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InputText: Internals: rename CurLenA->TextLen, InitialTextA->TextToRevertTo.

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Follow the refactors in #7925.
This commit is contained in:
ocornut 2024-11-05 11:32:02 +01:00
parent be2d006e2e
commit 63234f8dd0
2 changed files with 53 additions and 53 deletions
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10
imgui_internal.h
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@ -1109,11 +1109,11 @@ struct IMGUI_API ImGuiInputTextState
ImGuiContext* Ctx; // parent UI context (needs to be set explicitly by parent).
ImStbTexteditState* Stb; // State for stb_textedit.h
ImGuiID ID; // widget id owning the text state
int CurLenA; // UTF-8 length of the string in TextA (in bytes)
int TextLen; // UTF-8 length of the string in TextA (in bytes)
ImVector<char> TextA; // main UTF8 buffer. TextA.Size is a buffer size! Should always be >= buf_size passed by user (and of course >= CurLenA + 1).
ImVector<char> InitialTextA; // value to revert to when pressing Escape = backup of end-user buffer at the time of focus (in UTF-8, unaltered)
ImVector<char> TextToRevertTo; // value to revert to when pressing Escape = backup of end-user buffer at the time of focus (in UTF-8, unaltered)
ImVector<char> CallbackTextBackup; // temporary storage for callback to support automatic reconcile of undo-stack
int BufCapacityA; // end-user buffer capacity
int BufCapacity; // end-user buffer capacity (include zero terminator)
ImVec2 Scroll; // horizontal offset (managed manually) + vertical scrolling (pulled from child window's own Scroll.y)
float CursorAnim; // timer for cursor blink, reset on every user action so the cursor reappears immediately
bool CursorFollow; // set when we want scrolling to follow the current cursor position (not always!)
@ -1126,8 +1126,8 @@ struct IMGUI_API ImGuiInputTextState
ImGuiInputTextState();
~ImGuiInputTextState();
void ClearText() { CurLenA = 0; TextA[0] = 0; CursorClamp(); }
void ClearFreeMemory() { TextA.clear(); InitialTextA.clear(); }
void ClearText() { TextLen = 0; TextA[0] = 0; CursorClamp(); }
void ClearFreeMemory() { TextA.clear(); TextToRevertTo.clear(); }
void OnKeyPressed(int key); // Cannot be inline because we call in code in stb_textedit.h implementation
void OnCharPressed(unsigned int c);

96
imgui_widgets.cpp
View File

@ -3928,15 +3928,15 @@ static ImVec2 InputTextCalcTextSize(ImGuiContext* ctx, const char* text_begin, c
// - ...but we don't use that feature.
namespace ImStb
{
static int STB_TEXTEDIT_STRINGLEN(const ImGuiInputTextState* obj) { return obj->CurLenA; }
static char STB_TEXTEDIT_GETCHAR(const ImGuiInputTextState* obj, int idx) { IM_ASSERT(idx <= obj->CurLenA); return obj->TextA[idx]; }
static float STB_TEXTEDIT_GETWIDTH(ImGuiInputTextState* obj, int line_start_idx, int char_idx) { unsigned int c; ImTextCharFromUtf8(&c, obj->TextA.Data + line_start_idx + char_idx, obj->TextA.Data + obj->CurLenA); if ((ImWchar)c == '\n') return IMSTB_TEXTEDIT_GETWIDTH_NEWLINE; ImGuiContext& g = *obj->Ctx; return g.Font->GetCharAdvance((ImWchar)c) * g.FontScale; }
