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InputText: Fix ResizeCallback callback on restoring initial value with Escape key. Avoid over-allocating for InitialText storage. (#2006, #1443, #1008)

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This commit is contained in:
omar 2018-08-22 21:11:55 +02:00
parent 7268c65d73
commit 7d9d9bc34e
1 changed files with 7 additions and 6 deletions
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13
imgui.cpp
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@ -9219,7 +9219,7 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& bb, ImGuiID id, const c
SetHoveredID(id);
}
if (value_changed)
return DataTypeApplyOpFromText(data_buf, g.InputTextState.InitialText.begin(), data_type, data_ptr, NULL);
return DataTypeApplyOpFromText(data_buf, g.InputTextState.InitialText.Data, data_type, data_ptr, NULL);
return false;
}
@ -10809,9 +10809,10 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
// Take a copy of the initial buffer value (both in original UTF-8 format and converted to wchar)
// From the moment we focused we are ignoring the content of 'buf' (unless we are in read-only mode)
const int prev_len_w = edit_state.CurLenW;
edit_state.TextW.resize(buf_size+1); // wchar count <= UTF-8 count. we use +1 to make sure that .Data isn't NULL so it doesn't crash.
edit_state.InitialText.resize(buf_size+1); // UTF-8. we use +1 to make sure that .Data isn't NULL so it doesn't crash.
ImStrncpy(edit_state.InitialText.Data, buf, buf_size);
const int init_buf_len = (int)strlen(buf);
edit_state.TextW.resize(buf_size+1); // wchar count <= UTF-8 count. we use +1 to make sure that .Data isn't NULL so it doesn't crash.
edit_state.InitialText.resize(init_buf_len + 1); // UTF-8. we use +1 to make sure that .Data isn't NULL so it doesn't crash.
memcpy(edit_state.InitialText.Data, buf, init_buf_len + 1);
const char* buf_end = NULL;
edit_state.CurLenW = ImTextStrFromUtf8(edit_state.TextW.Data, buf_size, buf, NULL, &buf_end);
edit_state.CurLenA = (int)(buf_end - buf); // We can't get the result from ImStrncpy() above because it is not UTF-8 aware. Here we'll cut off malformed UTF-8.
@ -11054,10 +11055,10 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
if (cancel_edit)
{
// Restore initial value. Only return true if restoring to the initial value changes the current buffer contents.
if (is_editable && strncmp(buf, edit_state.InitialText.Data, buf_size) != 0)
if (is_editable && strcmp(buf, edit_state.InitialText.Data) != 0)
{
apply_new_text = edit_state.InitialText.Data;
apply_new_text_length = buf_size - 1;
apply_new_text_length = edit_state.InitialText.Size - 1;
}
}