Battery monitor shows percentage on icon
This commit is contained in:
Sasha Koshka
parent
3ba59aa2ab
commit
dda82b48a3
@ -1,17 +1,20 @@
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/* C99 */
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#define _XOPEN_SOURCE
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#include <Xm/Xm.h>
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#include <Xm/MainW.h>
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#include <Xm/Scale.h>
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#include <Xm/LabelG.h>
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#include <Xm/PushB.h>
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#include <Xm/MessageB.h>
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#include <Xm/RowColumn.h>
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#include <Xm/Separator.h>
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#include <Xmd/Icon.h>
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#include <Xmd/Exec.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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#include <sys/wait.h>
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#include "icons/level0.xbm"
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#include "icons/level1.xbm"
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@ -39,34 +42,39 @@ typedef struct {
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} BatteryInfo;
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BatteryInfo getBatteryInfo (void);
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Pixmap selectBatteryIcon (BatteryInfo);
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void loadAllPixmaps (Widget);
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Pixmap selectBatteryIcon (BatteryInfo, Pixmap[8]);
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void loadAllPixmaps (Widget, Pixmap[8]);
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void batteryPoll (XtPointer, XtIntervalId *);
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void resetBatteryPollTimeout(void);
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void batteryInfoDialog (Widget, XtPointer, XtPointer);
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Pixmap levels[8] = { 0 };
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Pixmap levels[8] = { 0 };
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Pixmap iconLevels[8] = { 0 };
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XtAppContext application;
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Widget icon;
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Widget text;
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Widget layout;
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Widget window;
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Widget topLevel;
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int main (int argc, char *argv[]) {
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window = XtVaAppInitialize (
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topLevel = XtVaAppInitialize (
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&application, "Battery",
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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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XmNiconName, "Battery",
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NULL);
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Widget window = XtVaCreateManagedWidget (
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"window", xmMainWindowWidgetClass, topLevel,
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NULL);
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layout = XtVaCreateWidget (
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"layout", xmRowColumnWidgetClass, window,
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XmNorientation, XmHORIZONTAL,
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NULL);
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loadAllPixmaps(layout);
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loadAllPixmaps(topLevel, iconLevels);
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loadAllPixmaps(layout, levels);
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icon = XtVaCreateManagedWidget (
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"batteryIcon", xmPushButtonWidgetClass, layout,
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XmNleftAttachment, XmATTACH_FORM,
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@ -87,7 +95,7 @@ int main (int argc, char *argv[]) {
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batteryPoll(NULL, NULL);
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XtManageChild(layout);
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XtRealizeWidget(window);
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XtRealizeWidget(topLevel);
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XtAppMainLoop(application);
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}
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@ -96,7 +104,11 @@ BatteryInfo getBatteryInfo (void) {
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char charging[16] = { 0 };
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int battery;
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FILE *stream = popen("acpi -b", "r");
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pid_t child;
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FILE *stream = XmdVaPipedExecPath (
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"acpi", &child, "r",
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"acpi", "-b",
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NULL);
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if (stream == NULL) {
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result.state = BatteryStateError;
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return result;
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@ -113,13 +125,14 @@ BatteryInfo getBatteryInfo (void) {
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case 'F': result.state = BatteryStateFull; break;
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default: result.state = BatteryStateError; break;
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}
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if (pclose(stream) != 0) {
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if (fclose(stream) != 0) {
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result.state = BatteryStateError;
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}
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waitpid(child, NULL, 0);
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return result;
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}
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Pixmap selectBatteryIcon (BatteryInfo info) {
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Pixmap selectBatteryIcon (BatteryInfo info, Pixmap levels[8]) {
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if (info.state == BatteryStateCharging) {
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return levels[5];
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} else if (info.state == BatteryStateNotCharging) {
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@ -139,15 +152,15 @@ Pixmap selectBatteryIcon (BatteryInfo info) {
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}
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}
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void loadAllPixmaps (Widget widget) {
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levels[0] = XmdLoadBitmapIcon(widget, level0);
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levels[1] = XmdLoadBitmapIcon(widget, level1);
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levels[2] = XmdLoadBitmapIcon(widget, level2);
