87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
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/* C99 */
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#define _XOPEN_SOURCE
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#include <Xm/Scale.h>
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#include <Xm/Xm.h>
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#include <Xm/MwmUtil.h>
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#include <X11/Shell.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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void valueChanged (Widget, XtPointer, XtPointer);
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void setBrightness (int);
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int getBrightness ();
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int getMaxBrightness ();
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int main (int argc, char *argv[]) {
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XtAppContext application;
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Widget window = XtVaAppInitialize (
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&application, "Brightness",
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NULL, 0,
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&argc, argv,
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NULL,
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XmNtitle, "Battery",
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NULL);
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int level = getBrightness();
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int max = getMaxBrightness();
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int percent =
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(float)(level) /
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(float)(max) * 100;
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Widget scale = XtVaCreateManagedWidget (
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"Brightness", xmScaleWidgetClass, window,
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XmNmaximum, 100,
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XmNminimum, 1,
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XmNvalue, percent,
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NULL);
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XtAddCallback(scale, XmNvalueChangedCallback, valueChanged, NULL);
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XtVaSetValues(window, XmNmwmDecorations, MWM_DECOR_BORDER, NULL);
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XtVaSetValues(window, XmNmwmFunctions, MWM_FUNC_RESIZE, NULL);
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//XtVaSetValues(window, XtNheight, 400, NULL);
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//XtVaSetValues(window, XtNwidth, 400, NULL);
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XtRealizeWidget(window);
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XtAppMainLoop(application);
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}
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void valueChanged (Widget scale, XtPointer clientData, XtPointer callData) {
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(void)(scale);
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(void)(clientData);
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XmScaleCallbackStruct *event = (XmScaleCallbackStruct *)(callData);
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setBrightness(event->value);
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}
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void setBrightness (int level) {
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char command[32] = { 0 };
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snprintf(command, 32, "brightnessctl s %d%% -q", level);
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system(command);
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}
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int getBrightness () {
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FILE *stream = popen("brightnessctl g", "r");
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if (stream == NULL) {
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fprintf(stderr, "ERR could not get brightness\n");
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return 1;
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}
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int result = 1;
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fscanf(stream, "%d", &result);
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pclose(stream);
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return result;
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}
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int getMaxBrightness () {
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FILE *stream = popen("brightnessctl m", "r");
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if (stream == NULL) {
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fprintf(stderr, "ERR could not get brightness\n");
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return 1;
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}
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int result = 1;
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fscanf(stream, "%d", &result);
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pclose(stream);
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return result;
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}
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