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diff --git a/src/3rdparty/imgui/TODO.txt b/src/3rdparty/imgui/TODO.txt new file mode 100644 index 0000000..04e795f --- /dev/null +++ b/src/3rdparty/imgui/TODO.txt @@ -0,0 +1,253 @@ +dear imgui +ISSUES & TODO LIST + +Issue numbers (#) refer to github issues listed at https://github.com/ocornut/imgui/issues/XXXX +The list below consist mostly of ideas noted down before they are requested/discussed by users (at which point they usually exist on the github issue tracker). +It's mostly a bunch of personal notes, probably incomplete. Feel free to query if you have any questions. + + - doc/test: add a proper documentation+regression testing system (#435) + - doc/test: checklist app to verify binding/integration of imgui (test inputs, rendering, callback, etc.). + - project: folder or separate repository with maintained helpers (e.g. imgui_memory_editor.h, imgui_stl.h, maybe imgui_dock would be there?) + + - window: calling SetNextWindowSize() every frame with <= 0 doesn't do anything, may be useful to allow (particularly when used for a single axis). (#690) + - window: add a way for very transient windows (non-saved, temporary overlay over hundreds of objects) to "clean" up from the global window list. perhaps a lightweight explicit cleanup pass. + - window: auto-fit feedback loop when user relies on any dynamic layout (window width multiplier, column) appears weird to end-user. clarify. + - window: allow resizing of child windows (possibly given min/max for each axis?.) + - window: background options for child windows, border option (disable rounding). + - window: resizing from any sides? + mouse cursor directives for app. (#822) +!- window: begin with *p_open == false should return false. + - window: get size/pos helpers given names (see discussion in #249) + - window: a collapsed window can be stuck behind the main menu bar? + - window: when window is very small, prioritize resize button over close button. + - window: detect extra End() call that pop the "Debug" window out and assert at End() call site instead of at end of frame. + - window/tooltip: allow to set the width of a tooltip to allow TextWrapped() etc. while keeping the height automatic. + - window: increase minimum size of a window with menus or fix the menu rendering so that it doesn't look odd. + - window: double-clicking on title bar to minimize isn't consistent, perhaps move to single-click on left-most collapse icon? + - window: expose contents size. (#1045) + - window: GetWindowSize() returns (0,0) when not calculated? (#1045) + - window: freeze window flag: if not focused/hovered, return false, render with previous ImDrawList. and/or reduce refresh rate. +!- scrolling: allow immediately effective change of scroll after Begin() if we haven't appended items yet. + - scrolling/clipping: separator on the initial position of a window is not visible (cursorpos.y <= clippos.y). (2017-08-20: can't repro) + + - drawlist: move Font, FontSize, FontTexUvWhitePixel inside ImDrawList and make it self-contained (apart from drawing settings?) + - drawlist: make it easier to toggle AA per primitive, so we can use e.g. non-AA fill + AA borders more naturally + - drawlist: end-user probably can't call Clear() directly because we expect a texture to be pushed in the stack. + - drawlist: maintaining bounding box per command would allow to merge draw command when clipping isn't relied on (typical non-scrolling window or non-overflowing column would merge with previous command). + - drawlist: avoid passing null (-9999,+9999) rectangle to end-user, instead perhaps pass rectangle based on io.DisplaySize? + - drawlist: primtiives/helpers to manipulate vertices post submission, so e.g. a quad/rect can be resized to fit later submitted content, _without_ using the ChannelSplit api + + - main: considering adding an Init() function? some constructs are awkward in the implementation because of the lack of them. + - main: find a way to preserve relative orders of multiple reappearing windows (so an app toggling between "modes" e.g. fullscreen vs all tools) won't lose relative ordering. + - main: IsItemHovered() make it more consistent for various type of widgets, widgets with multiple components, etc. also effectively IsHovered() region sometimes differs from hot region, e.g tree nodes + - main: IsItemHovered() info stored in a stack? so that 'if TreeNode() { Text; TreePop; } if IsHovered' return