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path: root/libopie2/opiemm/oimagescrollview.cpp
authoralwin <alwin>2005-03-22 22:15:50 (UTC)
committer alwin <alwin>2005-03-22 22:15:50 (UTC)
commit31035d399edaaaff64976705fd44468b6357c863 (patch) (unidiff)
treecd32f1d5c23de21a924b5bd8bb7d43fadf160e3e /libopie2/opiemm/oimagescrollview.cpp
parent0b1f73644d33291b3a03d347dc5be3167126b652 (diff)
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added missing interface methods for a generic imagedisplay (display
brightness) apps using that OImageScrollview must rebuild! this will be the last change of interface for a long time
Diffstat (limited to 'libopie2/opiemm/oimagescrollview.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opiemm/oimagescrollview.cpp107
1 files changed, 107 insertions, 0 deletions
diff --git a/libopie2/opiemm/oimagescrollview.cpp b/libopie2/opiemm/oimagescrollview.cpp
index 37a1ad5..58a9748 100644
--- a/libopie2/opiemm/oimagescrollview.cpp
+++ b/libopie2/opiemm/oimagescrollview.cpp
@@ -32,6 +32,7 @@ OImageScrollView::OImageScrollView( QWidget* parent, const char* name, WFlags f
32 m_states[IMAGE_IS_JPEG]=false; 32 m_states[IMAGE_IS_JPEG]=false;
33 m_states[IMAGE_SCALED_LOADED]=false; 33 m_states[IMAGE_SCALED_LOADED]=false;
34 m_states[SHOW_ZOOMER]=true; 34 m_states[SHOW_ZOOMER]=true;
35 _newImage = true;
35 init(); 36 init();
36} 37}
37 38
@@ -48,6 +49,7 @@ OImageScrollView::OImageScrollView (const QImage&img, QWidget * parent, const ch
48 m_states[SHOW_ZOOMER]=true; 49 m_states[SHOW_ZOOMER]=true;
49 _original_data.convertDepth(QPixmap::defaultDepth()); 50 _original_data.convertDepth(QPixmap::defaultDepth());
50 _original_data.setAlphaBuffer(false); 51 _original_data.setAlphaBuffer(false);
52 _newImage = true;
51 init(); 53 init();
52} 54}
53 55
@@ -62,6 +64,7 @@ OImageScrollView::OImageScrollView (const QString&img, QWidget * parent, const c
62 m_states[IMAGE_IS_JPEG]=false; 64 m_states[IMAGE_IS_JPEG]=false;
63 m_states[IMAGE_SCALED_LOADED]=false; 65 m_states[IMAGE_SCALED_LOADED]=false;
64 m_states[SHOW_ZOOMER]=true; 66 m_states[SHOW_ZOOMER]=true;
67 _newImage = true;
65 init(); 68 init();
66 setImage(img); 69 setImage(img);
67} 70}
@@ -75,6 +78,7 @@ void OImageScrollView::setImage(const QImage&img)
75 m_lastName = ""; 78 m_lastName = "";
76 setImageIsJpeg(false); 79 setImageIsJpeg(false);
77 setImageScaledLoaded(false); 80 setImageScaledLoaded(false);
81 _newImage = true;
78 if (FirstResizeDone()) { 82 if (FirstResizeDone()) {
79 generateImage(); 83 generateImage();
80 } 84 }
@@ -86,6 +90,7 @@ void OImageScrollView::loadJpeg(bool interncall)
86 QImageIO iio( m_lastName, 0l ); 90 QImageIO iio( m_lastName, 0l );
87 QString param; 91 QString param;
88 bool real_load = false; 92 bool real_load = false;
93 _newImage = true;
89 if (AutoScale()) { 94 if (AutoScale()) {
90 if (!interncall) { 95 if (!interncall) {
91 ExifData xf; 96 ExifData xf;
@@ -123,6 +128,7 @@ void OImageScrollView::setImage( const QString& path ) {
123 odebug << "load new image " << oendl; 128 odebug << "load new image " << oendl;
124 if (m_lastName == path) return; 129 if (m_lastName == path) return;
125 m_lastName = path; 130 m_lastName = path;
131 _newImage = true;
126 _original_data = QImage(); 132 _original_data = QImage();
127 QString itype = QImage::imageFormat(m_lastName); 133 QString itype = QImage::imageFormat(m_lastName);
128 odebug << "Image type = " << itype << oendl; 134 odebug << "Image type = " << itype << oendl;
@@ -174,6 +180,7 @@ void OImageScrollView::init()
174 if (image_fit_into(_original_data.size()) || !ShowZoomer()) _zoomer->hide(); 180 if (image_fit_into(_original_data.size()) || !ShowZoomer()) _zoomer->hide();
175 resizeContents(_original_data.width(),_original_data.height()); 181 resizeContents(_original_data.width(),_original_data.height());
