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TODO list update (merging a first batch of things I had laying around, +60 entries)
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TODO.txt
183
TODO.txt
@ -4,40 +4,55 @@ ISSUES & TODO LIST
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Issue numbers (#) refer to github issues listed at https://github.com/ocornut/imgui/issues
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The list below consist mostly of ideas noted down before they are requested/discussed by users (at which point it usually moves to the github)
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- doc: add a proper documentation+regression testing system (#435)
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- 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.
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- doc/test: add a proper documentation+regression testing system (#435)
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- doc/test: checklist app to verify binding/integration of imgui (test inputs, rendering, callback, etc.).
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- project: folder or separate repository with maintained helpers (e.g. imgui_memory_editor.h, imgui_stl.h, maybe imgui_dock would be there?)
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- window: calling SetNextWindowSize() every frame with <= 0 doesn't do anything, may be useful to allow (particularly when used for a single axis). (#690)
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- 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.
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- window: auto-fit feedback loop when user relies on any dynamic layout (window width multiplier, column) appears weird to end-user. clarify.
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- window: allow resizing of child windows (possibly given min/max for each axis?.)
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- window: background options for child windows, border option (disable rounding).
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- window: add a way to clear an existing window instead of appending (e.g. for tooltip override using a consistent api rather than the deferred tooltip) >
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- window: resizing from any sides? + mouse cursor directives for app.
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- window: resizing from any sides? + mouse cursor directives for app. (#822)
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!- window: begin with *p_open == false should return false.
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- window: get size/pos helpers given names (see discussion in #249)
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- window: a collapsed window can be stuck behind the main menu bar?
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- window: when window is small, prioritize resize button over close button.
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- window: detect extra End() call that pop the "Debug" window out and assert at call site instead of later.
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- window: when window is very small, prioritize resize button over close button.
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- window: detect extra End() call that pop the "Debug" window out and assert at End() call site instead of at end of frame.
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- window/tooltip: allow to set the width of a tooltip to allow TextWrapped() etc. while keeping the height automatic.
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- window: increase minimum size of a window with menus or fix the menu rendering so that it doesn't look odd.
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- draw-list: 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).
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!- scrolling: allow immediately effective change of scroll after Begin() if we haven't appended items yet
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- splitter/separator: formalize the splitter idiom into an official api (we want to handle n-way split) (#319)
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- widgets: display mode: widget-label, label-widget (aligned on column or using fixed size), label-newline-tab-widget etc. (#395)
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- widgets: clean up widgets internal toward exposing everything.
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- widgets: add disabled and read-only modes (#211)
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- window: double-clicking on title bar to minimize isn't consistent, perhaps move to single-click on left-most collapse icon?
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!- scrolling: allow immediately effective change of scroll after Begin() if we haven't appended items yet.
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- scrolling/clipping: separator on the initial position of a window is not visible (cursorpos.y <= clippos.y)
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- drawlist: move Font, FontSize, FontTexUvWhitePixel inside ImDrawList and make it self-contained (apart from drawing settings?)
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- drawlist: end-user probably can't call Clear() directly because we expect a texture to be pushed in the stack.
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- 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).
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- main: considering adding an Init() function? some constructs are awkward in the implementation because of the lack of them.
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!- main: make it so that a frame with no window registered won't refocus every window on subsequent frames (~bump LastFrameActive of all windows).
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- 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.
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- 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
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- main: IsItemHovered() info stored in a stack? so that 'if TreeNode() { Text; TreePop; } if IsHovered' return the hover state of the TreeNode?
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- main: rename the main "Debug" window to avoid ID collision with user who may want to use "Debug" with specific flags
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- widgets: display mode: widget-label, label-widget (aligned on column or using fixed size), label-newline-tab-widget etc. (#395)
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- widgets: clean up widgets internal toward exposing everything and stabilizing imgui_internals.h.
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- widgets: add disabled and read-only modes (#211)
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- widgets: alignment options in style (e.g. center Selectable, Right-Align within Button, etc.) #1260
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- widgets: activate by identifier (trigger button, focus given id)
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- input text: clean up the mess caused by converting UTF-8 <> wchar. the code is rather inefficient right now and super fragile.
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- input text: reorganize event handling, allow CharFilter to modify buffers, allow multiple events? (#541)
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- input text: expose CursorPos in char filter event (#816)
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- input text: flag to disable live update of the user buffer (also applies to float/int text input)
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- input text: resize behavior - field could stretch when being edited? hover tooltip shows more text?
