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core: Add option to print hovered color

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This commit is contained in:
jonas-elhs 2025-08-24 18:11:10 +02:00
parent d6a1363a86
commit 67f63f9a95
3 changed files with 86 additions and 1 deletions
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81
src/hyprpicker.cpp
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@ -644,6 +644,87 @@ void CHyprpicker::initMouse() {
m_vLastCoords = {x, y};
if (m_bPrintHovered) {
// relative brightness of a color
// https://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef
const auto FLUMI = [](const float& c) -> float { return c <= 0.03928 ? c / 12.92 : powf((c + 0.055) / 1.055, 2.4); };
// get the px and print it
const auto MOUSECOORDSABS = m_vLastCoords.floor() / m_pLastSurface->m_pMonitor->size;
const auto CLICKPOS = MOUSECOORDSABS * m_pLastSurface->screenBuffer->pixelSize;
const auto COL = getColorFromPixel(m_pLastSurface, CLICKPOS);
// threshold: (lumi_white + 0.05) / (x + 0.05) == (x + 0.05) / (lumi_black + 0.05)
// https://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef
const uint8_t FG = 0.2126 * FLUMI(COL.r / 255.0f) + 0.7152 * FLUMI(COL.g / 255.0f) + 0.0722 * FLUMI(COL.b / 255.0f) > 0.17913 ? 0 : 255;
auto toHex = [this](int i) -> std::string {
const char* DS = m_bUseLowerCase ? "0123456789abcdef" : "0123456789ABCDEF";
std::string result = "";
result += DS[i / 16];
result += DS[i % 16];
return result;
};
std::string hexColor = std::format("#{0:02x}{1:02x}{2:02x}", COL.r, COL.g, COL.b);
switch (m_bSelectedOutputMode) {
case OUTPUT_CMYK: {
float c, m, y, k;
COL.getCMYK(c, m, y, k);
std::string formattedColor = std::format("{}% {}% {}% {}%", c, m, y, k);
if (m_bFancyOutput)
Debug::log(NONE, "\033[38;2;%i;%i;%i;48;2;%i;%i;%im%g%% %g%% %g%% %g%%\033[0m", FG, FG, FG, COL.r, COL.g, COL.b, c, m, y, k);
else
Debug::log(NONE, "%g%% %g%% %g%% %g%%", c, m, y, k);
break;
}
case OUTPUT_HEX: {
if (m_bFancyOutput)
Debug::log(NONE, "\033[38;2;%i;%i;%i;48;2;%i;%i;%im#%s%s%s\033[0m", FG, FG, FG, COL.r, COL.g, COL.b, toHex(COL.r).c_str(), toHex(COL.g).c_str(),
toHex(COL.b).c_str());
else
Debug::log(NONE, "#%s%s%s", toHex(COL.r).c_str(), toHex(COL.g).c_str(), toHex(COL.b).c_str());
break;
}
case OUTPUT_RGB: {
std::string formattedColor = std::format("{} {} {}", COL.r, COL.g, COL.b);
if (m_bFancyOutput)
Debug::log(NONE, "\033[38;2;%i;%i;%i;48;2;%i;%i;%im%i %i %i\033[0m", FG, FG, FG, COL.r, COL.g, COL.b, COL.r, COL.g, COL.b);
else
Debug::log(NONE, "%i %i %i", COL.r, COL.g, COL.b);
break;
}
case OUTPUT_HSL:
case OUTPUT_HSV: {
float h, s, l_or_v;
if (m_bSelectedOutputMode == OUTPUT_HSV)
COL.getHSV(h, s, l_or_v);
else
COL.getHSL(h, s, l_or_v);
std::string formattedColor = std::format("{} {}% {}%", h, s, l_or_v);
if (m_bFancyOutput)
Debug::log(NONE, "\033[38;2;%i;%i;%i;48;2;%i;%i;%im%g %g%% %g%%\033[0m", FG, FG, FG, COL.r, COL.g, COL.b, h, s, l_or_v);
else
Debug::log(NONE, "%g %g%% %g%%", h, s, l_or_v);
break;
}
}
}
markDirty();
});
m_pPointer->setButton([this](CCWlPointer* r, uint32_t serial, uint32_t time, uint32_t button, uint32_t button_state) {

1
src/hyprpicker.hpp
View file

@ -47,6 +47,7 @@ class CHyprpicker {
bool m_bNoFractional = false;
bool m_bDisablePreview = false;
bool m_bUseLowerCase = false;
bool m_bPrintHovered = false;
bool m_bRunning = true;

5
src/main.cpp
View file

@ -18,6 +18,7 @@ static void help() {
<< " -t | --no-fractional | Disable fractional scaling support\n"
<< " -d | --disable-preview | Disable live preview of color\n"
<< " -l | --lowercase-hex | Outputs the hexcode in lowercase\n"
<< " -p | --print-hovered | Prints the hovered color to stdout\n"
<< " -V | --version | Print version info\n";
}
@ -39,9 +40,10 @@ int main(int argc, char** argv, char** envp) {
{"disable-preview", no_argument, nullptr, 'd'},
{"lowercase-hex", no_argument, nullptr, 'l'},
{"version", no_argument, nullptr, 'V'},
{"print-hovered", no_argument, nullptr, 'p'},
{nullptr, 0, nullptr, 0}};
int c = getopt_long(argc, argv, ":f:hnbarzqvtdlV", long_options, &option_index);
int c = getopt_long(argc, argv, ":f:hnbarzqvtdlpV", long_options, &option_index);
if (c == -1)
break;
@ -73,6 +75,7 @@ int main(int argc, char** argv, char** envp) {
case 'v': Debug::verbose = true; break;
case 'd': g_pHyprpicker->m_bDisablePreview = true; break;
case 'l': g_pHyprpicker->m_bUseLowerCase = true; break;
case 'p': g_pHyprpicker->m_bPrintHovered = true; break;
case 'V': {
std::cout << "hyprpicker v" << HYPRPICKER_VERSION << "\n";
exit(0);