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Diffstat (limited to 'scintilla/cocoa/InfoBar.mm')
| -rw-r--r-- | scintilla/cocoa/InfoBar.mm | 448 |
1 files changed, 448 insertions, 0 deletions
diff --git a/scintilla/cocoa/InfoBar.mm b/scintilla/cocoa/InfoBar.mm new file mode 100644 index 0000000..27b9aa1 --- /dev/null +++ b/scintilla/cocoa/InfoBar.mm @@ -0,0 +1,448 @@ +
+/**
+ * Scintilla source code edit control
+ * InfoBar.mm - Implements special info bar with zoom info, caret position etc. to be used with
+ * ScintillaView.
+ *
+ * Mike Lischke <mlischke@sun.com>
+ *
+ * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
+ * This file is dual licensed under LGPL v2.1 and the Scintilla license (http://www.scintilla.org/License.txt).
+ */
+
+#import "InfoBar.h"
+
+//--------------------------------------------------------------------------------------------------
+
+@implementation VerticallyCenteredTextFieldCell
+
+// Inspired by code from Daniel Jalkut, Red Sweater Software.
+
+- (NSRect) drawingRectForBounds: (NSRect) theRect
+{
+ // Get the parent's idea of where we should draw
+ NSRect newRect = [super drawingRectForBounds: theRect];
+
+ // When the text field is being edited or selected, we have to turn off the magic because it
+ // screws up the configuration of the field editor. We sneak around this by intercepting
+ // selectWithFrame and editWithFrame and sneaking a reduced, centered rect in at the last minute.
+ if (mIsEditingOrSelecting == NO)
+ {
+ // Get our ideal size for current text
+ NSSize textSize = [self cellSizeForBounds: theRect];
+
+ // Center that in the proposed rect
+ float heightDelta = newRect.size.height - textSize.height;
+ if (heightDelta > 0)
+ {
+ newRect.size.height -= heightDelta;
+ newRect.origin.y += ceil(heightDelta / 2);
+ }
+ }
+
+ return newRect;
+}
+
+//--------------------------------------------------------------------------------------------------
+
+- (void) selectWithFrame: (NSRect) aRect inView: (NSView*) controlView editor: (NSText*) textObj
+ delegate:(id) anObject start: (int) selStart length: (int) selLength
+{
+ aRect = [self drawingRectForBounds: aRect];
+ mIsEditingOrSelecting = YES;
+ [super selectWithFrame: aRect
+ inView: controlView
+ editor: textObj
+ delegate: anObject
+ start: selStart
+ length: selLength];
+ mIsEditingOrSelecting = NO;
+}
+
+//--------------------------------------------------------------------------------------------------
+
+- (void) editWithFrame: (NSRect) aRect inView: (NSView*) controlView editor: (NSText*) textObj
+ delegate: (id) anObject event: (NSEvent*) theEvent
+{
+ aRect = [self drawingRectForBounds: aRect];
+ mIsEditingOrSelecting = YES;
+ [super editWithFrame: aRect
+ inView: controlView
+ editor: textObj
+ delegate: anObject
+ event: theEvent];
+ mIsEditingOrSelecting = NO;
+}
+
+@end
+
+//--------------------------------------------------------------------------------------------------
+
+@implementation InfoBar
+
+- (id) initWithFrame: (NSRect) frame
+{
+ self = [super initWithFrame: frame];
+ if (self)
+ {
+ NSBundle* bundle = [NSBundle bundleForClass: [InfoBar class]];
+
+ NSString* path = [bundle pathForResource: @"info_bar_bg" ofType: @"png" inDirectory: nil];
+ mBackground = [[[NSImage alloc] initWithContentsOfFile: path] retain];
+ if (![mBackground isValid])
+ NSLog(@"Background image for info bar is invalid.");
+
+ mScaleFactor = 1.0;
+ mCurrentCaretX = 0;
+ mCurrentCaretY = 0;
+ [self createItems];
+ }
+ return self;
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Called by a connected compontent (usually the info bar) if something changed there.
