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Internal: InputText: Made clipboard copy/cut use its own temporary buffer (like paste) so we can guarantee that TempBuffer if not altered and can be preserved. Renamed TempBufferA to TextA to celebrate this.

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This commit is contained in:
omar
2019-02-21 17:33:57 +01:00
parent 81a8730022
commit 332f8f2462
2 changed files with 18 additions and 16 deletions
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28
imgui_widgets.cpp
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@ -3045,10 +3045,10 @@ void ImGuiInputTextCallbackData::InsertChars(int pos, const char* new_text, cons
ImGuiContext& g = *GImGui;
ImGuiInputTextState* edit_state = &g.InputTextState;
IM_ASSERT(edit_state->ID != 0 && g.ActiveId == edit_state->ID);
IM_ASSERT(Buf == edit_state->TempBufferA.Data);
IM_ASSERT(Buf == edit_state->TextA.Data);
int new_buf_size = BufTextLen + ImClamp(new_text_len * 4, 32, ImMax(256, new_text_len)) + 1;
edit_state->TempBufferA.reserve(new_buf_size + 1);
Buf = edit_state->TempBufferA.Data;
edit_state->TextA.reserve(new_buf_size + 1);
Buf = edit_state->TextA.Data;
BufSize = edit_state->BufCapacityA = new_buf_size;
}
@ -3444,9 +3444,11 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
{
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->CurLenW;
state->TempBufferA.resize((ie-ib) * 4 + 1);
ImTextStrToUtf8(state->TempBufferA.Data, state->TempBufferA.Size, state->TextW.Data+ib, state->TextW.Data+ie);
SetClipboardText(state->TempBufferA.Data);
const int clipboard_data_len = ImTextCountUtf8BytesFromStr(state->TextW.Data + ib, state->TextW.Data + ie) + 1;
char* clipboard_data = (char*)MemAlloc(clipboard_data_len * sizeof(char));
ImTextStrToUtf8(clipboard_data, clipboard_data_len, state->TextW.Data + ib, state->TextW.Data + ie);
SetClipboardText(clipboard_data);
MemFree(clipboard_data);
}
if (is_cut)
{
@ -3512,8 +3514,8 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
// FIXME-OPT: CPU waste to do this every time the widget is active, should mark dirty state from the stb_textedit callbacks.
if (!is_readonly)
{
state->TempBufferA.resize(state->TextW.Size * 4 + 1);
ImTextStrToUtf8(state->TempBufferA.Data, state->TempBufferA.Size, state->TextW.Data, NULL);
state->TextA.resize(state->TextW.Size * 4 + 1);
ImTextStrToUtf8(state->TextA.Data, state->TextA.Size, state->TextW.Data, NULL);
}
// User callback
@ -3551,7 +3553,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
callback_data.UserData = callback_user_data;
callback_data.EventKey = event_key;
callback_data.Buf = state->TempBufferA.Data;
callback_data.Buf = state->TextA.Data;
callback_data.BufTextLen = state->CurLenA;
callback_data.BufSize = state->BufCapacityA;
callback_data.BufDirty = false;
@ -3566,7 +3568,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
callback(&callback_data);
// Read back what user may have modified
IM_ASSERT(callback_data.Buf == state->TempBufferA.Data); // Invalid to modify those fields
IM_ASSERT(callback_data.Buf == state->TextA.Data); // Invalid to modify those fields
IM_ASSERT(callback_data.BufSize == state->BufCapacityA);
IM_ASSERT(callback_data.Flags == flags);
if (callback_data.CursorPos != utf8_cursor_pos) { state->Stb.cursor = ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.CursorPos); state->CursorFollow = true; }
@ -3585,9 +3587,9 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
}
// Will copy result string if modified
if (!is_readonly && strcmp(state->TempBufferA.Data, buf) != 0)
if (!is_readonly && strcmp(state->TextA.Data, buf) != 0)
{
apply_new_text = state->TempBufferA.Data;
apply_new_text = state->TextA.Data;
apply_new_text_length = state->CurLenA;
}
}
@ -3633,7 +3635,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
const int buf_display_max_length = 2 * 1024 * 1024;
// Select which buffer we are going to display. We set buf to NULL to prevent accidental usage from now on.
const char* buf_display = (state != NULL && !is_readonly) ? state->TempBufferA.Data : buf;
const char* buf_display = (state != NULL && !is_readonly) ? state->TextA.Data : buf;
IM_ASSERT(buf_display);
buf = NULL;