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boinc/clientscr/Mac_Saver_ModuleView.m

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
//
// Mac_Saver_ModuleView.m
// BOINC_Saver_Module
//
#import "Mac_Saver_ModuleView.h"
#include <Carbon/Carbon.h>
#include <AppKit/AppKit.h>
#include <QTKit/QTKitDefines.h> // For NSInteger
#include <IOKit/hidsystem/IOHIDLib.h>
#include <IOKit/hidsystem/IOHIDParameter.h>
#include <IOKit/hidsystem/event_status_driver.h>
#ifndef NSInteger
#if __LP64__ || NS_BUILD_32_LIKE_64
typedef long NSInteger;
#else
typedef int NSInteger;
#endif
#endif
#ifndef CGFLOAT_DEFINED
typedef float CGFloat;
#endif
#ifndef GrafPtr
// OS 10.7 SDK and later do not have QuickDraw headers
// Although the run-time libraries are still available,
// we use weak linking in case they are removed in
// future versions of OS X.
typedef struct OpaqueGrafPtr* GrafPtr;
void GetPort(GrafPtr * port) __attribute__((weak_import));
void SetPortTextFont(GrafPtr port,short txFont) __attribute__((weak_import));
void SetPortTextSize(CGrafPtr port, short txSize) __attribute__((weak_import));
#endif
#define kHelveticaFontID 21
void print_to_log_file(const char *format, ...);
void strip_cr(char *buf);
static SInt32 gSystemVersion = 0;
static double gSS_StartTime = 0.0;
mach_port_t gEventHandle = 0;
int gGoToBlank; // True if we are to blank the screen
int gBlankingTime; // Delay in minutes before blanking the screen
NSString *gPathToBundleResources = NULL;
NSString *mBundleID = NULL; // our bundle ID
NSImage *gBOINC_Logo = NULL;
int gTopWindowListIndex = -1;
NSRect gMovingRect;
float gImageXIndent;
float gTextBoxHeight;
CGFloat gActualTextBoxHeight;
NSPoint gCurrentPosition;
NSPoint gCurrentDelta;
CGContextRef myContext;
bool isErased;
#define TEXTBOXMINWIDTH 400.0
#define MINTEXTBOXHEIGHT 40.0
#define MAXTEXTBOXHEIGHT 300.0
#define TEXTBOXTOPBORDER 15
#define SAFETYBORDER 20.0
#define MINDELTA 8
#define MAXDELTA 16
int signof(float x) {
return (x > 0.0 ? 1 : -1);
}
@implementation BOINC_Saver_ModuleView
- (id)initWithFrame:(NSRect)frame isPreview:(BOOL)isPreview {
self = [ super initWithFrame:frame isPreview:isPreview ];
return self;
}
// If there are multiple displays, this may get called
// multiple times (once for each display), so we need to guard
// against any problems that may cause.
- (void)startAnimation {
NSBundle * myBundle;
int newFrequency;
int period;
gEventHandle = NXOpenEventStatus();
OSStatus err = Gestalt(gestaltSystemVersion, &gSystemVersion);
if (err != noErr) {
gSystemVersion = 0;
}
initBOINCSaver();
if (gBOINC_Logo == NULL) {
if (self) {
myBundle = [ NSBundle bundleForClass:[self class]];
// grab the screensaver defaults
if (mBundleID == NULL) {
mBundleID = [ myBundle bundleIdentifier ];
}
// Path to our copy of switcher utility application in this screensaver bundle
if (gPathToBundleResources == NULL) {
gPathToBundleResources = [ myBundle resourcePath ];
}
ScreenSaverDefaults *defaults = [ ScreenSaverDefaults defaultsForModuleWithName:mBundleID ];
// try to load the version key, used to see if we have any saved settings
mVersion = [defaults floatForKey:@"version"];
if (!mVersion) {
// no previous settings so define our defaults
gGoToBlank = NO;
gBlankingTime = 1;
// write out the defaults
[ defaults setInteger:gGoToBlank forKey:@"GoToBlank" ];
[ defaults setInteger:gBlankingTime forKey:@"BlankingTime" ];
}
if (mVersion < 2) {
mVersion = 2;
[ defaults setInteger:mVersion forKey:@"version" ];
period = getGFXDefaultPeriod() / 60;
[ defaults setInteger:period forKey:@"DefaultPeriod" ];
period = getGFXSciencePeriod() / 60;
[ defaults setInteger:period forKey:@"SciencePeriod" ];
period = getGGFXChangePeriod() / 60;
[ defaults setInteger:period forKey:@"ChangePeriod" ];
// synchronize
[defaults synchronize];
}
// get defaults...
