Struct fltk::text::TextBuffer
source · pub struct TextBuffer { /* private fields */ }
Expand description
Wraps a text buffer, Cloning a text buffer invalidates the underlying pointer, thus the no derive(Clone)
Implementations§
source§impl TextBuffer
impl TextBuffer
sourcepub unsafe fn delete(buf: Self)
pub unsafe fn delete(buf: Self)
Deletes the TextBuffer
Safety
The buffer shouldn’t be deleted while the Display widget still needs it
sourcepub unsafe fn delete_buffer(buf: TextBuffer)
pub unsafe fn delete_buffer(buf: TextBuffer)
Deletes the TextBuffer
Safety
The buffer shouldn’t be deleted while the Display widget still needs it
sourcepub unsafe fn from_ptr(ptr: *mut Fl_Text_Buffer) -> Self
pub unsafe fn from_ptr(ptr: *mut Fl_Text_Buffer) -> Self
sourcepub unsafe fn as_ptr(&self) -> *mut Fl_Text_Buffer
pub unsafe fn as_ptr(&self) -> *mut Fl_Text_Buffer
Returns the inner pointer from a text buffer
Safety
Can return multiple mutable pointers to the same buffer
sourcepub fn set_text(&mut self, txt: &str)
pub fn set_text(&mut self, txt: &str)
Sets the text of the buffer
Examples found in repository?
166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
fn menu_cb(m: &mut impl MenuExt) {
if let Ok(mpath) = m.item_pathname(None) {
let ed: text::TextEditor = app::widget_from_id("ed").unwrap();
match mpath.as_str() {
"&File/New\t" => {
STATE.with(|s| {
if !s.buf.text().is_empty() {
let c = dialog::choice2_default(
"Are you sure you want to clear the buffer?",
"Yes",
"No",
"",
);
if c == Some(0) {
s.buf.set_text("");
s.saved = false;
}
}
});
}
"&File/Open...\t" => {
let c = nfc_get_file(dialog::NativeFileChooserType::BrowseFile);
if let Ok(text) = std::fs::read_to_string(&c) {
STATE.with(move |s| {
s.buf.set_text(&text);
s.saved = false;
s.current_file = c.clone();
});
}
}
"&File/Save\t" => {
STATE.with(|s| {
if !s.saved && s.current_file.exists() {
std::fs::write(&s.current_file, s.buf.text()).ok();
}
});
}
"&File/Save as...\t" => {
let c = nfc_get_file(dialog::NativeFileChooserType::BrowseSaveFile);
STATE.with(move |s| {
std::fs::write(&c, s.buf.text()).ok();
s.saved = true;
s.current_file = c.clone();
});
}
"&File/Quit\t" => quit_cb(),
"&Edit/Cut\t" => ed.cut(),
"&Edit/Copy\t" => ed.copy(),
"&Edit/Paste\t" => ed.paste(),
"&Help/About\t" => {
dialog::message_default("A minimal text editor written using fltk-rs!")
}
_ => unreachable!(),
}
}
}
More examples
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
fn apply_style(
&mut self,
pos: Option<i32>,
ins_items: Option<i32>,
del_items: Option<i32>,
repl_start: Option<i32>,
repl_end: Option<i32>,
font: Font,
size: i32,
color: Color,
attr: TextAttr,
text_editor: &mut TextEditor,
) {
let mut style_buffer = match text_editor.style_buffer() {
Some(sb) => sb,
None => TextBuffer::default(),
};
// get existent style or create new one
let style_char =
match self.style_table.iter().position(|s| {
s.font == font && s.size == size && s.color == color && s.attr == attr
}) {
Some(i) => ((i + 65) as u8 as char).to_string(),
None => {
self.style_table.push(StyleTableEntryExt {
color,
font,
size,
attr,
bgcolor: Color::Black,
});
((self.style_table.len() + 64) as u8 as char).to_string()
}
};
// insert, delete or replace char index style to the style_buffer
match ins_items {
Some(n) if n > 0 => {
// insert items with style
style_buffer.insert(pos.unwrap(), style_char.repeat(n as usize).as_str());
}
_ => match del_items {
Some(n) if n > 0 => {
// delete items with style
style_buffer.remove(pos.unwrap(), pos.unwrap() + n);
}
_ => match repl_end {
Some(n) if n > 0 => {
// replace items style
style_buffer.replace(
repl_start.unwrap(),
repl_end.unwrap(),
style_char
.repeat((repl_end.unwrap() - repl_start.unwrap()) as usize)
.as_str(),
);
}
_ => {}
},
},
}
// compact styles on the buffer and reorganize the char index on the style_buffer
let mut style_index = style_buffer
.text()
.chars()
.map(|c| (c as usize) - 65)
.collect::<Vec<usize>>();
style_index.sort_unstable();
style_index.dedup();
for (i, &v) in style_index.iter().enumerate() {
self.style_table.swap(i, v);
style_buffer.set_text(
style_buffer
.text()
.replace(
(v + 65) as u8 as char,
((i + 65) as u8 as char).to_string().as_str(),
)
.as_str(),
);
}
// remove unused indexes
//self.style_table = self.style_table.drain(in_buff.len()..).collect();
self.style_table.truncate(style_index.len());
text_editor.set_highlight_data_ext(style_buffer, self.style_table.to_owned());
// uncomment this line to see that the style_table is compact
// println!("total styles: {}", self.style_table.len());
}
350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437
pub fn launch(&mut self) {
while self.app.wait() {
use Message::*;
if let Some(msg) = self.r.recv() {
match msg {
Changed => {
if !self.modified {
self.modified = true;
self.menu.menu.find_item("&File/Save\t").unwrap().activate();
self.menu.menu.find_item("&File/Quit\t").unwrap().set_label_color(Color::Red);
let name = match &self.filename {
Some(f) => f.to_string_lossy().to_string(),
None => "(Untitled)".to_string(),
};
self.main_win.set_label(&format!("* {name} - RustyEd"));
}
}
New => {
if self.buf.text() != "" {
let clear = if let Some(x) = dialog::choice2(center().0 - 200, center().1 - 100, "File unsaved, Do you wish to continue?", "Yes", "No!", "") {
x == 0
} else {
false
};
if clear {
self.buf.set_text("");
}
}
},
Open => {
let mut dlg = dialog::FileDialog::new(dialog::FileDialogType::BrowseFile);
dlg.set_option(dialog::FileDialogOptions::NoOptions);
dlg.set_filter("*.{txt,rs,toml}");
dlg.show();
let filename = dlg.filename();
if !filename.to_string_lossy().to_string().is_empty() {
if filename.exists() {
match self.buf.load_file(&filename) {
Ok(_) => self.filename = Some(filename),
Err(e) => dialog::alert(center().0 - 200, center().1 - 100, &format!("An issue occured while loading the file: {e}")),
}
} else {
dialog::alert(center().0 - 200, center().1 - 100, "File does not exist!")
}
}
},
Save => { self.save_file().unwrap(); },
SaveAs => { self.save_file_as().unwrap(); },
Print => {
let mut printer = printer::Printer::default();
if printer.begin_job(0).is_ok() {
let (w, h) = printer.printable_rect();
self.printable.set_size(w - 40, h - 40);
// Needs cleanup
let line_count = self.printable.count_lines(0, self.printable.buffer().unwrap().length(), true) / 45;
for i in 0..=line_count {
self.printable.scroll(45 * i, 0);
printer.begin_page().ok();
printer.print_widget(&self.printable, 20, 20);
printer.end_page().ok();
}
printer.end_job();
}
},
Quit => {
if self.modified {
match dialog::choice2(center().0 - 200, center().1 - 100,
"Would you like to save your work?", "Yes", "No", "") {
Some(0) => {
if self.save_file().unwrap() {
self.app.quit();
}
},
Some(1) => { self.app.quit() },
Some(_) | None => (),
}
} else {
self.app.quit();
}
},
Cut => self.editor.cut(),
Copy => self.editor.copy(),
Paste => self.editor.paste(),
About => dialog::message(center().0 - 300, center().1 - 100, "This is an example application written in Rust and using the FLTK Gui library."),
}
}
}
}
sourcepub fn text(&self) -> String
pub fn text(&self) -> String
Returns the text of the buffer
Examples found in repository?
