/** * Scintilla source code edit control * ScintillaCocoa.mm - Cocoa subclass of ScintillaBase * * Written by Mike Lischke * * Loosely based on ScintillaMacOSX.cxx. * Copyright 2003 by Evan Jones * Based on ScintillaGTK.cxx Copyright 1998-2002 by Neil Hodgson * The License.txt file describes the conditions under which this software may be distributed. * * Copyright (c) 2009, 2010 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 #import // Temporary #include "ScintillaView.h" #include "PlatCocoa.h" using namespace Scintilla; #ifndef WM_UNICHAR #define WM_UNICHAR 0x0109 #endif NSString* ScintillaRecPboardType = @"com.scintilla.utf16-plain-text.rectangular"; //-------------------------------------------------------------------------------------------------- // Define keyboard shortcuts (equivalents) the Mac way. #define SCI_CMD ( SCI_ALT | SCI_CTRL) #define SCI_SCMD ( SCI_CMD | SCI_SHIFT) static const KeyToCommand macMapDefault[] = { {SCK_DOWN, SCI_CMD, SCI_DOCUMENTEND}, {SCK_UP, SCI_CMD, SCI_DOCUMENTSTART}, {SCK_LEFT, SCI_CMD, SCI_VCHOME}, {SCK_LEFT, SCI_SCMD, SCI_VCHOMEEXTEND}, {SCK_RIGHT, SCI_CMD, SCI_LINEEND}, {SCK_RIGHT, SCI_SCMD, SCI_LINEENDEXTEND}, {SCK_DOWN, SCI_NORM, SCI_LINEDOWN}, {SCK_DOWN, SCI_SHIFT, SCI_LINEDOWNEXTEND}, {SCK_DOWN, SCI_CTRL, SCI_LINESCROLLDOWN}, {SCK_DOWN, SCI_ASHIFT, SCI_LINEDOWNRECTEXTEND}, {SCK_UP, SCI_NORM, SCI_LINEUP}, {SCK_UP, SCI_SHIFT, SCI_LINEUPEXTEND}, {SCK_UP, SCI_CTRL, SCI_LINESCROLLUP}, {SCK_UP, SCI_ASHIFT, SCI_LINEUPRECTEXTEND}, {'[', SCI_CTRL, SCI_PARAUP}, {'[', SCI_CSHIFT, SCI_PARAUPEXTEND}, {']', SCI_CTRL, SCI_PARADOWN}, {']', SCI_CSHIFT, SCI_PARADOWNEXTEND}, {SCK_LEFT, SCI_NORM, SCI_CHARLEFT}, {SCK_LEFT, SCI_SHIFT, SCI_CHARLEFTEXTEND}, {SCK_LEFT, SCI_ALT, SCI_WORDLEFT}, {SCK_LEFT, SCI_CSHIFT, SCI_WORDLEFTEXTEND}, {SCK_LEFT, SCI_ASHIFT, SCI_WORDLEFTEXTEND}, {SCK_RIGHT, SCI_NORM, SCI_CHARRIGHT}, {SCK_RIGHT, SCI_SHIFT, SCI_CHARRIGHTEXTEND}, {SCK_RIGHT, SCI_ALT, SCI_WORDRIGHT}, {SCK_RIGHT, SCI_CSHIFT, SCI_WORDRIGHTEXTEND}, {SCK_RIGHT, SCI_ASHIFT, SCI_WORDRIGHTEXTEND}, {'/', SCI_CTRL, SCI_WORDPARTLEFT}, {'/', SCI_CSHIFT, SCI_WORDPARTLEFTEXTEND}, {'\\', SCI_CTRL, SCI_WORDPARTRIGHT}, {'\\', SCI_CSHIFT, SCI_WORDPARTRIGHTEXTEND}, {SCK_HOME, SCI_NORM, SCI_VCHOME}, {SCK_HOME, SCI_SHIFT, SCI_VCHOMEEXTEND}, {SCK_HOME, SCI_CTRL, SCI_DOCUMENTSTART}, {SCK_HOME, SCI_CSHIFT, SCI_DOCUMENTSTARTEXTEND}, {SCK_HOME, SCI_ALT, SCI_HOMEDISPLAY}, {SCK_HOME, SCI_ASHIFT, SCI_VCHOMERECTEXTEND}, {SCK_END, SCI_NORM, SCI_LINEEND}, {SCK_END, SCI_SHIFT, SCI_LINEENDEXTEND}, {SCK_END, SCI_CTRL, SCI_DOCUMENTEND}, {SCK_END, SCI_CSHIFT, SCI_DOCUMENTENDEXTEND}, {SCK_END, SCI_ALT, SCI_LINEENDDISPLAY}, {SCK_END, SCI_ASHIFT, SCI_LINEENDRECTEXTEND}, {SCK_PRIOR, SCI_NORM, SCI_PAGEUP}, {SCK_PRIOR, SCI_SHIFT, SCI_PAGEUPEXTEND}, {SCK_PRIOR, SCI_ASHIFT, SCI_PAGEUPRECTEXTEND}, {SCK_NEXT, SCI_NORM, SCI_PAGEDOWN}, {SCK_NEXT, SCI_SHIFT, SCI_PAGEDOWNEXTEND}, {SCK_NEXT, SCI_ASHIFT, SCI_PAGEDOWNRECTEXTEND}, {SCK_DELETE, SCI_NORM, SCI_CLEAR}, {SCK_DELETE, SCI_SHIFT, SCI_CUT}, {SCK_DELETE, SCI_CTRL, SCI_DELWORDRIGHT}, {SCK_DELETE, SCI_CSHIFT, SCI_DELLINERIGHT}, {SCK_INSERT, SCI_NORM, SCI_EDITTOGGLEOVERTYPE}, {SCK_INSERT, SCI_SHIFT, SCI_PASTE}, {SCK_INSERT, SCI_CTRL, SCI_COPY}, {SCK_ESCAPE, SCI_NORM, SCI_CANCEL}, {SCK_BACK, SCI_NORM, SCI_DELETEBACK}, {SCK_BACK, SCI_SHIFT, SCI_DELETEBACK}, {SCK_BACK, SCI_CTRL, SCI_DELWORDLEFT}, {SCK_BACK, SCI_ALT, SCI_UNDO}, {SCK_BACK, SCI_CSHIFT, SCI_DELLINELEFT}, {'z', SCI_CMD, SCI_UNDO}, {'z', SCI_SCMD, SCI_REDO}, {'x', SCI_CMD, SCI_CUT}, {'c', SCI_CMD, SCI_COPY}, {'v', SCI_CMD, SCI_PASTE}, {'a', SCI_CMD, SCI_SELECTALL}, {SCK_TAB, SCI_NORM, SCI_TAB}, {SCK_TAB, SCI_SHIFT, SCI_BACKTAB}, {SCK_RETURN, SCI_NORM, SCI_NEWLINE}, {SCK_RETURN, SCI_SHIFT, SCI_NEWLINE}, {SCK_ADD, SCI_CMD, SCI_ZOOMIN}, {SCK_SUBTRACT, SCI_CMD, SCI_ZOOMOUT}, {SCK_DIVIDE, SCI_CMD, SCI_SETZOOM}, {'l', SCI_CMD, SCI_LINECUT}, {'l', SCI_CSHIFT, SCI_LINEDELETE}, {'t', SCI_CSHIFT, SCI_LINECOPY}, {'t', SCI_CTRL, SCI_LINETRANSPOSE}, {'d', SCI_CTRL, SCI_SELECTIONDUPLICATE}, {'u', SCI_CTRL, SCI_LOWERCASE}, {'u', SCI_CSHIFT, SCI_UPPERCASE}, {0, 0, 0}, }; //-------------------------------------------------------------------------------------------------- @implementation TimerTarget - (id) init: (void*) target { [super init]; if (self != nil) { mTarget = target; // Get the default notification queue for the thread which created the instance (usually the // main thread). We need that later for idle event processing. NSNotificationCenter* center = [NSNotificationCenter defaultCenter]; notificationQueue = [[NSNotificationQueue alloc] initWithNotificationCenter: center]; [center addObserver: self selector: @selector(idleTriggered:) name: @"Idle" object: nil]; } return self; } //-------------------------------------------------------------------------------------------------- - (void) dealloc { [notificationQueue release]; [super dealloc]; } //-------------------------------------------------------------------------------------------------- /** * Method called by a timer installed by ScintillaCocoa. This two step approach is needed because * a native Obj-C