- You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
- Depending on your configuration, in Windows you may need to run `emsdk/emsdk_env.bat` in your console to access the Emscripten command-line tools.
- Then build using `make` while in the `example_emscripten/` directory.
- Note that Emscripten 1.39.0 (October 2019) obsoleted the `BINARYEN_TRAP_MODE=clamp` compilation flag which was required with version older than 1.39.0 to avoid rendering artefacts. See [#2877](https://github.com/ocornut/imgui/issues/2877) for details. If you use an older version, uncomment this line in the Makefile:
IMGUI_APIboolIsItemActivated();// was the last item just made active (item was previously inactive).
IMGUI_APIboolIsItemDeactivated();// was the last item just made inactive (item was previously active). Useful for Undo/Redo patterns with widgets that requires continuous editing.
IMGUI_APIboolIsItemDeactivatedAfterEdit();// was the last item just made inactive and made a value change when it was active? (e.g. Slider/Drag moved). Useful for Undo/Redo patterns with widgets that requires continuous editing. Note that you may get false positives (some widgets such as Combo()/ListBox()/Selectable() will return true even when clicking an already selected item).
IMGUI_APIboolIsItemToggledOpen();// was the last item open state toggled? set by TreeNode().
IMGUI_APIboolIsAnyItemHovered();// is any item hovered?
IMGUI_APIboolIsAnyItemActive();// is any item active?
IMGUI_APIboolIsAnyItemFocused();// is any item focused?
// Lightweight std::vector<>-like class to avoid dragging dependencies (also, some implementations of STL with debug enabled are absurdly slow, we bypass it so our code runs fast in debug).
// You generally do NOT need to care or use this ever. But we need to make it available in imgui.h because some of our data structures are relying on it.
// Important: clear() frees memory, resize(0) keep the allocated buffer. We use resize(0) a lot to intentionally recycle allocated buffers across frames and amortize our costs.
// Important: our implementation does NOT call C++ constructors/destructors, we treat everything as raw data! This is intentional but be extra mindful of that,
// do NOT use this class as a std::vector replacement in your own code! Many of the structures used by dear imgui can be safely initialized by a zero-memset.
// - You generally do NOT need to care or use this ever. But we need to make it available in imgui.h because some of our public structures are relying on it.
// - We use std-like naming convention here, which is a little unusual for this codebase.
// - Important: clear() frees memory, resize(0) keep the allocated buffer. We use resize(0) a lot to intentionally recycle allocated buffers across frames and amortize our costs.
// - Important: our implementation does NOT call C++ constructors/destructors, we treat everything as raw data! This is intentional but be extra mindful of that,
// Do NOT use this class as a std::vector replacement in your own code! Many of the structures used by dear imgui can be safely initialized by a zero-memset.
structImRect;// An axis-aligned rectangle (2 points)
structImDrawDataBuilder;// Helper to build a ImDrawData instance
structImDrawListSharedData;// Data shared between all ImDrawList instances
@ -89,7 +90,7 @@ struct ImGuiTabBar; // Storage for a tab bar
structImGuiTabItem;// Storage for a tab item (within a tab bar)
structImGuiWindow;// Storage for one window
structImGuiWindowTempData;// Temporary storage for one window (that's the data which in theory we could ditch at the end of the frame)
structImGuiWindowSettings;// Storage for window settings stored in .ini file (we keep one of those even if the actual window wasn't instanced during this session)
structImGuiWindowSettings;// Storage for a window .ini settings (we keep one of those even if the actual window wasn't instanced during this session)
// Use your programming IDE "Go to definition" facility on the names of the center columns to find the actual flags/enum lists.
typedefintImGuiDataAuthority;// -> enum ImGuiDataAuthority_ // Enum: for storing the source authority (dock node vs window) of a field
#define IM_NEWLINE "\r\n" // Play it nice with Windows users (2018/05 news: Microsoft announced that Notepad will finally display Unix-style carriage returns!)
