mirror of
https://github.com/gnustep/libs-gui.git
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Reimplemented column resizing
Implemented column reordering git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@10704 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Pierre-Yves Rivaille
parent
2defbf1411
commit
8a192b68b9
1 changed files with 331 additions and 181 deletions
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@ -41,11 +41,12 @@
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#include <AppKit/NSEvent.h>
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#include <AppKit/NSApplication.h>
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#include <AppKit/NSColor.h>
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#include <AppKit/NSScrollView.h>
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@interface NSTableView (GNUstepPrivate)
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- (void) _userResizedTableColumn: (int)index
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leftWidth: (float)lwidth
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rightWidth: (float)rwidth;
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width: (float)width;
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- (float *) _columnOrigins;
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@end
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@implementation NSTableHeaderView
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@ -222,10 +223,14 @@
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if (location.x >= NSMaxX (rect) - 1)
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{
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if (columnIndex != ([_tableView numberOfColumns] - 1))
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if (columnIndex != ([_tableView numberOfColumns]))
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{
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_resizedColumn = columnIndex;
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}
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else
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{
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NSLog(@"ohoh");
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}
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}
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else if (location.x <= NSMinX (rect) + 2)
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{
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@ -243,19 +248,24 @@
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/* Dragging limits */
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float minCoord;
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float maxCoord;
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float minAbsCoord;
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float maxAbsCoord;
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float minVisCoord;
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float maxVisCoord;
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NSRect tvRect;
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NSPoint unconverted;
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NSArray *columns;
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/* Column on the left of resizing bound */
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NSTableColumn *columnLow;
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NSTableColumn *column;
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NSRect rectLow = [self headerRectOfColumn: _resizedColumn];
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/* Column on the right of resizing bound */
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NSTableColumn *columnHigh;
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NSRect rectHigh = [self headerRectOfColumn: (_resizedColumn + 1)];
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/* Old highlighted rect, used to avoid useless redrawing */
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NSRect oldRect = NSZeroRect;
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/* Current highlighted rect */
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NSRect r;
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/* Mouse position */
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float p;
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float q;
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BOOL outside = NO;
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/* YES if some highlighting was done and needs to be undone */
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BOOL lit = NO;
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/* YES if some dragging was actually done - to avoid
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@ -263,39 +273,28 @@
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BOOL dragged = NO;
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NSEvent *e;
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NSDate *farAway = [NSDate distantFuture];
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unsigned int eventMask = NSLeftMouseUpMask | NSLeftMouseDraggedMask;
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unsigned int eventMask = NSLeftMouseUpMask | NSLeftMouseDraggedMask
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| NSPeriodicMask;
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/* Determine dragging limits, constrained to visible rect */
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rect = [self visibleRect];
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minCoord = MAX (NSMinX (rectLow), NSMinX (rect)) + divWidth;
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maxCoord = MIN (NSMaxX (rectHigh), NSMaxX (rect)) - divWidth;
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minVisCoord = MAX (NSMinX (rectLow), NSMinX (rect)) + divWidth;
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maxVisCoord = NSMaxX (rect) - divWidth;
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/* Then constrain to minimum and maximum column width if any */
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columns = [_tableView tableColumns];
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/* Column at the left */
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columnLow = [columns objectAtIndex: _resizedColumn];
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if ([columnLow isResizable] == NO)
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column = [columns objectAtIndex: _resizedColumn];
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if ([column isResizable] == NO)
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{
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return;
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}
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/* We use p as a temporary variable for a while */
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p = NSMinX (rectLow) + [columnLow minWidth];
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minCoord = MAX (p, minCoord);
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p = NSMinX (rectLow) + [columnLow maxWidth];
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maxCoord = MIN (p, maxCoord);
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/* Column at the right */
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columnHigh = [columns objectAtIndex: _resizedColumn + 1];
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if ([columnHigh isResizable] == NO)
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{
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return;
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}
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/* This is trickier - think to what happens at the column on
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the right when the user released the mouse somewhere */
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p = NSMaxX (rectHigh) - [columnHigh minWidth];
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maxCoord = MIN (p, maxCoord);
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p = NSMaxX (rectHigh) - [columnHigh maxWidth];
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minCoord = MAX (p, minCoord);
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minAbsCoord = NSMinX (rectLow) + [column minWidth];
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maxAbsCoord = NSMinX (rectLow) + [column maxWidth];
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minCoord = MAX (minAbsCoord, minVisCoord);
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maxCoord = MIN (maxAbsCoord, maxVisCoord);
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/* Do we need to check that we already fit into this area ?