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- input text: access public fields via a non-callback API e.g. InputTextGetState("xxx") that may return NULL if not active.
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- input text: flag to disable live update of the user buffer (also applies to float/int text input) (#701)
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- 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)
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- input text: hover tooltip could show unclamped text
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- input text: add ImGuiInputTextFlags_EnterToApply? (off #218)
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- input text: easier ways to update buffer (from source char*) while owned. preserve some sort of cursor position for multi-line text.
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- input text: add discard flag (e.g. ImGuiInputTextFlags_DiscardActiveBuffer) or make it easier to clear active focus for text replacement during edition (#725)
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- 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.
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- 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).
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- input text multi-line: way to dynamically grow the buffer without forcing the user to initially allocate for worse case (follow up on #200)
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- input text multi-line: line numbers? status bar? (follow up on #200)
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- 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)
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- input text multi-line: better horizontal scrolling support (#383, #1224)
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@ -46,10 +61,7 @@ The list below consist mostly of ideas noted down before they are requested/disc
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- input number: holding [-]/[+] buttons could increase the step speed non-linearly (or user-controlled)
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- input number: use mouse wheel to step up/down
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- input number: applying arithmetics ops (+,-,*,/) messes up with text edit undo stack.
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- button: provide a button that looks framed.
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- text: proper alignment options
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- image/image button: misalignment on padded/bordered button?
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- 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?
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- layout: horizontal layout helper (#97)
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- layout: horizontal flow until no space left (#404)
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- layout: more generic alignment state (left/right/centered) for single items?
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@ -62,87 +74,142 @@ The list below consist mostly of ideas noted down before they are requested/disc
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- columns: user specify columns size (#513, #125)
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- columns: flag to add horizontal separator above/below?
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- columns/layout: setup minimum line height (equivalent of automatically calling AlignFirstTextHeightToWidgets)
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- combo: sparse combo boxes (via function call?) / iterators
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- combo: contents should extends to fit label if combo widget is small
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- combo/listbox: keyboard control. need InputText-like non-active focus + key handling. considering keyboard for custom listbox (pr #203)
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- listbox: multiple selection
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- listbox: user may want to initial scroll to focus on the one selected value?
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- listbox: keyboard navigation.
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- listbox: scrolling should track modified selection.
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!- 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)
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- popups: add variant using global identifier similar to Begin/End (#402)
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- popups: border options. richer api like BeginChild() perhaps? (#197)
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- tooltip: tooltip that doesn't fit in entire screen seems to lose their "last preferred button" and may teleport when moving mouse
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- menus: local shortcuts, global shortcuts (#456, #126)
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- menus: icons
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- menus: menubars: some sort of priority / effect of main menu-bar on desktop size?
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- menus: calling BeginMenu() twice with a same name doesn't seem to append nicely
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- statusbar: add a per-window status bar helper similar to what menubar does.
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- tabs (#261, #351)
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- separator: separator on the initial position of a window is not visible (cursorpos.y <= clippos.y)
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!- color: the color helpers/typing is a mess and needs sorting out.
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- node/graph editor (#306)
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- pie menus patterns (#434)
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- drag'n drop, dragging helpers (carry dragging info, visualize drag source before clicking, drop target, etc.) (#143, #479)
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- plot: PlotLines() should use the polygon-stroke facilities (currently issues with averaging normals)
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!- color: the color helpers/types are a mess and needs sorting out.
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- color: (api break) ImGui::ColorConvertXXX functions should be loose ImColorConvertXX to match imgui_internals.h
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- plot: full featured plot/graph api w/ scrolling, zooming etc. all bell & whistle. why not!
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- plot: PlotLines() should use the polygon-stroke facilities, less verticles (currently issues with averaging normals)
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- plot: make it easier for user to draw extra stuff into the graph (e.g: draw basis, highlight certain points, 2d plots, multiple plots)
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- plot: "smooth" automatic scale over time, user give an input 0.0(full user scale) 1.0(full derived from value)
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- plot: option/feature: draw the zero line
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- plot: option/feature: draw grid, vertical markers
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- plot: option/feature: draw unit
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- 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)
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- clipper: ability to force display 1 item in the list would be convenient.