166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
fn menu_cb(m: &mut impl MenuExt) {
if let Ok(mpath) = m.item_pathname(None) {
let ed: text::TextEditor = app::widget_from_id("ed").unwrap();
match mpath.as_str() {
"&File/New\t" => {
STATE.with(|s| {
if !s.buf.text().is_empty() {
let c = dialog::choice2_default(
"Are you sure you want to clear the buffer?",
"Yes",
"No",
"",
);
if c == Some(0) {
s.buf.set_text("");
s.saved = false;
}
}
});
}
"&File/Open...\t" => {
let c = nfc_get_file(dialog::NativeFileChooserType::BrowseFile);
if let Ok(text) = std::fs::read_to_string(&c) {
STATE.with(move |s| {
s.buf.set_text(&text);
s.saved = false;
s.current_file = c.clone();
});
}
}
"&File/Save\t" => {
STATE.with(|s| {
if !s.saved && s.current_file.exists() {
std::fs::write(&s.current_file, s.buf.text()).ok();
}
});
}
"&File/Save as...\t" => {
let c = nfc_get_file(dialog::NativeFileChooserType::BrowseSaveFile);
STATE.with(move |s| {
std::fs::write(&c, s.buf.text()).ok();
s.saved = true;
s.current_file = c.clone();
});
}
"&File/Quit\t" => quit_cb(),
"&Edit/Cut\t" => ed.cut(),
"&Edit/Copy\t" => ed.copy(),
"&Edit/Paste\t" => ed.paste(),
"&Help/About\t" => {
dialog::message_default("A minimal text editor written using fltk-rs!")
}
_ => unreachable!(),
}
}
}
More examples
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
fn apply_style(
&mut self,
pos: Option<i32>,
ins_items: Option<i32>,
del_items: Option<i32>,
repl_start: Option<i32>,
repl_end: Option<i32>,
font: Font,
size: i32,
color: Color,
attr: TextAttr,
text_editor: &mut TextEditor,
) {
let mut style_buffer = match text_editor.style_buffer() {
Some(sb) => sb,
None => TextBuffer::default(),
};
// get existent style or create new one
let style_char =
match self.style_table.iter().position(|s| {
s.font == font && s.size == size && s.color == color && s.attr == attr
}) {
Some(i) => ((i + 65) as u8 as char).to_string(),
None => {
self.style_table.push(StyleTableEntryExt {
color,
font,
size,
attr,
bgcolor: Color::Black,
});
((self.style_table.len() + 64) as u8 as char).to_string()
}
};
// insert, delete or replace char index style to the style_buffer
match ins_items {
Some(n) if n > 0 => {
// insert items with style
style_buffer.insert(pos.unwrap(), style_char.repeat(n as usize).as_str());
}
_ => match del_items {
Some(n) if n > 0 => {
// delete items with style
style_buffer.remove(pos.unwrap(), pos.unwrap() + n);
}
_ => match repl_end {
Some(n) if n > 0 => {
// replace items style
style_buffer.replace(
repl_start.unwrap(),
repl_end.unwrap(),
style_char
.repeat((repl_end.unwrap() - repl_start.unwrap()) as usize)
.as_str(),
);
}
_ => {}
},
},
}
// compact styles on the buffer and reorganize the char index on the style_buffer
let mut style_index = style_buffer
.text()
.chars()
.map(|c| (c as usize) - 65)
.collect::<Vec<usize>>();
style_index.sort_unstable();
style_index.dedup();
for (i, &v) in style_index.iter().enumerate() {
self.style_table.swap(i, v);
style_buffer.set_text(
style_buffer
.text()
.replace(
(v + 65) as u8 as char,
((i + 65) as u8 as char).to_string().as_str(),
)
.as_str(),
);
}
// remove unused indexes
//self.style_table = self.style_table.drain(in_buff.len()..).collect();
self.style_table.truncate(style_index.len());
text_editor.set_highlight_data_ext(style_buffer, self.style_table.to_owned());
// uncomment this line to see that the style_table is compact
// println!("total styles: {}", self.style_table.len());
}
350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437
pub fn launch(&mut self) {
while self.app.wait() {
use Message::*;
if let Some(msg) = self.r.recv() {
match msg {
Changed => {
if !self.modified {
self.modified = true;
self.menu.menu.find_item("&File/Save\t").unwrap().activate();
self.menu.menu.find_item("&File/Quit\t").unwrap().set_label_color(Color::Red);
let name = match &self.filename {
Some(f) => f.to_string_lossy().to_string(),
None => "(Untitled)".to_string(),
};
self.main_win.set_label(&format!("* {name} - RustyEd"));
}
}
New => {
if self.buf.text() != "" {
let clear = if let Some(x) = dialog::choice2(center().0 - 200, center().1 - 100, "File unsaved, Do you wish to continue?", "Yes", "No!", "") {
x == 0
} else {
false
};
if clear {
self.buf.set_text("");
}
}
},
Open => {
let mut dlg = dialog::FileDialog::new(dialog::FileDialogType::BrowseFile);
dlg.set_option(dialog::FileDialogOptions::NoOptions);
dlg.set_filter("*.{txt,rs,toml}");
dlg.show();
let filename = dlg.filename();
if !filename.to_string_lossy().to_string().is_empty() {
if filename.exists() {
match self.buf.load_file(&filename) {
Ok(_) => self.filename = Some(filename),
Err(e) => dialog::alert(center().0 - 200, center().1 - 100, &format!("An issue occured while loading the file: {e}")),
}
} else {
dialog::alert(center().0 - 200, center().1 - 100, "File does not exist!")
}
}
},
Save => { self.save_file().unwrap(); },
SaveAs => { self.save_file_as().unwrap(); },
Print => {
let mut printer = printer::Printer::default();
if printer.begin_job(0).is_ok() {
let (w, h) = printer.printable_rect();
self.printable.set_size(w - 40, h - 40);
// Needs cleanup
let line_count = self.printable.count_lines(0, self.printable.buffer().unwrap().length(), true) / 45;
for i in 0..=line_count {
self.printable.scroll(45 * i, 0);
printer.begin_page().ok();
printer.print_widget(&self.printable, 20, 20);
printer.end_page().ok();
}
printer.end_job();
}
},
Quit => {
if self.modified {
match dialog::choice2(center().0 - 200, center().1 - 100,
"Would you like to save your work?", "Yes", "No", "") {
Some(0) => {
if self.save_file().unwrap() {
self.app.quit();
}
},
Some(1) => { self.app.quit() },
Some(_) | None => (),
}
} else {
self.app.quit();
}
},
Cut => self.editor.cut(),
Copy => self.editor.copy(),
Paste => self.editor.paste(),
About => dialog::message(center().0 - 300, center().1 - 100, "This is an example application written in Rust and using the FLTK Gui library."),
}
}
}
}
sourcepub fn append(&mut self, text: &str)
pub fn append(&mut self, text: &str)
Appends to the buffer. To append and scroll to the end of the buffer:
use fltk::{prelude::*, *};
let txt = "Some long text!";
let buf = text::TextBuffer::default();
let mut disp = text::TextDisplay::default();
disp.set_buffer(Some(buf));
disp.buffer().unwrap().append(txt);
disp.set_insert_position(disp.buffer().unwrap().length());
disp.scroll(
disp.count_lines(0, disp.buffer().unwrap().length(), true),
0,
);
sourcepub fn length(&self) -> i32
pub fn length(&self) -> i32
Get the length of the buffer
Examples found in repository?
350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437
pub fn launch(&mut self) {
while self.app.wait() {
use Message::*;
if let Some(msg) = self.r.recv() {
match msg {
Changed => {
if !self.modified {
self.modified = true;
self.menu.menu.find_item("&File/Save\t").unwrap().activate();
self.menu.menu.find_item("&File/Quit\t").unwrap().set_label_color(Color::Red);
let name = match &self.filename {
Some(f) => f.to_string_lossy().to_string(),
None => "(Untitled)".to_string(),
};
self.main_win.set_label(&format!("* {name} - RustyEd"));
}
}
New => {
if self.buf.text() != "" {
let clear = if let Some(x) = dialog::choice2(center().0 - 200, center().1 - 100, "File unsaved, Do you wish to continue?", "Yes", "No!", "") {
x == 0
} else {
false
};
if clear {
self.buf.set_text("");
}
}
},
Open => {
let mut dlg = dialog::FileDialog::new(dialog::FileDialogType::BrowseFile);
dlg.set_option(dialog::FileDialogOptions::NoOptions);
dlg.set_filter("*.{txt,rs,toml}");
dlg.show();
let filename = dlg.filename();
if !filename.to_string_lossy().to_string().is_empty() {
if filename.exists() {
match self.buf.load_file(&filename) {
Ok(_) => self.filename = Some(filename),
Err(e) => dialog::alert(center().0 - 200, center().1 - 100, &format!("An issue occured while loading the file: {e}")),
}
} else {
dialog::alert(center().0 - 200, center().1 - 100, "File does not exist!")
