It is generally safe to sync to the latest commit in master. The library is fairly stable and regressions tends to be fixed fast when reported.
Keeping your copy of dear imgui updated once in a while is recommended.
- Keeping your copy of dear imgui updated once in a while is recommended.
- It is generally safe to sync to the latest commit in master.
The library is fairly stable and regressions tends to be fixed fast when reported.
HOW TO UPDATE?
@ -32,27 +23,34 @@ HOW TO UPDATE?
- If you have a problem with a missing function/symbols, search for its name in the code, there will likely be a comment about it.
- If you are dropping this repository in your codebase, please leave the demo and text files in there, they will be useful.
- You may diff your previous Changelog with the one you just copied and read that diff.
- You may enable `IMGUI_DISABLE_OBSOLETE_FUNCTIONS` in imconfig.h to forcefully disable legacy names and symbols. Doing it every once in a while is a good way to make sure you are not using obsolete symbols. Dear ImGui is in active development API updates have a little more frequent lately. They are carefully documented and should not affect all users.
- You may enable `IMGUI_DISABLE_OBSOLETE_FUNCTIONS` in imconfig.h to forcefully disable legacy names and symbols.
Doing it every once in a while is a good way to make sure you are not using obsolete symbols. Dear ImGui is in active development,
and API updates have been a little more frequent lately. They are documented below and in imgui.cpp and should not affect all users.
- Nav: To keep the navigated item in view we also attempt to scroll the parent window as well as the current window. (#787)
- Nav: Added support for PageUp/PageDown (explorer-style: first aim at bottom/top most item, when scroll a page worth of contents). (#787)
- TreeNode: Fixed nodes with ImGuiTreeNodeFlags_Leaf flag always returning true which was meaningless.
- ColorEdit3, ColorEdit4, ColorButton: Added ImGuiColorEditFlags_NoDragDrop flag to disable ColorEditX as drag target and ColorButton as drag source. (#1826)
- BeginDragDropSource(): Offset tooltip position so it is off the mouse cursor, but also closer to it than regular tooltips, and not clamped by viewport. (#1739)
- BeginDragDropTarget(): Added ImGuiDragDropFlags_AcceptNoPreviewTooltip flag to request hiding the drag source tooltip from the target site. (#143)
- BeginCombo(), BeginMainMenuBar(), BeginChildFrame(): Temporary style modification are restored at the end of BeginXXX instead of EndXXX, to not affect tooltips and child windows.
- Examples: GLFW: Made it possible to Shutdown/Init the backend again (by reseting the time storage properly). (#1827) [@ice1000]
- Internals: PushItemFlag() flags are inherited by BeginChild().
- Examples: Enabled vsync by default in example applications, so it doesn't confuse people that the sample run at 2000+ fps and waste an entire CPU. (#1213, #1151).
- Various other small fixes, tweaks, comments, optimizations.
@ -160,9 +160,10 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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: drag and drop with tooltip near monitor edges lose/changes its last direction instead of locking one. The drag and drop tooltip should always follow without changing direction.
- tooltip: tooltip that doesn't fit in entire screen seems to lose their "last preferred direction" and may teleport when moving mouse.
- tooltip: allow to set the width of a tooltip to allow TextWrapped() etc. while keeping the height automatic.
- tooltip: allow tooltips with timers? or general timer policy? (instantaneous vs timed)
- tooltip: tooltips with delay timers? or general timer policy? (instantaneous vs timed) (#1485)
- menus: calling BeginMenu() twice with a same name doesn't append as Begin() does for regular windows (#1207)
- menus: menu bars inside modals windows are acting weird.
@ -215,9 +216,11 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- filters: fuzzy matches (may use code at blog.forrestthewoods.com/4cffeed33fdb)
- drag and drop: add demo. (#143, #479)
- drag and drop: have some way to know when a drag begin from BeginDragDropSource() pov
- drag and drop: allow using with other mouse buttons (where activeid won't be set). (#1637)
- drag and drop: test with reordering nodes (in a list, or a tree node). (#143)
- drag and drop: test integrating with os drag and drop.
