From 8b04b275f3e110648f65677e3c3f2a7ee82b70e7 Mon Sep 17 00:00:00 2001 From: koniifer Date: Sat, 9 Nov 2024 01:54:33 +0000 Subject: [PATCH] text editor is actually a text editor --- Cargo.lock | 10 +- .../render_example/src/examples/text.hb | 201 +++++++++++++----- 2 files changed, 149 insertions(+), 62 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index d2ffccca..f408d391 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -13,9 +13,9 @@ dependencies = [ [[package]] name = "allocator-api2" -version = "0.2.18" +version = "0.2.19" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5c6cb57a04249c6480766f7f7cef5467412af1490f8d1e243141daddada3264f" +checksum = "611cc2ae7d2e242c457e4be7f97036b8ad9ca152b499f53faf99b1ed8fc2553f" [[package]] name = "anyhow" @@ -228,12 +228,12 @@ dependencies = [ [[package]] name = "hbbytecode" version = "0.1.0" -source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#29367d8f8bdfc23d8662a74edcecf859285ce265" +source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#65e9f272a85cc9d46c31072af9d0f2bc43ef1217" [[package]] name = "hblang" version = "0.1.0" -source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#29367d8f8bdfc23d8662a74edcecf859285ce265" +source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#65e9f272a85cc9d46c31072af9d0f2bc43ef1217" dependencies = [ "hashbrown 0.15.1", "hbbytecode", @@ -245,7 +245,7 @@ dependencies = [ [[package]] name = "hbvm" version = "0.1.0" -source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#29367d8f8bdfc23d8662a74edcecf859285ce265" +source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#65e9f272a85cc9d46c31072af9d0f2bc43ef1217" dependencies = [ "hbbytecode", ] diff --git a/sysdata/programs/render_example/src/examples/text.hb b/sysdata/programs/render_example/src/examples/text.hb index 2f2c2993..b9301c7d 100644 --- a/sysdata/programs/render_example/src/examples/text.hb +++ b/sysdata/programs/render_example/src/examples/text.hb @@ -1,13 +1,15 @@ -.{memory, log, string} := @use("../../../../libraries/stn/src/lib.hb") +.{memory, log, string, math} := @use("../../../../libraries/stn/src/lib.hb") render := @use("../../../../libraries/render/src/lib.hb") -/* expected result: almost-not-trash notepad app - very jank +/* expected result: pretty decent notepad app + slightly jank ----------------- features: - basic keys - holding support with DAS - visible cursor + - l+r arrow key support + - proper insertion and deletion - shift key support */ @@ -15,12 +17,17 @@ psf := @embed("../../../../consolefonts/tamsyn/10x20r.psf") is_shift_pressed := false is_ctrl_pressed := false +is_extended := false $initial_delay := 50 $repeat_delay := 7 +$left_arrow := 0x4B +$right_arrow := 0x4D +$up_arrow := 0x48 +$down_arrow := 0x50 example := fn(): void { screen := render.init(true) - window := render.new_surface(480, 340) + window := render.new_surface(600, 300) font := render.text.font_from_psf2(@bitcast(&psf), false) if font == null { @@ -35,12 +42,10 @@ example := fn(): void { bottom := buf + msg_len @inline(memory.copy, u8, msg, buf, msg_len) - cursor := buf + msg_len; + cursor := bottom - *cursor = 95 - draw_window(window, font, buf) - draw_screen(screen, window); - *cursor = 32 + draw_window(window, font, buf, cursor) + draw_screen(screen, window) memory.outb(96, 238) memory.outb(96, 238) @@ -53,24 +58,35 @@ example := fn(): void { loop { input := memory.inb(96) if input != prev_input { - if (input & 0x80) != 0 { - if (input & 0x7F) == current_key { - current_key = 0 - holding_timer = 0 - } else if input == 0xAA | input == 0xB6 { - is_shift_pressed = false - } else if input == 0x9D { - is_ctrl_pressed = false - } + if input == 0xE0 { + is_extended = true } else { - if input == 0x2A | input == 0x36 { - is_shift_pressed = true - } else if input == 0x1D { - is_ctrl_pressed = true + if (input & 0x80) != 0 { + if (input & 0x7F) == current_key { + current_key = 0 + holding_timer = 0 + } else if input == 0xAA | input == 0xB6 { + is_shift_pressed = false + } else if input == 0x9D { + is_ctrl_pressed = false + } + is_extended = false } else { - current_key = input - holding_timer = 1 - cursor = handle_char(map_keys(current_key), cursor, bottom) + if is_extended { + current_key = input + holding_timer = 1 + cursor = handle_extended_key(input, cursor, bottom, font) + } else { + if input == 0x2A | input == 0x36 { + is_shift_pressed = true + } else if input == 0x1D { + is_ctrl_pressed = true + } else { + current_key = input + holding_timer = 1 + cursor = handle_char(map_keys(current_key), cursor, bottom) + } + } } } prev_input = input @@ -80,14 +96,16 @@ example := fn(): void { holding_timer += 1 if holding_timer >= initial_delay { - cursor = handle_char(map_keys(current_key), cursor, bottom) + if is_extended { + cursor = handle_extended_key(current_key, cursor, bottom, font) + } else { + cursor = handle_char(map_keys(current_key), cursor, bottom) + } holding_timer = initial_delay - repeat_delay } - }; - *cursor = 95 - draw_window(window, font, buf) - draw_screen(screen, window); - *cursor = 32 + } + draw_window(window, font, buf, cursor) + draw_screen(screen, window) if holding_timer > 0 & current_key != 0 { if (memory.inb(96) & 0x80) != 0 { @@ -96,17 +114,87 @@ example := fn(): void { } } } +} - return +handle_extended_key := fn(scancode: u8, cursor: ^u8, bottom: ^u8, font: render.text.Font): ^u8 { + if scancode == left_arrow { + if cursor > bottom { + return cursor - 1 + } + } else if scancode == right_arrow { + if *cursor != 0 { + return cursor + 1 + } + } + return cursor +} + +padding := 3 * @sizeof(render.Color) + +draw_window := fn(window: render.Surface, font: render.text.Font, buf: ^u8, cursor: ^u8): void { + render.clear(window, render.light_yellow) + line := font.height + padding - 1 + render.put_rect(window, .