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functional utf-8 textbox navigation

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This commit is contained in:
jacob 2026-03-29 01:05:17 -05:00
parent ff8f222527
commit 2f39fb2807
2 changed files with 55 additions and 103 deletions
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152
src/pp/pp_vis/pp_vis_core.c
View File

@ -274,15 +274,6 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
{ {
V_TextboxDelta delta = tbd_node->delta; V_TextboxDelta delta = tbd_node->delta;
// if (!(delta.flags & V_TextboxDeltaFlag_DontUpdateCursor))
// {
// tb->start = ClampI64(delta.start, 0, tb->len);
// tb->end = ClampI64(delta.end, 0, tb->len);
// }
// Navigate // Navigate
{ {
b32 navigated = 0; b32 navigated = 0;
@ -304,14 +295,14 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
} }
else if (delta.flags & V_TextboxDeltaFlag_NavWord) else if (delta.flags & V_TextboxDeltaFlag_NavWord)
{ {
if (tb->end > 0 && tb->text[tb->end - 1] == ' ') if (tb->end > 0 && tb->text32[tb->end - 1] == ' ')
{ {
for (i64 pos = tb->end - 1; pos >= 0 && tb->text[pos] == ' '; --pos) for (i64 pos = tb->end - 1; pos >= 0 && tb->text32[pos] == ' '; --pos)
{ {
tb->end = pos; tb->end = pos;
} }
} }
for (i64 pos = tb->end - 1; pos >= 0 && tb->text[pos] != ' '; --pos) for (i64 pos = tb->end - 1; pos >= 0 && tb->text32[pos] != ' '; --pos)
{ {
tb->end = pos; tb->end = pos;
} }
@ -319,11 +310,6 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
else else
{ {
tb->end -= 1; tb->end -= 1;
// Skip utf-8 continuations
// for (i64 pos = tb->end - 1; pos >= 0 && (tb->text[pos] & 0xC0) == 0x80; --pos)
// {
// tb->end = pos;
// }
} }
} }
if (delta.flags & V_TextboxDeltaFlag_NavRight) if (delta.flags & V_TextboxDeltaFlag_NavRight)
@ -336,14 +322,14 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
} }
else if (delta.flags & V_TextboxDeltaFlag_NavWord) else if (delta.flags & V_TextboxDeltaFlag_NavWord)
{ {
if (tb->end < tb->len && tb->text[tb->end] == ' ') if (tb->end < tb->len && tb->text32[tb->end] == ' ')
{ {
for (i64 pos = tb->end; pos < tb->len && tb->text[pos] == ' '; ++pos) for (i64 pos = tb->end; pos < tb->len && tb->text32[pos] == ' '; ++pos)
{ {
tb->end = pos + 1; tb->end = pos + 1;
} }
} }
for (i64 pos = tb->end; pos < tb->len && tb->text[pos] != ' '; ++pos) for (i64 pos = tb->end; pos < tb->len && tb->text32[pos] != ' '; ++pos)
{ {
tb->end = pos + 1; tb->end = pos + 1;
} }
@ -351,11 +337,6 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
else else
{ {
tb->end += 1; tb->end += 1;
// Skip utf-8 continuations
// for (i64 pos = tb->end; pos < tb->len && (tb->text[pos] & 0xC0) == 0x80; ++pos)
// {
// tb->end = pos + 1;
// }
} }
} }
} }
@ -372,6 +353,8 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
delta.text = PLT_GetClipboardText(scratch.arena); delta.text = PLT_GetClipboardText(scratch.arena);
} }
String32 delta_text32 = String32FromString(scratch.arena, delta.text);
// Update text // Update text
if (delta.flags & V_TextboxDeltaFlag_UpdateText) if (delta.flags & V_TextboxDeltaFlag_UpdateText)
{ {
@ -386,7 +369,7 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
for (i64 src_idx = move.min; src_idx < move.max; ++src_idx) for (i64 src_idx = move.min; src_idx < move.max; ++src_idx)
{ {
i64 dst_idx = src_idx - move_stride; i64 dst_idx = src_idx - move_stride;
tb->text[dst_idx] = tb->text[src_idx]; tb->text32[dst_idx] = tb->text32[src_idx];
} }
} }
@ -395,72 +378,41 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
tb->start = tb->end = remove.min; tb->start = tb->end = remove.min;
} }
// Insert new text // Insert new text