the hover state of the TreeNode? + - main: rename the main "Debug" window to avoid ID collision with user who may want to use "Debug" with specific flags. + + - widgets: display mode: widget-label, label-widget (aligned on column or using fixed size), label-newline-tab-widget etc. (#395) + - widgets: clean up widgets internal toward exposing everything and stabilizing imgui_internals.h. + - widgets: add disabled and read-only modes (#211) + - widgets: add always-allow-overlap mode. + - widgets: alignment options in style (e.g. center Selectable, Right-Align within Button, etc.) #1260 + - widgets: activate by identifier (trigger button, focus given id) + + - input text: clean up the mess caused by converting UTF-8 <> wchar. the code is rather inefficient right now and super fragile. + - input text: reorganize event handling, allow CharFilter to modify buffers, allow multiple events? (#541) + - input text: expose CursorPos in char filter event (#816) + - input text: access public fields via a non-callback API e.g. InputTextGetState("xxx") that may return NULL if not active. + - input text: flag to disable live update of the user buffer (also applies to float/int text input) (#701) + - input text: way to dynamically grow the buffer without forcing the user to initially allocate for worse case, e.g. more natural std::string (follow up on #200) + - input text: hover tooltip could show unclamped text + - input text: option to Tab after an Enter validation. + - input text: add ImGuiInputTextFlags_EnterToApply? (off #218) + - input text: easier ways to update buffer (from source char*) while owned. preserve some sort of cursor position for multi-line text. + - input text: add discard flag (e.g. ImGuiInputTextFlags_DiscardActiveBuffer) or make it easier to clear active focus for text replacement during edition (#725) + - input text: display bug when clicking a drag/slider after an input text in a different window has all-selected text (order dependant). actually a very old bug but no one appears to have noticed it. + - input text multi-line: don't directly call AddText() which does an unnecessary vertex reserve for character count prior to clipping. and/or more line-based clipping to AddText(). and/or reorganize TextUnformatted/RenderText for more efficiency for large text (e.g TextUnformatted could clip and log separately, etc). + - input text multi-line: line numbers? status bar? (follow up on #200) + - input text multi-line: behave better when user changes input buffer while editing is active (even though it is illegal behavior). namely, the change of buffer can create a scrollbar glitch (#725) + - input text multi-line: better horizontal scrolling support (#383, #1224) + - input text: allow centering/positioning text so that ctrl+clicking Drag or Slider keeps the textual value at the same pixel position. + - input number: optional range min/max for Input*() functions + - input number: holding [-]/[+] buttons could increase the step speed non-linearly (or user-controlled) + - input number: use mouse wheel to step up/down + - input number: applying arithmetics ops (+,-,*,/) messes up with text edit undo stack. + + - layout: helper or a way to express ImGui::SameLine(ImGui::GetCursorStartPos().x + ImGui::CalcItemWidth() + ImGui::GetStyle().ItemInnerSpacing.x); in a simpler manner. + - layout: generalization of the above: a concept equivalent to word processor ruler tab stop ~ mini columns (position in X, no clipping implied) (vaguely relate to #267, #395, also what is used internally for menu items) + - layout: horizontal layout helper (#97) + - layout: horizontal flow until no space left (#404) + - layout: more generic alignment state (left/right/centered) for single items? + - layout: clean up the InputFloatN/SliderFloatN/ColorEdit4 layout code. item width should include frame padding. + - layout: BeginGroup() needs a border option. + - layout: vertical alignement of mixed height items (e.g. buttons) within a same line (#1284) + + - columns: sizing policy (e.g. for each column: fixed size, %, fill, distribute default size among fills) (#513, #125) + - columns: add a conditional parameter to SetColumnOffset() (#513, #125) + - columns: headers. reorderable. (#513, #125) + - columns: optional sorting modifiers (up/down), sort list so sorting can be done multi-critera. notify user when sort order changed. + - columns: option to alternate background colors on odd/even scanlines. + - columns: allow columns to recurse. + - columns: separator function or parameter that works within the column (currently Separator() bypass all columns) (#125) + - columns: flag to add horizontal separator above/below? + - columns/layout: setup minimum line height (equivalent of automatically calling AlignFirstTextHeightToWidgets) + +!