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-rw-r--r--src/engine/textedit.h337
1 files changed, 97 insertions, 240 deletions
diff --git a/src/engine/textedit.h b/src/engine/textedit.h
index 0dcda1d..742fd33 100644
--- a/src/engine/textedit.h
+++ b/src/engine/textedit.h
@@ -1,31 +1,21 @@
-struct editline
-{
+struct editline {
enum { CHUNKSIZE = 256 };
-
char *text;
int len, maxlen;
-
editline() : text(NULL), len(0), maxlen(0) {}
- editline(const char *init) : text(NULL), len(0), maxlen(0)
- {
+ editline(const char *init) : text(NULL), len(0), maxlen(0) {
set(init);
}
-
bool empty() { return len <= 0; }
-
- void clear()
- {
+ void clear() {
DELETEA(text);
len = maxlen = 0;
}
-
- bool grow(int total, const char *fmt = "", ...)
- {
+ bool grow(int total, const char *fmt = "", ...) {
if(total + 1 <= maxlen) return false;
maxlen = (total + CHUNKSIZE) - total%CHUNKSIZE;
char *newtext = new char[maxlen];
- if(fmt)
- {
+ if(fmt) {
va_list args;
va_start(args, fmt);
vformatstring(newtext, fmt, args, maxlen);
@@ -36,69 +26,52 @@ struct editline
text = newtext;
return true;
}
-
- void set(const char *str, int slen = -1)
- {
- if(slen < 0)
- {
+ void set(const char *str, int slen = -1) {
+ if(slen < 0) {
slen = strlen(str);
if(!grow(slen, "%s", str)) memcpy(text, str, slen + 1);
}
- else
- {
+ else {
grow(slen);
memcpy(text, str, slen);
text[slen] = '\0';
}
len = slen;
}
-
- void prepend(const char *str)
- {
+ void prepend(const char *str) {
int slen = strlen(str);
- if(!grow(slen + len, "%s%s", str, text ? text : ""))
- {
+ if(!grow(slen + len, "%s%s", str, text ? text : "")) {
memmove(&text[slen], text, len + 1);
memcpy(text, str, slen + 1);
}
len += slen;
}
-
- void append(const char *str)
- {
+ void append(const char *str) {
int slen = strlen(str);
if(!grow(len + slen, "%s%s", text ? text : "", str)) memcpy(&text[len], str, slen + 1);
len += slen;
}
-
- bool read(stream *f, int chop = -1)
- {
+ bool read(stream *f, int chop = -1) {
if(chop < 0) chop = INT_MAX; else chop++;
set("");
- while(len + 1 < chop && f->getline(&text[len], min(maxlen, chop) - len))
- {
+ while(len + 1 < chop && f->getline(&text[len], min(maxlen, chop) - len)) {
len += strlen(&text[len]);
- if(len > 0 && text[len-1] == '\n')
- {
+ if(len > 0 && text[len-1] == '\n') {
text[--len] = '\0';
return true;
}
if(len + 1 >= maxlen && len + 1 < chop) grow(len + CHUNKSIZE, "%s", text);
}
- if(len + 1 >= chop)
- {
+ if(len + 1 >= chop) {
char buf[CHUNKSIZE];
- while(f->getline(buf, sizeof(buf)))
- {
+ while(f->getline(buf, sizeof(buf))) {
int blen = strlen(buf);
if(blen > 0 && buf[blen-1] == '\n') return true;
}
}
return len > 0;
}
-
- void del(int start, int count)
- {
+ void del(int start, int count) {
if(!text) return;
if(start < 0) { count += start; start = 0; }
if(count <= 0 || start >= len) return;
@@ -106,16 +79,12 @@ struct editline
memmove(&text[start], &text[start+count], len + 1 - (start + count));
len -= count;
}
-
- void chop(int newlen)
- {
+ void chop(int newlen) {
if(!text) return;
len = clamp(newlen, 0, len);
text[len] = '\0';
}
-
- void insert(char *str, int start, int count = 0)
- {
+ void insert(char *str, int start, int count = 0) {
if(count <= 0) count = strlen(str);
start = clamp(start, 0, len);
grow(len + count, "%s", text ? text : "");
@@ -123,12 +92,9 @@ struct editline
memcpy(&text[start], str, count);
len += count;
}
-
- void combinelines(vector<editline> &src)
- {
+ void combinelines(vector<editline> &src) {
if(src.empty()) set("");
- else loopv(src)
- {
+ else loopv(src) {
if(i) append("\n");
if(!i) set(src[i].text, src[i].len);
else insert(src[i].text, len, src[i].len);
@@ -136,102 +102,77 @@ struct editline
}
};
-struct editor
-{
+struct editor {
int mode; //editor mode - 1= keep while focused, 2= keep while used in gui, 3= keep forever (i.e. until mode changes)
bool active, rendered;
const char *name;
const char *filename;
-
int cx, cy; // cursor position - ensured to be valid after a region() or currentline()
int mx, my; // selection mark, mx=-1 if following cursor - avoid direct access, instead use region()
int maxx, maxy; // maxy=-1 if unlimited lines, 1 if single line editor
-
int scrolly; // vertical scroll offset
-
bool linewrap;
int pixelwidth; // required for up/down/hit/draw/bounds
int pixelheight; // -1 for variable sized, i.e. from bounds()
-
vector<editline> lines; // MUST always contain at least one line!