gGoToBlank = [ defaults integerForKey:@"GoToBlank" ];
gBlankingTime = [ defaults integerForKey:@"BlankingTime" ];
period = [ defaults integerForKey:@"DefaultPeriod" ];
setGFXDefaultPeriod((double)(period * 60));
period = [ defaults integerForKey:@"SciencePeriod" ];
setGFXSciencePeriod((double)(period * 60));
period = [ defaults integerForKey:@"ChangePeriod" ];
setGGFXChangePeriod((double)(period * 60));
[ self setAutoresizesSubviews:YES ]; // make sure the subview resizes.
NSString *fileName = [[ NSBundle bundleForClass:[ self class ]] pathForImageResource:@"boinc_ss_logo" ];
if (! fileName) {
// What should we do in this case?
return;
}
gBOINC_Logo = [[ NSImage alloc ] initWithContentsOfFile:fileName ];
gMovingRect.origin.x = 0.0;
gMovingRect.origin.y = 0.0;
gMovingRect.size = [gBOINC_Logo size];
if (gMovingRect.size.width < TEXTBOXMINWIDTH) {
gImageXIndent = (TEXTBOXMINWIDTH - gMovingRect.size.width) / 2;
gMovingRect.size.width = TEXTBOXMINWIDTH;
} else {
gImageXIndent = 0.0;
}
gTextBoxHeight = MINTEXTBOXHEIGHT;
gMovingRect.size.height += gTextBoxHeight;
gCurrentPosition.x = SAFETYBORDER + 1;
gCurrentPosition.y = SAFETYBORDER + 1 + gTextBoxHeight;
gCurrentDelta.x = 1.0;
gCurrentDelta.y = 1.0;
gActualTextBoxHeight = MINTEXTBOXHEIGHT;
[ self setAnimationTimeInterval:1/8.0 ];
}
}
// Path to our copy of switcher utility application in this screensaver bundle
if (gPathToBundleResources == NULL) {
gPathToBundleResources = [ myBundle resourcePath ];
}
[ super startAnimation ];
if ( [ self isPreview ] ) {
[ self setAnimationTimeInterval:1.0/8.0 ];
return;
}
newFrequency = startBOINCSaver();
if (newFrequency)
[ self setAnimationTimeInterval:1.0/newFrequency ];
gSS_StartTime = getDTime();
}
// If there are multiple displays, this may get called
// multiple times (once for each display), so we need to guard
// against any problems that may cause.
- (void)stopAnimation {
[ super stopAnimation ];
if ( ! [ self isPreview ] ) {
closeBOINCSaver();
}
gTopWindowListIndex = -1;
if (gBOINC_Logo) {
[ gBOINC_Logo release ];
}
gBOINC_Logo = NULL;
// gPathToBundleResources has been released by autorelease
gPathToBundleResources = NULL;
}
// If there are multiple displays, this may get called
// multiple times (once for each display), so we need to guard
// against any problems that may cause.
- (void)drawRect:(NSRect)rect {
[ super drawRect:rect ];
// optionally draw here
}
// If there are multiple displays, this may get called
// multiple times (once for each display), so we need to guard
// against any problems that may cause.
