bool ResTable_config::isMoreSpecificThan()

in libresource/ResourceTypes.cpp [2045:2179]
110 lines of code
83 McCabe index (conditional complexity)

bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
    // The order of the following tests defines the importance of one
    // configuration parameter over another.  Those tests first are more
    // important, trumping any values in those following them.
    if (imsi || o.imsi) {
        if (mcc != o.mcc) {
            if (!mcc) return false;
            if (!o.mcc) return true;
        }

        if (mnc != o.mnc) {
            if (!mnc) return false;
            if (!o.mnc) return true;
        }
    }

    if (locale || o.locale) {
        const int diff = isLocaleMoreSpecificThan(o);
        if (diff < 0) {
            return false;
        }

        if (diff > 0) {
            return true;
        }
    }

    if (screenLayout || o.screenLayout) {
        if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
            if (!(screenLayout & MASK_LAYOUTDIR)) return false;
            if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
        }
    }

    if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
            if (!smallestScreenWidthDp) return false;
            if (!o.smallestScreenWidthDp) return true;
        }
    }

    if (screenSizeDp || o.screenSizeDp) {
        if (screenWidthDp != o.screenWidthDp) {
            if (!screenWidthDp) return false;
            if (!o.screenWidthDp) return true;
        }

        if (screenHeightDp != o.screenHeightDp) {
            if (!screenHeightDp) return false;
            if (!o.screenHeightDp) return true;
        }
    }

    if (screenLayout || o.screenLayout) {
        if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
            if (!(screenLayout & MASK_SCREENSIZE)) return false;
            if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
        }
        if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
            if (!(screenLayout & MASK_SCREENLONG)) return false;
            if (!(o.screenLayout & MASK_SCREENLONG)) return true;
        }
    }

    if (orientation != o.orientation) {
        if (!orientation) return false;
        if (!o.orientation) return true;
    }

    if (uiMode || o.uiMode) {
        if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
            if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
            if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
        }
        if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
            if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
            if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
        }
    }

    // density is never 'more specific'
    // as the default just equals 160

    if (touchscreen != o.touchscreen) {
        if (!touchscreen) return false;
        if (!o.touchscreen) return true;
    }

    if (input || o.input) {
        if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
            if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
            if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
        }

        if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
            if (!(inputFlags & MASK_NAVHIDDEN)) return false;
            if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
        }

        if (keyboard != o.keyboard) {
            if (!keyboard) return false;
            if (!o.keyboard) return true;
        }

        if (navigation != o.navigation) {
            if (!navigation) return false;
            if (!o.navigation) return true;
        }
    }

    if (screenSize || o.screenSize) {
        if (screenWidth != o.screenWidth) {
            if (!screenWidth) return false;
            if (!o.screenWidth) return true;
        }

        if (screenHeight != o.screenHeight) {
            if (!screenHeight) return false;
            if (!o.screenHeight) return true;
        }
    }

    if (version || o.version) {
        if (sdkVersion != o.sdkVersion) {
            if (!sdkVersion) return false;
            if (!o.sdkVersion) return true;
        }

        if (minorVersion != o.minorVersion) {
            if (!minorVersion) return false;
            if (!o.minorVersion) return true;
        }
    }
    return false;
}