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author | Adam Cohen <adamcohen@google.com> | 2011-04-15 13:31:42 -0700 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2011-04-15 13:31:42 -0700 |
commit | 8a71ca86b2cd106540d407c42e6579775e429a58 (patch) | |
tree | f68f54656fd15d5a8aae8285cb4b5793b056bcdc /src/com/android/launcher2/CellLayout.java | |
parent | b1c8befb2fc25e1a3c08d07bcea300fd22ede4e3 (diff) | |
parent | e3e27a854f3eca363d3c5ce353d19de475272d87 (diff) | |
download | android_packages_apps_Trebuchet-8a71ca86b2cd106540d407c42e6579775e429a58.tar.gz android_packages_apps_Trebuchet-8a71ca86b2cd106540d407c42e6579775e429a58.tar.bz2 android_packages_apps_Trebuchet-8a71ca86b2cd106540d407c42e6579775e429a58.zip |
Merge "Cleaning up drag and drop visulization and drop location determination"
Diffstat (limited to 'src/com/android/launcher2/CellLayout.java')
-rw-r--r-- | src/com/android/launcher2/CellLayout.java | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/com/android/launcher2/CellLayout.java b/src/com/android/launcher2/CellLayout.java index dd0c58ad2..ac1a4bde3 100644 --- a/src/com/android/launcher2/CellLayout.java +++ b/src/com/android/launcher2/CellLayout.java @@ -736,6 +736,22 @@ public class CellLayout extends ViewGroup { result[1] = vStartPadding + cellY * (mCellHeight + mHeightGap); } + /** + * Given a cell coordinate, return the point that represents the upper left corner of that cell + * + * @param cellX X coordinate of the cell + * @param cellY Y coordinate of the cell + * + * @param result Array of 2 ints to hold the x and y coordinate of the point + */ + void cellToCenterPoint(int cellX, int cellY, int[] result) { + final int hStartPadding = getLeftPadding(); + final int vStartPadding = getTopPadding(); + + result[0] = hStartPadding + cellX * (mCellWidth + mWidthGap) + mCellWidth / 2; + result[1] = vStartPadding + cellY * (mCellHeight + mHeightGap) + mCellHeight / 2; + } + int getCellWidth() { return mCellWidth; } @@ -1021,6 +1037,12 @@ public class CellLayout extends ViewGroup { // mark space take by ignoreView as available (method checks if ignoreView is null) markCellsAsUnoccupiedForView(ignoreView); + // For items with a spanX / spanY > 1, the passed in point (pixelX, pixelY) corresponds + // to the center of the item, but we are searching based on the top-left cell, so + // we translate the point over to correspond to the top-left. + pixelX -= (mCellWidth + mWidthGap) * (spanX - 1) / 2f; + pixelY -= (mCellHeight + mHeightGap) * (spanY - 1) / 2f; + // Keep track of best-scoring drop area final int[] bestXY = result != null ? result : new int[2]; double bestDistance = Double.MAX_VALUE; @@ -1045,7 +1067,7 @@ public class CellLayout extends ViewGroup { } } final int[] cellXY = mTmpCellXY; - cellToPoint(x, y, cellXY); + cellToCenterPoint(x, y, cellXY); double distance = Math.sqrt(Math.pow(cellXY[0] - pixelX, 2) + Math.pow(cellXY[1] - pixelY, 2)); |