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标题: android修改输入法旋转和半屏的方法 [打印本页]

作者: zangcf 时间: 2016-5-8 16:43
标题: android修改输入法旋转和半屏的方法
/media/doraemon/works/android/mtk/6735/b2/alps_ok/frameworks/native/services/inputflinger/InputReader.cpp：：：：：：：：：：
void TouchInputMapper::configureSurface(nsecs_t when, bool* outResetNeeded) {
int32_t oldDeviceMode = mDeviceMode;

// Determine device mode.
if (mParameters.deviceType == Parameters:

EVICE_TYPE_POINTER
         && mConfig.pointerGesturesEnabled) {
      mSource = AINPUT_SOURCE_MOUSE;
      mDeviceMode = DEVICE_MODE_POINTER;
      if (hasStylus()) {
         mSource |= AINPUT_SOURCE_STYLUS;
      }
} else if (mParameters.deviceType == Parameters:

EVICE_TYPE_TOUCH_SCREEN
         && mParameters.hasAssociatedDisplay) {
      mSource = AINPUT_SOURCE_TOUCHSCREEN;
      mDeviceMode = DEVICE_MODE_DIRECT;
      if (hasStylus()) {
         mSource |= AINPUT_SOURCE_STYLUS;
      }
} else if (mParameters.deviceType == Parameters:

EVICE_TYPE_TOUCH_NAVIGATION) {
      mSource = AINPUT_SOURCE_TOUCH_NAVIGATION;
      mDeviceMode = DEVICE_MODE_NAVIGATION;
} else {
      mSource = AINPUT_SOURCE_TOUCHPAD;
      mDeviceMode = DEVICE_MODE_UNSCALED;
}

// Ensure we have valid X and Y axes.
if (!mRawPointerAxes.x.valid || !mRawPointerAxes.y.valid) {
      ALOGW(INDENT "Touch device '%s' did not report support for X or Y axis!  "
            "The device will be inoperable.", getDeviceName().string());
      mDeviceMode = DEVICE_MODE_DISABLED;
      return;
}

// Raw width and height in the natural orientation.
int32_t rawWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1;
int32_t rawHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1;

// Get associated display dimensions.
DisplayViewport newViewport;
if (mParameters.hasAssociatedDisplay) {
      if (!mConfig.getDisplayInfo(mParameters.associatedDisplayIsExternal, &newViewport)) {
         ALOGI(INDENT "Touch device '%s' could not query the properties of its associated "
                  "display.  The device will be inoperable until the display size "
                  "becomes available.",
                  getDeviceName().string());
         mDeviceMode = DEVICE_MODE_DISABLED;
         return;
      }
} else {
      newViewport.setNonDisplayViewport(rawWidth, rawHeight);
}
bool viewportChanged = mViewport != newViewport;
if (viewportChanged) {
      mViewport = newViewport;