- color: the color conversion helpers/types are a mess and needs sorting out. + - color: (api breaking) ImGui::ColorConvertXXX functions should be loose ImColorConvertXX to match imgui_internals.h + - coloredit: it is still somehow awkward to copy colors around (unless going through Hex mode). + + - plot: full featured plot/graph api w/ scrolling, zooming etc. all bell & whistle. why not! + - plot: PlotLines() should use the polygon-stroke facilities, less verticles (currently issues with averaging normals) + - plot: make it easier for user to draw extra stuff into the graph (e.g: draw basis, highlight certain points, 2d plots, multiple plots) + - plot: "smooth" automatic scale over time, user give an input 0.0(full user scale) 1.0(full derived from value) + - plot: option/feature: draw the zero line + - plot: option/feature: draw grid, vertical markers + - plot: option/feature: draw unit + - plot: add a helper e.g. Plot(char* label, float value, float time_span=2.0f) that stores values and Plot them for you - probably another function name. and/or automatically allow to plot ANY displayed value (more reliance on stable ID) + + - clipper: ability to force display 1 item in the list would be convenient (for patterns where we need to set active id etc.) + - clipper: ability to disable the clipping through a simple flag/bool. + - clipper: ability to run without knowing full count in advance. + + - splitter/separator: formalize the splitter idiom into an official api (we want to handle n-way split) (#319) + + - dock: docking extension + - dock: dock out from a collapsing header? would work nicely but need emitting window to keep submitting the code. + + - tabs: re-ordering, close buttons, context menu, persistent order (#261, #351) + + - ext: stl-ish friendly extension (imgui_stl.h) that has wrapped for std::string, std::vector etc. + + - button: provide a button that looks framed. + - image/image button: misalignment on padded/bordered button? + - image/image button: parameters are confusing, image() has tint_col,border_col whereas imagebutton() has bg_col/tint_col. Even thou they are different parameters ordering could be more consistent. can we fix that? + - image button: not taking an explicit id is odd. + - slider: allow using the [-]/[+] buttons used by InputFloat()/InputInt() + - slider: initial absolute click is imprecise. change to relative movement slider (same as scrollbar). + - slider: add dragging-based widgets to edit values with mouse (on 2 axises), saving screen real-estate. + - slider: tint background based on value (e.g. v_min -> v_max, or use 0.0f either side of the sign) + - slider: precision dragging + - slider: step option (#1183) + - knob: rotating knob widget (#942) + - slider & drag: int data passing through a float + - drag float: up/down axis + - drag float: added leeway on edge (e.g. a few invisible steps past the clamp limits) + + - combo: sparse combo boxes (via function call?) / iterators + - combo: active item type could be anything else e.g. void* + - combo: use clipper + - combo: contents should extends to fit label if combo widget is small + - combo: option for ComboEx to not return true when unchanged (#1182) + - combo/listbox: keyboard control. need InputText-like non-active focus + key handling. considering keyboard for custom listbox (pr #203) + - listbox: multiple selection. + - listbox: unselect option (#1208) + - listbox: make it easier/more natural to implement range-select (need some sort of info/ref about the last clicked/focused item that user can translate to an index?) + - listbox: user may want to initial scroll to focus on the one selected value? + - listbox: expose hovered item for a basic ListBox + - listbox: keyboard navigation. + - listbox: scrolling should track modified selection. + +!