if (tb->len < countof(tb->text32))
{ {
// FIXME: Truncate i64 replace_pos = tb->end;
i64 insert_pos = tb->end; i64 replace_len = MinI64(delta_text32.len, countof(tb->text32) - tb->len);
i64 insert_len = MinI64(delta.text.len, countof(tb->text) - insert_pos); RngI64 move_dst = Zi;
if (insert_len > 0) move_dst.min = replace_pos + replace_len;
move_dst.max = move_dst.min + (tb->len - replace_pos);
move_dst.min = ClampI64(move_dst.min, 0, countof(tb->text32));
move_dst.max = ClampI64(move_dst.max, move_dst.min, countof(tb->text32));
if (replace_len > 0)
{ {
RngI64 move_dst = Zi;
move_dst.min = insert_pos + insert_len;
move_dst.max = move_dst.min + (tb->len - insert_pos);
move_dst.min = ClampI64(move_dst.min, 0, countof(tb->text));
move_dst.max = ClampI64(move_dst.max, move_dst.min, countof(tb->text));
i64 move_stride = insert_len; i64 move_stride = replace_len;
for (i64 dst_idx = move_dst.max - 1; dst_idx >= move_dst.min; --dst_idx) for (i64 dst_idx = move_dst.max - 1; dst_idx >= move_dst.min; --dst_idx)
{ {
i64 src_idx = dst_idx - move_stride; i64 src_idx = dst_idx - move_stride;
tb->text[dst_idx] = tb->text[src_idx]; tb->text32[dst_idx] = tb->text32[src_idx];
} }
for (i64 src_idx = 0; src_idx < insert_len; ++src_idx) for (i64 src_idx = 0; src_idx < replace_len; ++src_idx)
{ {
i64 dst_idx = insert_pos + src_idx; i64 dst_idx = replace_pos + src_idx;
tb->text[dst_idx] = delta.text.text[src_idx]; tb->text32[dst_idx] = delta_text32.text[src_idx];
} }
} }
tb->start = tb->end = insert_pos + insert_len; tb->start = tb->end = replace_pos + replace_len;
tb->len += insert_len; tb->len = MaxI64(replace_pos + replace_len, move_dst.max);
} }
// // Insert new text
// if (delta.text.len > 0)
// {
// i64 insert_len = ClampI64(delta.text.len, 0, countof(tb->text) - replace.min);
// // Make room
// // FIXME: Truncate
// i64 move_len = ClampI64(tb->len - replace.min, 0, countof(tb->text) - replace.min);
// for (i64 src_pos = replace.min; src_pos < (replace.min + move_len); ++src_pos)
// {
// i64 dst_pos = src_pos + move_len;
// tb->text[dst_pos] = tb->text[src_pos];
// }
// // Copy from delta
// for (i64 src_pos = 0; src_pos < insert_len; ++src_pos)
// {
// i64 dst_pos = replace.min + src_pos;
// tb->text[dst_pos] = delta.text.text[src_pos];
// }
// tb->len += insert_len;
// }
// tb->end = ClampI64(tb->end, 0, tb->len);
// tb->start = tb->end;
} }
if (delta.flags & V_TextboxDeltaFlag_CopySelectionToClipboard) if (delta.flags & V_TextboxDeltaFlag_CopySelectionToClipboard)
{ {
String selection = V_StringFromTextboxSelection(tb); String selection = V_StringFromTextboxSelection(scratch.arena, tb);
if (selection.len > 0) if (selection.len > 0)
{ {
PLT_SetClipboardText(selection); PLT_SetClipboardText(selection);
@ -504,9 +456,9 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
// } // }
// // Insert new text // // Insert new text
// if (delta.text.len > 0) // if (delta_text32.len > 0)
// { // {
// i64 insert_len = ClampI64(delta.text.len, 0, countof(tb->text) - replace.min); // i64 insert_len = ClampI64(delta_text32.len, 0, countof(tb->text) - replace.min);
// // Make room // // Make room
// // FIXME: Truncate // // FIXME: Truncate
@ -521,7 +473,7 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
// for (i64 src_pos = 0; src_pos < insert_len; ++src_pos) // for (i64 src_pos = 0; src_pos < insert_len; ++src_pos)
// { // {
// i64 dst_pos = replace.min + src_pos; // i64 dst_pos = replace.min + src_pos;
// tb->text[dst_pos] = delta.text.text[src_pos]; // tb->text[dst_pos] = delta_text32.text[src_pos];
// } // }
// tb->len += insert_len; // tb->len += insert_len;
