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If the app is in landscape mode and the user presses the power button, a pause is followed immediately by a surfaceChanged event because the lock screen is shown in portrait mode. This triggers a "false" resume. So, we just pause and resume following the onWindowFocusChanged events. Also, wait for SDL_APP_WILLENTERBACKGROUND and SDL_APP_DIDENTERBACKGROUND before blocking the event pump.
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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/* Simple test of power subsystem. */
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#include <stdio.h>
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#include "SDL.h"
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static void
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report_power(void)
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{
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int seconds, percent;
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const SDL_PowerState state = SDL_GetPowerInfo(&seconds, &percent);
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char *statestr = NULL;
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printf("SDL-reported power info...\n");
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switch (state) {
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case SDL_POWERSTATE_UNKNOWN:
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statestr = "Unknown";
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break;
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case SDL_POWERSTATE_ON_BATTERY:
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statestr = "On battery";
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break;
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case SDL_POWERSTATE_NO_BATTERY:
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statestr = "No battery";
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break;
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case SDL_POWERSTATE_CHARGING:
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statestr = "Charging";
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break;
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case SDL_POWERSTATE_CHARGED:
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statestr = "Charged";
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break;
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default:
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statestr = "!!API ERROR!!";
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break;
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}
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printf("State: %s\n", statestr);
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if (percent == -1) {
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printf("Percent left: unknown\n");
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} else {
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printf("Percent left: %d%%\n", percent);
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}
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if (seconds == -1) {
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printf("Time left: unknown\n");
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} else {
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printf("Time left: %d minutes, %d seconds\n", (int) (seconds / 60),
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(int) (seconds % 60));
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}
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}
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int
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main(int argc, char *argv[])
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{
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if (SDL_Init(0) == -1) {
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fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
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return 1;
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}
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report_power();
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SDL_Quit();
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return 0;
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}
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/* end of testpower.c ... */
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