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InputText: Internal: added reload from user-buf feature. (#2890)

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Very highly requested feature (#6962, #5219, #3290, #4627, #5054, #3878, #2881, #1506, #1216, #968).
Also useful for interactive completion/selection popups (#2057, #718)
Based on @kudaba PR. Design for Inputtext V2 should make this obsolete.
This commit is contained in:
ocornut 2024-02-07 21:35:47 +01:00
parent f50ddc431e
commit 06ce312745
5 changed files with 32 additions and 7 deletions
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6
docs/CHANGELOG.txt
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@ -68,8 +68,10 @@ Other changes:
update stopped setting default values. (#7232) [@GrigoryGraborenko]
- Backends: WebGPU: Fixed pipeline layout leak. (#7245) [@rajveermalviya]
- Backends: OpenGL3: Backup and restore GL_PIXEL_UNPACK_BUFFER. (#7253)
- Internals: Various improvements related to yet unpublicized shortcut routing and input ownership
systems.
- Internals: Many improvements related to yet unpublicized shortcut routing and input ownership systems.
- Internals: InputText: Add way to force reload of user-buf when active. (#2890) [@kudaba, @ocornut]
Often requested in some form (#6962, #5219, #3290, #4627, #5054, #3878, #2881, #1506, #1216, #968),
and useful for interactive completion/suggestions popups (#2057, #718)
-----------------------------------------------------------------------

2
imgui.cpp
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@ -12257,6 +12257,8 @@ void ImGui::NavMoveRequestApplyResult()
g.NavWindow = result->Window;
g.NavLastValidSelectionUserData = ImGuiSelectionUserData_Invalid;
}
// FIXME: Could become optional e.g. ImGuiNavMoveFlags_NoClearActiveId if we later want to apply navigation requests without altering active input.
if (g.ActiveId != result->ID)
ClearActiveID();

2
imgui.h
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@ -24,7 +24,7 @@
// Library Version
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
#define IMGUI_VERSION "1.90.2 WIP"
#define IMGUI_VERSION_NUM 19016
#define IMGUI_VERSION_NUM 19017
#define IMGUI_HAS_TABLE
/*

13
imgui_internal.h
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@ -1079,6 +1079,9 @@ struct IMGUI_API ImGuiInputTextState
bool SelectedAllMouseLock; // after a double-click to select all, we ignore further mouse drags to update selection
bool Edited; // edited this frame
ImGuiInputTextFlags Flags; // copy of InputText() flags. may be used to check if e.g. ImGuiInputTextFlags_Password is set.
bool ReloadUserBuf; // force a reload of user buf so it may be modified externally. may be automatic in future version.
int ReloadSelectionStart; // POSITIONS ARE IN IMWCHAR units *NOT* UTF-8 this is why this is not exposed yet.
int ReloadSelectionEnd;
ImGuiInputTextState() { memset(this, 0, sizeof(*this)); }
void ClearText() { CurLenW = CurLenA = 0; TextW[0] = 0; TextA[0] = 0; CursorClamp(); }
@ -1096,6 +1099,16 @@ struct IMGUI_API ImGuiInputTextState
int GetSelectionStart() const { return Stb.select_start; }
int GetSelectionEnd() const { return Stb.select_end; }
void SelectAll() { Stb.select_start = 0; Stb.cursor = Stb.select_end = CurLenW; Stb.has_preferred_x = 0; }
// Reload user buf (WIP #2890)
// If you modify underlying user-passed const char* while active you need to call this (InputText V2 may lift this)
// strcpy(my_buf, "hello");
// if (ImGuiInputTextState* state = ImGui::GetInputTextState(id)) // id may be ImGui::GetItemID() is last item
// state->ReloadUserBufAndSelectAll();
void ReloadUserBufAndSelectAll() { ReloadUserBuf = true; ReloadSelectionStart = 0; ReloadSelectionEnd = INT_MAX; }
void ReloadUserBufAndKeepSelection() { ReloadUserBuf = true; ReloadSelectionStart = Stb.select_start; ReloadSelectionEnd = Stb.select_end; }
void ReloadUserBufAndMoveToEnd() { ReloadUserBuf = true; ReloadSelectionStart = ReloadSelectionEnd = INT_MAX; }
};
enum ImGuiNextWindowDataFlags_

16
imgui_widgets.cpp
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@ -4185,14 +4185,16 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
float scroll_y = is_multiline ? draw_window->Scroll.y : FLT_MAX;
const bool init_reload_from_user_buf = (state != NULL && state->ReloadUserBuf);
const bool init_changed_specs = (state != NULL && state->Stb.single_line != !is_multiline); // state != NULL means its our state.
const bool init_make_active = (user_clicked || user_scroll_finish || input_requested_by_nav);
const bool init_state = (init_make_active || user_scroll_active);
if ((init_state && g.ActiveId != id) || init_changed_specs)
if ((init_state && g.ActiveId != id) || init_changed_specs || init_reload_from_user_buf)
{
// Access state even if we don't own it yet.
state = &g.InputTextState;
state->CursorAnimReset();
state->ReloadUserBuf = false;
// Backup state of deactivating item so they'll have a chance to do a write to output buffer on the same frame they report IsItemDeactivatedAfterEdit (#4714)
InputTextDeactivateHook(state->ID);
@ -4204,8 +4206,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
memcpy(state->InitialTextA.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 differenciate recycle_cursor vs recycle_undostate?
bool recycle_state = (state->ID == id && !init_changed_specs);
// 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 || (state->TextAIsValid && strncmp(state->TextA.Data, buf, buf_len) != 0)))
recycle_state = false;
@ -4230,7 +4232,13 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
stb_textedit_initialize_state(&state->Stb, !is_multiline);
}
if (!is_multiline)
if (init_reload_from_user_buf)
{
state->Stb.select_start = state->ReloadSelectionStart;
state->Stb.cursor = state->Stb.select_end = state->ReloadSelectionEnd;
state->CursorClamp();
}
else if (!is_multiline)
{
if (flags & ImGuiInputTextFlags_AutoSelectAll)
select_all = true;