static int STB_TEXTEDIT_STRINGLEN(const ImGuiInputTextState* obj) { return obj->TextLen; }
static char STB_TEXTEDIT_GETCHAR(const ImGuiInputTextState* obj, int idx) { IM_ASSERT(idx <= obj->TextLen); return obj->TextA[idx]; }
static float STB_TEXTEDIT_GETWIDTH(ImGuiInputTextState* obj, int line_start_idx, int char_idx) { unsigned int c; ImTextCharFromUtf8(&c, obj->TextA.Data + line_start_idx + char_idx, obj->TextA.Data + obj->TextLen); if ((ImWchar)c == '\n') return IMSTB_TEXTEDIT_GETWIDTH_NEWLINE; ImGuiContext& g = *obj->Ctx; return g.Font->GetCharAdvance((ImWchar)c) * g.FontScale; }
static char STB_TEXTEDIT_NEWLINE = '\n';
static void STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, ImGuiInputTextState* obj, int line_start_idx)
{
const char* text = obj->TextA.Data;
const char* text_remaining = NULL;
const ImVec2 size = InputTextCalcTextSize(obj->Ctx, text + line_start_idx, text + obj->CurLenA, &text_remaining, NULL, true);
const ImVec2 size = InputTextCalcTextSize(obj->Ctx, text + line_start_idx, text + obj->TextLen, &text_remaining, NULL, true);
r->x0 = 0.0f;
r->x1 = size.x;
r->baseline_y_delta = size.y;
@ -3950,10 +3950,10 @@ static void STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, ImGuiInputTextState* ob
static int IMSTB_TEXTEDIT_GETNEXTCHARINDEX_IMPL(ImGuiInputTextState* obj, int idx)
{
if (idx >= obj->CurLenA)
return obj->CurLenA + 1;
if (idx >= obj->TextLen)
return obj->TextLen + 1;
unsigned int c;
return idx + ImTextCharFromUtf8(&c, obj->TextA.Data + idx, obj->TextA.Data + obj->CurLenA);
return idx + ImTextCharFromUtf8(&c, obj->TextA.Data + idx, obj->TextA.Data + obj->TextLen);
}
static int IMSTB_TEXTEDIT_GETPREVCHARINDEX_IMPL(ImGuiInputTextState* obj, int idx)
@ -3986,8 +3986,8 @@ static int is_word_boundary_from_right(ImGuiInputTextState* obj, int idx)
const char* curr_p = obj->TextA.Data + idx;
const char* prev_p = ImTextFindPreviousUtf8Codepoint(obj->TextA.Data, curr_p);
unsigned int curr_c; ImTextCharFromUtf8(&curr_c, curr_p, obj->TextA.Data + obj->CurLenA);
unsigned int prev_c; ImTextCharFromUtf8(&prev_c, prev_p, obj->TextA.Data + obj->CurLenA);
unsigned int curr_c; ImTextCharFromUtf8(&curr_c, curr_p, obj->TextA.Data + obj->TextLen);
unsigned int prev_c; ImTextCharFromUtf8(&prev_c, prev_p, obj->TextA.Data + obj->TextLen);
bool prev_white = ImCharIsBlankW(prev_c);
bool prev_separ = ImCharIsSeparatorW(prev_c);
@ -4002,8 +4002,8 @@ static int is_word_boundary_from_left(ImGuiInputTextState* obj, int idx)
const char* curr_p = obj->TextA.Data + idx;
const char* prev_p = ImTextFindPreviousUtf8Codepoint(obj->TextA.Data, curr_p);
unsigned int prev_c; ImTextCharFromUtf8(&prev_c, curr_p, obj->TextA.Data + obj->CurLenA);
unsigned int curr_c; ImTextCharFromUtf8(&curr_c, prev_p, obj->TextA.Data + obj->CurLenA);
unsigned int prev_c; ImTextCharFromUtf8(&prev_c, curr_p, obj->TextA.Data + obj->TextLen);