- drag and drop: make payload optional? (#143)
- node/graph editor (#306)
- pie menus patterns (#434)
- markup: simple markup language for color change? (#902)
@ -225,7 +228,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
!- font: need handling of missing glyphs by not packing/rasterizing glyph 0 of a given font.
- font: MergeMode: flags to select overwriting or not.
- font: MergeMode: duplicate glyphs are stored in the atlas texture which is suboptimal.
- font: better vertical centering (based e.g on height of lowercase 'x'?). currently Roboto-Medium size 16 px isn't currently centered. (#1619)
- font: free the Alpha buffer if user only requested RGBA.
!- font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions).
- font: a CalcTextHeight() helper could run faster than CalcTextSize().y
@ -236,7 +238,8 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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 draw: vertical and/or rotated text renderer (#705) - vertical is easier clipping wise
- font draw: need to be able to specify wrap start position.
- 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?
@ -249,14 +252,16 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- nav: SetItemDefaultFocus() level of priority, so widget like Selectable when inside a popup could claim a low-priority default focus on the first selected iem
- nav: allow input system to be be more tolerant of io.DeltaTime=0.0f
- nav: ESC within a menu of a child window seems to exit the child window.
- nav: ESC on a flattened child
- nav: NavFlattened: ESC on a flattened child should select something.
- nav: NavFlattened: broken: in typical usage scenario, the items of a fully clipped child are currently not considered to enter into a NavFlattened child.
- nav: NavFlattened: init request doesn't select items that are part of a NavFlattened child
- nav: NavFlattened: cannot access menubar of a flattened child window with Alt/menu key (not a very common use case..).
- nav: Left within a tree node block as a fallback (ImGuiTreeNodeFlags_NavLeftJumpsBackHere by default?)
- nav: menus: pressing left-right on a vertically clipped menu bar tends to jump to the collapse/close buttons.
- nav: menus: allow pressing Menu to leave a sub-menu.
- nav: simulate right-click or context activation? (SHIFT+F10)
- nav: tabs should go through most/all widgets (in submission order?).
- nav: when CTRL-Tab/windowing is active, the HoveredWindow detection doesn't take account of the window display re-ordering.
- nav: cannot access menubar of a flattened child window with Alt/menu key (not a very common use case..).
- 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.
- nav: when activating a button that changes label (without a static ID) or disappear, can we somehow automatically recover into a nearest highlight item?
- nav: there's currently no way to completely clear focus with the keyboard. depending on patterns used by the application to dispatch inputs, it may be desirable.
@ -304,6 +309,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- demo: demonstration Plot offset
- examples: window minimize, maximize (#583)
- examples: provide a zero-framerate/idle example.
- examples: apple: apple_example should be using modern GL3.
- examples: glfw: could go idle when minimized? if (glfwGetWindowAttrib(window, GLFW_ICONIFIED)) { glfwWaitEvents(); continue; } // issue: 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.
constImRect&curr=g.NavScoringRectScreen;// Current modified source rect (NB: we've applied Max.x = Min.x in NavUpdate() to inhibit the effect of having varied item width)
g.NavScoringCount++;
if(window!=g.NavWindow)
{
// When crossing through a NavFlattened border, we score items on the other windows fully clipped
cand.ClipWithFull(window->ClipRect);// This allows the scored item to not overlap other candidates in the parent window
}
// We perform scoring on items bounding box clipped by the current clipping rectangle on the other axis (clipping on our movement axis would give us equal scores for all clipped items)
// For example, this ensure that items in one column are not reached when moving vertically from items in another column.
