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All HSV sliders in color picker (#796)

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Co-authored-by: Tamás Bálint Misius <lbphacker@gmail.com>
This commit is contained in:
Maticzpl 2021-07-29 17:23:39 +02:00 committed by GitHub
parent f13fe3d36b
commit 4ed600b621
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2 changed files with 76 additions and 60 deletions
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129
src/gui/colourpicker/ColourPickerActivity.cpp
View File

@ -1,6 +1,7 @@
#include "ColourPickerActivity.h"
#include "gui/interface/Textbox.h"
#include "gui/interface/Slider.h"
#include "gui/interface/Button.h"
#include "gui/interface/Label.h"
#include "gui/interface/Keys.h"
@ -11,12 +12,11 @@
#include "Misc.h"
ColourPickerActivity::ColourPickerActivity(ui::Colour initialColour, OnPicked onPicked_) :
WindowActivity(ui::Point(-1, -1), ui::Point(266, 175)),
WindowActivity(ui::Point(-1, -1), ui::Point(266, 215)),
currentHue(0),
currentSaturation(0),
currentValue(0),
mouseDown(false),
valueMouseDown(false),
onPicked(onPicked_)
{
auto colourChange = [this] {
@ -37,8 +37,34 @@ ColourPickerActivity::ColourPickerActivity(ui::Colour initialColour, OnPicked on
RGB_to_HSV(r, g, b, &currentHue, &currentSaturation, &currentValue);
currentAlpha = alpha;
UpdateTextboxes(r, g, b, alpha);
UpdateSliders();
};
auto colourChangeSlider = [this] {
int r, g, b;
currentHue = hSlider->GetValue();
currentSaturation = sSlider->GetValue();
currentValue = vSlider->GetValue();
HSV_to_RGB(currentHue, currentSaturation, currentValue, &r, &g, &b);
UpdateTextboxes(r, g, b, currentAlpha);
UpdateSliders();
};
hSlider = new ui::Slider(ui::Point(0,134), ui::Point(Size.X,17), 359);
hSlider->SetActionCallback({ colourChangeSlider });
AddComponent(hSlider);
sSlider = new ui::Slider(ui::Point(0, 134 + 17), ui::Point(Size.X, 17), 255);
sSlider->SetActionCallback({ colourChangeSlider });
AddComponent(sSlider);
vSlider = new ui::Slider(ui::Point(0, 134 + 34), ui::Point(Size.X, 17), 255);
vSlider->SetActionCallback({ colourChangeSlider });
AddComponent(vSlider);
rValue = new ui::Textbox(ui::Point(5, Size.Y-23), ui::Point(30, 17), "255");
rValue->SetActionCallback({ colourChange });
rValue->SetLimit(3);
@ -83,6 +109,7 @@ ColourPickerActivity::ColourPickerActivity(ui::Colour initialColour, OnPicked on
RGB_to_HSV(initialColour.Red, initialColour.Green, initialColour.Blue, &currentHue, &currentSaturation, &currentValue);
currentAlpha = initialColour.Alpha;
UpdateTextboxes(initialColour.Red, initialColour.Green, initialColour.Blue, initialColour.Alpha);
UpdateSliders();
}
void ColourPickerActivity::UpdateTextboxes(int r, int g, int b, int a)
@ -93,6 +120,27 @@ void ColourPickerActivity::UpdateTextboxes(int r, int g, int b, int a)
aValue->SetText(String::Build(a));
hexValue->SetText(String::Build(Format::Hex(), Format::Uppercase(), Format::Width(2), a, r, g, b));
}
void ColourPickerActivity::UpdateSliders()
{
hSlider->SetValue(currentHue);
sSlider->SetValue(currentSaturation);
vSlider->SetValue(currentValue);
int r, g, b;
//Value gradient
HSV_to_RGB(currentHue, currentSaturation, 255, &r, &g, &b);
vSlider->SetColour(ui::Colour(0, 0, 0), ui::Colour(r, g, b));
//Saturation gradient
if (currentValue != 0)
{
HSV_to_RGB(currentHue, 255, currentValue, &r, &g, &b);
sSlider->SetColour(ui::Colour(currentValue, currentValue, currentValue), ui::Colour(r, g, b));
}
}
void ColourPickerActivity::OnTryExit(ExitMethod method)
{
Exit();
@ -118,24 +166,12 @@ void ColourPickerActivity::OnMouseMove(int x, int y, int dx, int dy)
currentHue = 0;
}
if(valueMouseDown)
{
x -= Position.X+5;
//y -= Position.Y+5;
currentValue = x;
if(currentValue > 255)
currentValue = 255;