176 } 182 }
183 _intensity = 0;
177} 184}
178 185
179void OImageScrollView::setAutoRotate(bool how) 186void OImageScrollView::setAutoRotate(bool how)
@@ -340,9 +347,102 @@ void OImageScrollView::rotate_into_data(Rotation r)
340 } 347 }
341 348
342 } 349 }
350 _newImage = true;
343 _image_data = dest; 351 _image_data = dest;
344} 352}
345 353
354void OImageScrollView::apply_gamma(int aValue)
355{
356 if (!_image_data.size().isValid()) return;
357 float percent = ((float)aValue/100);
358 odebug << "Apply gamma " << percent << oendl;
359 int pixels = _image_data.depth()>8?_image_data.width()*_image_data.height() : _image_data.numColors();
360 int segColors = _image_data.depth() > 8 ? 256 : _image_data.numColors();
361 unsigned char *segTbl = new unsigned char[segColors];
362 bool brighten = (percent >= 0);
363 if ( percent < 0 )
364 percent = -percent;
365
366 unsigned int *data = _image_data.depth() > 8 ? (unsigned int *)_image_data.bits() :
367 (unsigned int *)_image_data.colorTable();
368
369
370 if (brighten) {
371 for ( int i=0; i < segColors; ++i )
372 {
373 int tmp = (int)(i*percent);
374 if ( tmp > 255 )
375 tmp = 255;
376 segTbl[i] = tmp;
377 }
378 } else {
379 for ( int i=0; i < segColors; ++i )
380 {
381 int tmp = (int)(i*percent);
382 if ( tmp < 0 )
383 tmp = 0;
384 segTbl[i] = tmp;
385 }
386 }
387 if (brighten) {
388 for ( int i=0; i < pixels; ++i )
389 {
390 int r = qRed(data[i]);
391 int g = qGreen(data[i]);
392 int b = qBlue(data[i]);
393 int a = qAlpha(data[i]);
394 r = r + segTbl[r] > 255 ? 255 : r + segTbl[r];
395 g = g + segTbl[g] > 255 ? 255 : g + segTbl[g];
396 b = b + segTbl[b] > 255 ? 255 : b + segTbl[b];
397 data[i] = qRgba(r, g, b,a);
398 }
399 } else {
400 for ( int i=0; i < pixels; ++i )
401 {
402 int r = qRed(data[i]);
403 int g = qGreen(data[i]);
404 int b = qBlue(data[i]);
405 int a = qAlpha(data[i]);
406 r = r - segTbl[r] < 0 ? 0 : r - segTbl[r];
407 g = g - segTbl[g] < 0 ? 0 : g - segTbl[g];
408 b = b - segTbl[b] < 0 ? 0 : b - segTbl[b];
409 data[i] = qRgba(r, g, b, a);
410 }
411 }
412 delete [] segTbl;
413}
414
415const int OImageScrollView::Intensity()const
416{
417 return _intensity;
418}
419
420int OImageScrollView::setIntensity(int value,bool reload)
421{
422 int oldi = _intensity;
423 _intensity = value;
424 if (!_pdata.size().isValid()) {
425 return _intensity;
426 }
427
428 if (!reload) {
429 _image_data = _pdata.convertToImage();
430 apply_gamma(_intensity-oldi);
431 _pdata.convertFromImage(_image_data);
432 /*
433 * invalidate
434 */
435 _image_data=QImage();
436 if (isVisible()) {
437 updateContents(contentsX(),contentsY(),width(),height());
438 }
439 } else {
440 _newImage = true;
441 generateImage();
442 }
443 return _intensity;
444}
445
346void OImageScrollView::generateImage() 446void OImageScrollView::generateImage()
347{ 447{
348 Rotation r = Rotate0; 448 Rotation r = Rotate0;
@@ -367,6 +467,7 @@ void OImageScrollView::generateImage()
367 } else { 467 } else {
368 rotate_into_data(r); 468 rotate_into_data(r);
369 } 469 }
470 _newImage = true;
370 } 471 }
371 rescaleImage(width(),height()); 472 rescaleImage(width(),height());
372 } else if (!FirstResizeDone()||r!=m_last_rot||_image_data.width()==0) { 473 } else if (!FirstResizeDone()||r!=m_last_rot||_image_data.width()==0) {
@@ -377,6 +478,12 @@ void OImageScrollView::generateImage()
377 } 478 }
378 m_last_rot = r; 479 m_last_rot = r;
379 } 480 }
481
482 if (_newImage) {
483 apply_gamma(_intensity);
484 _newImage = false;
485 }
486
380 _pdata.convertFromImage(_image_data); 487 _pdata.convertFromImage(_image_data);
381 twidth = _image_data.width(); 488 twidth = _image_data.width();
382 theight = _image_data.height(); 489 theight = _image_data.height();