unsigned int curr_c; ImTextCharFromUtf8(&curr_c, prev_p, obj->TextA.Data + obj->TextLen);
bool prev_white = ImCharIsBlankW(prev_c);
bool prev_separ = ImCharIsSeparatorW(prev_c);
@ -4020,7 +4020,7 @@ static int STB_TEXTEDIT_MOVEWORDLEFT_IMPL(ImGuiInputTextState* obj, int idx)
}
static int STB_TEXTEDIT_MOVEWORDRIGHT_MAC(ImGuiInputTextState* obj, int idx)
{
int len = obj->CurLenA;
int len = obj->TextLen;
idx = IMSTB_TEXTEDIT_GETNEXTCHARINDEX(obj, idx);
while (idx < len && !is_word_boundary_from_left(obj, idx))
idx = IMSTB_TEXTEDIT_GETNEXTCHARINDEX(obj, idx);
@ -4029,7 +4029,7 @@ static int STB_TEXTEDIT_MOVEWORDRIGHT_MAC(ImGuiInputTextState* obj, int idx)
static int STB_TEXTEDIT_MOVEWORDRIGHT_WIN(ImGuiInputTextState* obj, int idx)
{
idx = IMSTB_TEXTEDIT_GETNEXTCHARINDEX(obj, idx);
int len = obj->CurLenA;
int len = obj->TextLen;
while (idx < len && !is_word_boundary_from_right(obj, idx))
idx = IMSTB_TEXTEDIT_GETNEXTCHARINDEX(obj, idx);
return idx > len ? len : idx;
@ -4043,7 +4043,7 @@ static void STB_TEXTEDIT_DELETECHARS(ImGuiInputTextState* obj, int pos, int n)
char* dst = obj->TextA.Data + pos;
obj->Edited = true;
obj->CurLenA -= n;
obj->TextLen -= n;
// Offset remaining text (FIXME-OPT: Use memmove)
const char* src = obj->TextA.Data + pos + n;
@ -4055,10 +4055,10 @@ static void STB_TEXTEDIT_DELETECHARS(ImGuiInputTextState* obj, int pos, int n)
static bool STB_TEXTEDIT_INSERTCHARS(ImGuiInputTextState* obj, int pos, const char* new_text, int new_text_len)
{
const bool is_resizable = (obj->Flags & ImGuiInputTextFlags_CallbackResize) != 0;
const int text_len = obj->CurLenA;
const int text_len = obj->TextLen;
IM_ASSERT(pos <= text_len);
if (!is_resizable && (new_text_len + obj->CurLenA + 1 > obj->BufCapacityA))
if (!is_resizable && (new_text_len + obj->TextLen + 1 > obj->BufCapacity))
return false;
// Grow internal buffer if needed
@ -4075,8 +4075,8 @@ static bool STB_TEXTEDIT_INSERTCHARS(ImGuiInputTextState* obj, int pos, const ch
memcpy(text + pos, new_text, (size_t)new_text_len);
obj->Edited = true;
obj->CurLenA += new_text_len;
obj->TextA[obj->CurLenA] = '\0';
obj->TextLen += new_text_len;
obj->TextA[obj->TextLen] = '\0';
return true;
}
@ -4108,8 +4108,8 @@ static bool STB_TEXTEDIT_INSERTCHARS(ImGuiInputTextState* obj, int pos, const ch
// the stb_textedit_paste() function creates two separate records, so we perform it manually. (FIXME: Report to nothings/stb?)
static void stb_textedit_replace(ImGuiInputTextState* str, STB_TexteditState* state, const IMSTB_TEXTEDIT_CHARTYPE* text, int text_len)
{
stb_text_makeundo_replace(str, state, 0, str->CurLenA, text_len);
ImStb::STB_TEXTEDIT_DELETECHARS(str, 0, str->CurLenA);
stb_text_makeundo_replace(str, state, 0, str->TextLen, text_len);
ImStb::STB_TEXTEDIT_DELETECHARS(str, 0, str->TextLen);
state->cursor = state->select_start = state->select_end = 0;
if (text_len <= 0)
return;
@ -4157,13 +4157,13 @@ void ImGuiInputTextState::OnCharPressed(unsigned int c)
// Those functions are not inlined in imgui_internal.h, allowing us to hide ImStbTexteditState from that header.
