cocoa

问题 I'm trying to implement drag&drop functionality in my app and I ran into a problem of my mouseUp event not firing. It fires just fine if I simply click and release on my view, but if I do drag, my mouseDragged event fires and that's it. By trying different things I figured out that the problem is in my dragImage call, but I don't know how to solve it for now. Here is my code: -(void) mouseDragged:(NSEvent *)theEvent { isDragging = YES; if ([selectedCellRowIndex longValue] >= 0) { NSImage *im

问题 I have created a NSStatusItem and I have assigned two key equivalents within interface builder (Xcode 4.0). These are for the preference menu cmd-, and the quit option cmd-q. Both of these will work when the Menu is highlighted/open but will not work otherwise even if the application is the foremost. Any ideas on why this is happening or how I can change this? 回答1: The operating system passes key events that it doesn't handle to the front application, which compares them to any key

问题 I have created a NSStatusItem and I have assigned two key equivalents within interface builder (Xcode 4.0). These are for the preference menu cmd-, and the quit option cmd-q. Both of these will work when the Menu is highlighted/open but will not work otherwise even if the application is the foremost. Any ideas on why this is happening or how I can change this? 回答1: The operating system passes key events that it doesn't handle to the front application, which compares them to any key

问题 I'd like a correct behaviour from the blue drag bar , and no blue rect when dragging. Do you know where is my mistake ? (as you can see, the blue bar is stuck in top, like in this topic : Little circle-line bar stuck at top of NSOutlineView when rearranging using drag and drop) import Cocoa class ViewController: NSViewController, NSOutlineViewDataSource, NSOutlineViewDelegate, NSPasteboardItemDataProvider { @IBOutlet weak var outlineView: NSOutlineView! let REORDER_PASTEBOARD_TYPE = "com.test

问题 I'd like a correct behaviour from the blue drag bar , and no blue rect when dragging. Do you know where is my mistake ? (as you can see, the blue bar is stuck in top, like in this topic : Little circle-line bar stuck at top of NSOutlineView when rearranging using drag and drop) import Cocoa class ViewController: NSViewController, NSOutlineViewDataSource, NSOutlineViewDelegate, NSPasteboardItemDataProvider { @IBOutlet weak var outlineView: NSOutlineView! let REORDER_PASTEBOARD_TYPE = "com.test

问题 This is my first question there. I have created WPF application, which image control source is set to bitmap array of a random image. It works perfectly. The array contains information in the R,G,B order for each pixel. Now, I have to do same thing in Cocoa app for Mac and I have a problem, because I'm doing it first time. I have created NSImageView , expose it as outlet and try to set Image as follows in ViewDidLoad() method: IMW.Image = GetImage(); public static NSImage GetImage(){ NSData

问题 This is my first question there. I have created WPF application, which image control source is set to bitmap array of a random image. It works perfectly. The array contains information in the R,G,B order for each pixel. Now, I have to do same thing in Cocoa app for Mac and I have a problem, because I'm doing it first time. I have created NSImageView , expose it as outlet and try to set Image as follows in ViewDidLoad() method: IMW.Image = GetImage(); public static NSImage GetImage(){ NSData

问题 I have a view based NSTableView with some labels in my customized and subclassed view. One of the label should be editable, so therefore I set this NSTextField to editable. But now I have two problems, I can't solve: 1) If I move the mouse over the editable NSTextField, the cursor don't change to the IBeamCursor (the edit cursor). 2) I need to double click at the label, to be able to edit. I want to have a single click. I found some solutions for this problem here at stackoverflow, the best

问题 I am trying to tackle a problem which sounds pretty simple: changing the background color of an NSPopupButton. Interface Builder only allows changing the style to a pre-defined one and doesn't allow changing the background color. Also, setting up an IBOutlet didn't help since NSPopupButton doesn't have a setBackgroundColor method. I also tried subclassing NSPopupButton to override the drawRect method. Here's what I have tried: - (void)drawRect:(NSRect)dirtyRect { [[NSColor redColor] setFill];

问题 I am trying to tackle a problem which sounds pretty simple: changing the background color of an NSPopupButton. Interface Builder only allows changing the style to a pre-defined one and doesn't allow changing the background color. Also, setting up an IBOutlet didn't help since NSPopupButton doesn't have a setBackgroundColor method. I also tried subclassing NSPopupButton to override the drawRect method. Here's what I have tried: - (void)drawRect:(NSRect)dirtyRect { [[NSColor redColor] setFill];