// FIXME-NAV: Consider policy for double scoring (scoring from NavScoringRectScreen + scoring from a rect wrapped according to current wrapping policy)
if(g.NavMoveResultOther.ID!=0&&g.NavMoveResultOther.Window->ParentWindow==g.NavWindow)// Maybe entering a flattened child? In this case solve the tie using the regular scoring rules
g.NavMoveDir=ImGuiDir_Down;// Because our scoring rect is offset, we intentionally request the opposite direction (so we can always land on the last item)
g.NavMoveDir=ImGuiDir_Up;// Because our scoring rect is offset, we intentionally request the opposite direction (so we can always land on the last item)
// *Fallback* manual-scroll with NavUp/NavDown when window has no navigable item
// *Fallback* manual-scroll with Nav directional keys when window has no navigable item
ImGuiWindow*window=g.NavWindow;
constfloatscroll_speed=ImFloor(window->CalcFontSize()*100*g.IO.DeltaTime+0.5f);// We need round the scrolling speed because sub-pixel scroll isn't reliably supported.
// When we have manually scrolled (without using navigation) and NavId becomes out of bounds, we project its bounding box to the visible area to restart navigation within visible items
// For scoring we use a single segment on the left side our current item bounding box (not touching the edge to avoid box overlap with zero-spaced items)
IM_ASSERT(!g.NavScoringRectScreen.IsInverted());// Ensure if we have a finite, non-inverted bounding box here will allows us to remove extraneous ImFabs() calls in NavScoreItem().
// Discard the drag if have not called SetDragDropPayload()
if(g.DragDropPayload.DataFrameCount==-1)
ClearDragDrop();
}
voidImGui::BeginDragDropTooltip()
{
// The default tooltip position is a little offset to give space to see the context menu (it's also clamped within the current viewport/monitor)
// In the context of a dragging tooltip we try to reduce that offset and we enforce following the cursor.
// Whatever we do we want to call SetNextWindowPos() to enforce a tooltip position and disable clipping the tooltip without our display area, like regular tooltip do.
//PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.60f); // This would be nice but e.g ColorButton with checkboard has issue with transparent colors :(
BeginTooltipEx(0,true);
}
voidImGui::EndDragDropTooltip()
{
EndTooltip();
}
// Use 'cond' to choose to submit payload on drag start or every frame
structImDrawChannel;// Temporary storage for outputting drawing commands out of order, used by ImDrawList::ChannelsSplit()
structImDrawCmd;// A single draw command within a parent ImDrawList (generally maps to 1 GPU draw call)
structImDrawData;// All draw command lists required to render the frame
structImDrawList;// A single draw command list (generally one per window)
structImDrawList;// A single draw command list (generally one per window, conceptually you may see this as a dynamic "mesh" builder)
structImDrawListSharedData;// Data shared among multiple draw lists (typically owned by parent ImGui context, but you may create one yourself)
structImDrawVert;// A single vertex (20 bytes by default, override layout with IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT)
structImFont;// Runtime data for a single font within a parent ImFontAtlas
@ -734,6 +734,7 @@ enum ImGuiDragDropFlags_
// AcceptDragDropPayload() flags
ImGuiDragDropFlags_AcceptBeforeDelivery=1<<10,// AcceptDragDropPayload() will returns true even before the mouse button is released. You can then call IsDelivery() to test if the payload needs to be delivered.
ImGuiDragDropFlags_AcceptNoDrawDefaultRect=1<<11,// Do not draw the default highlight rectangle when hovering over target.
ImGuiDragDropFlags_AcceptNoPreviewTooltip=1<<12,// Request hiding the BeginDragDropSource tooltip from the BeginDragDropTarget site.
ImGuiDragDropFlags_AcceptPeekOnly=ImGuiDragDropFlags_AcceptBeforeDelivery|ImGuiDragDropFlags_AcceptNoDrawDefaultRect// For peeking ahead and inspecting the payload before delivery.