- (void)animateOneFrame {
int newFrequency = 0;
int coveredFreq = 0;
NSRect theFrame = [ self frame ];
NSInteger myWindowNumber;
NSInteger windowList[20];
NSInteger i, n;
NSRect currentDrawingRect, eraseRect;
NSPoint imagePosition;
char *msg;
CFStringRef cf_msg;
AbsoluteTime timeToUnblock, frameStartTime = UpTime();
kern_return_t kernResult = kIOReturnError;
UInt64 params;
IOByteCount rcnt = sizeof(UInt64);
double idleTime = 0;
HIThemeTextInfo textInfo;
if ([ self isPreview ]) {
#if 1 // Currently drawRect just draws our logo in the preview window
NSString *fileName = [[ NSBundle bundleForClass:[ self class ]] pathForImageResource:@"boinc" ];
if (fileName) {
NSImage *myImage = [[ NSImage alloc ] initWithContentsOfFile:fileName ];
[ myImage setScalesWhenResized:YES ];
[ myImage setSize:theFrame.size ];
[ myImage drawAtPoint:NSZeroPoint fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1.0 ];
[ myImage release ];
}
[ self setAnimationTimeInterval:1/1.0 ];
#else // Code for possible future use if we want to draw more in preview
myContext = [[NSGraphicsContext currentContext] graphicsPort];
drawPreview(myContext);
[ self setAnimationTimeInterval:1/30.0 ];
#endif
return;
}
// For unkown reasons, OS 10.7 Lion screensaver delays several seconds after
// user activity before calling stopAnimation, so we check user activity here
if ((gSystemVersion >= 0x1070) && ((getDTime() - gSS_StartTime) > 2.0)) {
kernResult = IOHIDGetParameter( gEventHandle, CFSTR(EVSIOIDLE), sizeof(UInt64), &params, &rcnt );
if ( kernResult == kIOReturnSuccess ) {
idleTime = ((double)params) / 1000.0 / 1000.0 / 1000.0;
if (idleTime < 1.5) {
[ self stopAnimation ];
}
}
}
myContext = [[NSGraphicsContext currentContext] graphicsPort];
// [myContext retain];
NSWindow *myWindow = [ self window ];
NSRect windowFrame = [ myWindow frame ];
if ( (windowFrame.origin.x != 0) || (windowFrame.origin.y != 0) ) {
// Hide window on second display to aid in debugging
#ifdef _DEBUG
[ myWindow setLevel:kCGMinimumWindowLevel ];
NSInteger alpha = 0;
[ myWindow setAlphaValue:alpha ]; // For OS 10.6
#endif
return; // We draw only to main screen
}
NSRect viewBounds = [self bounds];
newFrequency = getSSMessage(&msg, &coveredFreq);
// NOTE: My tests seem to confirm that the top window is always the first
// window returned by NSWindowList under OS 10.5 and the second window
// returned by NSWindowList under OS 10.3.9 and OS 10.4. However, Apple's
// documentation is unclear whether we can depend on this. So I have
// added some safety by doing two things:
// [1] Only use the NSWindowList test when we have started project graphics.
// [2] Assume that our window is covered 45 seconds after starting project
// graphics even if the NSWindowList test did not indicate that is so.
//
// getSSMessage() returns a non-zero value for coveredFreq only if we have started
// project graphics.
//
// If we should use a different frequency when our window is covered by another
// window, then check whether there is a window at a higher z-level than ours.
// Assuming our window(s) are initially the top window(s),
// determine our position in the window list when no graphics
// applications have covered us.