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We should */
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@ -308,7 +307,8 @@
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r.size.width = divWidth;
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r.size.height = NSHeight (rect);
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r.origin.y = NSMinY (rect);
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[NSEvent startPeriodicEventsAfterDelay: 0.05 withPeriod: 0.05];
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e = [NSApp nextEventMatchingMask: eventMask
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untilDate: farAway
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inMode: NSEventTrackingRunLoopMode
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@ -321,34 +321,91 @@
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while ([e type] != NSLeftMouseUp)
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{
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dragged = YES;
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p = [self convertPoint: [e locationInWindow] fromView: nil].x;
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if (p < minCoord)
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if ([e type] != NSPeriodic)
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{
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p = minCoord;
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}
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if (p > maxCoord)
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{
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p = maxCoord;
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}
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r.origin.x = p - (divWidth / 2.);
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if (NSEqualRects(r, oldRect) == NO)
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{
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if (lit == YES)
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dragged = YES;
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unconverted = [e locationInWindow];
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p = [self convertPoint: unconverted fromView: nil].x;
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q = p;
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if (p > maxVisCoord || p < minVisCoord)
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{
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NSHighlightRect (oldRect);
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outside = YES;
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}
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else
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{
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outside = NO;
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}
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if (p < minCoord)
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{
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p = minCoord;
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}
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else if (p > maxCoord)
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{
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p = maxCoord;
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}
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r.origin.x = p - (divWidth / 2.);
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if (!outside && NSEqualRects(r, oldRect) == NO)
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{
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if (lit == YES)
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{
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NSHighlightRect (oldRect);
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}
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NSHighlightRect (r);
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lit = YES;
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oldRect = r;
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}
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}
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else
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{
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if (outside)
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{
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q = [self convertPoint: unconverted
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fromView: nil].x;
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if (lit)
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{
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NSHighlightRect (oldRect);
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lit = NO;
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}
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tvRect = [_tableView visibleRect];
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if (q > maxVisCoord)
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{
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if (q > maxAbsCoord + 5)
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q = maxAbsCoord + 5;
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tvRect.origin.x += (q - maxVisCoord)/2;
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}
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else if (q < minVisCoord)
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{
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if (q < minAbsCoord - 5)
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q = minAbsCoord - 5;
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tvRect.origin.x += (q - minVisCoord)/2;
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}
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else // TODO remove this condition
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{
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NSLog(@"not outside !");
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}
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[_tableView scrollPoint: tvRect.origin];
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rect = [self visibleRect];
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minVisCoord = NSMinX (rect) + divWidth;
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maxVisCoord = NSMaxX (rect) - divWidth;
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minCoord = MAX (minAbsCoord, minVisCoord);
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maxCoord = MIN (maxAbsCoord, maxVisCoord);
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}
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NSHighlightRect (r);
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lit = YES;
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oldRect = r;
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}
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e = [NSApp nextEventMatchingMask: eventMask
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untilDate: farAway
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inMode: NSEventTrackingRunLoopMode
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dequeue: YES];
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}
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[NSEvent stopPeriodicEvents];
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if (outside)
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{
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p = [self convertPoint: [e locationInWindow] fromView: nil].x;
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if (p > maxAbsCoord)
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p = maxAbsCoord;
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else if (p < minAbsCoord)
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p = minAbsCoord;
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}
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if (lit == YES)
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{
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NSHighlightRect(oldRect);
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@ -361,8 +418,7 @@
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if (dragged == YES)
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{
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[_tableView _userResizedTableColumn: _resizedColumn
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leftWidth: (p - NSMinX (rectLow))
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rightWidth: (NSMaxX (rectHigh) - p)];
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width: (p - NSMinX (rectLow))];
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}
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/* Clean up */
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@ -374,140 +430,234 @@
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/* Wait for mouse dragged events.
