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#include "terminaltheme.h"
#include "common/io.h"
#include "common/strutil.h"
#include <inttypes.h>
static bool detectByEscapeCode(FFTerminalThemeResult* result) {
// Windows Terminal removes all `\e`s in its output
if (ffGetTerminalResponse("\e]10;?\e\\" /*fg*/ "\e]11;?\e\\" /*bg*/,
6,
"%*[^0-9]10;rgb:%" SCNx16 "/%" SCNx16 "/%" SCNx16 /*"\e\\"*/ "%*[^0-9]11;rgb:%" SCNx16 "/%" SCNx16 "/%" SCNx16 /*"\e\\"*/,
&result->fg.r,
&result->fg.g,
&result->fg.b,
&result->bg.r,
&result->bg.g,
&result->bg.b) == NULL) {
if (result->fg.r > 0x0100 || result->fg.g > 0x0100 || result->fg.b > 0x0100) {
result->fg.r /= 0x0100, result->fg.g /= 0x0100, result->fg.b /= 0x0100;
}
if (result->bg.r > 0x0100 || result->bg.g > 0x0100 || result->bg.b > 0x0100) {
result->bg.r /= 0x0100, result->bg.g /= 0x0100, result->bg.b /= 0x0100;
}
} else {
return false;
}
return true;
}
static FFTerminalThemeColor fgbgToColor(int num) {
// https://github.com/dalance/termbg/blob/13c478a433fa182e65c401d26a1e7792a7f7f453/src/lib.rs#L251
switch (num) {
case 0:
return (FFTerminalThemeColor) { 0, 0, 0, false }; // black
case 1:
return (FFTerminalThemeColor) { 205, 0, 0, false }; // red
case 2:
return (FFTerminalThemeColor) { 0, 205, 0, false }; // green
case 3:
return (FFTerminalThemeColor) { 205, 205, 0, false }; // yellow
case 4:
return (FFTerminalThemeColor) { 0, 0, 238, false }; // blue
case 5:
return (FFTerminalThemeColor) { 205, 0, 205, false }; // magenta
case 6:
return (FFTerminalThemeColor) { 0, 205, 205, false }; // cyan
case 7:
return (FFTerminalThemeColor) { 229, 229, 229, false }; // white
case 8:
return (FFTerminalThemeColor) { 127, 127, 127, false }; // bright black
case 9:
return (FFTerminalThemeColor) { 255, 0, 0, false }; // bright red
case 10:
return (FFTerminalThemeColor) { 0, 255, 0, false }; // bright green
case 11:
return (FFTerminalThemeColor) { 255, 255, 0, false }; // bright yellow
case 12:
return (FFTerminalThemeColor) { 92, 92, 255, false }; // bright blue
case 13:
return (FFTerminalThemeColor) { 255, 0, 255, false }; // bright magenta
case 14:
return (FFTerminalThemeColor) { 0, 255, 255, false }; // bright cyan
case 15:
return (FFTerminalThemeColor) { 255, 255, 255, false }; // bright white
default:
return (FFTerminalThemeColor) { 0, 0, 0, false }; // invalid
}
}
static bool detectByEnv(FFTerminalThemeResult* result) {
const char* color = getenv("COLORFGBG"); // 7;0
if (!ffStrSet(color)) {
return false;
}
int f, g;
if (sscanf(color, "%d;%d", &f, &g) != 2) {
return false;
}
result->fg = fgbgToColor(f);
result->bg = fgbgToColor(g);
return true;
}
static inline bool detectColor(FFTerminalThemeResult* result, bool forceEnv) {
if (!forceEnv && detectByEscapeCode(result)) {
return true;
}
return detectByEnv(result);
}
bool ffDetectTerminalTheme(FFTerminalThemeResult* result, bool forceEnv) {
if (!detectColor(result, forceEnv)) {
return false;
}
result->fg.dark = result->fg.r * 299 + result->fg.g * 587 + result->fg.b * 114 < 128000;
result->bg.dark = result->bg.r * 299 + result->bg.g * 587 + result->bg.b * 114 < 128000;
return true;
}
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