void ImGuiInputTextState::CursorAnimReset() { CursorAnim = -0.30f; } // After a user-input the cursor stays on for a while without blinking
void ImGuiInputTextState::CursorClamp() { Stb->cursor = ImMin(Stb->cursor, CurLenA); Stb->select_start = ImMin(Stb->select_start, CurLenA); Stb->select_end = ImMin(Stb->select_end, CurLenA); }
void ImGuiInputTextState::CursorClamp() { Stb->cursor = ImMin(Stb->cursor, TextLen); Stb->select_start = ImMin(Stb->select_start, TextLen); Stb->select_end = ImMin(Stb->select_end, TextLen); }
bool ImGuiInputTextState::HasSelection() const { return Stb->select_start != Stb->select_end; }
void ImGuiInputTextState::ClearSelection() { Stb->select_start = Stb->select_end = Stb->cursor; }
int ImGuiInputTextState::GetCursorPos() const { return Stb->cursor; }
int ImGuiInputTextState::GetSelectionStart() const { return Stb->select_start; }
int ImGuiInputTextState::GetSelectionEnd() const { return Stb->select_end; }
void ImGuiInputTextState::SelectAll() { Stb->select_start = 0; Stb->cursor = Stb->select_end = CurLenA; Stb->has_preferred_x = 0; }
void ImGuiInputTextState::SelectAll() { Stb->select_start = 0; Stb->cursor = Stb->select_end = TextLen; Stb->has_preferred_x = 0; }
void ImGuiInputTextState::ReloadUserBufAndSelectAll() { ReloadUserBuf = true; ReloadSelectionStart = 0; ReloadSelectionEnd = INT_MAX; }
void ImGuiInputTextState::ReloadUserBufAndKeepSelection() { ReloadUserBuf = true; ReloadSelectionStart = Stb->select_start; ReloadSelectionEnd = Stb->select_end; }
void ImGuiInputTextState::ReloadUserBufAndMoveToEnd() { ReloadUserBuf = true; ReloadSelectionStart = ReloadSelectionEnd = INT_MAX; }
@ -4216,7 +4216,7 @@ void ImGuiInputTextCallbackData::InsertChars(int pos, const char* new_text, cons
int new_buf_size = BufTextLen + ImClamp(new_text_len * 4, 32, ImMax(256, new_text_len)) + 1;
edit_state->TextA.resize(new_buf_size + 1);
Buf = edit_state->TextA.Data;
BufSize = edit_state->BufCapacityA = new_buf_size;
BufSize = edit_state->BufCapacity = new_buf_size;
}
if (BufTextLen != pos)
@ -4380,8 +4380,8 @@ void ImGui::InputTextDeactivateHook(ImGuiID id)
else
{
IM_ASSERT(state->TextA.Data != 0);
g.InputTextDeactivatedState.TextA.resize(state->CurLenA + 1);
memcpy(g.InputTextDeactivatedState.TextA.Data, state->TextA.Data, state->CurLenA + 1);
g.InputTextDeactivatedState.TextA.resize(state->TextLen + 1);
memcpy(g.InputTextDeactivatedState.TextA.Data, state->TextA.Data, state->TextLen + 1);
}
}
@ -4521,21 +4521,21 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
if (!init_reload_from_user_buf)
{
// Take a copy of the initial buffer value.
state->InitialTextA.resize(buf_len + 1); // UTF-8. we use +1 to make sure that .Data is always pointing to at least an empty string.
memcpy(state->InitialTextA.Data, buf, buf_len + 1);
state->TextToRevertTo.resize(buf_len + 1); // UTF-8. we use +1 to make sure that .Data is always pointing to at least an empty string.
memcpy(state->TextToRevertTo.Data, buf, buf_len + 1);
}
// Preserve cursor position and undo/redo stack if we come back to same widget
// FIXME: Since we reworked this on 2022/06, may want to differentiate recycle_cursor vs recycle_undostate?