-
editor(const char *name, int mode, const char *initval) :
mode(mode), active(true), rendered(false), name(newstring(name)), filename(NULL),
- cx(0), cy(0), mx(-1), maxx(-1), maxy(-1), scrolly(0), linewrap(false), pixelwidth(-1), pixelheight(-1)
- {
+ cx(0), cy(0), mx(-1), maxx(-1), maxy(-1), scrolly(0), linewrap(false), pixelwidth(-1), pixelheight(-1) {
//printf("editor %08x '%s'\n", this, name);
lines.add().set(initval ? initval : "");
}
-
- ~editor()
- {
+ ~editor() {
//printf("~editor %08x '%s'\n", this, name);
DELETEA(name);
DELETEA(filename);
clear(NULL);
}
-
- void clear(const char *init = "")
- {
+ void clear(const char *init = "") {
cx = cy = 0;
mark(false);
loopv(lines) lines[i].clear();
lines.shrink(0);
if(init) lines.add().set(init);
}
-
- void setfile(const char *fname)
- {
+ void setfile(const char *fname) {
DELETEA(filename);
if(fname) filename = newstring(fname);
}
-
- void load()
- {
+ void load() {
if(!filename) return;
clear(NULL);
stream *file = openutf8file(filename, "r");
- if(file)
- {
+ if(file) {
while(lines.add().read(file, maxx) && (maxy < 0 || lines.length() <= maxy));
lines.pop().clear();
delete file;
}
if(lines.empty()) lines.add().set("");
}
-
- void save()
- {
+ void save() {
if(!filename) return;
stream *file = openutf8file(filename, "w");
if(!file) return;
loopv(lines) file->putline(lines[i].text);
delete file;
}
-
- void mark(bool enable)
- {
+ void mark(bool enable) {
mx = (enable) ? cx : -1;
my = cy;
}
-
- void selectall()
- {
+ void selectall() {
mx = my = INT_MAX;
cx = cy = 0;
}
-
// constrain results to within buffer - s=start, e=end, return true if a selection range
// also ensures that cy is always within lines[] and cx is valid
- bool region(int &sx, int &sy, int &ex, int &ey)
- {
+ bool region(int &sx, int &sy, int &ex, int &ey) {
int n = lines.length();
ASSERT(n != 0);
if(cy < 0) cy = 0; else if(cy >= n) cy = n-1;
int len = lines[cy].len;
if(cx < 0) cx = 0; else if(cx > len) cx = len;
- if(mx >= 0)
- {
+ if(mx >= 0) {
if(my < 0) my = 0; else if(my >= n) my = n-1;
len = lines[my].len;
if(mx > len) mx = len;
@@ -244,34 +185,26 @@ struct editor
else if(sy==ey && sx > ex) swap(sx, ex);
return (sx != ex) || (sy != ey);
}
-
bool region() { int sx, sy, ex, ey; return region(sx, sy, ex, ey); }
-
// also ensures that cy is always within lines[] and cx is valid
- editline &currentline()
- {
+ editline &currentline() {
int n = lines.length();
ASSERT(n != 0);
if(cy < 0) cy = 0; else if(cy >= n) cy = n-1;
if(cx < 0) cx = 0; else if(cx > lines[cy].len) cx = lines[cy].len;
return lines[cy];
}
-
- void copyselectionto(editor *b)
- {
+ void copyselectionto(editor *b) {
if(b==this) return;
-
b->clear(NULL);
int sx, sy, ex, ey;
region(sx, sy, ex, ey);
- loopi(1+ey-sy)
- {
+ loopi(1+ey-sy) {
if(b->maxy != -1 && b->lines.length() >= b->maxy) break;
int y = sy+i;
char *line = lines[y].text;
int len = lines[y].len;
- if(y == sy && y == ey)
- {
+ if(y == sy && y == ey) {
line += sx;
len = ex - sx;
}
@@ -281,15 +214,12 @@ struct editor
}
if(b->lines.empty()) b->lines.add().set("");
}
-
- char *tostring()
- {
+ char *tostring() {
int len = 0;
loopv(lines) len += lines[i].len + 1;
char *str = newstring(len);
int offset = 0;
- loopv(lines)
- {
+ loopv(lines) {
editline &l = lines[i];
memcpy(&str[offset], l.text, l.len);
offset += l.len;
