static SkColor HSV_to_RGB(SkColor color, HSV_Choice choice, SkScalar hsv) {
SkScalar hue = choice == kGetHue ? hsv : RGB_to_HSV(color, kGetHue);
SkScalar saturation = choice == kGetSaturation ? hsv : RGB_to_HSV(color, kGetSaturation);
SkScalar value = choice == kGetValue ? hsv : RGB_to_HSV(color, kGetValue);
value *= 255;
SkScalar red SK_INIT_TO_AVOID_WARNING;
SkScalar green SK_INIT_TO_AVOID_WARNING;
SkScalar blue SK_INIT_TO_AVOID_WARNING;
if (saturation == 0) // color is on black-and-white center line
red = green = blue = value;
else {
//SkScalar fraction = SkScalarMod(hue, 60 * SK_Scalar1);
int sextant = SkScalarFloor(hue / 60);
SkScalar fraction = hue / 60 - SkIntToScalar(sextant);
SkScalar p = SkScalarMul(value , SK_Scalar1 - saturation);
SkScalar q = SkScalarMul(value, SK_Scalar1 - SkScalarMul(saturation, fraction));
SkScalar t = SkScalarMul(value, SK_Scalar1 -
SkScalarMul(saturation, SK_Scalar1 - fraction));
switch (sextant % 6) {
case 0: red = value; green = t; blue = p; break;
case 1: red = q; green = value; blue = p; break;
case 2: red = p; green = value; blue = t; break;
case 3: red = p; green = q; blue = value; break;
case 4: red = t; green = p; blue = value; break;
case 5: red = value; green = p; blue = q; break;
}
}
//used to say SkToU8((U8CPU) red) etc
return SkColorSetARGB(SkColorGetA(color), SkScalarRound(red),
SkScalarRound(green), SkScalarRound(blue));
}
bool SkDrawColor::getProperty(int index, SkScriptValue* value) const {
value->fType = SkType_Float;
SkScalar result;
switch(index) {
case SK_PROPERTY(alpha):
result = SkIntToScalar(SkColorGetA(color)) / 255;
break;
case SK_PROPERTY(blue):
result = SkIntToScalar(SkColorGetB(color));
break;
case SK_PROPERTY(green):
result = SkIntToScalar(SkColorGetG(color));
break;
case SK_PROPERTY(hue):
result = RGB_to_HSV(color, kGetHue);
break;
case SK_PROPERTY(red):
result = SkIntToScalar(SkColorGetR(color));
break;
case SK_PROPERTY(saturation):
result = RGB_to_HSV(color, kGetSaturation);
break;
case SK_PROPERTY(value):
result = RGB_to_HSV(color, kGetValue);
break;
default:
SkASSERT(0);
return false;
}
value->fOperand.fScalar = result;
return true;
}
void ColorPicker::OnSlide(Slide *slide, int slideId, double pos)
{
switch(slideId)
{
case SL_COLOR:
{
int color = pos*255;
if(fixedColor <= FIX_BLUE)
{
switch(fixedColor)
{
case FIX_RED:
r = color;
break;
case FIX_GREEN:
g = color;
break;
case FIX_BLUE:
b = color;
break;
}
UpdateSample(r, g, b);
}
else
{
double H, S, V;
KrRGBA c;
RGB_to_HSV(r, g, b, H, S, V);
switch(fixedColor)
{
case FIX_HUE:
c = HSV_to_RGB(color, S, V);
break;
case FIX_SATURATION:
c = HSV_to_RGB(H, color, V);
break;
case FIX_BRIGHTNESS:
c = HSV_to_RGB(H, S, color);
break;
}
UpdateSample(c.c.red, c.c.green, c.c.blue);
}
UpdateCanvas(color, fixedColor);
}
break;
}
}
void TextChangedCallback(ui::Textbox * sender)
{
int r, g, b;
r = format::StringToNumber<int>(a->rValue->GetText());
g = format::StringToNumber<int>(a->gValue->GetText());
b = format::StringToNumber<int>(a->bValue->GetText());
RGB_to_HSV(r, g, b, &a->currentHue, &a->currentSaturation, &a->currentValue);
}
void ColorPicker::UpdateColorControls()
{
UpdateSlideColor(r, g, b, fixedColor);
if(fixedColor <= FIX_BLUE)
{
switch(fixedColor)
{
case FIX_RED:
colorSlide->SetPos(r/255.0);
canvas->SetPointer(b, 255 - g);
break;
case FIX_GREEN:
colorSlide->SetPos(g/255.0);
canvas->SetPointer(b, 255 - r);
break;
case FIX_BLUE:
colorSlide->SetPos(b/255.0);
canvas->SetPointer(r, 255 - g);
break;
}
}
else
{
double H, S, V;
RGB_to_HSV(r, g, b, H, S, V);
switch(fixedColor)
{
case FIX_HUE:
colorSlide->SetPos(H/255.0);
canvas->SetPointer(S, 255 - V);
break;
case FIX_SATURATION:
colorSlide->SetPos(S/255.0);
canvas->SetPointer(H, 255 - V);
break;
case FIX_BRIGHTNESS:
colorSlide->SetPos(V/255.0);
canvas->SetPointer(H, 255 - S);
break;
}
}
UpdateCanvas(colorSlide->GetPos()*255, fixedColor);
}
//---------------------------------------------------------------------------
void __fastcall TMainForm::CalculateColors()
{
unsigned char red,green,blue;
try
{
red = StrToInt(this->LabeledEdit1->Text);
green = StrToInt(this->LabeledEdit2->Text);
blue = StrToInt(this->LabeledEdit3->Text);
}
catch(...)