      if (mDeviceMode == DEVICE_MODE_DIRECT || mDeviceMode == DEVICE_MODE_POINTER) {
         // Convert rotated viewport to natural surface coordinates.
         int32_t naturalLogicalWidth, naturalLogicalHeight;
         int32_t naturalPhysicalWidth, naturalPhysicalHeight;
         int32_t naturalPhysicalLeft, naturalPhysicalTop;
         int32_t naturalDeviceWidth, naturalDeviceHeight;
         switch (mViewport.orientation) {
         case DISPLAY_ORIENTATION_90:
            naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop;
            naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft;
            naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop;
            naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft;
            naturalPhysicalLeft = mViewport.deviceHeight - mViewport.physicalBottom;
            naturalPhysicalTop = mViewport.physicalLeft;
            naturalDeviceWidth = mViewport.deviceHeight;
            naturalDeviceHeight = mViewport.deviceWidth;
            break;
         case DISPLAY_ORIENTATION_180:
            naturalLogicalWidth = mViewport.logicalRight - mViewport.logicalLeft;
            naturalLogicalHeight = mViewport.logicalBottom - mViewport.logicalTop;
            naturalPhysicalWidth = mViewport.physicalRight - mViewport.physicalLeft;
            naturalPhysicalHeight = mViewport.physicalBottom - mViewport.physicalTop;
            naturalPhysicalLeft = mViewport.deviceWidth - mViewport.physicalRight;
            naturalPhysicalTop = mViewport.deviceHeight - mViewport.physicalBottom;
            naturalDeviceWidth = mViewport.deviceWidth;
            naturalDeviceHeight = mViewport.deviceHeight;
            break;
         case DISPLAY_ORIENTATION_270:
            naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop;
            naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft;
            naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop;
            naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft;
            naturalPhysicalLeft = mViewport.physicalTop;
            naturalPhysicalTop = mViewport.deviceWidth - mViewport.physicalRight;
            naturalDeviceWidth = mViewport.deviceHeight;
            naturalDeviceHeight = mViewport.deviceWidth;
            break;
         case DISPLAY_ORIENTATION_0:
         default:
            naturalLogicalWidth = mViewport.logicalRight - mViewport.logicalLeft;
            naturalLogicalHeight = mViewport.logicalBottom - mViewport.logicalTop;
            naturalPhysicalWidth = mViewport.physicalRight - mViewport.physicalLeft;
            naturalPhysicalHeight = mViewport.physicalBottom - mViewport.physicalTop;
            naturalPhysicalLeft = mViewport.physicalLeft;
            naturalPhysicalTop = mViewport.physicalTop;
            naturalDeviceWidth = mViewport.deviceWidth;
            naturalDeviceHeight = mViewport.deviceHeight;
            break;
         }

//zcfdebug++<<
            naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop;
            naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft;
            naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop;
            naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft;
            naturalPhysicalLeft = mViewport.deviceHeight - mViewport.physicalBottom;
            naturalPhysicalTop = mViewport.physicalLeft;
            naturalDeviceWidth = mViewport.deviceHeight;
            naturalDeviceHeight = mViewport.deviceWidth;
ALOGI("zcfdebug","naturalLogicalWidth is %d",naturalLogicalWidth);
ALOGI("zcfdebug","naturalLogicalHeight is %d",naturalLogicalHeight);
ALOGI("zcfdebug","naturalPhysicalWidth is %d",naturalPhysicalWidth);
ALOGI("zcfdebug","naturalPhysicalHeight is %d",naturalPhysicalHeight);
ALOGI("zcfdebug","naturalPhysicalLeft is %d",naturalPhysicalLeft);
ALOGI("zcfdebug","naturalPhysicalTop is %d",naturalPhysicalTop);
ALOGI("zcfdebug","naturalDeviceWidth is %d",naturalDeviceWidth);
ALOGI("zcfdebug","naturalDeviceHeight is %d",naturalDeviceHeight);
//zcfdebug>>++
         mSurfaceWidth = naturalLogicalWidth * naturalDeviceWidth / naturalPhysicalWidth;
         mSurfaceHeight = naturalLogicalHeight * naturalDeviceHeight / naturalPhysicalHeight;
mSurfaceHeight=mSurfaceHeight*2;
         mSurfaceLeft = naturalPhysicalLeft * naturalLogicalWidth / naturalPhysicalWidth;
         mSurfaceTop = naturalPhysicalTop * naturalLogicalHeight / naturalPhysicalHeight;

//zcfdebug--          mSurfaceOrientation = mParameters.orientationAware ?
//zcfdebug--                   mViewport.orientation : DISPLAY_ORIENTATION_0;
         mSurfaceOrientation = DISPLAY_ORIENTATION_90;//zcfdebug++
//zcfdebug--                   mViewport.orientation : DISPLAY_ORIENTATION_0;

      } else {
         mSurfaceWidth = rawWidth;
         mSurfaceHeight = rawHeight;
         mSurfaceLeft = 0;
         mSurfaceTop = 0;
         mSurfaceOrientation = DISPLAY_ORIENTATION_0;
      }
}

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