bool recycle_state = (state->ID == id && !init_changed_specs && !init_reload_from_user_buf);
if (recycle_state && (state->CurLenA != buf_len || (strncmp(state->TextA.Data, buf, buf_len) != 0)))
if (recycle_state && (state->TextLen != buf_len || (strncmp(state->TextA.Data, buf, buf_len) != 0)))
recycle_state = false;
// Start edition
state->ID = id;
state->TextA.resize(buf_size + 1); // we use +1 to make sure that .Data is always pointing to at least an empty string.
state->CurLenA = (int)strlen(buf);
memcpy(state->TextA.Data, buf, state->CurLenA + 1);
state->TextLen = (int)strlen(buf);
memcpy(state->TextA.Data, buf, state->TextLen + 1);
if (recycle_state)
{
@ -4646,7 +4646,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
{
IM_ASSERT(state != NULL);
state->Edited = false;
state->BufCapacityA = buf_size;
state->BufCapacity = buf_size;
state->Flags = flags;
// Although we are active we don't prevent mouse from hovering other elements unless we are interacting right now with the widget.
@ -4871,7 +4871,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
if (g.PlatformIO.Platform_SetClipboardTextFn != NULL)
{
const int ib = state->HasSelection() ? ImMin(state->Stb->select_start, state->Stb->select_end) : 0;
const int ie = state->HasSelection() ? ImMax(state->Stb->select_start, state->Stb->select_end) : state->CurLenA;
const int ie = state->HasSelection() ? ImMax(state->Stb->select_start, state->Stb->select_end) : state->TextLen;
char backup = state->TextA.Data[ie];
state->TextA.Data[ie] = 0; // A bit of a hack since SetClipboardText only takes null terminated strings
@ -4936,15 +4936,15 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
IMSTB_TEXTEDIT_CHARTYPE empty_string;
stb_textedit_replace(state, state->Stb, &empty_string, 0);
}
else if (strcmp(buf, state->InitialTextA.Data) != 0)
else if (strcmp(buf, state->TextToRevertTo.Data) != 0)
{
apply_new_text = state->InitialTextA.Data;
apply_new_text_length = state->InitialTextA.Size - 1;
apply_new_text = state->TextToRevertTo.Data;
apply_new_text_length = state->TextToRevertTo.Size - 1;
// Restore initial value. Only return true if restoring to the initial value changes the current buffer contents.
// Push records into the undo stack so we can CTRL+Z the revert operation itself
value_changed = true;
stb_textedit_replace(state, state->Stb, state->InitialTextA.Data, state->InitialTextA.Size - 1);
stb_textedit_replace(state, state->Stb, state->TextToRevertTo.Data, state->TextToRevertTo.Size - 1);
}
}
@ -5003,14 +5003,14 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
callback_data.UserData = callback_user_data;
// FIXME-OPT: Undo stack reconcile needs a backup of the data until we rework API, see #7925
state->CallbackTextBackup.resize(state->CurLenA + 1);
memcpy(state->CallbackTextBackup.Data, state->TextA.Data, state->CurLenA + 1);
state->CallbackTextBackup.resize(state->TextLen + 1);
memcpy(state->CallbackTextBackup.Data, state->TextA.Data, state->TextLen + 1);
char* callback_buf = is_readonly ? buf : state->TextA.Data;
callback_data.EventKey = event_key;
callback_data.Buf = callback_buf;
callback_data.BufTextLen = state->CurLenA;
callback_data.BufSize = state->BufCapacityA;
callback_data.BufTextLen = state->TextLen;
callback_data.BufSize = state->BufCapacity;
callback_data.BufDirty = false;
const int utf8_cursor_pos = callback_data.CursorPos = state->Stb->cursor;
@ -5023,7 +5023,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
// Read back what user may have modified
callback_buf = is_readonly ? buf : state->TextA.Data; // Pointer may have been invalidated by a resize callback
IM_ASSERT(callback_data.Buf == callback_buf); // Invalid to modify those fields
IM_ASSERT(callback_data.BufSize == state->BufCapacityA);
IM_ASSERT(callback_data.BufSize == state->BufCapacity);
IM_ASSERT(callback_data.Flags == flags);
const bool buf_dirty = callback_data.BufDirty;
if (callback_data.CursorPos != utf8_cursor_pos || buf_dirty) { state->Stb->cursor = callback_data.CursorPos; state->CursorFollow = true; }
@ -5034,7 +5034,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
// Callback may update buffer and thus set buf_dirty even in read-only mode.
