void KprLabelFlagged(KprLabel self)
{
if (KprContentIsFocus((KprContent)self)) {
KprContentInvalidate((KprContent)self);
KprContentReflow((KprContent)self, kprPositionChanged);
}
}
void KPR_canvas_getContext(xsMachine *the)
{
KprCanvas self = xsGetHostData(xsThis);
if (self->cnv) {
FskCanvas2dContext ctx = FskCanvasGet2dContext(self->cnv);
xsResult = xsNewInstanceOf(xsGet(xsGet(xsGlobal, xsID("KPR")), xsID("canvasRenderingContext2D")));
xsSetHostData(xsResult, ctx);
xsSet(xsResult, xsID("canvas"), xsThis);
KprContentInvalidate((KprContent)self);
}
}
void KprLabelActivated(void* it, Boolean activateIt)
{
KprLabel self = it;
if (KprContentIsFocus(it)) {
KprContentInvalidate(it);
if (activateIt)
KprContentReflow(it, kprPositionChanged);
else
KprShellSetCaret(self->shell, self, NULL);
KprShellKeyActivate(self->shell, activateIt);
}
}
FskErr KprLabelSetText(KprLabel self, char* text, UInt32 size)
{
FskErr err = kFskErrNone;
char* buffer;
bailIfError(FskMemPtrNew(size + 1, &buffer));
if (size > 0)
FskMemMove(buffer, text, size);
buffer[size] = 0;
self->length = fxUnicodeLength(text);
self->from = self->to = 0;
FskMemPtrDispose(self->text);
self->text = buffer;
bail:
if (self->shell) {
KprLabelMeasureSelection(self);
KprContentInvalidate((KprContent)self);
KprContentReflow((KprContent)self, kprSizeChanged);
}
return err;
}
FskErr KprLabelInsertStringWithLength(KprLabel self, char* text, UInt32 size)
{
FskErr err = kFskErrNone;
UInt32 oldSize = FskStrLen(self->text);
SInt32 fromSize = fxUnicodeToUTF8Offset(self->text, self->from);
SInt32 toSize = fxUnicodeToUTF8Offset(self->text, self->to);
UInt32 newSize = oldSize - (toSize - fromSize) + size;
char* buffer;
bailIfError(FskMemPtrNew(newSize + 1, &buffer));
if (fromSize > 0)
FskMemMove(buffer, self->text, fromSize);
if (size > 0)
FskMemMove(buffer + fromSize, text, size);
if (oldSize - toSize > 0)
FskMemMove(buffer + fromSize + size, self->text + toSize, oldSize - toSize);
buffer[newSize] = 0;
FskMemPtrDispose(self->text);
if (self->flags & kprTextHidden) {
if ((self->from == self->length) && (self->to == self->length) && (fxUTF8ToUnicodeOffset(text, size) == 1)) {
self->flags |= kprTextShowLast;
if (!self->showLastCallback)
FskTimeCallbackNew(&self->showLastCallback);
FskTimeCallbackScheduleFuture(self->showLastCallback, 1, 0, KprLabelShowLastCallback, self);
}
else {
if (self->showLastCallback)
FskTimeCallbackRemove(self->showLastCallback);
self->flags &= ~kprTextShowLast;
}
}
self->text = buffer;
self->length = fxUnicodeLength(buffer);
self->from = self->to = fxUTF8ToUnicodeOffset(buffer, fromSize + size);
bail:
if (self->shell) {
KprLabelMeasureSelection(self);
KprContentInvalidate((KprContent)self);
KprContentReflow((KprContent)self, kprSizeChanged);
}
return err;
}
FskErr KprLabelSelect(KprLabel self, SInt32 selectionOffset, UInt32 selectionLength)
{
SInt32 from = selectionOffset;
SInt32 to = selectionOffset + selectionLength;
if (from < 0)
from = 0;
else if (from > (SInt32)self->length)
from = self->length;
if (to < 0)
to = 0;
else if (to > (SInt32)self->length)
to = self->length;
self->from = from;
self->to = to;
if (self->shell) {
KprLabelMeasureSelection(self);
KprContentInvalidate((KprContent)self);
KprContentReflow((KprContent)self, kprPositionChanged);
}
return kFskErrNone;
}