if(currentValue < 0)
currentValue = 0;
}
if(mouseDown || valueMouseDown)
if(mouseDown)
{
int cr, cg, cb;
HSV_to_RGB(currentHue, currentSaturation, currentValue, &cr, &cg, &cb);
UpdateTextboxes(cr, cg, cb, currentAlpha);
UpdateSliders();
}
}
@ -159,32 +195,23 @@ void ColourPickerActivity::OnMouseDown(int x, int y, unsigned button)
currentHue = 0;
}
if(x >= 0 && x < 256 && y >= 132 && y <= 142)
{
valueMouseDown = true;
currentValue = x;
if(currentValue > 255)
currentValue = 255;
if(currentValue < 0)
currentValue = 0;
}
if(mouseDown || valueMouseDown)
if(mouseDown)
{
int cr, cg, cb;
HSV_to_RGB(currentHue, currentSaturation, currentValue, &cr, &cg, &cb);
UpdateTextboxes(cr, cg, cb, currentAlpha);
UpdateSliders();
}
}
void ColourPickerActivity::OnMouseUp(int x, int y, unsigned button)
{
if(mouseDown || valueMouseDown)
if(mouseDown)
{
int cr, cg, cb;
HSV_to_RGB(currentHue, currentSaturation, currentValue, &cr, &cg, &cb);
UpdateTextboxes(cr, cg, cb, currentAlpha);
UpdateSliders();
}
if(mouseDown)
@ -205,21 +232,6 @@ void ColourPickerActivity::OnMouseUp(int x, int y, unsigned button)
if(currentHue < 0)
currentHue = 0;
}
if(valueMouseDown)
{
valueMouseDown = false;
x -= Position.X+5;
//y -= Position.Y+5;
currentValue = x;
if(currentValue > 255)
currentValue = 255;
if(currentValue < 0)
currentValue = 0;
}
}
void ColourPickerActivity::OnKeyPress(int key, int scan, bool repeat, bool shift, bool ctrl, bool alt)
@ -248,8 +260,6 @@ void ColourPickerActivity::OnDraw()
g->drawrect(Position.X+4, Position.Y+4, 258, 130, 180, 180, 180, 255);
g->drawrect(Position.X+4, Position.Y+4+4+128, 258, 12, 180, 180, 180, 255);
int offsetX = Position.X+5;
int offsetY = Position.Y+5;
@ -273,16 +283,21 @@ void ColourPickerActivity::OnDraw()
}
}
//draw brightness bar
for(int value = 0; value <= 255; value++)
for(int i = 0; i < 10; i++)
//Draw hue bar gradient
auto gradientWidth = hSlider->Size.X - 10;
for (int rx = 0; rx < gradientWidth; rx++)
{
int cr = 0;
int cg = 0;
int cb = 0;
HSV_to_RGB(currentHue, currentSaturation, value, &cr, &cg, &cb);
g->blendpixel(value+offsetX, i+offsetY+127+5, cr, cg, cb, currentAlpha);
int red, green, blue;
int hue = rx * 360 / gradientWidth;
HSV_to_RGB(hue, currentSaturation, currentValue, &red, &green, &blue);
for (int ry = 0; ry < (hSlider->Size.Y / 2) - 1; ry++)
{
g->blendpixel(
rx + offsetX + hSlider->Position.X,
ry + offsetY + hSlider->Position.Y,
red, green, blue, currentAlpha
);
}
}
//draw color square pointer
@ -293,8 +308,4 @@ void ColourPickerActivity::OnDraw()
g->xor_line(offsetX+currentHueX-5, offsetY+currentSaturationY, offsetX+currentHueX-1, offsetY+currentSaturationY);
g->xor_line(offsetX+currentHueX+1, offsetY+currentSaturationY, offsetX+currentHueX+5, offsetY+currentSaturationY);
//draw brightness bar pointer
int currentValueX = int(restrict_flt(float(currentValue), 0, 254));
g->xor_line(offsetX+currentValueX, offsetY+4+128, offsetX+currentValueX, offsetY+13+128);
g->xor_line(offsetX+currentValueX+1, offsetY+4+128, offsetX+currentValueX+1, offsetY+13+128);
}

7
src/gui/colourpicker/ColourPickerActivity.h
View File

@ -10,6 +10,7 @@ namespace ui
{
class Textbox;
class Label;
class Slider;
}
class ColourPickerActivity : public WindowActivity
@ -22,7 +23,10 @@ class ColourPickerActivity : public WindowActivity
int currentAlpha;
bool mouseDown;
bool valueMouseDown;
ui::Slider* hSlider;
ui::Slider* sSlider;
ui::Slider* vSlider;
ui::Textbox * rValue;
ui::Textbox * gValue;
@ -33,6 +37,7 @@ class ColourPickerActivity : public WindowActivity
OnPicked onPicked;
void UpdateTextboxes(int r, int g, int b, int a);
void UpdateSliders();
public:
ColourPickerActivity(ui::Colour initialColour, OnPicked onPicked = nullptr);
virtual ~ColourPickerActivity() = default;