IM_ASSERT(callback_data.BufTextLen == (int)strlen(callback_data.Buf)); // You need to maintain BufTextLen if you change the text!
InputTextReconcileUndoStateAfterUserCallback(state, callback_data.Buf, callback_data.BufTextLen); // FIXME: Move the rest of this block inside function and rename to InputTextReconcileStateAfterUserCallback() ?
state->CurLenA = callback_data.BufTextLen; // Assume correct length and valid UTF-8 from user, saves us an extra strlen()
state->TextLen = callback_data.BufTextLen; // Assume correct length and valid UTF-8 from user, saves us an extra strlen()
state->CursorAnimReset();
}
}
@ -5044,7 +5044,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
if (!is_readonly && strcmp(state->TextA.Data, buf) != 0)
{
apply_new_text = state->TextA.Data;
apply_new_text_length = state->CurLenA;
apply_new_text_length = state->TextLen;
value_changed = true;
}
}
@ -5128,7 +5128,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
{
IM_ASSERT(state != NULL);
if (!is_displaying_hint)
buf_display_end = buf_display + state->CurLenA;
buf_display_end = buf_display + state->TextLen;
// Render text (with cursor and selection)
// This is going to be messy. We need to:
@ -5138,7 +5138,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
// We are attempting to do most of that in **one main pass** to minimize the computation cost (non-negligible for large amount of text) + 2nd pass for selection rendering (we could merge them by an extra refactoring effort)
// FIXME: This should occur on buf_display but we'd need to maintain cursor/select_start/select_end for UTF-8.
const char* text_begin = state->TextA.Data;
const char* text_end = text_begin + state->CurLenA;
const char* text_end = text_begin + state->TextLen;
ImVec2 cursor_offset, select_start_offset;
{
@ -5280,7 +5280,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
if (is_multiline)
text_size = ImVec2(inner_size.x, InputTextCalcTextLenAndLineCount(buf_display, &buf_display_end) * g.FontSize); // We don't need width
else if (!is_displaying_hint && g.ActiveId == id)
buf_display_end = buf_display + state->CurLenA;
buf_display_end = buf_display + state->TextLen;
else if (!is_displaying_hint)
buf_display_end = buf_display + strlen(buf_display);
@ -5341,8 +5341,8 @@ void ImGui::DebugNodeInputTextState(ImGuiInputTextState* state)
ImStb::StbUndoState* undo_state = &stb_state->undostate;
Text("ID: 0x%08X, ActiveID: 0x%08X", state->ID, g.ActiveId);
DebugLocateItemOnHover(state->ID);
Text("CurLenA: %d, Cursor: %d, Selection: %d..%d", state->CurLenA, stb_state->cursor, stb_state->select_start, stb_state->select_end);
Text("BufCapacityA: %d", state->BufCapacityA);
Text("CurLenA: %d, Cursor: %d, Selection: %d..%d", state->TextLen, stb_state->cursor, stb_state->select_start, stb_state->select_end);
Text("BufCapacityA: %d", state->BufCapacity);
Text("(Internal Buffer: TextA Size: %d, Capacity: %d)", state->TextA.Size, state->TextA.Capacity);
Text("has_preferred_x: %d (%.2f)", stb_state->has_preferred_x, stb_state->preferred_x);
Text("undo_point: %d, redo_point: %d, undo_char_point: %d, redo_char_point: %d", undo_state->undo_point, undo_state->redo_point, undo_state->undo_char_point, undo_state->redo_char_point);