}
}
},
Save => { self.save_file().unwrap(); },
SaveAs => { self.save_file_as().unwrap(); },
Print => {
let mut printer = printer::Printer::default();
if printer.begin_job(0).is_ok() {
let (w, h) = printer.printable_rect();
self.printable.set_size(w - 40, h - 40);
// Needs cleanup
let line_count = self.printable.count_lines(0, self.printable.buffer().unwrap().length(), true) / 45;
for i in 0..=line_count {
self.printable.scroll(45 * i, 0);
printer.begin_page().ok();
printer.print_widget(&self.printable, 20, 20);
printer.end_page().ok();
}
printer.end_job();
}
},
Quit => {
if self.modified {
match dialog::choice2(center().0 - 200, center().1 - 100,
"Would you like to save your work?", "Yes", "No", "") {
Some(0) => {
if self.save_file().unwrap() {
self.app.quit();
}
},
Some(1) => { self.app.quit() },
Some(_) | None => (),
}
} else {
self.app.quit();
}
},
Cut => self.editor.cut(),
Copy => self.editor.copy(),
Paste => self.editor.paste(),
About => dialog::message(center().0 - 300, center().1 - 100, "This is an example application written in Rust and using the FLTK Gui library."),
}
}
}
}
More examples
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
fn main() {
let style = Rc::from(RefCell::from(Style::new()));
let app = App::default().with_scheme(Scheme::Gleam);
let mut wind = Window::default()
.with_size(500, 200)
.with_label("Highlight");
let mut vpack = Pack::new(4, 4, 492, 192, "");
vpack.set_spacing(4);
let mut text_editor = TextEditor::default().with_size(492, 163);
let mut hpack = Pack::new(4, 4, 492, 25, "").with_type(PackType::Horizontal);
hpack.set_spacing(8);
let mut font = Choice::default().with_size(130, 25);
let mut choice = Choice::default().with_size(130, 25);
let mut size = Spinner::default().with_size(60, 25);
let mut color = Choice::default().with_size(100, 25);
let mut btn_clear = Button::default().with_size(40, 25).with_label("X");
hpack.end();
vpack.end();
wind.end();
wind.show();
text_editor.wrap_mode(fltk::text::WrapMode::AtBounds, 0);
text_editor.set_buffer(TextBuffer::default());
font.add_choice("Courier|Helvetica|Times");
font.set_value(0);
font.set_tooltip("Font");
choice.add_choice("Normal|Underline|Strike");
choice.set_value(0);
size.set_value(18.0);
size.set_step(1.0);
size.set_range(12.0, 28.0);
size.set_tooltip("Size");
color.set_tooltip("Color");
color.add_choice("#000000|#ff0000|#00ff00|#0000ff|#ffff00|#00ffff");
color.set_value(0);
btn_clear.set_label_color(Color::Red);
btn_clear.set_tooltip("Clear style");
// set colors
for mut item in color.clone() {
if let Some(lbl) = item.label() {
item.set_label_color(Color::from_u32(
u32::from_str_radix(lbl.trim().strip_prefix('#').unwrap(), 16)
.ok()
.unwrap(),
));
}
}
let style_rc1 = Rc::clone(&style);
text_editor.buffer().unwrap().add_modify_callback({
let mut text_editor1 = text_editor.clone();
let font1 = font.clone();
let size1 = size.clone();
let color1 = color.clone();
let choice1 = choice.clone();
move |pos: i32, ins_items: i32, del_items: i32, _: i32, _: &str| {
let attr = if choice1.value() == 1 {
TextAttr::Underline
} else if choice1.value() == 2 {
TextAttr::StrikeThrough
} else {
TextAttr::None
};
if ins_items > 0 || del_items > 0 {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color1
.text(color1.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
Some(pos),
Some(ins_items),
Some(del_items),
None,
None,
Font::by_name(font1.text(font1.value()).unwrap().trim()),
size1.value() as i32,
color,
attr,
&mut text_editor1,
);
}
}
});
color.set_callback({
let size = size.clone();
let font = font.clone();
let choice = choice.clone();
let mut text_editor = text_editor.clone();
let style_rc1 = Rc::clone(&style);
move |color| {
let attr = match choice.value() {
0 => TextAttr::None,
1 => TextAttr::Underline,
2 => TextAttr::StrikeThrough,
_ => unreachable!(),
};
if let Some(buf) = text_editor.buffer() {
if let Some((s, e)) = buf.selection_position() {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color
.text(color.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
None,
None,
None,
Some(s),
Some(e),
Font::by_name(font.text(font.value()).unwrap().trim()),
size.value() as i32,
color,
attr,
&mut text_editor,
);
}
}
}
});
// get the style from the current cursor position
text_editor.handle({
let style_rc1 = Rc::clone(&style);
let mut font1 = font.clone();
let mut size1 = size.clone();
let mut color1 = color.clone();
move |te, e| match e {
Event::KeyUp | Event::Released => {
if let Some(buff) = te.style_buffer() {
let i = te.insert_position();
if let Some(t) = buff.text_range(i, i + 1) {
if !t.is_empty() {
let style = style_rc1.borrow_mut();
if let Some(i) = t.chars().next().map(|c| (c as usize - 65)) {
if let Some(style) = style.style_table.get(i) {
if let Some(mn) = font1.find_item(&format!("{:?}", style.font))
{
font1.set_item(&mn);
}
size1.set_value(style.size as f64);
let (r, g, b) = style.color.to_rgb();
if let Some(mn) =
color1.find_item(format!("{r:02x}{g:02x}{b:02x}").as_str())
{
color1.set_item(&mn);
}
}
}
}
}
}
true
}
_ => false,
}
});
choice.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
font.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
size.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
// clear style of the current selection or, if no text is selected, clear all text style
btn_clear.set_callback({
let style_rc1 = Rc::clone(&style);
let text_editor1 = text_editor.clone();
move |_| {
match text_editor1.buffer().unwrap().selection_position() {
Some((_, _)) => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
choice.set_value(0);
color.do_callback();
}
None => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
style_rc1.borrow_mut().apply_style(
None,
None,
None,
Some(0),
Some(text_editor1.buffer().unwrap().length()),
Font::Courier,
16,
Color::Black,
TextAttr::None,
&mut text_editor,
);
}
};
}
});
app.run().unwrap();
}
sourcepub fn remove(&mut self, start: i32, end: i32)
pub fn remove(&mut self, start: i32, end: i32)
Removes from the buffer
Examples found in repository?
