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InputText: Fixed minor off-by-one issue when submitting a buffer size smaller than the initial zero-terminated buffer contents.

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This commit is contained in:
omar 2018-08-21 12:24:48 +02:00
parent e6c78f9470
commit 0fd6e9bc0d
2 changed files with 3 additions and 2 deletions
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1
CHANGELOG.txt
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@ -60,6 +60,7 @@ Other Changes:
- Drag and Drop: Payload stays available and under the mouse if the source stops being submitted, however the tooltip is replaced by "...". (#1725)
- Drag and Drop: Added ImGuiDragDropFlags_SourceAutoExpirePayload flag to force payload to expire if the source stops being submitted. (#1725, #143).
- IsItemHovered(): Added ImGuiHoveredFlags_AllowWhenDisabled flag to query hovered status on disabled items. (#1940, #211)
- InputText: Fixed minor off-by-one issue when submitting a buffer size smaller than the initial zero-terminated buffer contents.
- Selectable: Added ImGuiSelectableFlags_Disabled flag in the public API. (#211)
- Misc: Added IMGUI_VERSION_NUM for easy compile-time testing. (#2025)
- Misc: Added ImGuiMouseCursor_Hand cursor enum + corresponding software cursor. (#1913, 1914) [@aiekick, @ocornut]

4
imgui.cpp
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@ -10776,9 +10776,9 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
const int prev_len_w = edit_state.CurLenW;
edit_state.Text.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, edit_state.InitialText.Size);
ImStrncpy(edit_state.InitialText.Data, buf, buf_size);
const char* buf_end = NULL;
edit_state.CurLenW = ImTextStrFromUtf8(edit_state.Text.Data, edit_state.Text.Size, buf, NULL, &buf_end);
edit_state.CurLenW = ImTextStrFromUtf8(edit_state.Text.Data, buf_size, buf, NULL, &buf_end);
edit_state.CurLenA = (int)(buf_end - buf); // We can't get the result from ImFormatString() above because it is not UTF-8 aware. Here we'll cut off malformed UTF-8.
edit_state.CursorAnimReset();