/* TranslationEditorDialog::openRange
* Opens the translation range [index] from the current translation
*******************************************************************/
void TranslationEditorDialog::openRange(int index)
{
// Check index
if (index < 0 || index >= (int)translation.nRanges())
return;
// Get translation range to open
TransRange* tr = translation.getRange(index);
// Set origin selection
pal_canvas_original->setSelection(tr->oStart(), tr->oEnd());
pal_canvas_original->Refresh();
// Check translation range type
if (tr->getType() == TRANS_PALETTE)
{
// Palette range
TransRangePalette* tpr = (TransRangePalette*)tr;
// Select palette type radiobox
rb_type_palette->SetValue(true);
showPaletteTarget();
// Set target range selection
if (tpr->dStart() <= tpr->dEnd())
{
pal_canvas_target->setSelection(tpr->dStart(), tpr->dEnd());
cb_target_reverse->SetValue(false);
}
else
{
pal_canvas_target->setSelection(tpr->dEnd(), tpr->dStart());
cb_target_reverse->SetValue(true);
}
pal_canvas_target->Refresh();
}
else if (tr->getType() == TRANS_COLOUR)
{
// Colour gradient
TransRangeColour* tcr = (TransRangeColour*)tr;
// Select colour type radiobox
rb_type_colour->SetValue(true);
showGradientTarget();
// Set beginning colour
gb_gradient->setStartCol(tcr->dStart());
cp_range_begin->SetColour(WXCOL(tcr->dStart()));
// Set ending colour
gb_gradient->setEndCol(tcr->dEnd());
cp_range_end->SetColour(WXCOL(tcr->dEnd()));
// Update UI
gb_gradient->Refresh();
}
else if (tr->getType() == TRANS_DESAT)
{
// Desaturated colour gradient
TransRangeDesat* tdr = (TransRangeDesat*)tr;
// Select desaturated colour type radiobox
rb_type_desaturate->SetValue(true);
showGradientTarget();
// Set beginning colour
rgba_t col;
col.r = MathStuff::clamp(tdr->dSr() * 128, 0, 255);
col.g = MathStuff::clamp(tdr->dSg() * 128, 0, 255);
col.b = MathStuff::clamp(tdr->dSb() * 128, 0, 255);
cp_range_begin->SetColour(WXCOL(col));
gb_gradient->setStartCol(col);
// Set ending colour
col.r = MathStuff::clamp(tdr->dEr() * 128, 0, 255);
col.g = MathStuff::clamp(tdr->dEg() * 128, 0, 255);
col.b = MathStuff::clamp(tdr->dEb() * 128, 0, 255);
cp_range_end->SetColour(WXCOL(col));
gb_gradient->setEndCol(col);
// Update UI
gb_gradient->Refresh();
}
}
/* SImage::applyTranslation
* Applies a palette translation to the image
*******************************************************************/
bool SImage::applyTranslation(Translation* tr, Palette8bit* pal)
{
// Check image is ok
if (!data)
return false;
// Can't apply a translation to a non-paletted image
if (type != PALMASK)
return false;
// Get palette to use
if (has_palette || !pal)
pal = &palette;
// Go through pixels
for (int p = 0; p < width*height; p++)
{
uint8_t i = data[p];
// No need to process transparent pixels
if (mask && mask[p] == 0)
continue;
// Go through each translation component
for (unsigned a = 0; a < tr->nRanges(); a++)
{
TransRange* r = tr->getRange(a);
// Palette range translation
if (r->getType() == TRANS_PALETTE)
{
TransRangePalette* tp = (TransRangePalette*)r;
// Check pixel is within translation range
if (i >= tp->oStart() && i <= tp->oEnd())
{
// Figure out how far along the range this colour is
double range_frac = 0;
if (tp->oStart() != tp->oEnd())
range_frac = double(i - tp->oStart()) / double(tp->oEnd() - tp->oStart());
// Determine destination palette index
uint8_t di = tp->dStart() + range_frac * (tp->dEnd() - tp->dStart());
// Apply new colour
data[p] = di;
}
}
// Colour range
else if (r->getType() == TRANS_COLOUR)
{
TransRangeColour* tc = (TransRangeColour*)r;
// Check pixel is within translation range
if (i >= tc->oStart() && i <= tc->oEnd())
{
// Figure out how far along the range this colour is
double range_frac = 0;
if (tc->oStart() != tc->oEnd())
range_frac = double(i - tc->oStart()) / double(tc->oEnd() - tc->oStart());
// Determine destination colour
uint8_t r = tc->dStart().r + range_frac * (tc->dEnd().r - tc->dStart().r);
uint8_t g = tc->dStart().g + range_frac * (tc->dEnd().g - tc->dStart().g);
uint8_t b = tc->dStart().b + range_frac * (tc->dEnd().b - tc->dStart().b);
// Find nearest colour in palette
uint8_t di = pal->nearestColour(rgba_t(r, g, b));
// Apply new colour
data[p] = di;
}
}
// Desaturated colour range
else if (r->getType() == TRANS_DESAT)
{
TransRangeDesat* td = (TransRangeDesat*)r;
// Check pixel is within translation range
if (i >= td->oStart() && i <= td->oEnd())
{
// Get greyscale colour
rgba_t col = pal->colour(i);
float grey = (col.r*0.3f + col.g*0.59f + col.b*0.11f) / 255.0f;
// Determine destination colour
uint8_t r = MIN(255, int((td->dSr() + grey*(td->dEr() - td->dSr()))*255.0f));
uint8_t g = MIN(255, int((td->dSg() + grey*(td->dEg() - td->dSg()))*255.0f));
uint8_t b = MIN(255, int((td->dSb() + grey*(td->dEb() - td->dSb()))*255.0f));
// Find nearest colour in palette
uint8_t di = pal->nearestColour(rgba_t(r, g, b));
// Apply new colour
data[p] = di;
}
}
}
}
return true;
}