if (gTopWindowListIndex < 0) {
myWindowNumber = [ myWindow windowNumber ];
NSWindowList(20, windowList);
NSCountWindows(&n);
if (n > 20) n = 20;
for (i=0; i<n; i++) {
if (windowList[i] == myWindowNumber) {
gTopWindowListIndex = i;
break;
}
}
}
if (coveredFreq) {
if ( (msg != NULL) && (msg[0] != '\0') ) {
myWindowNumber = [ myWindow windowNumber ];
windowList[0] = 0;
NSWindowList(20, windowList);
NSCountWindows(&n);
if (gTopWindowListIndex < n) {
if (windowList[gTopWindowListIndex] != myWindowNumber) {
// Project graphics application has a window open above ours
// Don't waste CPU cycles since our window is obscured by application graphics
newFrequency = coveredFreq;
msg = NULL;
windowIsCovered();
}
}
} else {
newFrequency = coveredFreq;
}
}
// Clear the previous drawing area
currentDrawingRect = gMovingRect;
currentDrawingRect.origin.x = (float) ((int)gCurrentPosition.x);
currentDrawingRect.origin.y += (float) ((int)gCurrentPosition.y - gTextBoxHeight);
if ( (msg != NULL) && (msg[0] != '\0') ) {
// Set direction of motion to "bounce" off edges of screen
if (currentDrawingRect.origin.x <= SAFETYBORDER) {
gCurrentDelta.x = (float)SSRandomIntBetween(MINDELTA, MAXDELTA) / 16.;
gCurrentDelta.y = (float)(SSRandomIntBetween(MINDELTA, MAXDELTA) * signof(gCurrentDelta.y)) / 16.;
}
if ( (currentDrawingRect.origin.x + currentDrawingRect.size.width) >=
(viewBounds.origin.x + viewBounds.size.width - SAFETYBORDER) ) {
gCurrentDelta.x = -(float)SSRandomIntBetween(MINDELTA, MAXDELTA) / 16.;
gCurrentDelta.y = (float)(SSRandomIntBetween(MINDELTA, MAXDELTA) * signof(gCurrentDelta.y)) / 16.;
}
if (currentDrawingRect.origin.y + gTextBoxHeight - gActualTextBoxHeight <= SAFETYBORDER) {
gCurrentDelta.y = (float)SSRandomIntBetween(MINDELTA, MAXDELTA) / 16.;
gCurrentDelta.x = (float)(SSRandomIntBetween(MINDELTA, MAXDELTA) * signof(gCurrentDelta.x)) / 16.;
}
if ( (currentDrawingRect.origin.y + currentDrawingRect.size.height) >=
(viewBounds.origin.y + viewBounds.size.height - SAFETYBORDER) ) {
gCurrentDelta.y = -(float)SSRandomIntBetween(MINDELTA, MAXDELTA) / 16.;
gCurrentDelta.x = (float)(SSRandomIntBetween(MINDELTA, MAXDELTA) * signof(gCurrentDelta.x)) / 16.;
}
#if 0
// For testing
gCurrentDelta.x = 0;
gCurrentDelta.y = 0;
#endif
if (!isErased) {
[[NSColor blackColor] set];
// Erasing only 2 small rectangles reduces screensaver's CPU usage by about 25%
imagePosition.x = (float) ((int)gCurrentPosition.x + gImageXIndent);
imagePosition.y = (float) (int)gCurrentPosition.y;
eraseRect.origin.y = imagePosition.y;
eraseRect.size.height = currentDrawingRect.size.height - gTextBoxHeight;
if (gCurrentDelta.x > 0) {
eraseRect.origin.x = imagePosition.x - 1;
eraseRect.size.width = gCurrentDelta.x + 1;
} else {
eraseRect.origin.x = currentDrawingRect.origin.x + currentDrawingRect.size.width - gImageXIndent + gCurrentDelta.x - 1;
eraseRect.size.width = -gCurrentDelta.x + 1;
}
eraseRect = NSInsetRect(eraseRect, -1, -1);
NSRectFill(eraseRect);
eraseRect.origin.x = imagePosition.x;
eraseRect.size.width = currentDrawingRect.size.width - gImageXIndent - gImageXIndent;
if (gCurrentDelta.y > 0) {
eraseRect.origin.y = imagePosition.y;
eraseRect.size.height = gCurrentDelta.y + 1;
} else {
eraseRect.origin.y = imagePosition.y + currentDrawingRect.size.height - gTextBoxHeight - 1;