+ *
+ * @param type The type of the notification.
+ * @param message Carries the new status message if the type is a status message change.
+ * @param location Carries the new location (e.g. caret) if the type is a caret change or similar type.
+ * @param location Carries the new zoom value if the type is a zoom change.
+ */
+- (void) notify: (NotificationType) type message: (NSString*) message location: (NSPoint) location
+ value: (float) value
+{
+ switch (type)
+ {
+ case IBNZoomChanged:
+ [self setScaleFactor: value adjustPopup: YES];
+ break;
+ case IBNCaretChanged:
+ [self setCaretPosition: location];
+ break;
+ case IBNStatusChanged:
+ [mStatusTextLabel setStringValue: message];
+ break;
+ }
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Used to set a protocol object we can use to send change notifications to.
+ */
+- (void) setCallback: (id <InfoBarCommunicator>) callback
+{
+ mCallback = callback;
+}
+
+//--------------------------------------------------------------------------------------------------
+
+static NSString *DefaultScaleMenuLabels[] = {
+ @"20%", @"30%", @"50%", @"75%", @"100%", @"130%", @"160%", @"200%", @"250%", @"300%"
+};
+static float DefaultScaleMenuFactors[] = {
+ 0.2, 0.3, 0.5, 0.75, 1.0, 1.3, 1.6, 2.0, 2.5, 3.0
+};
+static unsigned DefaultScaleMenuSelectedItemIndex = 4;
+static float BarFontSize = 10.0;
+
+- (void) createItems
+{
+ // 1) The zoom popup.
+ unsigned numberOfDefaultItems = sizeof(DefaultScaleMenuLabels) / sizeof(NSString *);
+
+ // Create the popup button.
+ mZoomPopup = [[NSPopUpButton allocWithZone:[self zone]] initWithFrame: NSMakeRect(0.0, 0.0, 1.0, 1.0) pullsDown: NO];
+
+ // No border or background please.
+ [[mZoomPopup cell] setBordered: NO];
+ [[mZoomPopup cell] setArrowPosition: NSPopUpArrowAtBottom];
+
+ // Fill it.
+ for (unsigned count = 0; count < numberOfDefaultItems; count++)
+ {
+ [mZoomPopup addItemWithTitle: NSLocalizedStringFromTable(DefaultScaleMenuLabels[count], @"ZoomValues", nil)];
+ id currentItem = [mZoomPopup itemAtIndex: count];
+ if (DefaultScaleMenuFactors[count] != 0.0)
+ [currentItem setRepresentedObject: [NSNumber numberWithFloat: DefaultScaleMenuFactors[count]]];
+ }
+ [mZoomPopup selectItemAtIndex: DefaultScaleMenuSelectedItemIndex];
+
+ // Hook it up.
+ [mZoomPopup setTarget: self];
+ [mZoomPopup setAction: @selector(zoomItemAction:)];
+
+ // Set a suitable font.
+ [mZoomPopup setFont: [NSFont menuBarFontOfSize: BarFontSize]];
+
+ // Make sure the popup is big enough to fit the cells.
+ [mZoomPopup sizeToFit];
+
+ // Don't let it become first responder
+ [mZoomPopup setRefusesFirstResponder: YES];
+
+ // put it in the scrollview.
+ [self addSubview: mZoomPopup];
+ [mZoomPopup release];
+
+ // 2) The caret position label.
+ Class oldCellClass = [NSTextField cellClass];
+ [NSTextField setCellClass: [VerticallyCenteredTextFieldCell class]];
+
+ mCaretPositionLabel = [[NSTextField alloc] initWithFrame: NSMakeRect(0.0, 0.0, 50.0, 1.0)];
+ [mCaretPositionLabel setBezeled: NO];
+ [mCaretPositionLabel setBordered: NO];
+ [mCaretPositionLabel setEditable: NO];
+ [mCaretPositionLabel setSelectable: NO];
+ [mCaretPositionLabel setDrawsBackground: NO];
+ [mCaretPositionLabel setFont: [NSFont menuBarFontOfSize: BarFontSize]];
+
+ NSTextFieldCell* cell = [mCaretPositionLabel cell];
+ [cell setPlaceholderString: @"0:0"];
+ [cell setAlignment: NSCenterTextAlignment];
+
+ [self addSubview: mCaretPositionLabel];
+ [mCaretPositionLabel release];
+
+ // 3) The status text.