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If mouse is dragged, move the column.
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If mouse is not dragged but released, select/deselect the column. */
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{
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BOOL mouseDragged = NO;
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BOOL startedPeriodicEvents = NO;
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unsigned int eventMask = (NSLeftMouseUpMask
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| NSLeftMouseDraggedMask
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| NSPeriodicMask);
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unsigned int modifiers = [event modifierFlags];
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NSEvent *lastEvent;
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BOOL done = NO;
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NSPoint mouseLocationWin;
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NSDate *distantFuture = [NSDate distantFuture];
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NSRect visibleRect = [self convertRect: [self visibleRect]
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toView: nil];
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float minXVisible = NSMinX (visibleRect);
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float maxXVisible = NSMaxX (visibleRect);
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BOOL mouseLeft = NO;
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/* We have three zones of speed.
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0 - 50 pixels: period 0.2 <zone 1>
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50 - 100 pixels: period 0.1 <zone 2>
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100 - 150 pixels: period 0.01 <zone 3> */
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float oldPeriod = 0;
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inline float computePeriod ()
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{
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float distance = 0;
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if (mouseLocationWin.x < minXVisible)
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{
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distance = minXVisible - mouseLocationWin.x;
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}
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else if (mouseLocationWin.x > maxXVisible)
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{
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distance = mouseLocationWin.x - maxXVisible;
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}
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if (distance < 50)
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return 0.2;
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else if (distance < 100)
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return 0.1;
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else
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return 0.01;
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}
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while (done != YES)
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{
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lastEvent = [NSApp nextEventMatchingMask: eventMask
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untilDate: distantFuture
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inMode: NSEventTrackingRunLoopMode
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dequeue: YES];
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switch ([lastEvent type])
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{
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case NSLeftMouseUp:
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done = YES;
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break;
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case NSLeftMouseDragged:
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if (mouseDragged == NO)
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{
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// TODO: Deselect the column, prepare for dragging
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}
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mouseDragged = YES;
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mouseLocationWin = [lastEvent locationInWindow];
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if ((mouseLocationWin.x > minXVisible)
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&& (mouseLocationWin.x < maxXVisible))
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{
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NSPoint mouseLocationView;
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if (startedPeriodicEvents == YES)
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{
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[NSEvent stopPeriodicEvents];
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startedPeriodicEvents = NO;
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}
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mouseLocationView = [self convertPoint:
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mouseLocationWin
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fromView: nil];
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// TODO: drag the column
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//[_window flushWindow];
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// [nc postNotificationName:
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// object: self];
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}
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else /* Mouse dragged out of the table */
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{
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if (startedPeriodicEvents == YES)
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{
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/* Check - if the mouse did not change zone,
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we do nothing */
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if (computePeriod () == oldPeriod)
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break;
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[NSEvent stopPeriodicEvents];
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}
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/* Start periodic events */
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oldPeriod = computePeriod ();
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[NSEvent startPeriodicEventsAfterDelay: 0
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withPeriod: oldPeriod];
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startedPeriodicEvents = YES;
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if (mouseLocationWin.x <= minXVisible)