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
fn apply_style(
&mut self,
pos: Option<i32>,
ins_items: Option<i32>,
del_items: Option<i32>,
repl_start: Option<i32>,
repl_end: Option<i32>,
font: Font,
size: i32,
color: Color,
attr: TextAttr,
text_editor: &mut TextEditor,
) {
let mut style_buffer = match text_editor.style_buffer() {
Some(sb) => sb,
None => TextBuffer::default(),
};
// get existent style or create new one
let style_char =
match self.style_table.iter().position(|s| {
s.font == font && s.size == size && s.color == color && s.attr == attr
}) {
Some(i) => ((i + 65) as u8 as char).to_string(),
None => {
self.style_table.push(StyleTableEntryExt {
color,
font,
size,
attr,
bgcolor: Color::Black,
});
((self.style_table.len() + 64) as u8 as char).to_string()
}
};
// insert, delete or replace char index style to the style_buffer
match ins_items {
Some(n) if n > 0 => {
// insert items with style
style_buffer.insert(pos.unwrap(), style_char.repeat(n as usize).as_str());
}
_ => match del_items {
Some(n) if n > 0 => {
// delete items with style
style_buffer.remove(pos.unwrap(), pos.unwrap() + n);
}
_ => match repl_end {
Some(n) if n > 0 => {
// replace items style
style_buffer.replace(
repl_start.unwrap(),
repl_end.unwrap(),
style_char
.repeat((repl_end.unwrap() - repl_start.unwrap()) as usize)
.as_str(),
);
}
_ => {}
},
},
}
// compact styles on the buffer and reorganize the char index on the style_buffer
let mut style_index = style_buffer
.text()
.chars()
.map(|c| (c as usize) - 65)
.collect::<Vec<usize>>();
style_index.sort_unstable();
style_index.dedup();
for (i, &v) in style_index.iter().enumerate() {
self.style_table.swap(i, v);
style_buffer.set_text(
style_buffer
.text()
.replace(
(v + 65) as u8 as char,
((i + 65) as u8 as char).to_string().as_str(),
)
.as_str(),
);
}
// remove unused indexes
//self.style_table = self.style_table.drain(in_buff.len()..).collect();
self.style_table.truncate(style_index.len());
text_editor.set_highlight_data_ext(style_buffer, self.style_table.to_owned());
// uncomment this line to see that the style_table is compact
// println!("total styles: {}", self.style_table.len());
}
sourcepub fn text_range(&self, start: i32, end: i32) -> Option<String>
pub fn text_range(&self, start: i32, end: i32) -> Option<String>
Returns the text within the range
Examples found in repository?
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
fn main() {
let style = Rc::from(RefCell::from(Style::new()));
let app = App::default().with_scheme(Scheme::Gleam);
let mut wind = Window::default()
.with_size(500, 200)
.with_label("Highlight");
let mut vpack = Pack::new(4, 4, 492, 192, "");
vpack.set_spacing(4);
let mut text_editor = TextEditor::default().with_size(492, 163);
let mut hpack = Pack::new(4, 4, 492, 25, "").with_type(PackType::Horizontal);
hpack.set_spacing(8);
let mut font = Choice::default().with_size(130, 25);
let mut choice = Choice::default().with_size(130, 25);
let mut size = Spinner::default().with_size(60, 25);
let mut color = Choice::default().with_size(100, 25);
let mut btn_clear = Button::default().with_size(40, 25).with_label("X");
hpack.end();
vpack.end();
wind.end();
wind.show();
text_editor.wrap_mode(fltk::text::WrapMode::AtBounds, 0);
text_editor.set_buffer(TextBuffer::default());
font.add_choice("Courier|Helvetica|Times");
font.set_value(0);
font.set_tooltip("Font");
choice.add_choice("Normal|Underline|Strike");
choice.set_value(0);
size.set_value(18.0);
size.set_step(1.0);
size.set_range(12.0, 28.0);
size.set_tooltip("Size");
color.set_tooltip("Color");
color.add_choice("#000000|#ff0000|#00ff00|#0000ff|#ffff00|#00ffff");
color.set_value(0);
btn_clear.set_label_color(Color::Red);
btn_clear.set_tooltip("Clear style");
// set colors
for mut item in color.clone() {
if let Some(lbl) = item.label() {
item.set_label_color(Color::from_u32(
u32::from_str_radix(lbl.trim().strip_prefix('#').unwrap(), 16)
.ok()
.unwrap(),
));
}
}
let style_rc1 = Rc::clone(&style);
text_editor.buffer().unwrap().add_modify_callback({
let mut text_editor1 = text_editor.clone();
let font1 = font.clone();
let size1 = size.clone();
let color1 = color.clone();
let choice1 = choice.clone();
move |pos: i32, ins_items: i32, del_items: i32, _: i32, _: &str| {
let attr = if choice1.value() == 1 {
TextAttr::Underline
} else if choice1.value() == 2 {
TextAttr::StrikeThrough
} else {
TextAttr::None
};
if ins_items > 0 || del_items > 0 {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color1
.text(color1.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
Some(pos),
Some(ins_items),
Some(del_items),
None,
None,
Font::by_name(font1.text(font1.value()).unwrap().trim()),
size1.value() as i32,
color,
attr,
&mut text_editor1,
);
}
}
});
color.set_callback({
let size = size.clone();
let font = font.clone();
let choice = choice.clone();
let mut text_editor = text_editor.clone();
let style_rc1 = Rc::clone(&style);
move |color| {
let attr = match choice.value() {
0 => TextAttr::None,
1 => TextAttr::Underline,
2 => TextAttr::StrikeThrough,
_ => unreachable!(),
};
if let Some(buf) = text_editor.buffer() {
if let Some((s, e)) = buf.selection_position() {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color
.text(color.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
None,
None,
None,
Some(s),
Some(e),
Font::by_name(font.text(font.value()).unwrap().trim()),
size.value() as i32,
color,
attr,
&mut text_editor,
);
}
}
}
});
// get the style from the current cursor position
text_editor.handle({
let style_rc1 = Rc::clone(&style);
let mut font1 = font.clone();
let mut size1 = size.clone();
let mut color1 = color.clone();
move |te, e| match e {
Event::KeyUp | Event::Released => {
if let Some(buff) = te.style_buffer() {
let i = te.insert_position();
if let Some(t) = buff.text_range(i, i + 1) {
if !t.is_empty() {
let style = style_rc1.borrow_mut();
if let Some(i) = t.chars().next().map(|c| (c as usize - 65)) {
if let Some(style) = style.style_table.get(i) {
if let Some(mn) = font1.find_item(&format!("{:?}", style.font))
{
font1.set_item(&mn);
}
size1.set_value(style.size as f64);
let (r, g, b) = style.color.to_rgb();
if let Some(mn) =
color1.find_item(format!("{r:02x}{g:02x}{b:02x}").as_str())
{
color1.set_item(&mn);
}
}
}
}
}
}
true
}
_ => false,
}
});
choice.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
font.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
size.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
// clear style of the current selection or, if no text is selected, clear all text style
btn_clear.set_callback({
let style_rc1 = Rc::clone(&style);
let text_editor1 = text_editor.clone();
move |_| {
match text_editor1.buffer().unwrap().selection_position() {
Some((_, _)) => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
choice.set_value(0);
color.do_callback();
}
None => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
style_rc1.borrow_mut().apply_style(
None,
None,
None,
Some(0),
Some(text_editor1.buffer().unwrap().length()),
Font::Courier,
16,
Color::Black,
TextAttr::None,
&mut text_editor,
);
}
};
}
});
app.run().unwrap();
}
sourcepub fn insert(&mut self, pos: i32, text: &str)
pub fn insert(&mut self, pos: i32, text: &str)
Inserts text into a position
Examples found in repository?
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
fn apply_style(
&mut self,
pos: Option<i32>,
ins_items: Option<i32>,
del_items: Option<i32>,
repl_start: Option<i32>,
repl_end: Option<i32>,
font: Font,
size: i32,
color: Color,
attr: TextAttr,
text_editor: &mut TextEditor,
) {
let mut style_buffer = match text_editor.style_buffer() {
Some(sb) => sb,
None => TextBuffer::default(),
};
// get existent style or create new one
let style_char =
match self.style_table.iter().position(|s| {
s.font == font && s.size == size && s.color == color && s.attr == attr
}) {
Some(i) => ((i + 65) as u8 as char).to_string(),
None => {
self.style_table.push(StyleTableEntryExt {
color,
font,
size,
attr,
bgcolor: Color::Black,
});
((self.style_table.len() + 64) as u8 as char).to_string()
}
};
// insert, delete or replace char index style to the style_buffer
match ins_items {
Some(n) if n > 0 => {
// insert items with style
style_buffer.insert(pos.unwrap(), style_char.repeat(n as usize).as_str());
}
_ => match del_items {
Some(n) if n > 0 => {
// delete items with style
style_buffer.remove(pos.unwrap(), pos.unwrap() + n);
}
_ => match repl_end {
Some(n) if n > 0 => {
// replace items style
style_buffer.replace(
repl_start.unwrap(),
repl_end.unwrap(),
style_char
.repeat((repl_end.unwrap() - repl_start.unwrap()) as usize)
.as_str(),
);
}
_ => {}
},
},
}
// compact styles on the buffer and reorganize the char index on the style_buffer
let mut style_index = style_buffer
.text()
.chars()
.map(|c| (c as usize) - 65)
.collect::<Vec<usize>>();
style_index.sort_unstable();
style_index.dedup();
for (i, &v) in style_index.iter().enumerate() {
self.style_table.swap(i, v);
style_buffer.set_text(
style_buffer
.text()
.replace(
(v + 65) as u8 as char,
((i + 65) as u8 as char).to_string().as_str(),
)
.as_str(),
);
}
// remove unused indexes
//self.style_table = self.style_table.drain(in_buff.len()..).collect();
self.style_table.truncate(style_index.len());
text_editor.set_highlight_data_ext(style_buffer, self.style_table.to_owned());
// uncomment this line to see that the style_table is compact
// println!("total styles: {}", self.style_table.len());
}
sourcepub fn replace(&mut self, start: i32, end: i32, text: &str)
pub fn replace(&mut self, start: i32, end: i32, text: &str)
Replaces text from position start
to end
Examples found in repository?