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levels[3] = XmdLoadBitmapIcon(widget, level3);
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levels[4] = XmdLoadBitmapIcon(widget, level4);
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levels[5] = XmdLoadBitmapIcon(widget, charging);
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levels[6] = XmdLoadBitmapIcon(widget, error);
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levels[7] = XmdLoadBitmapIcon(widget, not);
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void loadAllPixmaps (Widget widget, Pixmap destination[8]) {
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destination[0] = XmdLoadBitmapIcon(widget, level0);
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destination[1] = XmdLoadBitmapIcon(widget, level1);
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destination[2] = XmdLoadBitmapIcon(widget, level2);
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destination[3] = XmdLoadBitmapIcon(widget, level3);
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destination[4] = XmdLoadBitmapIcon(widget, level4);
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destination[5] = XmdLoadBitmapIcon(widget, charging);
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destination[6] = XmdLoadBitmapIcon(widget, error);
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destination[7] = XmdLoadBitmapIcon(widget, not);
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}
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void batteryPoll (XtPointer clientData, XtIntervalId *timer) {
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@ -158,17 +171,15 @@ void batteryPoll (XtPointer clientData, XtIntervalId *timer) {
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XtVaSetValues (
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icon,
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XmNlabelType, XmPIXMAP,
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XmNlabelPixmap, selectBatteryIcon(info),
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XmNlabelPixmap, selectBatteryIcon(info, levels),
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NULL);
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XtVaSetValues (
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window,
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XmNiconPixmap, selectBatteryIcon(info),
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topLevel,
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XmNiconPixmap, selectBatteryIcon(info, iconLevels),
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NULL);
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#define BUFFER_LEN 32
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char buffer[BUFFER_LEN];
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snprintf(buffer, BUFFER_LEN, "%d%%", info.level);
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#undef BUFFER_LEN
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char buffer[32];
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snprintf(buffer, XtNumber(buffer), "%d%%", info.level);
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/* if we don't unmanage and then re-manage the child, the text flies to
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* the top which is rather annoying. this little quirk bent me over and
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@ -182,6 +193,11 @@ void batteryPoll (XtPointer clientData, XtIntervalId *timer) {
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XmStringFree(string);
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XtManageChild(text);
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XtVaSetValues (
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topLevel,
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XmNiconName, buffer,
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NULL);
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resetBatteryPollTimeout();
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}
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@ -195,35 +211,40 @@ void batteryInfoDialog (Widget button, XtPointer clientData, XtPointer callData)
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BatteryInfo info = getBatteryInfo();
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static const char *states[] = {
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static const String states[] = {
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"Charging",
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"Not charging",
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"Full",
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"Discharging",
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"Error"
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};
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#define BUFFER_LEN 48
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char timeBuffer[BUFFER_LEN] = { 0 };
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String messageBuffer = NULL;
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switch (info.state) {
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case BatteryStateCharging:
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snprintf (
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timeBuffer, BUFFER_LEN, "\n%d:%02d:%02d until charged.",
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XtAsprintf (
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&messageBuffer,
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"%d%%, %s\n"
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"%d:%02d:%02d until charged.",
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info.level, states[info.state],
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info.hours, info.minutes, info.seconds);
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break;
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case BatteryStateDischarging:
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snprintf (
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timeBuffer, BUFFER_LEN, "\n%d:%02d:%02d until empty.",
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XtAsprintf (
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&messageBuffer,
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"%d%%, %s\n"
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"%d:%02d:%02d until empty.",
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info.level, states[info.state],
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info.hours, info.minutes, info.seconds);
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break;
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default:
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XtAsprintf (
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&messageBuffer,
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"%d%%, %s",
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info.level, states[info.state]);
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break;
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}
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#undef BUFFER_LEN
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#define BUFFER_LEN 128
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char messageBuffer[BUFFER_LEN];
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snprintf (
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messageBuffer, BUFFER_LEN, "%d%%, %s%s",
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info.level, states[info.state], timeBuffer);
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#undef BUFFER_LEN
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Arg args[5] = { 0 };
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int n = 0;
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