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mouseLeft = YES;
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else
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mouseLeft = NO;
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}
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break;
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case NSPeriodic:
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if (mouseLeft == YES) // mouse left the table
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{
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// TODO: Drag the column
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}
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else /* mouse right the table */
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{
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// TODO: Drag the column
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}
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// [nc postNotificationName:
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// object: self];
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break;
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default:
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break;
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}
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}
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if ([_tableView allowsColumnReordering])
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{
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int i = columnIndex;
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int j = columnIndex;
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float minCoord;
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float maxCoord;
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float minVisCoord;
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float maxVisCoord;
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float *_cO;
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float *_cO_minus1;
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int numberOfColumns = [_tableView numberOfColumns];
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unsigned int eventMask = (NSLeftMouseUpMask
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| NSLeftMouseDraggedMask
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| NSPeriodicMask);
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unsigned int modifiers = [event modifierFlags];
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NSEvent *e;
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NSDate *distantFuture = [NSDate distantFuture];
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NSRect visibleRect = [self visibleRect];
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NSRect tvRect;
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NSRect highlightRect, oldRect;
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BOOL outside = NO;
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BOOL lit = NO;
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if (mouseDragged == NO)
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BOOL mouseDragged = NO;
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float p;
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NSPoint unconverted;
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minVisCoord = NSMinX (visibleRect);
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maxVisCoord = NSMaxX (visibleRect);
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{
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NSRect bounds = [self bounds];
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minCoord = NSMinX(bounds);
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maxCoord = NSMaxX(bounds);
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}
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{
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float *_c = [_tableView _columnOrigins];
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_cO_minus1 = malloc((numberOfColumns + 3) * sizeof(float));
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_cO = _cO_minus1 + 1;
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memcpy(_cO, _c, numberOfColumns * sizeof(float));
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_cO[numberOfColumns] = maxCoord;
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_cO[numberOfColumns + 1] = maxCoord;
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_cO[-1] = minCoord;
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}
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highlightRect.size.height = NSHeight (visibleRect);
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highlightRect.origin.y = NSMinY (visibleRect);
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[self lockFocus];
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[[NSColor lightGrayColor] set];
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[NSEvent startPeriodicEventsAfterDelay: 0.05
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withPeriod: 0.05];
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e = [NSApp nextEventMatchingMask: eventMask
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untilDate: distantFuture
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inMode: NSEventTrackingRunLoopMode
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dequeue: YES];
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while ([e type] != NSLeftMouseUp)
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{
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switch ([e type])
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{
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case NSLeftMouseDragged:
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unconverted = [e locationInWindow];
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p = [self convertPoint: unconverted fromView: nil].x;
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if (mouseDragged == NO)
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{
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NSLog(@"TODO: Deselect the column");
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}
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mouseDragged = YES;
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if (p < minVisCoord || p > maxVisCoord)
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{
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outside = YES;
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}
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else
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{
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outside = NO;
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i = j;
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if (p > (_cO[i] + _cO[i+1]) / 2)
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{
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while (p > (_cO[i] + _cO[i+1]) / 2)
