INDICATOR_SIZE;

		pa[2] = pa[1];
		pa[2].rx() += SHOWN_ITEM_INDICATOR_SIZE * 2;
		
		p->setBrush(cg.highlight());
		p->setPen(cg.base());
		p->drawPolygon(pa);
	}
	
	if (isImage || isSelected()) {
		// Draw frame
		TQRect frmRect=pixmapRect(false);
		frmRect.addCoords(-PADDING, -PADDING, PADDING, PADDING);
		
		p->setBrush(TQBrush());
		p->setPen(bg);
		p->drawRect(frmRect);
		if (isSelected()) {
			frmRect.addCoords(1, 1, -1, -1);
			p->drawRect(frmRect);
		}
	}

	// Draw text
	p->setPen(cg.text());
	p->setBackgroundColor(cg.base());
	int align = (isRight ? AlignAuto : AlignHCenter) | AlignTop;
	
	TQValueVector<Line*>::ConstIterator it=mLines.begin();
	TQValueVector<Line*>::ConstIterator itEnd=mLines.end();
	for (;it!=itEnd; ++it) {
		const Line* line=*it;
		line->paint(p, textX, textY, align);
		textY+=line->height();
	}
}


bool FileThumbnailViewItem::acceptDrop(const TQMimeSource* source) const {
	return KURLDrag::canDecode(source);
}


void FileThumbnailViewItem::dropped(TQDropEvent* event, const TQValueList<TQIconDragItem>&) {
	FileThumbnailView *view=static_cast<FileThumbnailView*>(iconView());
	emit view->dropped(event,mFileItem);
}

void FileThumbnailViewItem::setImageSize(const TQSize& size) {
	mImageSize=size;
	updateLines();
}

} // namespace