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[qwaq] Make the editor show the cursor

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As well as showing the cursor, it keeps the cursor's position up to date
(for now, just at 0,y as only gotoLine is implemented, no cursor motion
yet)
This commit is contained in:
Bill Currie 2021-06-07 16:20:15 +09:00
parent 5892008306
commit 551236511d
1 changed files with 25 additions and 12 deletions
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37
ruamoko/qwaq/editor/editor.r
View file

@ -19,6 +19,7 @@
growMode = gfGrowHi;
options = ofCanFocus | ofRelativeEvents;
[onViewScrolled addListener:self :@selector(onScroll:)];
[self setCursorVisible:1];
return self;
}
@ -63,7 +64,8 @@
return self;
}
static int handleEvent (Editor *self, qwaq_event_t *event)
static int
handleEvent (Editor *self, qwaq_event_t *event)
{
if (event.what & qe_mouse) {
if (event.what == qe_mouseclick) {
@ -159,6 +161,7 @@ static int handleEvent (Editor *self, qwaq_event_t *event)
base_index = [buffer prevLine:base_index :base.y - target];
}
base.y = target;
[self moveCursor: {cursor.x - base.x, cursor.y - base.y}];
return self;
}
@ -178,19 +181,27 @@ static int handleEvent (Editor *self, qwaq_event_t *event)
-recenter:(int) force
{
if (!force) {
if (cursor.y >= base.y && cursor.y - base.y < ylen) {
return self;
if (force || cursor.y < base.y || cursor.y - base.y >= ylen) {
unsigned target;
if (cursor.y < ylen / 2) {
target = 0;
} else {
target = cursor.y - ylen / 2;
}
[self scrollTo:target];
}
return self;
}
static void
trackCursor (Editor *self)
{
unsigned cx = [self.buffer charPos:self.line_index at:self.char_index];
if (self.cursor.x != cx) {
if (self.char_index < [self.buffer getEOT]) {
int c = [self.buffer getChar:self.char_index];
}
}
unsigned target;
if (cursor.y < ylen / 2) {
target = 0;
} else {
target = cursor.y - ylen / 2;
}
[self scrollTo:target];
return self;
}
-gotoLine:(unsigned) line
@ -201,7 +212,9 @@ static int handleEvent (Editor *self, qwaq_event_t *event)
line_index = [buffer prevLine:line_index :cursor.y - line];
}
cursor.y = line;
char_index = [buffer charPtr:line_index at:cursor.x];
[self recenter: 0];
[self moveCursor: {cursor.x - base.x, cursor.y - base.y}];
return self;
}