eraseRect.size.height = -gCurrentDelta.y + 1;
}
eraseRect = NSInsetRect(eraseRect, -1, -1);
NSRectFill(eraseRect);
eraseRect = currentDrawingRect;
eraseRect.size.height = gTextBoxHeight;
eraseRect = NSInsetRect(eraseRect, -1, -1);
NSRectFill(eraseRect);
isErased = true;
}
// Get the new drawing area
gCurrentPosition.x += gCurrentDelta.x;
gCurrentPosition.y += gCurrentDelta.y;
imagePosition.x = (float) ((int)gCurrentPosition.x + gImageXIndent);
imagePosition.y = (float) (int)gCurrentPosition.y;
[ gBOINC_Logo drawAtPoint:imagePosition fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0 ];
if ( (msg != NULL) && (msg[0] != '\0') ) {
cf_msg = CFStringCreateWithCString(NULL, msg, kCFStringEncodingMacRoman);
CGRect bounds = CGRectMake((float) ((int)gCurrentPosition.x),
viewBounds.size.height - imagePosition.y + TEXTBOXTOPBORDER,
gMovingRect.size.width,
MAXTEXTBOXHEIGHT
);
CGContextSaveGState (myContext);
CGContextTranslateCTM (myContext, 0, viewBounds.origin.y + viewBounds.size.height);
CGContextScaleCTM (myContext, 1.0f, -1.0f);
if (gSystemVersion >= 0x1050) {
CTFontRef myFont = CTFontCreateWithName(CFSTR("Helvetica"), 20, NULL);
HIThemeTextInfo theTextInfo = {kHIThemeTextInfoVersionOne, kThemeStateActive, kThemeSpecifiedFont,
kHIThemeTextHorizontalFlushLeft, kHIThemeTextVerticalFlushTop,
kHIThemeTextBoxOptionNone, kHIThemeTextTruncationNone, 0, false,
0, myFont
};
textInfo = theTextInfo;
} else {
#ifndef __x86_64__
GrafPtr port;
GetPort(&port);
SetPortTextFont(port, kHelveticaFontID);
SetPortTextSize(port, 20);
HIThemeTextInfo theTextInfo = {0, kThemeStateActive, kThemeCurrentPortFont, //kThemeMenuItemCmdKeyFont, //kThemePushButtonFont,
kHIThemeTextHorizontalFlushLeft, kHIThemeTextVerticalFlushTop,
kHIThemeTextBoxOptionNone, kHIThemeTextTruncationNone, 0, false
};
textInfo = theTextInfo;
#endif
}
HIThemeGetTextDimensions(cf_msg, (float)gMovingRect.size.width, &textInfo, NULL, &gActualTextBoxHeight, NULL);
gActualTextBoxHeight += TEXTBOXTOPBORDER;
// Use only APIs available in Mac OS 10.3.9
// HIThemeSetTextFill(kThemeTextColorWhite, NULL, myContext, kHIThemeOrientationNormal);
// SetThemeTextColor(kThemeTextColorWhite, 32, true);
CGFloat myWhiteComponents[] = {1.0, 1.0, 1.0, 1.0};
CGColorSpaceRef myColorSpace = CGColorSpaceCreateDeviceRGB ();
CGColorRef myTextColor = CGColorCreate(myColorSpace, myWhiteComponents);
CGContextSetFillColorWithColor(myContext, myTextColor);
HIThemeDrawTextBox(cf_msg, &bounds, &textInfo, myContext, kHIThemeOrientationNormal);
CGColorRelease(myTextColor);
CGColorSpaceRelease(myColorSpace);
CGContextRestoreGState (myContext);
CFRelease(cf_msg);
}
gTextBoxHeight = MAXTEXTBOXHEIGHT + TEXTBOXTOPBORDER;
gMovingRect.size.height = [gBOINC_Logo size].height + gTextBoxHeight;
isErased = false;
} else { // Empty or NULL message
if (!isErased) {
eraseRect = NSInsetRect(currentDrawingRect, -1, -1);
[[NSColor blackColor] set];
isErased = true;
NSRectFill(eraseRect);
gTextBoxHeight = MAXTEXTBOXHEIGHT;
gMovingRect.size.height = [gBOINC_Logo size].height + gTextBoxHeight;
}
}
if (newFrequency) {
[ self setAnimationTimeInterval:(1.0/newFrequency) ];
// setAnimationTimeInterval does not seem to be working, so we
// throttle the screensaver directly here.