{
return;
}
double r,g,b;
double x,y,z;
double l,a,bb;
double h,s,v;
double ll;
r = (double)red / 255.;
g = (double)green / 255.;
b = (double)blue / 255.;
RGB_to_XYZ(r,g,b,x,y,z);
LabeledEdit4->Text = FormatFloat("0.000", x);
LabeledEdit5->Text = FormatFloat("0.000", y);
LabeledEdit6->Text = FormatFloat("0.000", z);
XYZ_to_LAB(x,y,z,l,a,bb);
LabeledEdit7->Text = FormatFloat("000.000", l);
LabeledEdit8->Text = FormatFloat("000.000", a);
LabeledEdit9->Text = FormatFloat("000.000", bb);
RGB_to_HSV(r,g,b,h,s,v);
LabeledEdit10->Text = FormatFloat(".000", h);
LabeledEdit11->Text = FormatFloat(".000", s);
LabeledEdit12->Text = FormatFloat(".000", v);
RGB_to_HSL(r,g,b,h,s,ll);
LabeledEdit13->Text = FormatFloat(".000", h);
LabeledEdit14->Text = FormatFloat(".000", s);
LabeledEdit15->Text = FormatFloat(".000", ll);
}
void ColorPicker::OnEditChar(EditBox *edit, SDLKey key, int line)
{
int value = atol(edit->GetText().c_str());
bool bUpdateHSV = true;
if( (edit == rEdit || edit == gEdit || edit == bEdit) &&
(value < 0 || value > 255))
{
return;
}
if( edit == hEdit &&
(value < 0 || value > 359))
{
return;
}
if( (edit == sEdit || edit == vEdit) &&
(value < 0 || value > 100))
{
return;
}
if(edit == rEdit) r = value;
else if(edit == gEdit) g = value;
else if(edit == bEdit) b = value;
else
{
double H, S, V;
KrRGBA c;
RGB_to_HSV(r, g, b, H, S, V);
if(edit == hEdit) c = HSV_to_RGB(round(255*value/360.0), S, V);
else if(edit == sEdit) c = HSV_to_RGB(H, round(255*value/100.0), V);
else if(edit == vEdit) c = HSV_to_RGB(H, S, round(255*value/100.0));
r = c.c.red;
g = c.c.green;
b = c.c.blue;
bUpdateHSV = false;
}
UpdateColorControls();
UpdateSample(r, g, b, bUpdateHSV);
}
// SetMarkerToColor
void
ColorField::SetMarkerToColor(rgb_color color)
{
float h, s, v;
RGB_to_HSV(color.red / 255.0, color.green / 255.0, color.blue / 255.0,
h, s, v );
fLastMarkerPosition = fMarkerPosition;
float width = Width();
float height = Height();
switch (fMode) {
case R_SELECTED:
fMarkerPosition = BPoint(color.green / 255.0 * width,
(255.0 - color.blue) / 255.0 * height);
break;
case G_SELECTED:
fMarkerPosition = BPoint(color.red / 255.0 * width,
(255.0 - color.blue) / 255.0 * height);
break;
case B_SELECTED:
fMarkerPosition = BPoint(color.red / 255.0 * width,
(255.0 - color.green) / 255.0 * height);
break;
case H_SELECTED:
if (fOrientation == B_VERTICAL)
fMarkerPosition = BPoint(s * width, height - v * height);
else
fMarkerPosition = BPoint(width - v * width, s * height);
break;
case S_SELECTED:
fMarkerPosition = BPoint(h / 6.0 * width, height - v * height);
break;
case V_SELECTED:
fMarkerPosition = BPoint( h / 6.0 * width, height - s * height);
break;
}
Invalidate();
}
void TextChangedCallback(ui::Textbox * sender)
{
int r, g, b, alpha;
r = format::StringToNumber<int>(a->rValue->GetText());
g = format::StringToNumber<int>(a->gValue->GetText());
b = format::StringToNumber<int>(a->bValue->GetText());
alpha = format::StringToNumber<int>(a->aValue->GetText());
if (r > 255)
r = 255;
if (g > 255)
g = 255;
if (b > 255)
b = 255;
if (alpha > 255)
alpha = 255;
RGB_to_HSV(r, g, b, &a->currentHue, &a->currentSaturation, &a->currentValue);
a->currentAlpha = alpha;
a->UpdateTextboxes(r, g, b, alpha);
}