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
fn apply_style(
&mut self,
pos: Option<i32>,
ins_items: Option<i32>,
del_items: Option<i32>,
repl_start: Option<i32>,
repl_end: Option<i32>,
font: Font,
size: i32,
color: Color,
attr: TextAttr,
text_editor: &mut TextEditor,
) {
let mut style_buffer = match text_editor.style_buffer() {
Some(sb) => sb,
None => TextBuffer::default(),
};
// get existent style or create new one
let style_char =
match self.style_table.iter().position(|s| {
s.font == font && s.size == size && s.color == color && s.attr == attr
}) {
Some(i) => ((i + 65) as u8 as char).to_string(),
None => {
self.style_table.push(StyleTableEntryExt {
color,
font,
size,
attr,
bgcolor: Color::Black,
});
((self.style_table.len() + 64) as u8 as char).to_string()
}
};
// insert, delete or replace char index style to the style_buffer
match ins_items {
Some(n) if n > 0 => {
// insert items with style
style_buffer.insert(pos.unwrap(), style_char.repeat(n as usize).as_str());
}
_ => match del_items {
Some(n) if n > 0 => {
// delete items with style
style_buffer.remove(pos.unwrap(), pos.unwrap() + n);
}
_ => match repl_end {
Some(n) if n > 0 => {
// replace items style
style_buffer.replace(
repl_start.unwrap(),
repl_end.unwrap(),
style_char
.repeat((repl_end.unwrap() - repl_start.unwrap()) as usize)
.as_str(),
);
}
_ => {}
},
},
}
// compact styles on the buffer and reorganize the char index on the style_buffer
let mut style_index = style_buffer
.text()
.chars()
.map(|c| (c as usize) - 65)
.collect::<Vec<usize>>();
style_index.sort_unstable();
style_index.dedup();
for (i, &v) in style_index.iter().enumerate() {
self.style_table.swap(i, v);
style_buffer.set_text(
style_buffer
.text()
.replace(
(v + 65) as u8 as char,
((i + 65) as u8 as char).to_string().as_str(),
)
.as_str(),
);
}
// remove unused indexes
//self.style_table = self.style_table.drain(in_buff.len()..).collect();
self.style_table.truncate(style_index.len());
text_editor.set_highlight_data_ext(style_buffer, self.style_table.to_owned());
// uncomment this line to see that the style_table is compact
// println!("total styles: {}", self.style_table.len());
}
sourcepub fn copy_from(
&mut self,
source_buf: &TextBuffer,
start: i32,
end: i32,
to: i32
)
pub fn copy_from( &mut self, source_buf: &TextBuffer, start: i32, end: i32, to: i32 )
Copies text from a source buffer into the current buffer
sourcepub fn copy(&self) -> TextBuffer
pub fn copy(&self) -> TextBuffer
Copies whole text from a source buffer into a new buffer
sourcepub fn load_file<P: AsRef<Path>>(&mut self, path: P) -> Result<(), FltkError>
pub fn load_file<P: AsRef<Path>>(&mut self, path: P) -> Result<(), FltkError>
Examples found in repository?
116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164
fn handle_drag_drop(editor: &mut text::TextEditor) {
editor.handle({
let mut dnd = false;
let mut released = false;
let buf = editor.buffer().unwrap();
move |_, ev| match ev {
Event::DndEnter => {
dnd = true;
true
}
Event::DndDrag => true,
Event::DndRelease => {
released = true;
true
}
Event::Paste => {
if dnd && released {
let path = app::event_text();
let path = path.trim();
let path = path.replace("file://", "");
let path = std::path::PathBuf::from(&path);
if path.exists() {
// we use a timeout to avoid pasting the path into the buffer
app::add_timeout3(0.0, {
let mut buf = buf.clone();
move |_| match buf.load_file(&path) {
Ok(_) => (),
Err(e) => dialog::alert_default(&format!(
"An issue occured while loading the file: {e}"
)),
}
});
}
dnd = false;
released = false;
true
} else {
false
}
}
Event::DndLeave => {
dnd = false;
released = false;
true
}
_ => false,
}
});
}
More examples
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437
pub fn new(args: Vec<String>) -> Self {
let app = app::App::default().with_scheme(app::Scheme::Gtk);
app::background(211, 211, 211);
let (s, r) = app::channel::<Message>();
let mut buf = text::TextBuffer::default();
buf.set_tab_distance(4);
let mut main_win = window::Window::default()
.with_size(800, 600)
.center_screen()
.with_label("RustyEd");
let menu = MyMenu::new(&s);
let modified = false;
menu.menu.find_item("&File/Save\t").unwrap().deactivate();
let mut editor = MyEditor::new(buf.clone());
editor.emit(s, Message::Changed);
main_win.make_resizable(true);
// only resize editor, not the menu bar
main_win.resizable(&*editor);
main_win.end();
main_win.show();
main_win.set_callback(move |_| {
if app::event() == Event::Close {
s.send(Message::Quit);
}
});
let filename = if args.len() > 1 {
let file = path::Path::new(&args[1]);
assert!(
file.exists() && file.is_file(),
"An error occurred while opening the file!"
);
match buf.load_file(&args[1]) {
Ok(_) => Some(PathBuf::from(args[1].clone())),
Err(e) => {
dialog::alert(
center().0 - 200,
center().1 - 100,
&format!("An issue occured while loading the file: {e}"),
);
None
}
}
} else {
None
};
// Handle drag and drop
editor.handle({
let mut dnd = false;
let mut released = false;
let buf = buf.clone();
move |_, ev| match ev {
Event::DndEnter => {
dnd = true;
true
}
Event::DndDrag => true,
Event::DndRelease => {
released = true;
true
}
Event::Paste => {
if dnd && released {
let path = app::event_text();
let path = path.trim();
let path = path.replace("file://", "");
let path = std::path::PathBuf::from(&path);
if path.exists() {
// we use a timeout to avoid pasting the path into the buffer
app::add_timeout3(0.0, {
let mut buf = buf.clone();
move |_| match buf.load_file(&path) {
Ok(_) => (),
Err(e) => dialog::alert(
center().0 - 200,
center().1 - 100,
&format!("An issue occured while loading the file: {e}"),
),
}
});
}
dnd = false;
released = false;
true
} else {
false
}
}
Event::DndLeave => {
dnd = false;
released = false;
true
}
_ => false,
}
});
// What shows when we attempt to print
let mut printable = text::TextDisplay::default();
printable.set_frame(FrameType::NoBox);
printable.set_scrollbar_size(0);
printable.set_buffer(Some(buf.clone()));
Self {
app,
modified,
filename,
r,
main_win,
menu,
buf,
editor,
printable,
}
}
/** Called by "Save", test if file can be written, otherwise call save_file_as()
* afterwards. Will return true if the file is succesfully saved. */
pub fn save_file(&mut self) -> Result<bool, Box<dyn error::Error>> {
match &self.filename {
Some(f) => {
self.buf.save_file(f)?;
self.modified = false;
self.menu
.menu
.find_item("&File/Save\t")
.unwrap()
.deactivate();
self.menu
.menu
.find_item("&File/Quit\t")
.unwrap()
.set_label_color(Color::Black);
let name = match &self.filename {
Some(f) => f.to_string_lossy().to_string(),
None => "(Untitled)".to_string(),
};
self.main_win.set_label(&format!("{name} - RustyEd"));
Ok(true)
}
None => self.save_file_as(),
}
}
/** Called by "Save As..." or by "Save" in case no file was set yet.