// } // }
@ -594,16 +546,16 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
EndScratch(scratch); EndScratch(scratch);
} }
String V_StringFromTextbox(V_TextboxState *tb) String V_StringFromTextbox(Arena *arena, V_TextboxState *tb)
{ {
return STRING(tb->len, tb->text); return StringFromString32(arena, (String32) { .len = tb->len, .text = tb->text32 });
} }
String V_StringFromTextboxSelection(V_TextboxState *tb) String V_StringFromTextboxSelection(Arena *arena, V_TextboxState *tb)
{ {
i64 min = MinI64(tb->start, tb->end); i64 min = MinI64(tb->start, tb->end);
i64 max = MaxI64(tb->start, tb->end); i64 max = MaxI64(tb->start, tb->end);
return STRING(max - min, tb->text + min); return StringFromString32(arena, (String32) { .len = max - min, .text = tb->text32 + min });
} }
//////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////
@ -1186,15 +1138,15 @@ void V_TickForever(WaveLaneCtx *lane)
//- Convert events into cmds //- Convert events into cmds
for (u64 cev_idx = 0; cev_idx < window_frame.controller_events.count; ++cev_idx) for (u64 cev_idx = 0; cev_idx < window_frame.controller_events.count; ++cev_idx)
{ {
ControllerEvent cev = window_frame.controller_events.events[cev_idx]; ControllerEvent *cev = &window_frame.controller_events.events[cev_idx];
b32 down = cev.kind == ControllerEventKind_ButtonDown; b32 down = cev->kind == ControllerEventKind_ButtonDown;
b32 up = cev.kind == ControllerEventKind_ButtonUp; b32 up = cev->kind == ControllerEventKind_ButtonUp;
String text = cev.kind == ControllerEventKind_Text ? STRING(cev.text_chars_count, cev.text_chars) : STRING(0, 0); String text = cev->kind == ControllerEventKind_Text ? STRING(cev->text_chars_count, cev->text_chars) : STRING(0, 0);
b32 ignore = 0; b32 ignore = 0;
if (down) if (down)
{ {
if (cev.button == Button_M1 || cev.button == Button_M2 || cev.button == Button_M3) if (cev->button == Button_M1 || cev->button == Button_M2 || cev->button == Button_M3)
{ {
if (!frame->has_mouse_focus) if (!frame->has_mouse_focus)
{ {
@ -1213,7 +1165,7 @@ void V_TickForever(WaveLaneCtx *lane)
if (!ignore) if (!ignore)
{ {
V_Hotkey hotkey = Zi; V_Hotkey hotkey = Zi;
hotkey.button = cev.button; hotkey.button = cev->button;
hotkey.ctrl = frame->held_buttons[Button_Ctrl]; hotkey.ctrl = frame->held_buttons[Button_Ctrl];
hotkey.shift = frame->held_buttons[Button_Shift]; hotkey.shift = frame->held_buttons[Button_Shift];
hotkey.alt = frame->held_buttons[Button_Alt]; hotkey.alt = frame->held_buttons[Button_Alt];
@ -1237,43 +1189,43 @@ void V_TickForever(WaveLaneCtx *lane)
// Generate text input delta // Generate text input delta
V_TextboxDelta delta = Zi; V_TextboxDelta delta = Zi;
{ {
if (down && cev.button == Button_Left) if (down && cev->button == Button_Left)
{ {
delta.flags |= V_TextboxDeltaFlag_NavLeft; delta.flags |= V_TextboxDeltaFlag_NavLeft;
} }
if (down && cev.button == Button_Right) if (down && cev->button == Button_Right)
{ {
delta.flags |= V_TextboxDeltaFlag_NavRight; delta.flags |= V_TextboxDeltaFlag_NavRight;
} }
if (down && cev.button == Button_Home) if (down && cev->button == Button_Home)
{ {
delta.flags |= V_TextboxDeltaFlag_NavLeft | V_TextboxDeltaFlag_NavLine; delta.flags |= V_TextboxDeltaFlag_NavLeft | V_TextboxDeltaFlag_NavLine;
} }
if (down && cev.button == Button_End) if (down && cev->button == Button_End)
{ {
delta.flags |= V_TextboxDeltaFlag_NavRight | V_TextboxDeltaFlag_NavLine; delta.flags |= V_TextboxDeltaFlag_NavRight | V_TextboxDeltaFlag_NavLine;
} }
if (down && cev.button == Button_A && frame->held_buttons[Button_Ctrl]) if (down && cev->button == Button_A && frame->held_buttons[Button_Ctrl])