btVector3 TrackDisplay::modifyColor( btVector3 color, int colorStyle, float f ) {
switch(colorStyle) {
case cs_fixed:
break;
case cs_channel:
break;
case cs_hue:
color = RGB_to_HSV(color);
color.setX( f );
color = HSV_to_RGB(color);
break;
case cs_brightness:
if(f < 0.5) {
color = color * (f+0.5);
} else {
color = btVector3(1,1,1) - ( (btVector3(1,1,1) - color) * (0.5 + (1-f)) );
}
break;
}
return(color);
}
// SetMarkerToColor
void
ColorSlider::SetMarkerToColor(rgb_color color)
{
float h, s, v;
if (fMode & (H_SELECTED | S_SELECTED | V_SELECTED)) {
RGB_to_HSV((float)color.red / 255.0,
(float)color.green / 255.0,
(float)color.blue / 255.0,
h, s, v);
}
switch (fMode) {
case R_SELECTED: {
SetValue( 255 - color.red );
} break;
case G_SELECTED: {
SetValue( 255 - color.green );
} break;
case B_SELECTED: {
SetValue( 255 - color.blue );
} break;
case H_SELECTED: {
SetValue( 255.0 - round(h / 6.0 * 255.0) );
} break;
case S_SELECTED: {
SetValue( 255.0 - round(s * 255.0) );
} break;
case V_SELECTED: {
SetValue( 255.0 - round(v * 255.0) );
} break;
}
}
void
ColorField::SetMarkerToColor(rgb_color color)
{
float h;
float s;
float v;
RGB_to_HSV((float)color.red / 255.0f, (float)color.green / 255.0f,
(float)color.blue / 255.0f, h, s, v);
fLastMarkerPosition = fMarkerPosition;
switch (fColorMode) {
case R_SELECTED:
fMarkerPosition = BPoint(color.green, 255.0 - color.blue);
break;
case G_SELECTED:
fMarkerPosition = BPoint(color.red, 255.0 - color.blue);
break;
case B_SELECTED:
fMarkerPosition = BPoint(color.red, 255.0 - color.green);
break;
case H_SELECTED:
fMarkerPosition = BPoint(s * 255.0, 255.0 - v * 255.0);
break;
case S_SELECTED:
fMarkerPosition = BPoint(h / 6.0 * 255.0, 255.0 - v * 255.0);
break;
case V_SELECTED:
fMarkerPosition = BPoint(h / 6.0 * 255.0, 255.0 - s * 255.0);
break;
}
}
void ColorPicker::UpdateSample(int _r, int _g, int _b, bool bUpdateHSV)
{
newColor->SetColor(_r, _g, _b);
rSample = _r;
gSample = _g;
bSample = _b;
rEdit->SetText(rSample);
gEdit->SetText(gSample);
bEdit->SetText(bSample);
double H, S, V;
RGB_to_HSV(rSample, gSample, bSample, H, S, V);
if(bUpdateHSV)
{
hEdit->SetText(round(360*H/255.0));
sEdit->SetText(round(100*S/255.0));
vEdit->SetText(round(100*V/255.0));
}
}
void TrackDisplay::createAxes(Ogre::Vector3 pos, Ogre::Quaternion orient,
Ogre::Vector3 scale, btVector3 color, std::vector<
ogre_tools::BillboardLine*> &vec) {
for(int i=0;i<3;i++) {
ogre_tools::BillboardLine* lines = newBillboardLine();
lines->clear();
lines->setPosition(pos);
lines->setOrientation(orient);
lines->setScale(scale);
btVector3 hsv = RGB_to_HSV(color);
hsv.setX(i/3.0);
btVector3 axis_color = HSV_to_RGB(hsv);
lines->setColor(axis_color.x(), axis_color.y(), axis_color.z(), alpha_);
lines->setLineWidth(lineWidth_);
lines->setMaxPointsPerLine(2);
lines->setNumLines(1);
Ogre::Vector3 v;
v = Ogre::Vector3(0, 0, 0);
v[i] = lineWidth_ * 5;
rviz::robotToOgre(v);
lines->addPoint(v);
v = Ogre::Vector3(0, 0, 0);
v[i] = -lineWidth_ * 5;
rviz::robotToOgre(v);
lines->addPoint(v);
vec.push_back(lines);
}
}
void ColorPicker::UpdateSlideColor(int r, int g, int b, int fixedColor)
{
KrRGBA *pixels = colorSlide->getCanvasResource()->Pixels(), color1, color2;
int width = colorSlide->Width();
if(fixedColor <= FIX_BLUE)