* Returns true if the file was succesfully saved. */
pub fn save_file_as(&mut self) -> Result<bool, Box<dyn error::Error>> {
let mut dlg = dialog::FileDialog::new(dialog::FileDialogType::BrowseSaveFile);
dlg.set_option(dialog::FileDialogOptions::SaveAsConfirm);
dlg.show();
if dlg.filename().to_string_lossy().to_string().is_empty() {
dialog::alert(center().0 - 200, center().1 - 100, "Please specify a file!");
return Ok(false);
}
self.buf.save_file(&dlg.filename())?;
self.modified = false;
self.menu
.menu
.find_item("&File/Save\t")
.unwrap()
.deactivate();
self.menu
.menu
.find_item("&File/Quit\t")
.unwrap()
.set_label_color(Color::Black);
self.filename = Some(dlg.filename());
self.main_win
.set_label(&format!("{:?} - RustyEd", self.filename.as_ref().unwrap()));
Ok(true)
}
pub fn launch(&mut self) {
while self.app.wait() {
use Message::*;
if let Some(msg) = self.r.recv() {
match msg {
Changed => {
if !self.modified {
self.modified = true;
self.menu.menu.find_item("&File/Save\t").unwrap().activate();
self.menu.menu.find_item("&File/Quit\t").unwrap().set_label_color(Color::Red);
let name = match &self.filename {
Some(f) => f.to_string_lossy().to_string(),
None => "(Untitled)".to_string(),
};
self.main_win.set_label(&format!("* {name} - RustyEd"));
}
}
New => {
if self.buf.text() != "" {
let clear = if let Some(x) = dialog::choice2(center().0 - 200, center().1 - 100, "File unsaved, Do you wish to continue?", "Yes", "No!", "") {
x == 0
} else {
false
};
if clear {
self.buf.set_text("");
}
}
},
Open => {
let mut dlg = dialog::FileDialog::new(dialog::FileDialogType::BrowseFile);
dlg.set_option(dialog::FileDialogOptions::NoOptions);
dlg.set_filter("*.{txt,rs,toml}");
dlg.show();
let filename = dlg.filename();
if !filename.to_string_lossy().to_string().is_empty() {
if filename.exists() {
match self.buf.load_file(&filename) {
Ok(_) => self.filename = Some(filename),
Err(e) => dialog::alert(center().0 - 200, center().1 - 100, &format!("An issue occured while loading the file: {e}")),
}
} else {
dialog::alert(center().0 - 200, center().1 - 100, "File does not exist!")
}
}
},
Save => { self.save_file().unwrap(); },
SaveAs => { self.save_file_as().unwrap(); },
Print => {
let mut printer = printer::Printer::default();
if printer.begin_job(0).is_ok() {
let (w, h) = printer.printable_rect();
self.printable.set_size(w - 40, h - 40);
// Needs cleanup
let line_count = self.printable.count_lines(0, self.printable.buffer().unwrap().length(), true) / 45;
for i in 0..=line_count {
self.printable.scroll(45 * i, 0);
printer.begin_page().ok();
printer.print_widget(&self.printable, 20, 20);
printer.end_page().ok();
}
printer.end_job();
}
},
Quit => {
if self.modified {
match dialog::choice2(center().0 - 200, center().1 - 100,
"Would you like to save your work?", "Yes", "No", "") {
Some(0) => {
if self.save_file().unwrap() {
self.app.quit();
}
},
Some(1) => { self.app.quit() },
Some(_) | None => (),
}
} else {
self.app.quit();
}
},
Cut => self.editor.cut(),
Copy => self.editor.copy(),
Paste => self.editor.paste(),
About => dialog::message(center().0 - 300, center().1 - 100, "This is an example application written in Rust and using the FLTK Gui library."),
}
}
}
}
sourcepub fn save_file<P: AsRef<Path>>(&mut self, path: P) -> Result<(), FltkError>
pub fn save_file<P: AsRef<Path>>(&mut self, path: P) -> Result<(), FltkError>
Examples found in repository?
296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
pub fn save_file(&mut self) -> Result<bool, Box<dyn error::Error>> {
match &self.filename {
Some(f) => {
self.buf.save_file(f)?;
self.modified = false;
self.menu
.menu
.find_item("&File/Save\t")
.unwrap()
.deactivate();
self.menu
.menu
.find_item("&File/Quit\t")
.unwrap()
.set_label_color(Color::Black);
let name = match &self.filename {
Some(f) => f.to_string_lossy().to_string(),
None => "(Untitled)".to_string(),
};
self.main_win.set_label(&format!("{name} - RustyEd"));
Ok(true)
}
None => self.save_file_as(),
}
}
/** Called by "Save As..." or by "Save" in case no file was set yet.
* Returns true if the file was succesfully saved. */
pub fn save_file_as(&mut self) -> Result<bool, Box<dyn error::Error>> {
let mut dlg = dialog::FileDialog::new(dialog::FileDialogType::BrowseSaveFile);
dlg.set_option(dialog::FileDialogOptions::SaveAsConfirm);
dlg.show();
if dlg.filename().to_string_lossy().to_string().is_empty() {
dialog::alert(center().0 - 200, center().1 - 100, "Please specify a file!");
return Ok(false);
}
self.buf.save_file(&dlg.filename())?;
self.modified = false;
self.menu
.menu
.find_item("&File/Save\t")
.unwrap()
.deactivate();
self.menu
.menu
.find_item("&File/Quit\t")
.unwrap()
.set_label_color(Color::Black);
self.filename = Some(dlg.filename());
self.main_win
.set_label(&format!("{:?} - RustyEd", self.filename.as_ref().unwrap()));
Ok(true)
}
sourcepub fn tab_distance(&self) -> i32
pub fn tab_distance(&self) -> i32
Returns the tab distance for the buffer
sourcepub fn set_tab_distance(&mut self, tab_dist: i32)
pub fn set_tab_distance(&mut self, tab_dist: i32)
Sets the tab distance
Examples found in repository?
223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257
fn main() {
let a = app::App::default().with_scheme(app::Scheme::Oxy);
app::get_system_colors();
let mut buf = text::TextBuffer::default();
buf.set_tab_distance(4);
let state = State::new(buf.clone());
app::GlobalState::new(state);
let mut w = window::Window::default()
.with_size(WIDTH, HEIGHT)
.with_label("Ted");
w.set_xclass("ted");
{
let mut col = group::Flex::default_fill().column();
col.set_pad(0);
let mut m = menu::SysMenuBar::default();
init_menu(&mut m);
let mut ed = text::TextEditor::default().with_id("ed");
ed.set_buffer(buf);
ed.set_linenumber_width(40);
ed.set_text_font(Font::Courier);
ed.set_trigger(CallbackTrigger::Changed);
ed.set_callback(editor_cb);
handle_drag_drop(&mut ed);
w.resizable(&col);
col.fixed(&m, 30);
col.end();
}
w.end();
w.show();
w.set_callback(win_cb);
a.run().unwrap();
}
More examples
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292
pub fn new(args: Vec<String>) -> Self {
let app = app::App::default().with_scheme(app::Scheme::Gtk);
app::background(211, 211, 211);
let (s, r) = app::channel::<Message>();
let mut buf = text::TextBuffer::default();
buf.set_tab_distance(4);
let mut main_win = window::Window::default()
.with_size(800, 600)
.center_screen()
.with_label("RustyEd");
let menu = MyMenu::new(&s);
let modified = false;
menu.menu.find_item("&File/Save\t").unwrap().deactivate();
let mut editor = MyEditor::new(buf.clone());
editor.emit(s, Message::Changed);
main_win.make_resizable(true);
// only resize editor, not the menu bar
main_win.resizable(&*editor);
main_win.end();
main_win.show();
main_win.set_callback(move |_| {
if app::event() == Event::Close {
s.send(Message::Quit);
}
});
let filename = if args.len() > 1 {
let file = path::Path::new(&args[1]);
assert!(
file.exists() && file.is_file(),
"An error occurred while opening the file!"