+ mStatusTextLabel = [[NSTextField alloc] initWithFrame: NSMakeRect(0.0, 0.0, 1.0, 1.0)];
+ [mStatusTextLabel setBezeled: NO];
+ [mStatusTextLabel setBordered: NO];
+ [mStatusTextLabel setEditable: NO];
+ [mStatusTextLabel setSelectable: NO];
+ [mStatusTextLabel setDrawsBackground: NO];
+ [mStatusTextLabel setFont: [NSFont menuBarFontOfSize: BarFontSize]];
+
+ cell = [mStatusTextLabel cell];
+ [cell setPlaceholderString: @""];
+
+ [self addSubview: mStatusTextLabel];
+ [mStatusTextLabel release];
+
+ // Restore original cell class so that everything else doesn't get broken
+ [NSTextField setCellClass: oldCellClass];
+}
+
+//--------------------------------------------------------------------------------------------------
+
+- (void) dealloc
+{
+ [mBackground release];
+ [super dealloc];
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Fill the background.
+ */
+- (void) drawRect: (NSRect) rect
+{
+ // Since the background is seamless, we don't need to take care for the proper offset.
+ // Simply tile the background over the invalid rectangle.
+ NSPoint target = {rect.origin.x, 0};
+ while (target.x < rect.origin.x + rect.size.width)
+ {
+ [mBackground drawAtPoint: target fromRect: NSZeroRect operation: NSCompositeCopy fraction: 1];
+ target.x += mBackground.size.width;
+ }
+
+ // Draw separator lines between items.
+ NSRect verticalLineRect;
+ float component = 190.0 / 255.0;
+ NSColor* lineColor = [NSColor colorWithDeviceRed: component green: component blue: component alpha: 1];
+
+ if (mDisplayMask & IBShowZoom)
+ {
+ verticalLineRect = [mZoomPopup frame];
+ verticalLineRect.origin.x += verticalLineRect.size.width + 1.0;
+ verticalLineRect.size.width = 1.0;
+ if (NSIntersectsRect(rect, verticalLineRect))
+ {
+ [lineColor set];
+ NSRectFill(verticalLineRect);
+ }
+ }
+
+ if (mDisplayMask & IBShowCaretPosition)
+ {
+ verticalLineRect = [mCaretPositionLabel frame];
+ verticalLineRect.origin.x += verticalLineRect.size.width + 1.0;
+ verticalLineRect.size.width = 1.0;
+ if (NSIntersectsRect(rect, verticalLineRect))
+ {
+ [lineColor set];
+ NSRectFill(verticalLineRect);
+ }
+ }
+}
+
+//--------------------------------------------------------------------------------------------------
+
+- (BOOL) isOpaque
+{
+ return YES;
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Used to reposition our content depending on the size of the view.
+ */
+- (void) setFrame: (NSRect) newFrame
+{
+ [super setFrame: newFrame];
+ [self layout];
+}
+
+//--------------------------------------------------------------------------------------------------
+
+- (void) layout
+{
+ NSRect currentBounds = {0, 0, 0, [self frame].size.height};
+ if (mDisplayMask & IBShowZoom)
+ {
+ [mZoomPopup setHidden: NO];
+ currentBounds.size.width = [mZoomPopup frame].size.width;
+ [mZoomPopup setFrame: currentBounds];
+ currentBounds.origin.x += currentBounds.size.width + 1; // Add 1 for the separator.
