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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
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@ -274,15 +274,6 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
{
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
{
b32 navigated = 0;
@ -304,14 +295,14 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
}
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;
}
}
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;
}
@ -319,11 +310,6 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
else
{
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)
@ -336,14 +322,14 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
}
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;
}
}
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;
}
@ -351,11 +337,6 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
else
{
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);
}
String32 delta_text32 = String32FromString(scratch.arena, delta.text);
// Update text
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)
{
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;
}
// Insert new text
if (tb->len < countof(tb->text32))
{
// FIXME: Truncate
i64 insert_pos = tb->end;
i64 insert_len = MinI64(delta.text.len, countof(tb->text) - insert_pos);
if (insert_len > 0)
{
i64 replace_pos = tb->end;
i64 replace_len = MinI64(delta_text32.len, countof(tb->text32) - tb->len);
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));
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)
{
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)
{
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;
tb->text[dst_idx] = delta.text.text[src_idx];
i64 dst_idx = replace_pos + src_idx;
tb->text32[dst_idx] = delta_text32.text[src_idx];
}
}
tb->start = tb->end = insert_pos + insert_len;
tb->len += insert_len;
tb->start = tb->end = replace_pos + replace_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)
{
String selection = V_StringFromTextboxSelection(tb);
String selection = V_StringFromTextboxSelection(scratch.arena, tb);
if (selection.len > 0)
{
PLT_SetClipboardText(selection);
@ -504,9 +456,9 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
// }
// // 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
// // 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)
// {
// 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;
// }
@ -594,16 +546,16 @@ void V_ApplyTextboxDeltas(V_TextboxState *tb, V_TextboxDeltaList deltas)
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 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
for (u64 cev_idx = 0; cev_idx < window_frame.controller_events.count; ++cev_idx)
{
ControllerEvent cev = window_frame.controller_events.events[cev_idx];
b32 down = cev.kind == ControllerEventKind_ButtonDown;
b32 up = cev.kind == ControllerEventKind_ButtonUp;
String text = cev.kind == ControllerEventKind_Text ? STRING(cev.text_chars_count, cev.text_chars) : STRING(0, 0);
ControllerEvent *cev = &window_frame.controller_events.events[cev_idx];
b32 down = cev->kind == ControllerEventKind_ButtonDown;
b32 up = cev->kind == ControllerEventKind_ButtonUp;
String text = cev->kind == ControllerEventKind_Text ? STRING(cev->text_chars_count, cev->text_chars) : STRING(0, 0);
b32 ignore = 0;
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)
{
@ -1213,7 +1165,7 @@ void V_TickForever(WaveLaneCtx *lane)
if (!ignore)
{
V_Hotkey hotkey = Zi;
hotkey.button = cev.button;
hotkey.button = cev->button;
hotkey.ctrl = frame->held_buttons[Button_Ctrl];
hotkey.shift = frame->held_buttons[Button_Shift];
hotkey.alt = frame->held_buttons[Button_Alt];
@ -1237,43 +1189,43 @@ void V_TickForever(WaveLaneCtx *lane)
// Generate text input delta
V_TextboxDelta delta = Zi;
{
if (down && cev.button == Button_Left)
if (down && cev->button == Button_Left)
{
delta.flags |= V_TextboxDeltaFlag_NavLeft;
}
if (down && cev.button == Button_Right)
if (down && cev->button == Button_Right)
{
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;
}
if (down && cev.button == Button_End)
if (down && cev->button == Button_End)
{
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.direct_start = 0;
delta.direct_end = V_MaxTextboxLen;
}
if (down && cev.button == Button_Backspace)
if (down && cev->button == Button_Backspace)
{
delta.text = Lit("");
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.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;
}
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;
}
@ -1309,10 +1261,10 @@ void V_TickForever(WaveLaneCtx *lane)
//- Compute mouse delta from events
for (u64 cev_idx = 0; cev_idx < window_frame.controller_events.count; ++cev_idx)
{
ControllerEvent cev = window_frame.controller_events.events[cev_idx];
if (cev.kind == ControllerEventKind_MouseMove)
ControllerEvent *cev = &window_frame.controller_events.events[cev_idx];
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;

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

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