(0, 0), .(window.width - 1, window.height - 1), render.black) + + loop if line >= window.height break else { + render.put_hline(window, line, padding, window.width - padding, render.yellow) + line += font.height + } + + render.put_text(window, font, .(padding, padding), render.black, buf) + + cursor_offset := cursor - buf + + y_pos := padding + x_pos := padding + i := 0 + + loop if i >= cursor_offset break else { + if *(buf + i) == 10 { + y_pos += font.height + font.line_gap + x_pos = padding + } else { + if x_pos + font.width >= window.width - padding { + y_pos += font.height + font.line_gap + x_pos = padding - font.width + } + x_pos += font.width + } + i += 1 + } + + render.put_rect(window, .(x_pos, y_pos), .(1, font.height - 1), render.black) +} + +draw_screen := fn(screen: render.Surface, window: render.Surface): void { + render.clear(screen, render.light_blue) + render.put_surface(screen, window, .(100, 100), false) + render.sync(screen) } handle_char := fn(char: u8, cursor: ^u8, bottom: ^u8): ^u8 { if char == 0 { return cursor } + if is_ctrl_pressed & char == 48 { cursor = bottom } else if char != 0x8 { + end := cursor + loop if *end == 0 break else { + end += 1 + } + + if cursor < end { + src := end + dst := end + 1 + loop if src < cursor break else { + *dst = *src + dst -= 1 + src -= 1 + } + }; + *cursor = char return cursor + 1 } else if char == 0xA { @@ -115,37 +203,36 @@ handle_char := fn(char: u8, cursor: ^u8, bottom: ^u8): ^u8 { *cursor = 92 return cursor + 1 } else if cursor > bottom { - cursor -= 1; - *cursor = 32 - return cursor + if cursor == bottom { + return cursor + } + + end := cursor + loop if *end == 0 break else { + end += 1 + } + + if cursor < end { + src := cursor + dst := cursor - 1 + loop if src > end break else { + *dst = *src + dst += 1 + src += 1 + } + return cursor - 1 + } else { + cursor -= 1; + *cursor = 32 + return cursor + } } return cursor } - map_keys := fn(scancode: u8): u8 { if is_shift_pressed { return ps2_table[scancode + 0x40] } return ps2_table[scancode] } - -ps2_table := [u8].(0x0, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x2D, 0x3D, 0x8, 0x9, 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69, 0x6F, 0x70, 0x5B, 0x5D, 0xA, 0x0, 0x61, 0x73, 0x64, 0x66, 0x67, 0x68, 0x6A, 0x6B, 0x6C, 0x3B, 0x27, 0x60, 0x0, 0x5C, 0x7A, 0x78, 0x63, 0x76, 0x62, 0x6E, 0x6D, 0x2C, 0x2E, 0x2F, 0x0, 0x2A, 0x0, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1B, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, 0x26, 0x2A, 0x28, 0x29, 0x5F, 0x2B, 0x8, 0x9, 0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49, 0x4F, 0x50, 0x7B, 0x7D, 0xA, 0x0, 0x41, 0x53, 0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B, 0x4C, 0x3A, 0x22, 0x7E, 0x0, 0x7C, 0x5A, 0x58, 0x43, 0x56, 0x42, 0x4E, 0x4D, 0x3C, 0x3E, 0x3F, 0x0, 0x0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) -$padding := 7 - -draw_window := fn(window: render.Surface, font: render.text.Font, buf: ^u8): void { - render.clear(window, render.light_yellow) - line := font.height + font.line_gap + padding - 1 - render.put_rect(window, .(0, 0), .(window.width - 1, window.height - 1), render.black) - loop if line >= window.height break else { - render.put_hline(window, line, padding, window.width - padding, render.yellow) - line += font.height + font.line_gap - } - - render.put_text(window, font, .(padding, padding), render.black, buf) -} - -draw_screen := fn(screen: render.Surface, window: render.Surface): void { - render.clear(screen, render.light_blue) - render.put_surface(screen, window, .(100, 100), false) - render.sync(screen) -} +ps2_table := [u8].(0x0, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x2D, 0x3D, 0x8, 0x9, 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69, 0x6F, 0x70, 0x5B, 0x5D, 0xA, 0x0, 0x61, 0x73, 0x64, 0x66, 0x67, 0x68, 0x6A, 0x6B, 0x6C, 0x3B, 0x27, 0x60, 0x0, 0x5C, 0x7A, 0x78, 0x63, 0x76, 0x62, 0x6E, 0x6D, 0x2C, 0x2E, 0x2F, 0x0, 0x2A, 0x0, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1B, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, 0x26, 0x2A, 0x28, 0x29, 0x5F, 0x2B, 0x8, 0x9, 0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49, 0x4F, 0x50, 0x7B, 0x7D, 0xA, 0x0, 0x41, 0x53, 0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B, 0x4C, 0x3A, 0x22, 0x7E, 0x0, 0x7C, 0x5A, 0x58, 0x43, 0x56, 0x42, 0x4E, 0x4D, 0x3C, 0x3E, 0x3F, 0x0, 0x0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) \ No newline at end of file