);
match buf.load_file(&args[1]) {
Ok(_) => Some(PathBuf::from(args[1].clone())),
Err(e) => {
dialog::alert(
center().0 - 200,
center().1 - 100,
&format!("An issue occured while loading the file: {e}"),
);
None
}
}
} else {
None
};
// Handle drag and drop
editor.handle({
let mut dnd = false;
let mut released = false;
let buf = buf.clone();
move |_, ev| match ev {
Event::DndEnter => {
dnd = true;
true
}
Event::DndDrag => true,
Event::DndRelease => {
released = true;
true
}
Event::Paste => {
if dnd && released {
let path = app::event_text();
let path = path.trim();
let path = path.replace("file://", "");
let path = std::path::PathBuf::from(&path);
if path.exists() {
// we use a timeout to avoid pasting the path into the buffer
app::add_timeout3(0.0, {
let mut buf = buf.clone();
move |_| match buf.load_file(&path) {
Ok(_) => (),
Err(e) => dialog::alert(
center().0 - 200,
center().1 - 100,
&format!("An issue occured while loading the file: {e}"),
),
}
});
}
dnd = false;
released = false;
true
} else {
false
}
}
Event::DndLeave => {
dnd = false;
released = false;
true
}
_ => false,
}
});
// What shows when we attempt to print
let mut printable = text::TextDisplay::default();
printable.set_frame(FrameType::NoBox);
printable.set_scrollbar_size(0);
printable.set_buffer(Some(buf.clone()));
Self {
app,
modified,
filename,
r,
main_win,
menu,
buf,
editor,
printable,
}
}
sourcepub fn selection_position(&self) -> Option<(i32, i32)>
pub fn selection_position(&self) -> Option<(i32, i32)>
Returns the selection position
Examples found in repository?
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
fn main() {
let style = Rc::from(RefCell::from(Style::new()));
let app = App::default().with_scheme(Scheme::Gleam);
let mut wind = Window::default()
.with_size(500, 200)
.with_label("Highlight");
let mut vpack = Pack::new(4, 4, 492, 192, "");
vpack.set_spacing(4);
let mut text_editor = TextEditor::default().with_size(492, 163);
let mut hpack = Pack::new(4, 4, 492, 25, "").with_type(PackType::Horizontal);
hpack.set_spacing(8);
let mut font = Choice::default().with_size(130, 25);
let mut choice = Choice::default().with_size(130, 25);
let mut size = Spinner::default().with_size(60, 25);
let mut color = Choice::default().with_size(100, 25);
let mut btn_clear = Button::default().with_size(40, 25).with_label("X");
hpack.end();
vpack.end();
wind.end();
wind.show();
text_editor.wrap_mode(fltk::text::WrapMode::AtBounds, 0);
text_editor.set_buffer(TextBuffer::default());
font.add_choice("Courier|Helvetica|Times");
font.set_value(0);
font.set_tooltip("Font");
choice.add_choice("Normal|Underline|Strike");
choice.set_value(0);
size.set_value(18.0);
size.set_step(1.0);
size.set_range(12.0, 28.0);
size.set_tooltip("Size");
color.set_tooltip("Color");
color.add_choice("#000000|#ff0000|#00ff00|#0000ff|#ffff00|#00ffff");
color.set_value(0);
btn_clear.set_label_color(Color::Red);
btn_clear.set_tooltip("Clear style");
// set colors
for mut item in color.clone() {
if let Some(lbl) = item.label() {
item.set_label_color(Color::from_u32(
u32::from_str_radix(lbl.trim().strip_prefix('#').unwrap(), 16)
.ok()
.unwrap(),
));
}
}
let style_rc1 = Rc::clone(&style);
text_editor.buffer().unwrap().add_modify_callback({
let mut text_editor1 = text_editor.clone();
let font1 = font.clone();
let size1 = size.clone();
let color1 = color.clone();
let choice1 = choice.clone();
move |pos: i32, ins_items: i32, del_items: i32, _: i32, _: &str| {
let attr = if choice1.value() == 1 {
TextAttr::Underline
} else if choice1.value() == 2 {
TextAttr::StrikeThrough
} else {
TextAttr::None
};
if ins_items > 0 || del_items > 0 {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color1
.text(color1.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
Some(pos),
Some(ins_items),
Some(del_items),
None,
None,
Font::by_name(font1.text(font1.value()).unwrap().trim()),
size1.value() as i32,
color,
attr,
&mut text_editor1,
);
}
}
});
color.set_callback({
let size = size.clone();
let font = font.clone();
let choice = choice.clone();
let mut text_editor = text_editor.clone();
let style_rc1 = Rc::clone(&style);
move |color| {
let attr = match choice.value() {
0 => TextAttr::None,
1 => TextAttr::Underline,
2 => TextAttr::StrikeThrough,
_ => unreachable!(),
};
if let Some(buf) = text_editor.buffer() {
if let Some((s, e)) = buf.selection_position() {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color
.text(color.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
None,
None,
None,
Some(s),
Some(e),
Font::by_name(font.text(font.value()).unwrap().trim()),
size.value() as i32,
color,
attr,
&mut text_editor,
);
}
}
}
});
// get the style from the current cursor position
text_editor.handle({
let style_rc1 = Rc::clone(&style);
let mut font1 = font.clone();
let mut size1 = size.clone();
let mut color1 = color.clone();
move |te, e| match e {
Event::KeyUp | Event::Released => {
if let Some(buff) = te.style_buffer() {
let i = te.insert_position();
if let Some(t) = buff.text_range(i, i + 1) {
if !t.is_empty() {
let style = style_rc1.borrow_mut();
if let Some(i) = t.chars().next().map(|c| (c as usize - 65)) {
if let Some(style) = style.style_table.get(i) {
if let Some(mn) = font1.find_item(&format!("{:?}", style.font))
{
font1.set_item(&mn);
}
size1.set_value(style.size as f64);
let (r, g, b) = style.color.to_rgb();
if let Some(mn) =
color1.find_item(format!("{r:02x}{g:02x}{b:02x}").as_str())
{
color1.set_item(&mn);
}
}
}
}
}
}
true
}
_ => false,
}
});
choice.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
font.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
size.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
// clear style of the current selection or, if no text is selected, clear all text style
btn_clear.set_callback({
let style_rc1 = Rc::clone(&style);
let text_editor1 = text_editor.clone();
move |_| {
match text_editor1.buffer().unwrap().selection_position() {
Some((_, _)) => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
choice.set_value(0);
color.do_callback();
}
None => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
style_rc1.borrow_mut().apply_style(
None,
None,
None,
Some(0),
Some(text_editor1.buffer().unwrap().length()),
Font::Courier,
16,
Color::Black,
TextAttr::None,
&mut text_editor,
);
}
};
}
});
app.run().unwrap();
}
sourcepub fn selection_text(&self) -> String
pub fn selection_text(&self) -> String
Returns the selection text
sourcepub fn remove_selection(&mut self)
pub fn remove_selection(&mut self)
Removes the selection
sourcepub fn replace_selection(&mut self, text: &str)
pub fn replace_selection(&mut self, text: &str)
Replaces selection
sourcepub fn secondary_select(&mut self, start: i32, end: i32)
pub fn secondary_select(&mut self, start: i32, end: i32)
Secondary selects the text from start to end
sourcepub fn secondary_selected(&self) -> bool
pub fn secondary_selected(&self) -> bool
Returns whether text is secondary selected
sourcepub fn secondary_unselect(&mut self)
pub fn secondary_unselect(&mut self)
Unselects text (secondary selection)
sourcepub fn secondary_selection_position(&self) -> Option<(i32, i32)>
pub fn secondary_selection_position(&self) -> Option<(i32, i32)>
Returns the secondary selection position
sourcepub fn secondary_selection_text(&self) -> String
pub fn secondary_selection_text(&self) -> String
Returns the secondary selection text
sourcepub fn remove_secondary_selection(&mut self)
pub fn remove_secondary_selection(&mut self)
Removes the secondary selection
sourcepub fn replace_secondary_selection(&mut self, text: &str)
pub fn replace_secondary_selection(&mut self, text: &str)
Replaces the secondary selection
sourcepub fn is_highlighted(&self) -> bool
pub fn is_highlighted(&self) -> bool
Returns whether text is highlighted
sourcepub fn unhighlight(&mut self)
pub fn unhighlight(&mut self)
Unhighlights text
sourcepub fn highlight_position(&self) -> Option<(i32, i32)>
pub fn highlight_position(&self) -> Option<(i32, i32)>
Returns the highlight position
sourcepub fn highlight_text(&self) -> String
pub fn highlight_text(&self) -> String
Returns the highlighted text
sourcepub fn line_start(&self, pos: i32) -> i32
pub fn line_start(&self, pos: i32) -> i32
Returns the index of the line’s start position at pos
sourcepub fn word_start(&self, pos: i32) -> i32
pub fn word_start(&self, pos: i32) -> i32
Returns the index of the first character of a word at pos
sourcepub fn word_end(&self, pos: i32) -> i32
pub fn word_end(&self, pos: i32) -> i32
Returns the index of the last character of a word at pos
sourcepub fn count_lines(&self, start: i32, end: i32) -> i32
pub fn count_lines(&self, start: i32, end: i32) -> i32
Counts the lines from start to end
sourcepub fn call_modify_callbacks(&mut self)
pub fn call_modify_callbacks(&mut self)
Calls the modify callbacks
sourcepub fn add_modify_callback<F: FnMut(i32, i32, i32, i32, &str) + 'static>(
&mut self,
cb: F
)
pub fn add_modify_callback<F: FnMut(i32, i32, i32, i32, &str) + 'static>( &mut self, cb: F )
Adds a modify callback.