+ }
+ else
+ [mZoomPopup setHidden: YES];
+
+ if (mDisplayMask & IBShowCaretPosition)
+ {
+ [mCaretPositionLabel setHidden: NO];
+ currentBounds.size.width = [mCaretPositionLabel frame].size.width;
+ [mCaretPositionLabel setFrame: currentBounds];
+ currentBounds.origin.x += currentBounds.size.width + 1;
+ }
+ else
+ [mCaretPositionLabel setHidden: YES];
+
+ if (mDisplayMask & IBShowStatusText)
+ {
+ // The status text always takes the rest of the available space.
+ [mStatusTextLabel setHidden: NO];
+ currentBounds.size.width = [self frame].size.width - currentBounds.origin.x;
+ [mStatusTextLabel setFrame: currentBounds];
+ }
+ else
+ [mStatusTextLabel setHidden: YES];
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Used to switch the visible parts of the info bar.
+ *
+ * @param display Bitwise ORed IBDisplay values which determine what to show on the bar.
+ */
+- (void) setDisplay: (IBDisplay) display
+{
+ if (mDisplayMask != display)
+ {
+ mDisplayMask = display;
+ [self layout];
+ [self needsDisplay];
+ }
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Handler for selection changes in the zoom menu.
+ */
+- (void) zoomItemAction: (id) sender
+{
+ NSNumber* selectedFactorObject = [[sender selectedCell] representedObject];
+
+ if (selectedFactorObject == nil)
+ {
+ NSLog(@"Scale popup action: setting arbitrary zoom factors is not yet supported.");
+ return;
+ }
+ else
+ {
+ [self setScaleFactor: [selectedFactorObject floatValue] adjustPopup: NO];
+ }
+}
+
+//--------------------------------------------------------------------------------------------------
+
+- (void) setScaleFactor: (float) newScaleFactor adjustPopup: (BOOL) flag
+{
+ if (mScaleFactor != newScaleFactor)
+ {
+ mScaleFactor = newScaleFactor;
+ if (flag)
+ {
+ unsigned count = 0;
+ unsigned numberOfDefaultItems = sizeof(DefaultScaleMenuFactors) / sizeof(float);
+
+ // We only work with some preset zoom values. If the given value does not correspond
+ // to one then show no selection.
+ while (count < numberOfDefaultItems && (fabs(newScaleFactor - DefaultScaleMenuFactors[count]) > 0.07))
+ count++;
+ if (count == numberOfDefaultItems)
+ [mZoomPopup selectItemAtIndex: -1];
+ else
+ {
+ [mZoomPopup selectItemAtIndex: count];
+
+ // Set scale factor to found preset value if it comes close.
+ mScaleFactor = DefaultScaleMenuFactors[count];
+ }
+ }
+ else
+ {
+ // Internally set. Notify owner.
+ [mCallback notify: IBNZoomChanged message: nil location: NSZeroPoint value: newScaleFactor];
+ }
+ }
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Called from the notification method to update the caret position display.
+ */
+- (void) setCaretPosition: (NSPoint) position
+{
+ // Make the position one-based.
+ int newX = (int) position.x + 1;
+ int newY = (int) position.y + 1;
+
+ if (mCurrentCaretX != newX || mCurrentCaretY != newY)
+ {
+ mCurrentCaretX = newX;
+ mCurrentCaretY = newY;
+
+ [mCaretPositionLabel setStringValue: [NSString stringWithFormat: @"%d:%d", newX, newY]];
+ }
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
+ * Makes the bar resize to the smallest width that can accomodate the currently enabled items.
+ */
+- (void) sizeToFit
+{
+ NSRect frame = [self frame];
+ frame.size.width = 0;
+ if (mDisplayMask & IBShowZoom)
+ frame.size.width += [mZoomPopup frame].size.width;
+
+ if (mDisplayMask & IBShowCaretPosition)
+ frame.size.width += [mCaretPositionLabel frame].size.width;
+
+ if (mDisplayMask & IBShowStatusText)
+ frame.size.width += [mStatusTextLabel frame].size.width;
+
+ [self setFrame: frame];
+}
+
+@end
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