{
switch(fixedColor)
{
case FIX_RED:
color1.Set(255, g, b);
color2.Set(0, g, b);
break;
case FIX_GREEN:
color1.Set(r, 255, b);
color2.Set(r, 0, b);
break;
case FIX_BLUE:
color1.Set(r, g, 255);
color2.Set(r, g, 0);
break;
}
for(int i = 2; i < width - 3; i++)
{
for(int j = 1; j < 255; j++)
{
pixels[ j*width + i ] = SlowCanvas::MixColors(color1, color2, (j - 1)/(254.0));
}
}
}
else
{
double H, S, V;
RGB_to_HSV(r, g, b, H, S, V);
for(int j = 1; j < 255; j++)
{
KrRGBA color;
switch(fixedColor)
{
case FIX_HUE:
color = HSV_to_RGB(255 - j, 255, 255);
break;
case FIX_SATURATION:
color = HSV_to_RGB(H, 255 - j, V);
break;
case FIX_BRIGHTNESS:
color = HSV_to_RGB(H, S, 255 - j);
break;
}
for(int i = 2; i < width - 3; i++)
{
pixels[ j*width + i ] = color;
}
}
}
colorSlide->getImage()->Invalidate();
colorSlide->getCanvasResource()->Refresh();
}
void CMultiColor::hsv(double& h, double& s, double& v)
{
RGB_to_HSV(m_r, m_g, m_b, h,s,v);
}
ColourPickerActivity::ColourPickerActivity(ui::Colour initialColour, ColourPickedCallback * callback) :
WindowActivity(ui::Point(-1, -1), ui::Point(266, 175)),
currentHue(0),
currentSaturation(0),
currentValue(0),
mouseDown(false),
valueMouseDown(false),
callback(callback)
{
class ColourChange : public ui::TextboxAction
{
ColourPickerActivity * a;
public:
ColourChange(ColourPickerActivity * a) : a(a) {}
void TextChangedCallback(ui::Textbox * sender)
{
int r, g, b, alpha;
r = format::StringToNumber<int>(a->rValue->GetText());
g = format::StringToNumber<int>(a->gValue->GetText());
b = format::StringToNumber<int>(a->bValue->GetText());
alpha = format::StringToNumber<int>(a->aValue->GetText());
if (r > 255)
r = 255;
if (g > 255)
g = 255;
if (b > 255)
b = 255;
if (alpha > 255)
alpha = 255;
RGB_to_HSV(r, g, b, &a->currentHue, &a->currentSaturation, &a->currentValue);
a->currentAlpha = alpha;
a->UpdateTextboxes(r, g, b, alpha);
}
};
rValue = new ui::Textbox(ui::Point(5, Size.Y-23), ui::Point(30, 17), "255");
rValue->SetActionCallback(new ColourChange(this));
rValue->SetLimit(3);
rValue->SetInputType(ui::Textbox::Number);
AddComponent(rValue);
gValue = new ui::Textbox(ui::Point(40, Size.Y-23), ui::Point(30, 17), "255");
gValue->SetActionCallback(new ColourChange(this));
gValue->SetLimit(3);
gValue->SetInputType(ui::Textbox::Number);
AddComponent(gValue);
bValue = new ui::Textbox(ui::Point(75, Size.Y-23), ui::Point(30, 17), "255");
bValue->SetActionCallback(new ColourChange(this));
bValue->SetLimit(3);
bValue->SetInputType(ui::Textbox::Number);
AddComponent(bValue);
aValue = new ui::Textbox(ui::Point(110, Size.Y-23), ui::Point(30, 17), "255");
aValue->SetActionCallback(new ColourChange(this));
aValue->SetLimit(3);
aValue->SetInputType(ui::Textbox::Number);
AddComponent(aValue);
hexValue = new::ui::Label(ui::Point(150, Size.Y-23), ui::Point(53, 17), "0xFFFFFFFF");
AddComponent(hexValue);
class OkayAction: public ui::ButtonAction
{
ColourPickerActivity * a;
public:
OkayAction(ColourPickerActivity * a) : a(a) { }
void ActionCallback(ui::Button * sender)
{
int Red, Green, Blue;
Red = format::StringToNumber<int>(a->rValue->GetText());
Green = format::StringToNumber<int>(a->gValue->GetText());
Blue = format::StringToNumber<int>(a->bValue->GetText());
