615 * Links this native object with its java Win32GraphicsDevice.
616 * Need this link because the colorModel of the java device
617 * may be updated from native code.
618 */
619 void AwtWin32GraphicsDevice::SetJavaDevice(JNIEnv *env, jobject objPtr)
620 {
621 javaDevice = env->NewWeakGlobalRef(objPtr);
622 }
623
624 /**
625 * Sets horizontal and vertical scale factors
626 */
627 void AwtWin32GraphicsDevice::SetScale(float sx, float sy)
628 {
629 scaleX = sx;
630 scaleY = sy;
631 }
632
633 int AwtWin32GraphicsDevice::ScaleUpX(int x)
634 {
635 return CheckIntLimits(x * scaleX);
636 }
637
638 int AwtWin32GraphicsDevice::ScaleUpY(int y)
639 {
640 return CheckIntLimits(y * scaleY);
641 }
642
643 int AwtWin32GraphicsDevice::ScaleDownX(int x)
644 {
645 return CheckIntLimits(x / scaleX);
646 }
647
648 int AwtWin32GraphicsDevice::ScaleDownY(int y)
649 {
650 return CheckIntLimits(y / scaleY);
651 }
652
653 int AwtWin32GraphicsDevice::CheckIntLimits(double value)
654 {
655 if (value < INT_MIN)
656 {
657 return INT_MIN;
658 }
659
660 if (value > INT_MAX)
661 {
662 return INT_MAX;
663 }
664
665 return (int)ceil(value);
666 }
667
668 void AwtWin32GraphicsDevice::InitDesktopScales()
669 {
670 float dpiX = -1.0f;
671 float dpiY = -1.0f;
672 GetScreenDpi(GetMonitor(), &dpiX, &dpiY);
673 if (dpiX > 0 && dpiY > 0) {
674 SetScale(dpiX / 96, dpiY / 96);
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615 * Links this native object with its java Win32GraphicsDevice.
616 * Need this link because the colorModel of the java device
617 * may be updated from native code.
618 */
619 void AwtWin32GraphicsDevice::SetJavaDevice(JNIEnv *env, jobject objPtr)
620 {
621 javaDevice = env->NewWeakGlobalRef(objPtr);
622 }
623
624 /**
625 * Sets horizontal and vertical scale factors
626 */
627 void AwtWin32GraphicsDevice::SetScale(float sx, float sy)
628 {
629 scaleX = sx;
630 scaleY = sy;
631 }
632
633 int AwtWin32GraphicsDevice::ScaleUpX(int x)
634 {
635 return ClipRound(x * scaleX);
636 }
637
638 int AwtWin32GraphicsDevice::ScaleUpY(int y)
639 {
640 return ClipRound(y * scaleY);
641 }
642
643 int AwtWin32GraphicsDevice::ScaleDownX(int x)
644 {
645 return ClipRound(x / scaleX);
646 }
647
648 int AwtWin32GraphicsDevice::ScaleDownY(int y)
649 {
650 return ClipRound(y / scaleY);
651 }
652
653 int AwtWin32GraphicsDevice::ClipRound(double value)
654 {
655 value -= 0.5;
656 if (value < INT_MIN)
657 {
658 return INT_MIN;
659 }
660
661 if (value > INT_MAX)
662 {
663 return INT_MAX;
664 }
665
666 return (int)ceil(value);
667 }
668
669 void AwtWin32GraphicsDevice::InitDesktopScales()
670 {
671 float dpiX = -1.0f;
672 float dpiY = -1.0f;
673 GetScreenDpi(GetMonitor(), &dpiX, &dpiY);
674 if (dpiX > 0 && dpiY > 0) {
675 SetScale(dpiX / 96, dpiY / 96);
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