@@ -298,19 +228,15 @@ struct editor
str[offset] = '\0';
return str;
}
-
- char *selectiontostring()
- {
+ char *selectiontostring() {
vector<char> buf;
int sx, sy, ex, ey;
region(sx, sy, ex, ey);
- loopi(1+ey-sy)
- {
+ loopi(1+ey-sy) {
int y = sy+i;
char *line = lines[y].text;
int len = lines[y].len;
- if(y == sy && y == ey)
- {
+ if(y == sy && y == ey) {
line += sx;
len = ex - sx;
}
@@ -322,28 +248,21 @@ struct editor
buf.add('\0');
return newstring(buf.getbuf(), buf.length()-1);
}
-
- void removelines(int start, int count)
- {
+ void removelines(int start, int count) {
loopi(count) lines[start+i].clear();
lines.remove(start, count);
}
-
- bool del() // removes the current selection (if any)
- {
+ bool del() { // removes the current selection (if any) {
int sx, sy, ex, ey;
- if(!region(sx, sy, ex, ey))
- {
+ if(!region(sx, sy, ex, ey)) {
mark(false);
return false;
}
- if(sy == ey)
- {
+ if(sy == ey) {
if(sx == 0 && ex == lines[ey].len) removelines(sy, 1);
else lines[sy].del(sx, ex - sx);
}
- else
- {
+ else {
if(ey > sy+1) { removelines(sy+1, ey-(sy+1)); ey = sy+1; }
if(ex == lines[ey].len) removelines(ey, 1); else lines[ey].del(0, ex);
if(sx == 0) removelines(sy, 1); else lines[sy].del(sx, lines[sy].len - sx);
@@ -353,22 +272,17 @@ struct editor
cx = sx;
cy = sy;
editline &current = currentline();
- if(cx >= current.len && cy < lines.length() - 1)
- {
+ if(cx >= current.len && cy < lines.length() - 1) {
current.append(lines[cy+1].text);
removelines(cy + 1, 1);
}
return true;
}
-
- void insert(char ch)
- {
+ void insert(char ch) {
del();
editline &current = currentline();
- if(ch == '\n')
- {
- if(maxy == -1 || cy < maxy-1)
- {
+ if(ch == '\n') {
+ if(maxy == -1 || cy < maxy-1) {
editline newline(&current.text[cx]);
current.chop(cx);
cy = min(lines.length(), cy+1);
@@ -377,49 +291,36 @@ struct editor
else current.chop(cx);
cx = 0;
}
- else
- {
+ else {
int len = current.len;
if(maxx >= 0 && len > maxx-1) len = maxx-1;
if(cx <= len) current.insert(&ch, cx++, 1);
}
}
-
- void insert(const char *s)
- {
+ void insert(const char *s) {
while(*s) insert(*s++);
}
-
- void insertallfrom(editor *b)
- {
+ void insertallfrom(editor *b) {
if(b==this) return;
-
del();
-
- if(b->lines.length() == 1 || maxy == 1)
- {
+ if(b->lines.length() == 1 || maxy == 1) {
editline &current = currentline();
char *str = b->lines[0].text;
int slen = b->lines[0].len;
if(maxx >= 0 && b->lines[0].len + cx > maxx) slen = maxx-cx;
- if(slen > 0)
- {
+ if(slen > 0) {
int len = current.len;
if(maxx >= 0 && slen + cx + len > maxx) len = max(0, maxx-(cx+slen));
current.insert(str, cx, slen);
cx += slen;
}
}
- else
- {
- loopv(b->lines)
- {
- if(!i)
- {
+ else {
+ loopv(b->lines) {
+ if(!i) {
lines[cy++].append(b->lines[i].text);
}
- else if(i >= b->lines.length())
- {
+ else if(i >= b->lines.length()) {
cx = b->lines[i].len;
lines[cy].prepend(b->lines[i].text);
}
@@ -427,14 +328,10 @@ struct editor
}
}
}
-
- void key(int code)
- {
- switch(code)
- {
+ void key(int code) {
+ switch(code) {
case SDLK_UP:
- if(linewrap)
- {
+ if(linewrap) {
int x, y;
char *str = currentline().text;
text_pos(str, cx+1, x, y, pixelwidth);
@@ -443,8 +340,7 @@ struct editor
cy--;
break;
case SDLK_DOWN:
- if(linewrap)
- {
+ if(linewrap) {
int x, y, width, height;
char *str = currentline().text;
text_pos(str, cx, x, y, pixelwidth);