callback args:
pos: i32, inserted items: i32, deleted items: i32, restyled items: i32, deleted_text
Examples found in repository?
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
fn main() {
let style = Rc::from(RefCell::from(Style::new()));
let app = App::default().with_scheme(Scheme::Gleam);
let mut wind = Window::default()
.with_size(500, 200)
.with_label("Highlight");
let mut vpack = Pack::new(4, 4, 492, 192, "");
vpack.set_spacing(4);
let mut text_editor = TextEditor::default().with_size(492, 163);
let mut hpack = Pack::new(4, 4, 492, 25, "").with_type(PackType::Horizontal);
hpack.set_spacing(8);
let mut font = Choice::default().with_size(130, 25);
let mut choice = Choice::default().with_size(130, 25);
let mut size = Spinner::default().with_size(60, 25);
let mut color = Choice::default().with_size(100, 25);
let mut btn_clear = Button::default().with_size(40, 25).with_label("X");
hpack.end();
vpack.end();
wind.end();
wind.show();
text_editor.wrap_mode(fltk::text::WrapMode::AtBounds, 0);
text_editor.set_buffer(TextBuffer::default());
font.add_choice("Courier|Helvetica|Times");
font.set_value(0);
font.set_tooltip("Font");
choice.add_choice("Normal|Underline|Strike");
choice.set_value(0);
size.set_value(18.0);
size.set_step(1.0);
size.set_range(12.0, 28.0);
size.set_tooltip("Size");
color.set_tooltip("Color");
color.add_choice("#000000|#ff0000|#00ff00|#0000ff|#ffff00|#00ffff");
color.set_value(0);
btn_clear.set_label_color(Color::Red);
btn_clear.set_tooltip("Clear style");
// set colors
for mut item in color.clone() {
if let Some(lbl) = item.label() {
item.set_label_color(Color::from_u32(
u32::from_str_radix(lbl.trim().strip_prefix('#').unwrap(), 16)
.ok()
.unwrap(),
));
}
}
let style_rc1 = Rc::clone(&style);
text_editor.buffer().unwrap().add_modify_callback({
let mut text_editor1 = text_editor.clone();
let font1 = font.clone();
let size1 = size.clone();
let color1 = color.clone();
let choice1 = choice.clone();
move |pos: i32, ins_items: i32, del_items: i32, _: i32, _: &str| {
let attr = if choice1.value() == 1 {
TextAttr::Underline
} else if choice1.value() == 2 {
TextAttr::StrikeThrough
} else {
TextAttr::None
};
if ins_items > 0 || del_items > 0 {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color1
.text(color1.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
Some(pos),
Some(ins_items),
Some(del_items),
None,
None,
Font::by_name(font1.text(font1.value()).unwrap().trim()),
size1.value() as i32,
color,
attr,
&mut text_editor1,
);
}
}
});
color.set_callback({
let size = size.clone();
let font = font.clone();
let choice = choice.clone();
let mut text_editor = text_editor.clone();
let style_rc1 = Rc::clone(&style);
move |color| {
let attr = match choice.value() {
0 => TextAttr::None,
1 => TextAttr::Underline,
2 => TextAttr::StrikeThrough,
_ => unreachable!(),
};
if let Some(buf) = text_editor.buffer() {
if let Some((s, e)) = buf.selection_position() {
let mut style = style_rc1.borrow_mut();
let color = Color::from_u32(
u32::from_str_radix(
color
.text(color.value())
.unwrap()
.trim()
.strip_prefix('#')
.unwrap(),
16,
)
.ok()
.unwrap(),
);
style.apply_style(
None,
None,
None,
Some(s),
Some(e),
Font::by_name(font.text(font.value()).unwrap().trim()),
size.value() as i32,
color,
attr,
&mut text_editor,
);
}
}
}
});
// get the style from the current cursor position
text_editor.handle({
let style_rc1 = Rc::clone(&style);
let mut font1 = font.clone();
let mut size1 = size.clone();
let mut color1 = color.clone();
move |te, e| match e {
Event::KeyUp | Event::Released => {
if let Some(buff) = te.style_buffer() {
let i = te.insert_position();
if let Some(t) = buff.text_range(i, i + 1) {
if !t.is_empty() {
let style = style_rc1.borrow_mut();
if let Some(i) = t.chars().next().map(|c| (c as usize - 65)) {
if let Some(style) = style.style_table.get(i) {
if let Some(mn) = font1.find_item(&format!("{:?}", style.font))
{
font1.set_item(&mn);
}
size1.set_value(style.size as f64);
let (r, g, b) = style.color.to_rgb();
if let Some(mn) =
color1.find_item(format!("{r:02x}{g:02x}{b:02x}").as_str())
{
color1.set_item(&mn);
}
}
}
}
}
}
true
}
_ => false,
}
});
choice.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
font.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
size.set_callback({
let mut color1 = color.clone();
move |_| color1.do_callback()
});
// clear style of the current selection or, if no text is selected, clear all text style
btn_clear.set_callback({
let style_rc1 = Rc::clone(&style);
let text_editor1 = text_editor.clone();
move |_| {
match text_editor1.buffer().unwrap().selection_position() {
Some((_, _)) => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
choice.set_value(0);
color.do_callback();
}
None => {
font.set_value(0);
size.set_value(18.0);
color.set_value(0);
style_rc1.borrow_mut().apply_style(
None,
None,
None,
Some(0),
Some(text_editor1.buffer().unwrap().length()),
Font::Courier,
16,
Color::Black,
TextAttr::None,
&mut text_editor,
);
}
};
}
});
app.run().unwrap();
}
sourcepub fn remove_modify_callback<F: FnMut(i32, i32, i32, i32, &str) + 'static>(
&mut self,
cb: F
)
pub fn remove_modify_callback<F: FnMut(i32, i32, i32, i32, &str) + 'static>( &mut self, cb: F )
Removes a modify callback.
callback args:
pos: i32, inserted items: i32, deleted items: i32, restyled items: i32, deleted_text
sourcepub fn search_forward(
&self,
start_pos: i32,
search_string: &str,
match_case: bool
) -> Option<i32>
pub fn search_forward( &self, start_pos: i32, search_string: &str, match_case: bool ) -> Option<i32>
Forward search for a string
sourcepub fn search_backward(
&self,
start_pos: i32,
search_string: &str,
match_case: bool
) -> Option<i32>
pub fn search_backward( &self, start_pos: i32, search_string: &str, match_case: bool ) -> Option<i32>
Backward search for a string
Trait Implementations§
source§impl Clone for TextBuffer
impl Clone for TextBuffer
source§fn clone(&self) -> TextBuffer
fn clone(&self) -> TextBuffer
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for TextBuffer
impl Debug for TextBuffer
source§impl Default for TextBuffer
impl Default for TextBuffer
source§fn default() -> TextBuffer
fn default() -> TextBuffer
Initialized a default text buffer