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- splitter/separator: formalize the splitter idiom into an official api (we want to handle n-way split) (#319)
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- tabs (#261, #351)
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- dock: docking extension
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- dock: dock out from a collapsing header? would work nicely but need emitting window to keep submitting the code.
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- ext: stl-ish friendly extension (imgui_stl.h) that has wrapped for std::string, std::vector etc.
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- button: provide a button that looks framed.
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- image/image button: misalignment on padded/bordered button?
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- 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?
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- image button: not taking an explicit id is odd.
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- slider: allow using the [-]/[+] buttons used by InputFloat()/InputInt()
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- slider: initial absolute click is imprecise. change to relative movement slider (same as scrollbar).
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- slider: add dragging-based widgets to edit values with mouse (on 2 axises), saving screen real-estate.
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- slider: tint background based on value (e.g. v_min -> v_max, or use 0.0f either side of the sign)
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- slider: precision dragging
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- slider: step option (#1183)
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- knob: rotating knob widget (#942)
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- slider & drag: int data passing through a float
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- drag float: up/down axis
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- drag float: added leeway on edge (e.g. a few invisible steps past the clamp limits)
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- combo: sparse combo boxes (via function call?) / iterators
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- combo: active item type could be anything else e.g. void*
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- combo: use clipper
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- combo: contents should extends to fit label if combo widget is small
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- combo: option for ComboEx to not return true when unchanged (#1182)
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- combo/listbox: keyboard control. need InputText-like non-active focus + key handling. considering keyboard for custom listbox (pr #203)
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- listbox: multiple selection.
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- listbox: unselect (#1208)
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- 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?)
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- listbox: user may want to initial scroll to focus on the one selected value?
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- listbox: expose hovered item for a basic ListBox
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- listbox: keyboard navigation.
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- listbox: scrolling should track modified selection.
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!- 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)
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- popups: if the popup functions took explicit ImGuiID it would allow the user to manage the scope of those ID. (#331)
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- popups: clicking outside (to close popup) and holding shouldn't drag window below.
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- popups: add variant using global identifier similar to Begin/End (#402)
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- popups: border options. richer api like BeginChild() perhaps? (#197)
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- tooltip: tooltip that doesn't fit in entire screen seems to lose their "last preferred direction" and may teleport when moving mouse.
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- menus: local shortcuts, global shortcuts (#456, #126)
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- menus: menubars: some sort of priority / effect of main menu-bar on desktop size?
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- menus: calling BeginMenu() twice with a same name doesn't append as Begin() does for regular windows (#1207)
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- statusbar: add a per-window status bar helper similar to what menubar does.
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- shortcuts: local-style shortcut api, e.g. parse "&Save"
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- shortcuts: global-style shortcut api e.g. "Save (CTRL+S)" -> explicit flag for recursing into closed menu
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- shortcuts: programmatically access shortcuts "Focus("&Save"))
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- text: proper alignment options in imgui_internal.h
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- text wrapped: figure out better way to use TextWrapped() in an always auto-resize context (tooltip, etc.) (#249)
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- tree node / optimization: avoid formatting when clipped.
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- tree node: tree-node/header right-most side doesn't take account of horizontal scrolling.
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- tree node: add treenode/treepush int variants? not there because (void*) cast from int warns on some platforms/settings?
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- tree node: try to apply scrolling at time of TreePop() if node was just opened and end of node is past scrolling limits?
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- tree node / selectable render mismatch which is visible if you use them both next to each other (e.g. cf. property viewer)
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- tree node: tweak color scheme to distinguish headers from selected tree node (#581)
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- textwrapped: figure out better way to use TextWrapped() in an always auto-resize context (tooltip, etc.) (#249)
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!- settings: expose enough to save/load .ini from RAM instead of fopen
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- settings: write more decent code to allow saving/loading new fields
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- settings: api for per-tool simple persistent data (bool,int,float,columns sizes,etc.) in .ini file
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- stb: add defines to disable stb implementations
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- style: add window shadows.
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!- style: better default styles.
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!- style: move border to style structure, remove _ShowBorder flag.
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- style/optimization: store rounded corners in texture to use 1 quad per corner (filled and wireframe) to lower the cost of rounding.
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- style: add window shadow (fading away from the window. Paint-style calculation of vertices alpha after drawlist would be easier)
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- style: color-box not always square?
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- 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.
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- style: try to make PushStyleVar() more robust to incorrect parameters (to be more friendly to edit & continues situation).
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- style: global scale setting.