- popups/menus: clarify usage of popups id, how MenuItem/Selectable closing parent popups affects the ID, etc. this is quite fishy needs improvement! (#331, #402) + - popups: reopening context menu at new position should be the behavior by default? (equivalent to internal OpenPopupEx() with reopen_existing=true) + - popups: if the popup functions took explicit ImGuiID it would allow the user to manage the scope of those ID. (#331) + - popups: clicking outside (to close popup) and holding shouldn't drag window below. + - popups: add variant using global identifier similar to Begin/End (#402) + - popups: border options. richer api like BeginChild() perhaps? (#197) + - tooltip: tooltip that doesn't fit in entire screen seems to lose their "last preferred direction" and may teleport when moving mouse. + + - menus: calling BeginMenu() twice with a same name doesn't append as Begin() does for regular windows (#1207) + - statusbar: add a per-window status bar helper similar to what menubar does. + - shortcuts: local-style shortcut api, e.g. parse "&Save" + - shortcuts,menus: global-style shortcut api e.g. "Save (CTRL+S)" -> explicit flag for recursing into closed menu + - shortcuts: programmatically access shortcuts "Focus("&Save")) + - menus: menubars: main menu-bar could affect clamping of windows position (~ akin to modifying DisplayMin) + + - text: proper alignment options in imgui_internal.h + - text wrapped: figure out better way to use TextWrapped() in an always auto-resize context (tooltip, etc.) (#249) + - text: it's currently impossible to have a window title with "##". perhaps an official workaround would be nice. \ style inhibitor? non-visible ascii code to insert between #? + + - tree node / optimization: avoid formatting when clipped. + - tree node: tree-node/header right-most side doesn't take account of horizontal scrolling. + - tree node: add treenode/treepush int variants? not there because (void*) cast from int warns on some platforms/settings? + - tree node: try to apply scrolling at time of TreePop() if node was just opened and end of node is past scrolling limits? + - tree node / selectable render mismatch which is visible if you use them both next to each other (e.g. cf. property viewer) + - tree node: tweak color scheme to distinguish headers from selected tree node (#581) + +!- settings: expose enough to save/load .ini from RAM instead of fopen + - settings: write more decent code to allow saving/loading new fields: columns, selected tree nodes? + - settings: api for per-tool simple persistent data (bool,int,float,columns sizes,etc.) in .ini file (#437) + - stb: add defines to disable stb implementations + +!- style: better default styles. +!- style: move border to style structure, remove _ShowBorder flag. + - style: border types: out-screen, in-screen, etc. (#447) + - style/optimization: store rounded corners in texture to use 1 quad per corner (filled and wireframe) to lower the cost of rounding. + - style: add window shadow (fading away from the window. Paint-style calculation of vertices alpha after drawlist would be easier) + - style: color-box not always square? + - style: a concept of "compact style" that the end-user can easily rely on (e.g. PushStyleCompact()?) that maps to other settings? avoid implementing duplicate helpers such as SmallCheckbox(), etc. + - style: try to make PushStyleVar() more robust to incorrect parameters (to be more friendly to edit & continues situation). + - style: global scale setting. + - style: WindowPadding needs to be EVEN as the 0.5 multiplier used on this value probably have a subtle effect on clip rectangle + - style: have a more global HSV setter (e.g. alter hue on all elements). consider replacing active/hovered by offset in HSV space? (#438, #707, #1223) + - style: gradients fill (#1223) ~ 2 bg colors for each fill? tricky with rounded shapes and using textures for corners. + - style editor: color child window height expressed in multiple of line height. + + - log: LogButtons() options for specifying depth and/or hiding depth slider + - log: have more control over the log scope (e.g. stop logging when leaving current tree node scope) + - log: be able to log anything (e.g. right-click on a window/tree-node, shows context menu? log into tty/file/clipboard) + - log: let user copy any window content to clipboard easily (CTRL+C on windows? while moving it? context menu?). code is commented because it fails with multiple Begin/End pairs. + + - filters: set a current filter that tree node can automatically query to hide themselves + - filters: handle wildcards (with implicit leading/trailing *), regexps + - filters: fuzzy matches (may use code at blog.forrestthewoods.com/4cffeed33fdb) + + - drag'n drop, dragging helpers, demo (carry dragging info, visualize drag source before clicking, drop target, etc.) (#143, #479) + - node/graph editor (#306) + - pie menus patterns (#434) + - markup: simple markup language for color change? + +!