@@ -479,24 +375,22 @@ struct editor
cx++;
break;
case SDLK_DELETE:
- if(!del())
- {
+ if(!del()) {
editline &current = currentline();
if(cx < current.len) current.del(cx, 1);
- else if(cy < lines.length()-1)
- { //combine with next line
+ else if(cy < lines.length()-1) {
+ //combine with next line
current.append(lines[cy+1].text);
removelines(cy+1, 1);
}
}
break;
case SDLK_BACKSPACE:
- if(!del())
- {
+ if(!del()) {
editline &current = currentline();
if(cx > 0) current.del(--cx, 1);
- else if(cy > 0)
- { //combine with previous line
+ else if(cy > 0) {
+ //combine with previous line
cx = lines[cy-1].len;
lines[cy-1].append(current.text);
removelines(cy--, 1);
@@ -514,24 +408,17 @@ struct editor
break;
}
}
-
- void input(const char *str, int len)
- {
+ void input(const char *str, int len) {
loopi(len) insert(str[i]);
}
-
- void hit(int hitx, int hity, bool dragged)
- {
+ void hit(int hitx, int hity, bool dragged) {
int maxwidth = linewrap?pixelwidth:-1;
int h = 0;
- for(int i = scrolly; i < lines.length(); i++)
- {
+ for(int i = scrolly; i < lines.length(); i++) {
int width, height;
text_bounds(lines[i].text, width, height, maxwidth);
if(h + height > pixelheight) break;
-
- if(hity >= h && hity <= h+height)
- {
+ if(hity >= h && hity <= h+height) {
int x = text_visible(lines[i].text, hitx, hity-h, maxwidth);
if(dragged) { mx = x; my = i; } else { cx = x; cy = i; };
break;
@@ -539,13 +426,10 @@ struct editor
h+=height;
}
}
-
- int limitscrolly()
- {
+ int limitscrolly() {
int maxwidth = linewrap?pixelwidth:-1;
int slines = lines.length();
- for(int ph = pixelheight; slines > 0 && ph > 0;)
- {
+ for(int ph = pixelheight; slines > 0 && ph > 0;) {
int width, height;
text_bounds(lines[slines-1].text, width, height, maxwidth);
if(height > ph) break;
@@ -554,39 +438,30 @@ struct editor
}
return slines;
}
-
- void draw(int x, int y, int color, bool hit)
- {
+ void draw(int x, int y, int color, bool hit) {
int maxwidth = linewrap?pixelwidth:-1;
-
int sx, sy, ex, ey;
bool selection = region(sx, sy, ex, ey);
-
// fix scrolly so that <cx, cy> is always on screen
if(cy < scrolly) scrolly = cy;
- else
- {
+ else {
if(scrolly < 0) scrolly = 0;
int h = 0;
- for(int i = cy; i >= scrolly; i--)
- {
+ for(int i = cy; i >= scrolly; i--) {
int width, height;
text_bounds(lines[i].text, width, height, maxwidth);
if(h + height > pixelheight) { scrolly = i+1; break; }
h += height;
}
}
-
- if(selection)
- {
+ if(selection) {
// convert from cursor coords into pixel coords
int psx, psy, pex, pey;
text_pos(lines[sy].text, sx, psx, psy, maxwidth);
text_pos(lines[ey].text, ex, pex, pey, maxwidth);
int maxy = lines.length();
int h = 0;
- for(int i = scrolly; i < maxy; i++)
- {
+ for(int i = scrolly; i < maxy; i++) {
int width, height;
text_bounds(lines[i].text, width, height, maxwidth);
if(h + height > pixelheight) { maxy = i; break; }
@@ -595,31 +470,26 @@ struct editor
h += height;
}
maxy--;
-
- if(ey >= scrolly && sy <= maxy)
- {
+ if(ey >= scrolly && sy <= maxy) {
// crop top/bottom within window
if(sy < scrolly) { sy = scrolly; psy = 0; psx = 0; }
if(ey > maxy) { ey = maxy; pey = pixelheight - FONTH; pex = pixelwidth; }
-
hudnotextureshader->set();
gle::colorub(0xA0, 0x80, 0x80);
gle::defvertex(2);
gle::begin(GL_QUADS);
- if(psy == pey)
- {
+ if(psy == pey) {
gle::attribf(x+psx, y+psy);
gle::attribf(x+pex, y+psy);