ImGuiNavMoveFlags_LoopX=1<<0,// On failed request, restart from opposite side
ImGuiNavMoveFlags_LoopY=1<<1,
ImGuiNavMoveFlags_WrapX=1<<2,// On failed request, request from opposite side one line down (when NavDir==right) or one line up (when NavDir==left)
ImGuiNavMoveFlags_WrapY=1<<3// This is not super useful for provided for completeness
ImGuiNavMoveFlags_LoopX=1<<0,// On failed request, restart from opposite side
ImGuiNavMoveFlags_LoopY=1<<1,
ImGuiNavMoveFlags_WrapX=1<<2,// On failed request, request from opposite side one line down (when NavDir==right) or one line up (when NavDir==left)
ImGuiNavMoveFlags_WrapY=1<<3,// This is not super useful for provided for completeness
ImGuiNavMoveFlags_AllowCurrentNavId=1<<4,// Allow scoring and considering the current NavId as a move target candidate. This is used when the move source is offset (e.g. pressing PageDown actually needs to send a Up move request, if we are pressing PageDown from the bottom-most item we need to stay in place)
ImGuiNavMoveFlags_AlsoScoreVisibleSet=1<<5// Store alternate result in NavMoveResultLocalVisibleSet that only comprise elements that are already fully visible.
};
enumImGuiNavForward
@ -570,7 +572,6 @@ struct ImGuiViewportP : public ImGuiViewport
structImGuiNavMoveResult
{
ImGuiIDID;// Best candidate
ImGuiIDParentID;// Best candidate window->IDStack.back() - to compare context
ImGuiWindow*Window;// Best candidate window
floatDistBox;// Best candidate box distance to current NavId
floatDistCenter;// Best candidate center distance to current NavId
@ -578,7 +579,7 @@ struct ImGuiNavMoveResult
ImRectRectRel;// Best candidate bounding box in window relative space
ImVec2ActiveIdClickOffset;// Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
ImGuiWindow*ActiveIdWindow;
ImGuiInputSourceActiveIdSource;// Activating with mouse or nav (gamepad/keyboard)
ImGuiIDLastActiveId;// Store the last non-zero ActiveId, useful for animation.
floatLastActiveIdTimer;// Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
ImGuiWindow*MovingWindow;// Track the window we clicked on (in order to preserve focus). The actually window that is moved is generally MovingWindow->RootWindow.
ImVector<ImGuiColMod>ColorModifiers;// Stack for PushStyleColor()/PopStyleColor()
ImVector<ImGuiStyleMod>StyleModifiers;// Stack for PushStyleVar()/PopStyleVar()
@ -717,7 +720,8 @@ struct ImGuiContext
ImGuiDirNavMoveDir,NavMoveDirLast;// Direction of the move request (left/right/up/down), direction of the previous move request
ImGuiDirNavMoveClipDir;
ImGuiNavMoveResultNavMoveResultLocal;// Best move request candidate within NavWindow
ImGuiNavMoveResultNavMoveResultOther;// Best move request candidate within NavWindow's flattened hierarchy (when using the NavFlattened flag)
ImGuiNavMoveResultNavMoveResultLocalVisibleSet;// Best move request candidate within NavWindow that are mostly visible (when using ImGuiNavMoveFlags_AlsoScoreVisibleSet flag)
ImGuiNavMoveResultNavMoveResultOther;// Best move request candidate within NavWindow's flattened hierarchy (when using ImGuiWindowFlags_NavFlattened flag)
// Render
floatModalWindowDarkeningRatio;
@ -730,7 +734,8 @@ struct ImGuiContext
ImGuiPayloadDragDropPayload;
ImRectDragDropTargetRect;
ImGuiIDDragDropTargetId;
floatDragDropAcceptIdCurrRectSurface;
ImGuiDragDropFlagsDragDropAcceptFlags;
floatDragDropAcceptIdCurrRectSurface;// Target item surface (we resolve overlapping targets by prioritizing the smaller surface)
ImGuiIDDragDropAcceptIdCurr;// Target item id (set at the time of accepting the payload)
ImGuiIDDragDropAcceptIdPrev;// Target item id from previous frame (we need to store this to allow for overlapping drag and drop targets)
intDragDropAcceptFrameCount;// Last time a target expressed a desire to accept the source
IMGUI_APIvoidBeginColumns(constchar*str_id,intcount,ImGuiColumnsFlagsflags=0);// setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns().