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Diffstat (limited to 'cocoa/InfoBar.mm')
| -rw-r--r-- | cocoa/InfoBar.mm | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/cocoa/InfoBar.mm b/cocoa/InfoBar.mm new file mode 100644 index 000000000..90b51c373 --- /dev/null +++ b/cocoa/InfoBar.mm @@ -0,0 +1,444 @@ + +/** + * 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. + [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: @"Default status text"]; + + [self addSubview: mStatusTextLabel]; + [mStatusTextLabel release]; +} + +//-------------------------------------------------------------------------------------------------- + +- (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 |