class is required as target for the timer. */ - (void) timerFired: (NSTimer*) timer { reinterpret_cast(mTarget)->TimerFired(timer); } //-------------------------------------------------------------------------------------------------- /** * Another timer callback for the idle timer. */ - (void) idleTimerFired: (NSTimer*) timer { // Idle timer event. // Post a new idle notification, which gets executed when the run loop is idle. // Since we are coalescing on name and sender there will always be only one actual notification // even for multiple requests. NSNotification *notification = [NSNotification notificationWithName: @"Idle" object: self]; [notificationQueue enqueueNotification: notification postingStyle: NSPostWhenIdle coalesceMask: (NSNotificationCoalescingOnName | NSNotificationCoalescingOnSender) forModes: nil]; } //-------------------------------------------------------------------------------------------------- /** * Another step for idle events. The timer (for idle events) simply requests a notification on * idle time. Only when this notification is send we actually call back the editor. */ - (void) idleTriggered: (NSNotification*) notification { reinterpret_cast(mTarget)->IdleTimerFired(); } @end //----------------- ScintillaCocoa ----------------------------------------------------------------- ScintillaCocoa::ScintillaCocoa(NSView* view) { wMain= [view retain]; timerTarget = [[[TimerTarget alloc] init: this] retain]; Initialise(); } //-------------------------------------------------------------------------------------------------- ScintillaCocoa::~ScintillaCocoa() { SetTicking(false); [timerTarget release]; NSView* container = ContentView(); [container release]; } //-------------------------------------------------------------------------------------------------- /** * Core initialization of the control. Everything that needs to be set up happens here. */ void ScintillaCocoa::Initialise() { notifyObj = NULL; notifyProc = NULL; capturedMouse = false; // Tell Scintilla not to buffer: Quartz buffers drawing for us. WndProc(SCI_SETBUFFEREDDRAW, 0, 0); // We are working with Unicode exclusively. WndProc(SCI_SETCODEPAGE, SC_CP_UTF8, 0); // Add Mac specific key bindings. for (int i = 0; macMapDefault[i].key; i++) kmap.AssignCmdKey(macMapDefault[i].key, macMapDefault[i].modifiers, macMapDefault[i].msg); } //-------------------------------------------------------------------------------------------------- /** * We need some clean up. Do it here. */ void ScintillaCocoa::Finalise() { SetTicking(false); ScintillaBase::Finalise(); } //-------------------------------------------------------------------------------------------------- /** * Helper function to get the outer container which represents the Scintilla editor on application side. */ ScintillaView* ScintillaCocoa::TopContainer() { NSView* container = static_cast(wMain.GetID()); return static_cast([container superview]); } //-------------------------------------------------------------------------------------------------- /** * Helper function to get the inner container which represents the actual "canvas" we work with. */ NSView* ScintillaCocoa::ContentView() { return static_cast(wMain.GetID()); } //-------------------------------------------------------------------------------------------------- /** * Instead of returning the size of the inner view we have to return the visible part of it * in order to make scrolling working properly. */ PRectangle ScintillaCocoa::GetClientRectangle() { NSView* host = ContentView(); NSSize size = [host frame].size; return PRectangle(0, 0, size.width, size.height); } //-------------------------------------------------------------------------------------------------- /** * Converts the given point from base coordinates to local coordinates and at the same time into * a native Point structure. Base coordinates are used for the top window used in the view hierarchy. */ Scintilla::Point ScintillaCocoa::ConvertPoint(NSPoint point) { NSView* container = ContentView(); NSPoint result = [container convertPoint: point fromView: nil]; return Point(result.x, result.y); } //-------------------------------------------------------------------------------------------------- /** * A function to directly execute code that would usually go the long way via window messages. * However this is a Windows metapher and not used here, hence we just call our fake * window proc. The given parameters directly reflect the message parameters used on Windows. * * @param sciThis The target which is to be called. * @param iMessage A code that indicates which message was sent. * @param wParam One of the two free parameters for the message. Traditionally a word sized parameter * (hence the w prefix). * @param lParam The other of the two free parameters. A signed long. */ sptr_t ScintillaCocoa::DirectFunction(ScintillaCocoa *sciThis, unsigned int iMessage, uptr_t wParam, sptr_t lParam) { return sciThis->WndProc(iMessage, wParam, lParam); } //-------------------------------------------------------------------------------------------------- /** * This method is very similar to DirectFunction. On Windows it sends a message (not in the Obj-C sense) * to the target window. Here we simply call our fake window proc. */ sptr_t scintilla_send_message(void* sci, unsigned int iMessage, uptr_t wParam, sptr_t lParam) { ScintillaView *control = reinterpret_cast(sci); ScintillaCocoa* scintilla = [control backend]; return scintilla->WndProc(iMessage, wParam, lParam); } //-------------------------------------------------------------------------------------------------- /** * That's our fake window procedure. On Windows each window has a dedicated procedure to handle * commands (also used to synchronize UI and background threads), which is not the case in Cocoa. * * Messages handled here are almost solely for special commands of the backend. Everything which * would be sytem messages on Windows (e.g. for key down, mouse move etc.) are handled by * directly calling appropriate handlers. */ sptr_t ScintillaCocoa::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) { switch (iMessage) { case SCI_GETDIRECTFUNCTION: return reinterpret_cast(DirectFunction); case SCI_GETDIRECTPOINTER: return reinterpret_cast(this); case SCI_GRABFOCUS: // TODO: implement it break; case WM_UNICHAR: // Special case not used normally. Characters passed in this way will be inserted // regardless of their value or modifier states. That means no command interpretation is // performed. if (IsUnicodeMode()) { NSString* input = [[NSString stringWithCharacters: (const unichar*) &wParam length: 1] autorelease]; const char* utf8 = [input UTF8String]; AddCharUTF((char*) utf8, strlen(utf8), false); return 1; } return 0; default: unsigned int r = ScintillaBase::WndProc(iMessage, wParam, lParam); return r; } return 0l; } //-------------------------------------------------------------------------------------------------- /** * In Windows lingo this is the handler which handles anything that wasn't handled in the normal * window proc which would usually send the message back to generic window proc that Windows uses. */ sptr_t ScintillaCocoa::DefWndProc(unsigned int, uptr_t, sptr_t) { return 0; } //-------------------------------------------------------------------------------------------------- /** * Enables or disables a timer that can trigger background processing at a regular interval, like * drag scrolling or caret blinking. */ void ScintillaCocoa::SetTicking(bool on) { if (timer.ticking != on) { timer.ticking = on; if (timer.ticking) { // Scintilla ticks = milliseconds // Using userInfo as flag to distinct between tick and idle timer. NSTimer* tickTimer = [NSTimer scheduledTimerWithTimeInterval: timer.tickSize / 1000.0 target: timerTarget selector: @selector(timerFired:) userInfo: nil repeats: YES]; timer.tickerID = reinterpret_cast(tickTimer); } else if (timer.tickerID != NULL) { [reinterpret_cast(timer.tickerID) invalidate]; timer.tickerID = 0; } } timer.ticksToWait = caret.period; } //-------------------------------------------------------------------------------------------------- bool ScintillaCocoa::SetIdle(bool on) { if (idler.state != on) { idler.state = on; if (idler.state) { // Scintilla ticks = milliseconds NSTimer* idleTimer = [NSTimer scheduledTimerWithTimeInterval: timer.tickSize / 1000.0 target: timerTarget selector: @selector(idleTimerFired:) userInfo: nil repeats: YES]; idler.idlerID = reinterpret_cast(idleTimer); } else if (idler.idlerID != NULL) { [reinterpret_cast(idler.idlerID) invalidate]; idler.idlerID = 0; } } return true; } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::CopyToClipboard(const SelectionText &selectedText) { SetPasteboardData([NSPasteboard generalPasteboard], selectedText); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::Copy() { if (!sel.Empty()) { SelectionText selectedText; CopySelectionRange(&selectedText); CopyToClipboard(selectedText); } } //-------------------------------------------------------------------------------------------------- bool ScintillaCocoa::CanPaste() { if (!Editor::CanPaste()) return false; return GetPasteboardData([NSPasteboard generalPasteboard], NULL); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::Paste() { Paste(false); } //-------------------------------------------------------------------------------------------------- /** * Pastes data from the paste board into the editor. */ void ScintillaCocoa::Paste(bool forceRectangular) { SelectionText selectedText; bool ok = GetPasteboardData([NSPasteboard generalPasteboard], &selectedText); if (forceRectangular) selectedText.rectangular = forceRectangular; if (!ok || !selectedText.s) // No data or no flavor we support. return; pdoc->BeginUndoAction(); ClearSelection(); if (selectedText.rectangular) { SelectionPosition selStart = sel.RangeMain().Start(); PasteRectangular(selStart, selectedText.s, selectedText.len); } else if (pdoc->InsertString(sel.RangeMain().caret.Position(), selectedText.s, selectedText.len)) SetEmptySelection(sel.RangeMain().caret.Position() + selectedText.len); pdoc->EndUndoAction(); Redraw(); EnsureCaretVisible(); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::CreateCallTipWindow(PRectangle