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- style: WindowPadding needs to be EVEN as the 0.5 multiplier used on this value probably have a subtle effect on clip rectangle
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- text: simple markup language for color change?
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- font: dynamic font atlas to avoid baking huge ranges into bitmap and make scaling easier.
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- font: small opt: for monospace font (like the defalt one) we can trim IndexXAdvance as long as trailing value is == FallbackXAdvance
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- font: add support for kerning, probably optional. perhaps default to (32..128)^2 matrix ~ 36KB then hash fallback.
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- font: add a simpler CalcTextSizeA() api? current one ok but not welcome if user needs to call it directly (without going through ImGui::CalcTextSize)
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- font: fix AddRemapChar() to work before font has been built.
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- 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)
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- style editor: color child window height expressed in multiple of line height.
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- log: LogButtons() options for specifying depth and/or hiding depth slider
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- log: have more control over the log scope (e.g. stop logging when leaving current tree node scope)
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- log: be able to log anything (e.g. right-click on a window/tree-node, shows context menu? log into tty/file/clipboard)
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- 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.
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- filters: set a current filter that tree node can automatically query to hide themselves
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- filters: handle wildcards (with implicit leading/trailing *), regexps
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- filters: fuzzy matches (may use code at blog.forrestthewoods.com/4cffeed33fdb)
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- shortcuts: add a shortcut api, e.g. parse "&Save" and/or "Save (CTRL+S)", pass in to widgets or provide simple ways to use (button=activate, input=focus)
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!- keyboard: tooltip & combo boxes are messing up / not honoring keyboard tabbing
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- drag'n drop, dragging helpers, demo (carry dragging info, visualize drag source before clicking, drop target, etc.) (#143, #479)
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- node/graph editor (#306)
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- pie menus patterns (#434)
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- markup: simple markup language for color change?
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!- font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions).
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- font: PushFontSize API (#1018)
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- font/atlas: incremental updates
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- font/atlas: dynamic font atlas to avoid baking huge ranges into bitmap and make scaling easier.
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- font/atlas: allow user to submit its own primitive to be rectpacked, and allow to map them on a Unicode point.
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- font: MemoryTTF taking ownership confusing/not obvious, maybe default should be opposite?
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- font/text: vertical and/or rotated text renderer (#705) - vertical is easier clipping wise
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- font: imgui_freetype.h alternative renderer (#618)
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- 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).
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- 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?
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- font: add a simpler CalcTextSizeA() api? current one ok but not welcome if user needs to call it directly (without going through ImGui::CalcTextSize)
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- font: fix AddRemapChar() to work before font has been built.
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!- keyboard: tooltip & combo boxes are messing up / not honoring keyboard tabbing.
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- keyboard: full keyboard navigation and focus. (#323)
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- focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622)
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- focus: SetKeyboardFocusHere() on with >= 0 offset could be done on same frame (else latch and modulate on beginning of next frame)
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- input: rework IO system to be able to pass actual ordered/timestamped events. (~#335, #71)
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- input: allow to decide and pass explicit double-clicks (e.g. for windows by the CS_DBLCLKS style).
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- input: support track pad style scrolling & slider edit.
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- misc: provide a way to compile out the entire implementation while providing a dummy API (e.g. #define IMGUI_DUMMY_IMPL)
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- misc: double-clicking on title bar to minimize isn't consistent, perhaps move to single-click on left-most collapse icon?
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- misc: provide HoveredTime and ActivatedTime to ease the creation of animations.
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- style editor: have a more global HSV setter (e.g. alter hue on all elements). consider replacing active/hovered by offset in HSV space? (#438)
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- style editor: color child window height expressed in multiple of line height.
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- remote: make a system like RemoteImGui first-class citizen/project (#75)
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- drawlist: move Font, FontSize, FontTexUvWhitePixel inside ImDrawList and make it self-contained (apart from drawing settings?)
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- drawlist: end-user probably can't call Clear() directly because we expect a texture to be pushed in the stack.
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- examples: directx9: save/restore device state more thoroughly.
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- examples: window minimize, maximize (#583)
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- examples: provide a zero-framerate/idle example.
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- optimization: replace vsnprintf with stb_printf? or enable the defines/infrastructure to allow it (#1038)
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- 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.
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- optimization: add a flag to disable most of rendering, for the case where the user expect to skip it (#335)
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- optimization: use another hash function than crc32, e.g. FNV1a
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