- font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions). + - font: enforce monospace through ImFontConfig (for icons?) + - font: finish CustomRectRegister() to allow mapping unicode codepoint to custom texture data + - font: PushFontSize API (#1018) + - font/atlas: incremental updates + - font/atlas: dynamic font atlas to avoid baking huge ranges into bitmap and make scaling easier. + - font/atlas: allow user to submit its own primitive to be rectpacked, and allow to map them on a Unicode point. + - font: MemoryTTF taking ownership confusing/not obvious, maybe default should be opposite? + - font/text: vertical and/or rotated text renderer (#705) - vertical is easier clipping wise + - font: imgui_freetype.h alternative renderer (#618) + - font: optimization: for monospace font (like the default one) we can trim IndexXAdvance as long as trailing value is == FallbackXAdvance (need to make sure TAB is still correct). + - font: add support for kerning, probably optional. A) perhaps default to (32..128)^2 matrix ~ 9K entries = 36KB, then hash for non-ascii?. B) or sparse lookup into per-char list? + - font: add a simpler CalcTextSizeA() api? current one ok but not welcome if user needs to call it directly (without going through ImGui::CalcTextSize) + - font: fix AddRemapChar() to work before font has been built. + - font: (api breaking) removed "TTF" from symbol names. also because it now supports OTF. + +!- nav/keyboard: tooltip & combo boxes are messing up / not honoring keyboard tabbing. + - nav: integrate navigation branch into master. (#787) + - nav: integrate/design keyboard controls. + - nav: once tab should go through most/all widgets (in submission order?) + - nav: esc/enter default behavior for popups, e.g. be able to mark an "ok" or "cancel" button that would get triggered by those keys. + - focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622) + - focus: SetKeyboardFocusHere() on with >= 0 offset could be done on same frame (else latch and modulate on beginning of next frame) + - focus: unable to use SetKeyboardFocusHere() on clipped widgets. (#787) + - inputs: rework IO system to be able to pass actual ordered/timestamped events. use an event queue? (~#335, #71) + - inputs: allow to pass explicit double-clicks if that's the only thing the user's backend can get them. (e.g. for windows by the CS_DBLCLKS style). + - inputs: support track pad style scrolling & slider edit. + + - misc: make the ImGuiCond values linear (non-power-of-two). internal storage for ImGuiWindow can use integers to combine into flags. + - misc: provide a way to compile out the entire implementation while providing a dummy API (e.g. #define IMGUI_DUMMY_IMPL) + - misc: provide HoveredTime and ActivatedTime to ease the creation of animations. + - misc: fix for compilation settings where stdcall isn't the default (e.g. vectorcall) (#1230) + - remote: make a system like RemoteImGui first-class citizen/project (#75) + + - demo: add vertical separator demo + - demo: add a virtual scrolling example? + - examples: directx9: save/restore device state more thoroughly. + - examples: window minimize, maximize (#583) + - examples: provide a zero-framerate/idle example. + - examples: document WantCaptureKeyboard, WantCaptureMouse in example apps. (#446) + - examples: glfw: could go idle when minimized? if (glfwGetWindowAttrib(window, GLFW_ICONIFIED)) { glfwWaitEvents(); continue; } // the problem is that DeltaTime will be super high on resume, perhaps provide a way to let impl know (#440) + - optimization: replace vsnprintf with stb_printf? or enable the defines/infrastructure to allow it (#1038) + - optimization: add clipping for multi-component widgets (SliderFloatX, ColorEditX, etc.). one problem is that nav branch can't easily clip parent group when there is a move request. + - optimization: add a flag to disable most of rendering, for the case where the user expect to skip it (#335) + - optimization: use another hash function than crc32, e.g. FNV1a + - optimization/render: merge command-lists with same clip-rect into one even if they aren't sequential? (as long as in-between clip rectangle don't overlap)? + - optimization: turn some the various stack vectors into statically-sized arrays |