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i++;
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}
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else if (p < (_cO[i] + _cO[i-1]) / 2)
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{
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while (p < (_cO[i] + _cO[i-1]) / 2)
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i--;
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}
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if (i != columnIndex
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&& i != columnIndex + 1)
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{
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j = i;
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highlightRect.size.height = NSHeight (visibleRect);
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highlightRect.origin.y = NSMinY (visibleRect);
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highlightRect.size.width = 7;
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if (i == numberOfColumns)
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{
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highlightRect.origin.x = _cO[i] - 3;
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}
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else if (i == 0)
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{
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highlightRect.origin.x = _cO[i] - 3;
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}
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else
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{
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highlightRect.origin.x = _cO[i] - 3;
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}
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if (!NSEqualRects(highlightRect, oldRect))
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{
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if (lit)
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NSHighlightRect(oldRect);
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NSHighlightRect(highlightRect);
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}
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else if (!lit)
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{
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NSHighlightRect(highlightRect);
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}
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oldRect = highlightRect;
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lit = YES;
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}
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else
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{
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i = columnIndex;
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highlightRect.size.height = NSHeight (visibleRect);
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highlightRect.origin.y = NSMinY (visibleRect);
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highlightRect.origin.x = _cO[columnIndex];
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highlightRect.size.width =
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_cO[columnIndex + 1] - _cO[columnIndex];
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if (!NSEqualRects(highlightRect, oldRect))
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{
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if (lit)
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NSHighlightRect(oldRect);
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NSHighlightRect(highlightRect);
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}
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else if (!lit)
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{
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NSHighlightRect(highlightRect);
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}
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oldRect = highlightRect;
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lit = YES;
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}
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}
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break;
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case NSPeriodic:
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if (outside == YES)
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{
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if (lit)
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||||
{
|
||||
NSHighlightRect(oldRect);
|
||||
lit = NO;
|
||||
oldRect = NSZeroRect;
|
||||
}
|
||||
p = [self convertPoint: unconverted
|
||||
fromView: nil].x;
|
||||
tvRect = [_tableView visibleRect];
|
||||
if (p > maxVisCoord)
|
||||
{
|
||||
if (p > maxCoord)
|
||||
tvRect.origin.x += (p - maxVisCoord)/8;
|
||||
else
|
||||
tvRect.origin.x += (p - maxVisCoord)/2;
|
||||
}
|
||||
else if (p < minVisCoord)
|
||||
{
|
||||
if (p < minCoord)
|
||||
tvRect.origin.x += (p - minVisCoord)/8;
|
||||
else
|
||||
tvRect.origin.x += (p - minVisCoord)/2;
|
||||
}
|
||||
else // TODO remove this condition
|
||||
{
|
||||
NSLog(@"not outside !");
|
||||
}
|
||||
[_tableView scrollPoint: tvRect.origin];
|
||||
visibleRect = [self visibleRect];
|
||||
minVisCoord = NSMinX (visibleRect);
|
||||
maxVisCoord = NSMaxX (visibleRect);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
e = [NSApp nextEventMatchingMask: eventMask
|
||||
untilDate: distantFuture
|
||||
inMode: NSEventTrackingRunLoopMode
|
||||
dequeue: YES];
|
||||
}
|
||||
if (lit)
|
||||
{
|
||||
NSHighlightRect(highlightRect);
|
||||
lit = NO;
|
||||
}
|
||||
|
||||
[NSEvent stopPeriodicEvents];
|
||||
[self unlockFocus];
|
||||
if (mouseDragged == NO)
|
||||
{
|
||||
[_tableView _selectColumn: columnIndex
|
||||
modifiers: modifiers];
|
||||
}
|
||||
else // mouseDragged == YES
|
||||
{
|
||||
if (i > columnIndex)
|
||||
i--;
|
||||
[_tableView moveColumn: columnIndex
|
||||
toColumn: i];
|
||||
|
||||
// TODO: Move the dragged column
|
||||
}
|
||||
free(_cO_minus1);
|
||||
return;
|
||||
}
|
||||
else
|
||||
{
|
||||
NSPoint pDown;
|
||||
NSPoint pUp;
|
||||
NSEvent *e;
|
||||
unsigned int modifiers = [event modifierFlags];
|
||||
NSDate *distantFuture = [NSDate distantFuture];
|
||||
e = [NSApp nextEventMatchingMask: NSLeftMouseUpMask
|
||||
untilDate: distantFuture
|
||||
inMode: NSEventTrackingRunLoopMode
|
||||
dequeue: YES];
|
||||
pDown = [event locationInWindow];
|
||||
pUp = [e locationInWindow];
|
||||
if (pUp.x - pDown.x <= 2
|
||||
&& pUp.y - pDown.y <= 2)
|
||||
[_tableView _selectColumn: columnIndex
|
||||
modifiers: modifiers];
|
||||
}
|
||||
else // mouseDragged == YES
|
||||
{
|
||||
if (startedPeriodicEvents == YES)
|
||||
[NSEvent stopPeriodicEvents];
|
||||
|
||||
// TODO: Move the dragged column
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@end
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue