// static
pascal OSStatus IGraphicsCarbon::TextEntryHandler(EventHandlerCallRef pHandlerCall, EventRef pEvent, void* pGraphicsCarbon)
{
IGraphicsCarbon* _this = (IGraphicsCarbon*) pGraphicsCarbon;
UInt32 eventClass = GetEventClass(pEvent);
UInt32 eventKind = GetEventKind(pEvent);
switch (eventClass)
{
case kEventClassKeyboard:
switch (eventKind)
{
case kEventRawKeyDown:
case kEventRawKeyRepeat:
{
// Get the keys and modifiers
char c;
UInt32 k;
UInt32 modifiers;
GetEventParameter(pEvent, kEventParamKeyMacCharCodes, typeChar, NULL, sizeof(char), NULL, &c);
GetEventParameter(pEvent, kEventParamKeyCode, typeUInt32, NULL, sizeof(UInt32), NULL, &k);
GetEventParameter(pEvent, kEventParamKeyModifiers, typeUInt32, NULL, sizeof(UInt32), NULL, &modifiers);
// paste
if (c == 118 && modifiers == 256)
{
if (TXNIsScrapPastable())
{
TXNPaste(_this->mTextEntryView);
return eventNotHandledErr;
}
}
// trap enter keys
if (c == 3 || c == 13)
{
_this->EndUserInput(true);
return noErr;
}
// trap escape key
if (c == 27)
{
_this->EndUserInput(false);
return noErr;
}
// pass arrow keys
if (k == 125 || k == 126 || k == 123 || k == 124)
return eventNotHandledErr;
// pass delete keys
if (c == 8 || c == 127)
return eventNotHandledErr;
if (_this->mEdParam)
{
switch ( _this->mEdParam->Type() )
{
case IParam::kTypeEnum:
case IParam::kTypeInt:
case IParam::kTypeBool:
if (c >= '0' && c <= '9') break;
else if (c == '-') break;
else if (c == '+') break;
else return noErr;
case IParam::kTypeDouble:
if (c >= '0' && c <= '9') break;
else if (c == '.') break;
else if (c == '-') break;
else if (c == '+') break;
else return noErr;
default:
break;
}
}
// Get the text
CharsHandle textHandle;
long textLength = 0;
TXNGetDataEncoded(_this->mTextEntryView, kTXNStartOffset, kTXNEndOffset, &textHandle, kTXNTextData);
// Check that we have some worthwhile data
if (textHandle != NULL && GetHandleSize(textHandle) > 0)
{
textLength = GetHandleSize(textHandle);
}
if(textLength >= _this->mEdControl->GetTextEntryLength())
{
return noErr;
}
else
{
EventRecord eventRecord;
if (ConvertEventRefToEventRecord(pEvent, &eventRecord))
{
TXNKeyDown(_this->mTextEntryView, &eventRecord);
return noErr;
}
}
}
break;
}
break;
case kEventClassMouse:
{
switch (eventKind)
{
case kEventMouseDown:
case kEventMouseUp:
{
// Get the window handle
WindowRef window;
GetEventParameter(pEvent, kEventParamWindowRef, typeWindowRef, NULL, sizeof(WindowRef), NULL, &window);
// Determine the point
HIPoint p;
GetEventParameter(pEvent, kEventParamMouseLocation, typeHIPoint, NULL, sizeof(HIPoint), NULL, &p);
Point point = { (short)p.y, (short)p.x };
QDGlobalToLocalPoint(GetWindowPort (window), &point);
// Get the viewable area
Rect rect;
TXNGetViewRect (_this->mTextEntryView, &rect);
//swell collision
#undef PtInRect
#define MacPtInRect PtInRect
// Handle the click as necessary
if (PtInRect(point, &rect))
{
#define PtInRect(r,p) SWELL_PtInRect(r,p)
EventRecord eventRecord;
if (eventKind == kEventMouseDown && ConvertEventRefToEventRecord(pEvent, &eventRecord))
{
TXNClick(_this->mTextEntryView, &eventRecord);
}
return noErr;
}
else
{
CallNextEventHandler(pHandlerCall, pEvent);
ClearKeyboardFocus(window);
_this->EndUserInput(false);
return noErr;
}
}
break;
case kEventMouseMoved:
TXNAdjustCursor(_this->mTextEntryView, NULL);
return noErr;
case kEventMouseWheelMoved:
return noErr;
}
break;
}
case kEventClassWindow:
{
WindowRef window;
GetEventParameter (pEvent, kEventParamDirectObject, typeWindowRef, NULL, sizeof(WindowRef), NULL, &window);
switch (eventKind)
{
case kEventWindowFocusRelinquish:
case kEventWindowClosed:
case kEventWindowDeactivated:
CallNextEventHandler(pHandlerCall, pEvent);
ClearKeyboardFocus(window);
_this->EndUserInput(false);
return noErr;
}
break;
}
}
return eventNotHandledErr;
}
/* YASTControlCarbonEventHandler defines the main entry point for all
of the carbon event handlers installed for the YASTControl. */
static pascal OSStatus YASTControlCarbonEventHandler(
EventHandlerCallRef myHandler,
EventRef event,
void* userData) {
#pragma unused ( myHandler )
OSStatus err, returnedResult;
YASTControlVarsPtr varsp;
UInt32 eclass, ekind;
/* set up locals */
eclass = GetEventClass(event);
ekind = GetEventKind(event);
varsp = (YASTControlVarsPtr) userData;
returnedResult = eventNotHandledErr;
/* dispatch the event by class*/
switch (eclass) {
case kEventClassWindow:
if ( ekind == kEventWindowCursorChange ) {
Point where;
UInt32 modifiers;
Boolean cursorWasSet;
/* get the mouse position */
err = GetEventParameter( event, kEventParamMouseLocation,
typeQDPoint, NULL, sizeof(where), NULL, &where);
if (err == noErr) {
err = GetEventParameter( event, kEventParamKeyModifiers,
typeUInt32, NULL, sizeof(modifiers), NULL, &modifiers);
if (err == noErr) {
SetPort(varsp->fGrafPtr);
GlobalToLocal(&where);
if (PtInRect(where, &varsp->fRBounds)) {
err = HandleControlSetCursor( varsp->fControl, where, modifiers, &cursorWasSet);
if (err != noErr) cursorWasSet = false;
if ( ! cursorWasSet ) InitCursor();
returnedResult = noErr;
}
}
}
}
break;
case kEventClassMouse:
/* handle mouse downs in the control, but only if the
control is in focus. */
if ( ekind == kEventMouseDown ) {
EventRecord outEvent;
if ( varsp->fInFocus ) {
if (ConvertEventRefToEventRecord( event, &outEvent)) {
TXNClick( varsp->fTXNObject, &outEvent);
}
returnedResult = noErr;
}
}
break;
case kEventClassTextInput:
if ( ekind == kEventUnicodeForKeyEvent
&& varsp->fTabMovesFocus) {
UniChar mUnicodeText[8];
UInt32 bytecount, nchars;
/* get the character */
err = GetEventParameter(event, kEventParamTextInputSendText,
typeUnicodeText, NULL, sizeof(mUnicodeText),
&bytecount, (char*) mUnicodeText);
if ((err == noErr)
&& (bytecount >= sizeof(UniChar))) {
nchars = ( bytecount / sizeof(UniChar) );
/* if it's not the tab key, forget it... */
if ( mUnicodeText[0] == '\t' ) {
EventRef rawKeyEvent;
Boolean shiftDown;
/* is the shift key held down? */
shiftDown = false;
err = GetEventParameter(event, kEventParamTextInputSendKeyboardEvent,
typeEventRef, NULL, sizeof(rawKeyEvent), NULL, &rawKeyEvent);
if (err == noErr) {
UInt32 modifiers;
err = GetEventParameter(rawKeyEvent, kEventParamKeyModifiers,
typeUInt32, NULL, sizeof(modifiers), NULL, &modifiers);
if (err == noErr) {
shiftDown = ( (modifiers & shiftKey) != 0 );
}
}
/* advance the keyboard focus, backwards if shift is down */
if (shiftDown)
ReverseKeyboardFocus( varsp->fWindow );
else AdvanceKeyboardFocus( varsp->fWindow );
/* noErr lets the CEM know we handled the event */
returnedResult = noErr;
}
}
}
break;
case kEventClassControl:
switch (ekind) {
case kEventControlSetFocusPart:
{ ControlPartCode thePart;
err = GetEventParameter(event, kEventParamControlPart,
typeControlPartCode, NULL, sizeof(thePart), NULL, &thePart);
if (err == noErr) {
switch (thePart) {
default:
case kControlFocusNoPart: /* turn off focus */
if ( varsp->fInFocus ) {
TXNFocus( varsp->fTXNObject, false);
varsp->fInFocus = false;
}
thePart = kControlFocusNoPart;
break;
case kYASTControlOnlyPart: /* turn on focus */
if ( ! varsp->fInFocus ) {
TXNFocus( varsp->fTXNObject, true);
varsp->fInFocus = true;
}
thePart = kYASTControlOnlyPart;
break;
case kControlFocusPrevPart: /* toggle focus on/off */
case kControlFocusNextPart:
varsp->fInFocus = ! varsp->fInFocus;
TXNFocus( varsp->fTXNObject, varsp->fInFocus);
thePart = (varsp->fInFocus ? kYASTControlOnlyPart : kControlFocusNoPart);
break;
}
SetPort(varsp->fGrafPtr);
/* calculate the next highlight state */
SetTextActivation(varsp, varsp->fIsActive && varsp->fInFocus);
/* redraw the text fram and focus rectangle to indicate the
new focus state */
DrawThemeEditTextFrame(&varsp->fRTextOutline,
varsp->fIsActive ? kThemeStateActive: kThemeStateInactive);
RedrawFocusOutline(varsp);
}
/* pass back the foocus part code */
err = SetEventParameter( event, kEventParamControlPart,
typeControlPartCode, sizeof(thePart), &thePart);
returnedResult = err;
}
break;
case kEventControlHitTest:
/* this event does not necessairly mean that a mouse click
has occured. Here we are simply testing to see if a particular
point is located inside of the control. More complicated controls
would return different part codes for different parts of
themselves; but, since YASTControls only advertise one part, the
hit test here is more or less a boolean test. */
{ ControlPartCode thePart;
Point where;
err = GetEventParameter(event, kEventParamMouseLocation,
typeQDPoint, NULL, sizeof(where), NULL, &where);
if (err == noErr) {
if (PtInRect(where, &varsp->fRTextArea)) {
thePart = kYASTControlOnlyPart;
} else thePart = 0;
err = SetEventParameter( event, kEventParamControlPart,
typeControlPartCode, sizeof(thePart), &thePart);
}
returnedResult = err;
}
break;
case kEventControlClick:
/* here we handle focus switching on the control. Actual tracking
of mouse down events in the control is performed in the kEventClassMouse
mouse down handler above. */
if ( ! varsp->fInFocus ) {
SetKeyboardFocus(varsp->fWindow, varsp->fControl, kYASTControlOnlyPart);
returnedResult = noErr;
}
break;
case kEventControlBoundsChanged:
/* we moved, or switched size - recalculate our rectangles */
{ Rect bounds;
err = GetEventParameter(event, kEventParamCurrentBounds,
typeQDRectangle, NULL, sizeof(bounds), NULL, &bounds);
if (err == noErr) {
YASTControlCalculateBounds(varsp, &bounds);
TXNSetFrameBounds( varsp->fTXNObject,
varsp->fRTextArea.top, varsp->fRTextArea.left,
varsp->fRTextArea.bottom, varsp->fRTextArea.right,
varsp->fTXNFrameID);
}
}
break;
case kEventControlActivate:
case kEventControlDeactivate:
{ SetPort(varsp->fGrafPtr);
varsp->fIsActive = (ekind == kEventControlActivate);
SetTextActivation(varsp, varsp->fIsActive && varsp->fInFocus);
/* redraw the frame */
DrawThemeEditTextFrame(&varsp->fRTextOutline,
varsp->fIsActive ? kThemeStateActive: kThemeStateInactive);
RedrawFocusOutline(varsp);
returnedResult = noErr;
}
break;
case kEventControlDraw:
/* redraw the control */
SetPort(varsp->fGrafPtr);
/* update the text region */
TXNDraw(varsp->fTXNObject, NULL);
/* restore the drawing environment */
/* draw the text frame and focus frame (if necessary) */
DrawThemeEditTextFrame(&varsp->fRTextOutline,
varsp->fIsActive ? kThemeStateActive: kThemeStateInactive);
RedrawFocusOutline(varsp);
returnedResult = noErr;
break;
case kEventControlSetCursor:
/* cursor adjustment */
{ SetPortWindowPort(varsp->fWindow);
TXNAdjustCursor( varsp->fTXNObject, varsp->fRTextOutlineRegion);
returnedResult = noErr;
}
break;
case kEventControlDispose:
/* RemoveEventHandler(varsp->fControlEvents); -- this call has been
left out on purpose because it will be called automatically when the
control is disposed. */
RemoveEventHandler(varsp->fWindowEvents);
TXNDeleteObject(varsp->fTXNObject);
DisposeRgn(varsp->fRTextOutlineRegion);
free(varsp);
/* returnedResult = noErr; -- this has been left out on purpose
because we want the dispatching to continue and dispose of the control */
break;
case kEventControlSetData:
{ ResType inTagName;
Size inBufferSize;
void * inBuffer;
err = GetEventParameter( event, kEventParamControlDataTag, typeEnumeration,
NULL, sizeof(inTagName), NULL, &inTagName);
if (err == noErr) {
err = GetEventParameter( event, kEventParamControlDataBuffer, typePtr,
NULL, sizeof(inBuffer), NULL, &inBuffer);
if (err == noErr) {
err = GetEventParameter( event, kEventParamControlDataBufferSize, typeLongInteger,
NULL, sizeof(inBufferSize), NULL, &inBufferSize);
if (err == noErr) {
err = YASTControlSetData(varsp, inTagName, inBuffer, inBufferSize);
}
}
}
returnedResult = err;
}
break;
case kEventControlGetData:
{ ResType inTagName;
Size inBufferSize, outBufferSize;
void * inBuffer;
err = GetEventParameter( event, kEventParamControlDataTag, typeEnumeration,
NULL, sizeof(inTagName), NULL, &inTagName);
if (err == noErr) {
err = GetEventParameter( event, kEventParamControlDataBuffer, typePtr,
NULL, sizeof(inBuffer), NULL, &inBuffer);
if (err == noErr) {
err = GetEventParameter( event, kEventParamControlDataBufferSize, typeLongInteger,
NULL, sizeof(inBufferSize), NULL, &inBufferSize);
if (err == noErr) {
err = YASTControlGetData(varsp, inTagName, inBuffer, inBufferSize, &outBufferSize);
if (err == noErr) {
err = SetEventParameter( event, kEventParamControlDataBufferSize,
typeLongInteger, sizeof(outBufferSize), &outBufferSize);
}
}
}
}
returnedResult = err;
}
break;
}
break;
case kEventClassCommand:
if ( ekind == kEventProcessCommand ) {
HICommand command;
err = GetEventParameter( event, kEventParamDirectObject,
typeHICommand, NULL, sizeof(command), NULL, &command);
if (err == noErr) {
switch (command.commandID) {
case kHICommandUndo:
TXNUndo(varsp->fTXNObject);
returnedResult = noErr;
break;
case kHICommandRedo:
TXNRedo(varsp->fTXNObject);
returnedResult = noErr;
break;
case kHICommandCut:
ClearCurrentScrap();
err = TXNCut(varsp->fTXNObject);
if (err == noErr)
err = TXNConvertToPublicScrap();
returnedResult = err;
break;
case kHICommandCopy:
ClearCurrentScrap();
err = TXNCopy(varsp->fTXNObject);
if (err == noErr)
err = TXNConvertToPublicScrap();
returnedResult = err;
break;
case kHICommandPaste:
err = TXNConvertFromPublicScrap();
if (err == noErr)
err = TXNPaste(varsp->fTXNObject);
returnedResult = err;
break;
case kHICommandClear:
err = TXNClear(varsp->fTXNObject);
returnedResult = err;
break;
case kHICommandSelectAll:
err = TXNSetSelection(varsp->fTXNObject, kTXNStartOffset, kTXNEndOffset);
returnedResult = err;
break;
}
}
} else if ( ekind == kEventCommandUpdateStatus ) {
HICommand command;
TXNOffset oStartOffset, oEndOffset;
TXNActionKey oActionKey;
err = GetEventParameter( event, kEventParamDirectObject, typeHICommand,
NULL, sizeof(command), NULL, &command);
if ((err == noErr)
&& ((command.attributes & kHICommandFromMenu) != 0)) {
switch (command.commandID) {
case kHICommandUndo:
if (TXNCanUndo(varsp->fTXNObject, &oActionKey)) {
EnableMenuItem(command.menu.menuRef, 0); /* required pre OS 10.2 */
EnableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
} else DisableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
returnedResult = noErr;
break;
case kHICommandRedo:
if (TXNCanRedo(varsp->fTXNObject, &oActionKey)) {
EnableMenuItem(command.menu.menuRef, 0); /* required pre OS 10.2 */
EnableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
} else DisableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
returnedResult = noErr;
break;
case kHICommandCut:
case kHICommandCopy:
case kHICommandClear:
TXNGetSelection(varsp->fTXNObject, &oStartOffset, &oEndOffset);
if (oStartOffset != oEndOffset) {
EnableMenuItem(command.menu.menuRef, 0); /* required pre OS 10.2 */
EnableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
} else DisableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
returnedResult = noErr;
break;
case kHICommandPaste:
if (TXNIsScrapPastable()) {
EnableMenuItem(command.menu.menuRef, 0); /* required pre OS 10.2 */
EnableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
} else DisableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
returnedResult = noErr;
break;
case kHICommandSelectAll:
if(TXNDataSize(varsp->fTXNObject) > 0) {
EnableMenuItem(command.menu.menuRef, 0); /* required pre OS 10.2 */
EnableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
} else DisableMenuItem(command.menu.menuRef, command.menu.menuItemIndex);
returnedResult = noErr;
break;
}
}
}
break;
}
return returnedResult;
}