gle::attribf(x+pex, y+pey+FONTH);
gle::attribf(x+psx, y+pey+FONTH);
}
- else
- { gle::attribf(x+psx, y+psy);
+ else {
+ gle::attribf(x+psx, y+psy);
gle::attribf(x+psx, y+psy+FONTH);
gle::attribf(x+pixelwidth, y+psy+FONTH);
gle::attribf(x+pixelwidth, y+psy);
- if(pey-psy > FONTH)
- {
+ if(pey-psy > FONTH) {
gle::attribf(x, y+psy+FONTH);
gle::attribf(x+pixelwidth, y+psy+FONTH);
gle::attribf(x+pixelwidth, y+pey);
@@ -634,17 +504,13 @@ struct editor
hudshader->set();
}
}
-
int h = 0;
- for(int i = scrolly; i < lines.length(); i++)
- {
+ for(int i = scrolly; i < lines.length(); i++) {
int width, height;
text_bounds(lines[i].text, width, height, maxwidth);
if(h + height > pixelheight) break;
-
draw_text(lines[i].text, x, y+h, color>>16, (color>>8)&0xFF, color&0xFF, 0xFF, hit&&(cy==i)?cx:-1, maxwidth);
- if(linewrap && height > FONTH) // line wrap indicator
- {
+ if(linewrap && height > FONTH) { // line wrap indicator {
hudnotextureshader->set();
gle::colorub(0x80, 0xA0, 0x80);
gle::defvertex(2);
@@ -666,24 +532,19 @@ static vector <editor*> editors;
static editor *currentfocus() { return editors.length() ? editors.last() : NULL; }
-static void readyeditors()
-{
+static void readyeditors() {
loopv(editors) editors[i]->active = (editors[i]->mode==EDITORFOREVER);
}
-static void flusheditors()
-{
- loopvrev(editors) if(!editors[i]->active)
- {
+static void flusheditors() {
+ loopvrev(editors) if(!editors[i]->active) {
editor *e = editors.remove(i);
DELETEP(e);
}
}
-static editor *useeditor(const char *name, int mode, bool focus, const char *initval = NULL)
-{
- loopv(editors) if(strcmp(editors[i]->name, name) == 0)
- {
+static editor *useeditor(const char *name, int mode, bool focus, const char *initval = NULL) {
+ loopv(editors) if(strcmp(editors[i]->name, name) == 0) {
editor *e = editors[i];
if(focus) { editors.add(e); editors.remove(i); } // re-position as last
e->active = true;
@@ -703,8 +564,7 @@ static editor *useeditor(const char *name, int mode, bool focus, const char *ini
ICOMMAND(textlist, "", (), // @DEBUG return list of all the editors
vector<char> s;
- loopv(editors)
- {
+ loopv(editors) {
if(i > 0) s.put(", ", 2);
s.put(editors[i]->name, strlen(editors[i]->name));
}
@@ -731,19 +591,16 @@ TEXTCOMMAND(textsave, "s", (char *file), // saves the topmost (filename is opti
top->save();
);
TEXTCOMMAND(textload, "s", (char *file), // loads into the topmost editor, returns filename if no args
- if(*file)
- {
+ if(*file) {
top->setfile(path(file, true));
top->load();
}
else if(top->filename) result(top->filename);
);
-TEXTCOMMAND(textinit, "sss", (char *name, char *file, char *initval), // loads into named editor if no file assigned and editor has been rendered
-{
+TEXTCOMMAND(textinit, "sss", (char *name, char *file, char *initval), { // loads into named editor if no file assigned and editor has been rendered {
editor *e = NULL;
loopv(editors) if(!strcmp(editors[i]->name, name)) { e = editors[i]; break; }
- if(e && e->rendered && !e->filename && *file && (e->lines.empty() || (e->lines.length() == 1 && !strcmp(e->lines[0].text, initval))))
- {
+ if(e && e->rendered && !e->filename && *file && (e->lines.empty() || (e->lines.length() == 1 && !strcmp(e->lines[0].text, initval)))) {
e->setfile(path(file, true));
e->load();
}
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