@Override
protected void draw(Canvas c, MapView osmv, boolean shadow) {
if (DEBUGMODE) {
Log.d(IMapView.LOGTAG, "onDraw(" + shadow + ")");
}
if (shadow) {
return;
}
Projection projection = osmv.getProjection();
// Get the area we are drawing to
Rect screenRect = projection.getScreenRect();
// No overflow detected here! Log.d(IMapView.LOGTAG, "BEFORE Rect is " + screenRect.toString() +
// mTopLeftMercator.toString());
projection.toMercatorPixels(screenRect.left, screenRect.top, mTopLeftMercator);
projection.toMercatorPixels(screenRect.right, screenRect.bottom, mBottomRightMercator);
// No overflow detected here! Log.d(IMapView.LOGTAG, "AFTER Rect is " + screenRect.toString() +
// mTopLeftMercator.toString() + mBottomRightMercator.toString());
mViewPort.set(
mTopLeftMercator.x, mTopLeftMercator.y, mBottomRightMercator.x, mBottomRightMercator.y);
// No overflow detected here! Log.d(IMapView.LOGTAG, "AFTER Rect is " + mViewPort.toString());
// Draw the tiles!
drawTiles(c, projection, projection.getZoomLevel(), TileSystem.getTileSize(), mViewPort);
}
@Override
protected void draw(final Canvas pC, final MapView pOsmv, final boolean shadow) {
if (shadow) {
return;
}
// Don't draw if we are animating
if (pOsmv.isAnimating()) {
return;
}
// Calculate the half-world size
final Projection projection = pOsmv.getProjection();
final int zoomLevel = projection.getZoomLevel();
mWorldSize_2 = TileSystem.MapSize(zoomLevel) / 2;
// Save the Mercator coordinates of what is on the screen
mViewportRect.set(projection.getScreenRect());
mViewportRect.offset(mWorldSize_2, mWorldSize_2);
// Start calculating the tile area with the current viewport
mTileArea.set(mViewportRect);
// Get the target zoom level difference.
int miniMapZoomLevelDifference = getZoomDifference();
// Make sure the zoom level difference isn't below the minimum zoom level
if (zoomLevel - getZoomDifference() < mTileProvider.getMinimumZoomLevel()) {
miniMapZoomLevelDifference +=
zoomLevel - getZoomDifference() - mTileProvider.getMinimumZoomLevel();
}
// Shift the screen coordinates into the target zoom level
mTileArea.set(
mTileArea.left >> miniMapZoomLevelDifference,
mTileArea.top >> miniMapZoomLevelDifference,
mTileArea.right >> miniMapZoomLevelDifference,
mTileArea.bottom >> miniMapZoomLevelDifference);
// Limit the area we are interested in for tiles to be the MAP_WIDTH by MAP_HEIGHT and
// centered on the center of the screen
mTileArea.set(
mTileArea.centerX() - (getWidth() / 2),
mTileArea.centerY() - (getHeight() / 2),
mTileArea.centerX() + (getWidth() / 2),
mTileArea.centerY() + (getHeight() / 2));
// Get the area where we will draw the minimap in screen coordinates
mMiniMapCanvasRect.set(
mViewportRect.right - getPadding() - getWidth(),
mViewportRect.bottom - getPadding() - getHeight(),
mViewportRect.right - getPadding(),
mViewportRect.bottom - getPadding());
mMiniMapCanvasRect.offset(-mWorldSize_2, -mWorldSize_2);
// Draw a solid background where the minimap will be drawn with a 2 pixel inset
pC.drawRect(
mMiniMapCanvasRect.left - 2,
mMiniMapCanvasRect.top - 2,
mMiniMapCanvasRect.right + 2,
mMiniMapCanvasRect.bottom + 2,
mPaint);
super.drawTiles(
pC,
projection.getZoomLevel() - miniMapZoomLevelDifference,
TileSystem.getTileSize(),
mTileArea);
}