timeToUnblock = AddDurationToAbsolute(durationSecond/newFrequency, frameStartTime);
MPDelayUntil(&timeToUnblock);
}
}
- (BOOL)hasConfigureSheet {
return YES;
}
// Display the configuration sheet for the user to choose their settings
- (NSWindow*)configureSheet
{
int period;
// if we haven't loaded our configure sheet, load the nib named MyScreenSaver.nib
if (!mConfigureSheet)
[ NSBundle loadNibNamed:@"BOINCSaver" owner:self ];
// set the UI state
[ mGoToBlankCheckbox setState:gGoToBlank ];
mBlankingTimeString = [[ NSString alloc ] initWithFormat:@"%d", gBlankingTime ];
[ mBlankingTimeTextField setStringValue:mBlankingTimeString ];
period = getGFXDefaultPeriod() / 60;
mDefaultPeriodString = [[ NSString alloc ] initWithFormat:@"%d", period ];
[ mDefaultPeriodTextField setStringValue:mDefaultPeriodString ];
period = getGFXSciencePeriod() / 60;
mSciencePeriodString = [[ NSString alloc ] initWithFormat:@"%d", period ];
[ mSciencePeriodTextField setStringValue:mSciencePeriodString ];
period = getGGFXChangePeriod() / 60;
mChangePeriodString = [[ NSString alloc ] initWithFormat:@"%d", period ];
[ mChangePeriodTextField setStringValue:mChangePeriodString ];
return mConfigureSheet;
}
// Called when the user clicked the SAVE button
- (IBAction) closeSheetSave:(id) sender
{
int period;
// get the defaults
ScreenSaverDefaults *defaults = [ ScreenSaverDefaults defaultsForModuleWithName:mBundleID ];
// save the UI state
gGoToBlank = [ mGoToBlankCheckbox state ];
mBlankingTimeString = [ mBlankingTimeTextField stringValue ];
gBlankingTime = [ mBlankingTimeString intValue ];
if ((gBlankingTime < 0) || (gBlankingTime > 999)) goto Bad;
mDefaultPeriodString = [ mDefaultPeriodTextField stringValue ];
period = [ mDefaultPeriodString intValue ];
if (!validateNumericString((CFStringRef)mDefaultPeriodString)) goto Bad;
if ((period < 0) || (period > 999)) goto Bad;
setGFXDefaultPeriod((double)(period * 60));
mSciencePeriodString = [ mSciencePeriodTextField stringValue ];
period = [ mSciencePeriodString intValue ];
if (!validateNumericString((CFStringRef)mSciencePeriodString)) goto Bad;
if ((period < 0) || (period > 999)) goto Bad;
setGFXSciencePeriod((double)(period * 60));
mChangePeriodString = [ mChangePeriodTextField stringValue ];
period = [ mChangePeriodString intValue ];
if (!validateNumericString((CFStringRef)mChangePeriodString)) goto Bad;
if ((period < 0) || (period > 999)) goto Bad;
setGGFXChangePeriod((double)(period * 60));
// write the defaults
[ defaults setInteger:gGoToBlank forKey:@"GoToBlank" ];
[ defaults setInteger:gBlankingTime forKey:@"BlankingTime" ];
period = getGFXDefaultPeriod() / 60;
[ defaults setInteger:period forKey:@"DefaultPeriod" ];
period = getGFXSciencePeriod() / 60;
[ defaults setInteger:period forKey:@"SciencePeriod" ];
period = getGGFXChangePeriod() / 60;
[ defaults setInteger:period forKey:@"ChangePeriod" ];
// synchronize
[ defaults synchronize ];
// end the sheet
[ NSApp endSheet:mConfigureSheet ];
return;
Bad:
; // Empty statement is needed to prevent compiler error
NSAlert *alert = [[[NSAlert alloc] init] autorelease];
[alert addButtonWithTitle:@"OK"];
[alert setMessageText:@"Please enter a number between 0 and 999."];
[alert setAlertStyle:NSCriticalAlertStyle];
[alert beginSheetModalForWindow:mConfigureSheet modalDelegate:self didEndSelector:nil contextInfo:nil];
}
// Called when the user clicked the CANCEL button
- (IBAction) closeSheetCancel:(id) sender
{
// nothing to configure
[ NSApp endSheet:mConfigureSheet ];
}
@end
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