ui::Colour col(Red, Green, Blue, a->currentAlpha);
if(a->callback)
a->callback->ColourPicked(col);
a->Exit();
}
};
ui::Button * doneButton = new ui::Button(ui::Point(Size.X-45, Size.Y-23), ui::Point(40, 17), "Done");
doneButton->SetActionCallback(new OkayAction(this));
AddComponent(doneButton);
SetOkayButton(doneButton);
RGB_to_HSV(initialColour.Red, initialColour.Green, initialColour.Blue, ¤tHue, ¤tSaturation, ¤tValue);
currentAlpha = initialColour.Alpha;
UpdateTextboxes(initialColour.Red, initialColour.Green, initialColour.Blue, initialColour.Alpha);
}
ColourPickerActivity::ColourPickerActivity(ui::Colour initialColour, ColourPickedCallback * callback) :
WindowActivity(ui::Point(-1, -1), ui::Point(266, 175)),
currentHue(0),
currentSaturation(0),
currentValue(0),
mouseDown(false),
valueMouseDown(false),
callback(callback)
{
class ColourChange : public ui::TextboxAction
{
ColourPickerActivity * a;
public:
ColourChange(ColourPickerActivity * a) : a(a) {}
void TextChangedCallback(ui::Textbox * sender)
{
int r, g, b;
r = format::StringToNumber<int>(a->rValue->GetText());
g = format::StringToNumber<int>(a->gValue->GetText());
b = format::StringToNumber<int>(a->bValue->GetText());
RGB_to_HSV(r, g, b, &a->currentHue, &a->currentSaturation, &a->currentValue);
}
};
rValue = new ui::Textbox(ui::Point(5, Size.Y-23), ui::Point(30, 17), "255");
rValue->SetActionCallback(new ColourChange(this));
rValue->SetLimit(3);
rValue->SetInputType(ui::Textbox::Number);
AddComponent(rValue);
gValue = new ui::Textbox(ui::Point(40, Size.Y-23), ui::Point(30, 17), "255");
gValue->SetActionCallback(new ColourChange(this));
gValue->SetLimit(3);
gValue->SetInputType(ui::Textbox::Number);
AddComponent(gValue);
bValue = new ui::Textbox(ui::Point(75, Size.Y-23), ui::Point(30, 17), "255");
bValue->SetActionCallback(new ColourChange(this));
bValue->SetLimit(3);
bValue->SetInputType(ui::Textbox::Number);
AddComponent(bValue);
class CancelAction: public ui::ButtonAction
{
ColourPickerActivity * a;
public:
CancelAction(ColourPickerActivity * a) : a(a) { }
void ActionCallback(ui::Button * sender)
{
a->Exit();
}
};
class OkayAction: public ui::ButtonAction
{
ColourPickerActivity * a;
public:
OkayAction(ColourPickerActivity * a) : a(a) { }
void ActionCallback(ui::Button * sender)
{
int Red, Green, Blue;
HSV_to_RGB(a->currentHue, a->currentSaturation, a->currentValue, &Red, &Green, &Blue);
ui::Colour col(Red, Green, Blue);
if(a->callback)
a->callback->ColourPicked(col);
a->Exit();
}
};
ui::Button * doneButton = new ui::Button(ui::Point(Size.X-45, Size.Y-23), ui::Point(40, 17), "Done");
doneButton->SetActionCallback(new OkayAction(this));
AddComponent(doneButton);
SetOkayButton(doneButton);
ui::Button * cancelButton = new ui::Button(ui::Point(Size.X-90, Size.Y-23), ui::Point(40, 17), "Cancel");
cancelButton->SetActionCallback(new CancelAction(this));
AddComponent(cancelButton);
SetCancelButton(cancelButton);
rValue->SetText(format::NumberToString<int>(initialColour.Red));
gValue->SetText(format::NumberToString<int>(initialColour.Green));
bValue->SetText(format::NumberToString<int>(initialColour.Blue));
RGB_to_HSV(initialColour.Red, initialColour.Green, initialColour.Blue, ¤tHue, ¤tSaturation, ¤tValue);
}