{ {
delta.flags |= V_TextboxDeltaFlag_NavSelect | V_TextboxDeltaFlag_NavDirect; delta.flags |= V_TextboxDeltaFlag_NavSelect | V_TextboxDeltaFlag_NavDirect;
delta.direct_start = 0; delta.direct_start = 0;
delta.direct_end = V_MaxTextboxLen; delta.direct_end = V_MaxTextboxLen;
} }
if (down && cev.button == Button_Backspace) if (down && cev->button == Button_Backspace)
{ {
delta.text = Lit(""); delta.text = Lit("");
delta.flags |= V_TextboxDeltaFlag_OnlyNavIfSelectionEmpty | V_TextboxDeltaFlag_NavSelect | V_TextboxDeltaFlag_NavLeft | V_TextboxDeltaFlag_UpdateText; delta.flags |= V_TextboxDeltaFlag_OnlyNavIfSelectionEmpty | V_TextboxDeltaFlag_NavSelect | V_TextboxDeltaFlag_NavLeft | V_TextboxDeltaFlag_UpdateText;
} }
if (down && cev.button == Button_Delete) if (down && cev->button == Button_Delete)
{ {
delta.text = Lit(""); delta.text = Lit("");
delta.flags |= V_TextboxDeltaFlag_OnlyNavIfSelectionEmpty | V_TextboxDeltaFlag_NavSelect | V_TextboxDeltaFlag_NavRight | V_TextboxDeltaFlag_UpdateText; delta.flags |= V_TextboxDeltaFlag_OnlyNavIfSelectionEmpty | V_TextboxDeltaFlag_NavSelect | V_TextboxDeltaFlag_NavRight | V_TextboxDeltaFlag_UpdateText;
} }
if (down && cev.button == Button_C && frame->held_buttons[Button_Ctrl]) if (down && cev->button == Button_C && frame->held_buttons[Button_Ctrl])
{ {
delta.flags |= V_TextboxDeltaFlag_CopySelectionToClipboard; delta.flags |= V_TextboxDeltaFlag_CopySelectionToClipboard;
} }
else if (down && cev.button == Button_V && frame->held_buttons[Button_Ctrl]) else if (down && cev->button == Button_V && frame->held_buttons[Button_Ctrl])
{ {
delta.flags |= V_TextboxDeltaFlag_InheritTextFromClipboard | V_TextboxDeltaFlag_UpdateText; delta.flags |= V_TextboxDeltaFlag_InheritTextFromClipboard | V_TextboxDeltaFlag_UpdateText;
} }
@ -1309,10 +1261,10 @@ void V_TickForever(WaveLaneCtx *lane)
//- Compute mouse delta from events //- Compute mouse delta from events
for (u64 cev_idx = 0; cev_idx < window_frame.controller_events.count; ++cev_idx) for (u64 cev_idx = 0; cev_idx < window_frame.controller_events.count; ++cev_idx)
{ {
ControllerEvent cev = window_frame.controller_events.events[cev_idx]; ControllerEvent *cev = &window_frame.controller_events.events[cev_idx];
if (cev.kind == ControllerEventKind_MouseMove) if (cev->kind == ControllerEventKind_MouseMove)
{ {
mouse_delta = AddVec2(mouse_delta, cev.mouse_delta); mouse_delta = AddVec2(mouse_delta, cev->mouse_delta);
} }
} }
} }
@ -4574,7 +4526,7 @@ void V_TickForever(WaveLaneCtx *lane)
search_text = V_StringFromTextbox(search_state); search_text = V_StringFromTextbox(frame->arena, search_state);
is_searching = search_text.len != 0; is_searching = search_text.len != 0;

6
src/pp/pp_vis/pp_vis_core.h
View File

@ -197,7 +197,7 @@ Struct(V_TextboxDeltaList)
Struct(V_TextboxState) Struct(V_TextboxState)
{ {
i64 len; i64 len;
u8 text[V_MaxTextboxLen]; u32 text32[V_MaxTextboxLen];
i64 start; i64 start;
i64 end; i64 end;
@ -409,8 +409,8 @@ void V_DrawPoint(Vec2 p, Vec4 srgb);
void V_ApplyTextboxDelta(V_TextboxState *tb, V_TextboxDelta delta); void V_ApplyTextboxDelta(V_TextboxState *tb, V_TextboxDelta delta);
void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas); void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas);
String V_StringFromTextbox(V_TextboxState *tb); String V_StringFromTextbox(Arena *arena, V_TextboxState *tb);
String V_StringFromTextboxSelection(V_TextboxState *tb); String V_StringFromTextboxSelection(Arena *arena, V_TextboxState *tb);
//////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////
//~ Timeline helpers //~ Timeline helpers