rc) { /* // create a calltip window if (!ct.wCallTip.Created()) { WindowClass windowClass = kHelpWindowClass; WindowAttributes attributes = kWindowNoAttributes; Rect contentBounds; WindowRef outWindow; // convert PRectangle to Rect // this adjustment gets the calltip window placed in the correct location relative // to our editor window Rect bounds; OSStatus err; err = GetWindowBounds( this->GetOwner(), kWindowGlobalPortRgn, &bounds ); assert( err == noErr ); contentBounds.top = rc.top + bounds.top; contentBounds.bottom = rc.bottom + bounds.top; contentBounds.right = rc.right + bounds.left; contentBounds.left = rc.left + bounds.left; // create our calltip hiview HIViewRef ctw = scintilla_calltip_new(); CallTip* objectPtr = &ct; ScintillaCocoa* sciThis = this; SetControlProperty( ctw, scintillaMacOSType, 0, sizeof( this ), &sciThis ); SetControlProperty( ctw, scintillaCallTipType, 0, sizeof( objectPtr ), &objectPtr ); CreateNewWindow(windowClass, attributes, &contentBounds, &outWindow); ControlRef root; CreateRootControl(outWindow, &root); HIViewRef hiroot = HIViewGetRoot (outWindow); HIViewAddSubview(hiroot, ctw); HIRect boundsRect; HIViewGetFrame(hiroot, &boundsRect); HIViewSetFrame( ctw, &boundsRect ); // bind the size of the calltip to the size of it's container window HILayoutInfo layout = { kHILayoutInfoVersionZero, { { NULL, kHILayoutBindTop, 0 }, { NULL, kHILayoutBindLeft, 0 }, { NULL, kHILayoutBindBottom, 0 }, { NULL, kHILayoutBindRight, 0 } }, { { NULL, kHILayoutScaleAbsolute, 0 }, { NULL, kHILayoutScaleAbsolute, 0 } }, { { NULL, kHILayoutPositionTop, 0 }, { NULL, kHILayoutPositionLeft, 0 } } }; HIViewSetLayoutInfo(ctw, &layout); ct.wCallTip = root; ct.wDraw = ctw; ct.wCallTip.SetWindow(outWindow); HIViewSetVisible(ctw,true); } */ } void ScintillaCocoa::AddToPopUp(const char *label, int cmd, bool enabled) { NSMenuItem* item; ScintillaContextMenu *menu= reinterpret_cast(popup.GetID()); [menu setOwner: this]; [menu setAutoenablesItems: NO]; if (cmd == 0) item = [NSMenuItem separatorItem]; else item = [[NSMenuItem alloc] init]; [item setTarget: menu]; [item setAction: @selector(handleCommand:)]; [item setTag: cmd]; [item setTitle: [NSString stringWithUTF8String: label]]; [item setEnabled: enabled]; [menu addItem: item]; } // ------------------------------------------------------------------------------------------------- void ScintillaCocoa::ClaimSelection() { // Mac OS X does not have a primary selection. } // ------------------------------------------------------------------------------------------------- /** * Returns the current caret position (which is tracked as an offset into the entire text string) * as a row:column pair. The result is zero-based. */ NSPoint ScintillaCocoa::GetCaretPosition() { NSPoint result; result.y = pdoc->LineFromPosition(sel.RangeMain().caret.Position()); result.x = sel.RangeMain().caret.Position() - pdoc->LineStart(result.y); return result; } // ------------------------------------------------------------------------------------------------- #pragma segment Drag /** * Triggered by the tick timer on a regular basis to scroll the content during a drag operation. */ void ScintillaCocoa::DragScroll() { if (!posDrag.IsValid()) { scrollSpeed = 1; scrollTicks = 2000; return; } // TODO: does not work for wrapped lines, fix it. int line = pdoc->LineFromPosition(posDrag.Position()); int currentVisibleLine = cs.DisplayFromDoc(line); int lastVisibleLine = Platform::Minimum(topLine + LinesOnScreen(), cs.LinesDisplayed()) - 2; if (currentVisibleLine <= topLine && topLine > 0) ScrollTo(topLine - scrollSpeed); else if (currentVisibleLine >= lastVisibleLine) ScrollTo(topLine + scrollSpeed); else { scrollSpeed = 1; scrollTicks = 2000; return; } // TODO: also handle horizontal scrolling. if (scrollSpeed == 1) { scrollTicks -= timer.tickSize; if (scrollTicks <= 0) { scrollSpeed = 5; scrollTicks = 2000; } } } //-------------------------------------------------------------------------------------------------- /** * Called when a drag operation was initiated from within Scintilla. */ void ScintillaCocoa::StartDrag() { if (sel.Empty()) return; // Put the data to be dragged on the drag pasteboard. SelectionText selectedText; NSPasteboard* pasteboard = [NSPasteboard pasteboardWithName: NSDragPboard]; CopySelectionRange(&selectedText); SetPasteboardData(pasteboard, selectedText); // Prepare drag image. PRectangle localRectangle = RectangleFromRange(sel.RangeMain().Start().Position(), sel.RangeMain().End().Position()); NSRect selectionRectangle = PRectangleToNSRect(localRectangle); NSView* content = ContentView(); #if 0 // TODO: fix initialization of the drag image with CGImageRef. // To get a bitmap of the text we're dragging, we just use Paint on a pixmap surface. SurfaceImpl *sw = new SurfaceImpl(); SurfaceImpl *pixmap = NULL; bool lastHideSelection = hideSelection; hideSelection = true; if (sw) { pixmap = new SurfaceImpl(); if (pixmap) { PRectangle client = GetClientRectangle(); PRectangle imageRect = NSRectToPRectangle(selectionRectangle); paintState = painting; //sw->InitPixMap(client.Width(), client.Height(), NULL, NULL); sw->InitPixMap(imageRect.Width(), imageRect.Height(), NULL, NULL); paintingAllText = true; Paint(sw, imageRect); paintState = notPainting; pixmap->InitPixMap(imageRect.Width(), imageRect.Height(), NULL, NULL); CGContextRef gc = pixmap->GetContext(); // To make Paint() work on a bitmap, we have to flip our coordinates and translate the origin CGContextTranslateCTM(gc, 0, imageRect.Height()); CGContextScaleCTM(gc, 1.0, -1.0); pixmap->CopyImageRectangle(*sw, imageRect, PRectangle(0, 0, imageRect.Width(), imageRect.Height())); // XXX TODO: overwrite any part of the image that is not part of the // selection to make it transparent. right now we just use // the full rectangle which may include non-selected text. } sw->Release(); delete sw; } hideSelection = lastHideSelection; NSBitmapImageRep* bitmap = NULL; if (pixmap) { bitmap = [[[NSBitmapImageRep alloc] initWithCGImage: pixmap->GetImage()] autorelease]; pixmap->Release(); delete pixmap; } #else // Poor man's drag image: take a snapshot of the content view. [content lockFocus]; NSBitmapImageRep* bitmap = [[[NSBitmapImageRep alloc] initWithFocusedViewRect: selectionRectangle] autorelease]; [bitmap setColorSpaceName: NSDeviceRGBColorSpace]; [content unlockFocus]; #endif NSImage* image = [[[NSImage alloc] initWithSize: selectionRectangle.size] autorelease]; [image addRepresentation: bitmap]; NSImage* dragImage = [[[NSImage alloc] initWithSize: selectionRectangle.size] autorelease]; [dragImage setBackgroundColor: [NSColor clearColor]]; [dragImage lockFocus]; [image dissolveToPoint: NSMakePoint(0.0, 0.0) fraction: 0.5]; [dragImage unlockFocus]; NSPoint startPoint; startPoint.x = selectionRectangle.origin.x; startPoint.y = selectionRectangle.origin.y + selectionRectangle.size.height; [content dragImage: dragImage at: startPoint offset: NSZeroSize event: lastMouseEvent // Set in MouseMove. pasteboard: pasteboard source: content slideBack: YES]; } //-------------------------------------------------------------------------------------------------- /** * Called when a drag operation reaches the control which was initiated outside. */ NSDragOperation ScintillaCocoa::DraggingEntered(id info) { inDragDrop = ddDragging; return DraggingUpdated(info); } //-------------------------------------------------------------------------------------------------- /** * Called frequently during a drag operation if we are the target. Keep telling the caller * what drag operation we accept and update the drop caret position to indicate the * potential insertion point of the dragged data. */ NSDragOperation ScintillaCocoa::DraggingUpdated(id info) { // Convert the drag location from window coordinates to view coordinates and // from there to a text position to finally set the drag position. Point location = ConvertPoint([info draggingLocation]); SetDragPosition(SPositionFromLocation(location)); NSDragOperation sourceDragMask = [info draggingSourceOperationMask]; if (sourceDragMask == NSDragOperationNone) return sourceDragMask; NSPasteboard* pasteboard = [info draggingPasteboard]; // Return what type of operation we will perform. Prefer move over copy. if ([[pasteboard types] containsObject: NSStringPboardType] || [[pasteboard types] containsObject: ScintillaRecPboardType]) return (sourceDragMask & NSDragOperationMove) ? NSDragOperationMove : NSDragOperationCopy; if ([[pasteboard types] containsObject: NSFilenamesPboardType]) return (sourceDragMask & NSDragOperationGeneric); return NSDragOperationNone; } //-------------------------------------------------------------------------------------------------- /** * Resets the current drag position as we are no longer the drag target. */ void ScintillaCocoa::DraggingExited(id info) { SetDragPosition(SelectionPosition(invalidPosition)); inDragDrop = ddNone; } //-------------------------------------------------------------------------------------------------- /** * Here is where the real work is done. Insert the text from the pasteboard. */ bool ScintillaCocoa::PerformDragOperation(id info) { NSPasteboard* pasteboard = [info draggingPasteboard]; if ([[pasteboard types] containsObject: NSFilenamesPboardType]) { NSArray* files = [pasteboard propertyListForType: NSFilenamesPboardType]; for (NSString* uri in files) NotifyURIDropped([uri UTF8String]); } else { SelectionText text; GetPasteboardData(pasteboard, &text); if (text.len > 0) { NSDragOperation operation = [info draggingSourceOperationMask]; bool moving = (operation & NSDragOperationMove) != 0; DropAt(posDrag, text.s, moving, text.rectangular); }; } return true; } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::SetPasteboardData(NSPasteboard* board, const SelectionText &selectedText) { if (selectedText.len == 0) return; NSString *string; string = [NSString stringWithUTF8String: selectedText.s]; [board declareTypes:[NSArray arrayWithObjects: NSStringPboardType, selectedText.rectangular ? ScintillaRecPboardType : nil, nil] owner:nil]; if (selectedText.rectangular) { // This is specific to scintilla, allows us to drag rectangular selections around the document. [board setString: string forType: ScintillaRecPboardType]; } [board setString: string forType: NSStringPboardType]; } //-------------------------------------------------------------------------------------------------- /** * Helper method to retrieve the best fitting alternative from the general pasteboard. */ bool ScintillaCocoa::GetPasteboardData(NSPasteboard* board, SelectionText* selectedText) { NSArray* supportedTypes = [NSArray arrayWithObjects: ScintillaRecPboardType, NSStringPboardType, nil]; NSString *bestType = [board availableTypeFromArray: supportedTypes]; NSString* data = [board stringForType: bestType]; if (data != nil) { if (selectedText != nil) { char* text = (char*) [data UTF8String]; bool rectangular = bestType == ScintillaRecPboardType; selectedText->Copy(text, strlen(text) + 1, SC_CP_UTF8, SC_CHARSET_DEFAULT , rectangular, false); } return true; } return false; } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::SetMouseCapture(bool on) { capturedMouse = on; /* if (mouseDownCaptures) { if (capturedMouse) WndProc(SCI_SETCURSOR, Window::cursorArrow, 0); else // Reset to normal. Actual image will be set on mouse move. WndProc(SCI_SETCURSOR, (unsigned int) SC_CURSORNORMAL, 0); } */ } //-------------------------------------------------------------------------------------------------- bool ScintillaCocoa::HaveMouseCapture() { return capturedMouse; } //-------------------------------------------------------------------------------------------------- /** * Synchronously paint a rectangle of the window. */ void ScintillaCocoa::SyncPaint(void* gc, PRectangle rc) { paintState = painting; rcPaint = rc; PRectangle rcText = GetTextRectangle(); paintingAllText = rcPaint.Contains(rcText); Surface *sw = Surface::Allocate(); if (sw) { sw->Init(gc, wMain.GetID()); Paint(sw, rc); if (paintState == paintAbandoned) { // Do a full paint. rcPaint = GetClientRectangle(); paintState = painting; paintingAllText = true; Paint(sw, rcPaint); } sw->Release(); delete sw; } paintState = notPainting; } //-------------------------------------------------------------------------------------------------- /** * Modfies the vertical scroll position to make the current top line show up as such. */ void ScintillaCocoa::SetVerticalScrollPos() { ScintillaView* topContainer = TopContainer(); // Convert absolute coordinate into the range [0..1]. Keep in mind that the visible area // does *not* belong to the scroll range. float relativePosition = (float) topLine / MaxScrollPos(); [topContainer setVerticalScrollPosition: relativePosition]; } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::SetHorizontalScrollPos() { ScintillaView* topContainer = TopContainer(); PRectangle textRect = GetTextRectangle(); // Convert absolute coordinate into the range [0..1]. Keep in mind that the visible area // does *not* belong to the scroll range. float relativePosition = (float) xOffset / (scrollWidth - textRect.Width()); [topContainer setHorizontalScrollPosition: relativePosition]; } //-------------------------------------------------------------------------------------------------- /** * Used to adjust both scrollers to reflect the current scroll range and position in the editor. * * @param nMax Number of lines in the editor. * @param nPage Number of lines per scroll page. * @return True if there was a change, otherwise false. */ bool ScintillaCocoa::ModifyScrollBars(int nMax, int nPage) { // Input values are given in lines, not pixels, so we have to convert. int lineHeight = WndProc(SCI_TEXTHEIGHT, 0, 0); PRectangle bounds = GetTextRectangle(); ScintillaView* topContainer = TopContainer(); // Set page size to the same value as the scroll range to hide the scrollbar. int scrollRange = lineHeight * (nMax + 1); // +1 because the caller subtracted one. int pageSize; if (verticalScrollBarVisible) pageSize = bounds.Height(); else pageSize = scrollRange; bool verticalChange = [topContainer setVerticalScrollRange: scrollRange page: pageSize]; scrollRange = scrollWidth; if (horizontalScrollBarVisible) pageSize = bounds.Width(); else pageSize = scrollRange; bool horizontalChange = [topContainer setHorizontalScrollRange: scrollRange page: pageSize]; return verticalChange || horizontalChange; } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::Resize() { ChangeSize(); } //-------------------------------------------------------------------------------------------------- /** * Called by the frontend control when the user manipulates one of the scrollers. * * @param position The relative position of the scroller in the range of [0..1]. * @param part Specifies which part was clicked on by the user, so we can handle thumb tracking * as well as page and line scrolling. * @param horizontal True if the horizontal scroller was hit, otherwise false. */ void ScintillaCocoa::DoScroll(float position, NSScrollerPart part, bool horizontal) { // If the given scroller part is not the knob (or knob slot) then the given position is not yet // current and we have to update it. if (horizontal) { // Horizontal offset is given in pixels. PRectangle textRect = GetTextRectangle(); int offset = (int) (position * (scrollWidth - textRect.Width())); int smallChange = (int) (textRect.Width() / 30); if (smallChange < 5) smallChange = 5; switch (part) { case NSScrollerDecrementLine: offset -= smallChange; break; case NSScrollerDecrementPage: offset -= textRect.Width(); break; case NSScrollerIncrementLine: offset += smallChange; break; case NSScrollerIncrementPage: offset += textRect.Width(); break; }; HorizontalScrollTo(offset); } else { // VerticalScrolling is by line. int topLine = (int) (position * MaxScrollPos()); int page = LinesOnScreen(); switch (part) { case NSScrollerDecrementLine: topLine--; break; case NSScrollerDecrementPage: topLine -= page; break; case NSScrollerIncrementLine: topLine++; break; case NSScrollerIncrementPage: topLine += page; break; }; ScrollTo(topLine, true); } } //-------------------------------------------------------------------------------------------------- /** * Used to register a callback function for a given window. This is used to emulate the way * Windows notfies other controls (mainly up in the view hierarchy) about certain events. * * @param windowid A handle to a window. That value is generic and can be anything. It is passed * through to the callback. * @param callback The callback function to be used for future notifications. If NULL then no * notifications will be sent anymore. */ void ScintillaCocoa::RegisterNotifyCallback(intptr_t windowid, SciNotifyFunc callback) { notifyObj = windowid; notifyProc = callback; } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::NotifyChange() { if (notifyProc != NULL) notifyProc(notifyObj, WM_COMMAND, (uintptr_t) (SCEN_CHANGE << 16), (uintptr_t) this); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::NotifyFocus(bool focus) { if (notifyProc != NULL) notifyProc(notifyObj, WM_COMMAND, (uintptr_t) ((focus ? SCEN_SETFOCUS : SCEN_KILLFOCUS) << 16), (uintptr_t) this); } //-------------------------------------------------------------------------------------------------- /** * Used to send a notification (as WM_NOTIFY call) to the procedure, which has been set by the call * to RegisterNotifyCallback (so it is not necessarily the parent window). * * @param scn The notification to send. */ void ScintillaCocoa::NotifyParent(SCNotification scn) { if (notifyProc != NULL) { scn.nmhdr.hwndFrom = (void*) this; scn.nmhdr.idFrom = (unsigned int) wMain.GetID(); notifyProc(notifyObj, WM_NOTIFY, (uintptr_t) 0, (uintptr_t) &scn); } } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::NotifyURIDropped(const char *uri) { SCNotification scn; scn.nmhdr.code = SCN_URIDROPPED; scn.text = uri; NotifyParent(scn); } //-------------------------------------------------------------------------------------------------- bool ScintillaCocoa::HasSelection() { return !sel.Empty(); } //-------------------------------------------------------------------------------------------------- bool ScintillaCocoa::CanUndo() { return pdoc->CanUndo(); } //-------------------------------------------------------------------------------------------------- bool ScintillaCocoa::CanRedo() { return pdoc->CanRedo(); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::TimerFired(NSTimer* timer) { Tick(); DragScroll(); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::IdleTimerFired() { bool more = Idle(); if (!more) SetIdle(false); } //-------------------------------------------------------------------------------------------------- /** * Main entry point for drawing the control. * * @param rect The area to paint, given in the sender's coordinate. * @param gc The context we can use to paint. */ void ScintillaCocoa::Draw(NSRect rect, CGContextRef gc) { SyncPaint(gc, NSRectToPRectangle(rect)); } //-------------------------------------------------------------------------------------------------- /** * Helper function to translate OS X key codes to Scintilla key codes. */ static inline UniChar KeyTranslate(UniChar unicodeChar) { switch (unicodeChar) { case NSDownArrowFunctionKey: return SCK_DOWN; case NSUpArrowFunctionKey: return SCK_UP; case NSLeftArrowFunctionKey: return SCK_LEFT; case NSRightArrowFunctionKey: return SCK_RIGHT; case NSHomeFunctionKey: return SCK_HOME; case NSEndFunctionKey: return SCK_END; case NSPageUpFunctionKey: return SCK_PRIOR; case NSPageDownFunctionKey: return SCK_NEXT; case NSDeleteFunctionKey: return SCK_DELETE; case NSInsertFunctionKey: return SCK_INSERT; case '\n': case 3: return SCK_RETURN; case 27: return SCK_ESCAPE; case 127: return SCK_BACK; case '\t': case 25: // Shift tab, return to unmodified tab and handle that via modifiers. return SCK_TAB; default: return unicodeChar; } } //-------------------------------------------------------------------------------------------------- /** * Main keyboard input handling method. It is called for any key down event, including function keys, * numeric keypad input and whatnot. * * @param event The event instance associated with the key down event. * @return True if the input was handled, false otherwise. */ bool ScintillaCocoa::KeyboardInput(NSEvent* event) { // For now filter out function keys. NSUInteger modifiers = [event modifierFlags]; NSString* input = [event characters]; bool control = (modifiers & NSControlKeyMask) != 0; bool shift = (modifiers & NSShiftKeyMask) != 0; bool command = (modifiers & NSCommandKeyMask) != 0; bool alt = (modifiers & NSAlternateKeyMask) != 0; bool handled = false; // Handle each entry individually. Usually we only have one entry anway. for (int i = 0; i < input.length; i++) { const UniChar originalKey = [input characterAtIndex: i]; UniChar key = KeyTranslate(originalKey); bool consumed = false; // Consumed as command? // Signal command as control + alt. This leaves us without command + control and command + alt // but that's what we get when we have a modifier key more than other platforms. if (KeyDown(key, shift, control || command, alt || command, &consumed)) handled = true; if (consumed) handled = true; } return handled; } //-------------------------------------------------------------------------------------------------- /** * Used to insert already processed text provided by the Cocoa text input system. */ int ScintillaCocoa::InsertText(NSString* input) { const char* utf8 = [input UTF8String]; AddCharUTF((char*) utf8, strlen(utf8), false); return true; } //-------------------------------------------------------------------------------------------------- /** * Called by the owning view when the mouse pointer enters the control. */ void ScintillaCocoa::MouseEntered(NSEvent* event) { if (!HaveMouseCapture()) { WndProc(SCI_SETCURSOR, (long int)SC_CURSORNORMAL, 0); // Mouse location is given in screen coordinates and might also be outside of our bounds. Point location = ConvertPoint([event locationInWindow]); ButtonMove(location); } } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::MouseExited(NSEvent* event) { // Nothing to do here. } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::MouseDown(NSEvent* event) { Point location = ConvertPoint([event locationInWindow]); NSTimeInterval time = [event timestamp]; bool command = ([event modifierFlags] & NSCommandKeyMask) != 0; bool shift = ([event modifierFlags] & NSShiftKeyMask) != 0; bool control = ([event modifierFlags] & NSControlKeyMask) != 0; ButtonDown(Point(location.x, location.y), (int) (time * 1000), shift, control, command); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::MouseMove(NSEvent* event) { lastMouseEvent = event; ButtonMove(ConvertPoint([event locationInWindow])); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::MouseUp(NSEvent* event) { NSTimeInterval time = [event timestamp]; bool control = ([event modifierFlags] & NSControlKeyMask) != 0; ButtonUp(ConvertPoint([event locationInWindow]), (int) (time * 1000), control); } //-------------------------------------------------------------------------------------------------- void ScintillaCocoa::MouseWheel(NSEvent* event) { bool command = ([event modifierFlags] & NSCommandKeyMask) != 0; bool shift = ([event modifierFlags] & NSShiftKeyMask) != 0; int delta; if (shift) delta = 10 * [event deltaX]; // Arbitrary scale factor. else { // In order to make scrolling with larger offset smoother we scroll less lines the larger the // delta value is. if ([event deltaY] < 0) delta = -(int) sqrt(-10.0 * [event deltaY]); else delta = (int) sqrt(10.0 * [event deltaY]); } if (command) { // Zoom! We play with the font sizes in the styles. // Number of steps/line is ignored, we just care if sizing up or down. if (delta > 0) KeyCommand(SCI_ZOOMIN); else KeyCommand(SCI_ZOOMOUT); } else if (shift) HorizontalScrollTo(xOffset - delta); else ScrollTo(topLine - delta, true); } //-------------------------------------------------------------------------------------------------- // Helper methods for NSResponder actions. void ScintillaCocoa::SelectAll() { Editor::SelectAll(); } void ScintillaCocoa::DeleteBackward() { KeyDown(SCK_BACK, false, false, false, nil); } void ScintillaCocoa::Cut() { Editor::Cut(); } void ScintillaCocoa::Undo() { Editor::Undo(); } void ScintillaCocoa::Redo() { Editor::Undo(); } //-------------------------------------------------------------------------------------------------- /** * Creates and returns a popup menu, which is then displayed by the Cocoa framework. */ NSMenu* ScintillaCocoa::CreateContextMenu(NSEvent* event) { // Call ScintillaBase to create the context menu. ContextMenu(Point(0, 0)); return reinterpret_cast(popup.GetID()); } //-------------------------------------------------------------------------------------------------- /** * An intermediate function to forward context menu commands from the menu action handler to * scintilla. */ void ScintillaCocoa::HandleCommand(NSInteger command) { Command(command); } //-------------------------------------------------------------------------------------------------- //OSStatus ScintillaCocoa::ActiveStateChanged() //{ // // If the window is being deactivated, lose the focus and turn off the ticking // if ( ! this->IsActive() ) { // DropCaret(); // //SetFocusState( false ); // SetTicking( false ); // } else { // ShowCaretAtCurrentPosition(); // } // return noErr; //} // //--------------------------------------------------------------------------------------------------