staticinlineImU32ImHash(constvoid*data,intsize,ImU32seed=0){returnsize?ImHashData(data,(size_t)size,seed):ImHashStr((constchar*)data,0,seed);}// [moved to ImHashStr/ImHashData in 1.68]
IMGUI_APIintImTextCountCharsFromUtf8(constchar*in_text,constchar*in_text_end);// return number of UTF-8 code-points (NOT bytes count)
IMGUI_APIintImTextCountUtf8BytesFromChar(constchar*in_text,constchar*in_text_end);// return number of bytes to express one char in UTF-8
IMGUI_APIintImTextCountUtf8BytesFromStr(constImWchar*in_text,constImWchar*in_text_end);// return number of bytes to express string in UTF-8
// Helpers: ImVec2/ImVec4 operators
// We are keeping those disabled by default so they don't leak in user space, to allow user enabling implicit cast operators between ImVec2 and their own types (using IM_VEC2_CLASS_EXTRA etc.)
// Helper: ImPool<>. Basic keyed storage for contiguous instances, slow/amortized insertion, O(1) indexable, O(Log N) queries by ID over a dense/hot buffer,
// Helper: ImPool<>
// Basic keyed storage for contiguous instances, slow/amortized insertion, O(1) indexable, O(Log N) queries by ID over a dense/hot buffer,
// Honor constructor/destructor. Add/remove invalidate all pointers. Indexes have the same lifetime as the associated object.
ImGuiButtonFlags_AlignTextBaseLine=1<<9,// vertically align button to match text baseline - ButtonEx() only // FIXME: Should be removed and handled by SmallButton(), not possible currently because of DC.CursorPosPrevLine
ImGuiButtonFlags_NoKeyModifiers=1<<10,// disable interaction if a key modifier is held
ImGuiButtonFlags_NoKeyModifiers=1<<10,// disable mouse interaction if a key modifier is held
ImGuiButtonFlags_NoHoldingActiveID=1<<11,// don't set ActiveId while holding the mouse (ImGuiButtonFlags_PressedOnClick only)
ImGuiButtonFlags_PressedOnDragDropHold=1<<12,// press when held into while we are drag and dropping another item (used by e.g. tree nodes, collapsing headers)
ImGuiButtonFlags_NoNavFocus=1<<13,// don't override navigation focus when activated
@ -416,8 +455,9 @@ enum ImGuiItemStatusFlags_
ImGuiItemStatusFlags_HasDisplayRect=1<<1,
ImGuiItemStatusFlags_Edited=1<<2,// Value exposed by item was edited in the current frame (should match the bool return value of most widgets)
ImGuiItemStatusFlags_ToggledSelection=1<<3,// Set when Selectable(), TreeNode() reports toggling a selection. We can't report "Selected" because reporting the change allows us to handle clipping with less issues.
ImGuiItemStatusFlags_HasDeactivated=1<<4,// Set if the widget/group is able to provide data for the ImGuiItemStatusFlags_Deactivated flag.
ImGuiItemStatusFlags_Deactivated=1<<5// Only valid if ImGuiItemStatusFlags_HasDeactivated is set.
ImGuiItemStatusFlags_ToggledOpen=1<<4,// Set when TreeNode() reports toggling their open state.
ImGuiItemStatusFlags_HasDeactivated=1<<5,// Set if the widget/group is able to provide data for the ImGuiItemStatusFlags_Deactivated flag.
ImGuiItemStatusFlags_Deactivated=1<<6// Only valid if ImGuiItemStatusFlags_HasDeactivated is set.
// Because we never destroy or rename ImGuiWindowSettings, we can store the names in a separate buffer easily.
// (this is designed to be stored in a ImChunkStream buffer, with the variable-length Name following our structure)
structImGuiWindowSettings
{
char*Name;
ImGuiIDID;
ImVec2ihPos;// NB: Settings position are stored RELATIVE to the viewport! Whereas runtime ones are absolute positions.
ImVec2ihSize;
@ -688,7 +729,8 @@ struct ImGuiWindowSettings
shortDockOrder;// Order of the last time the window was visible within its DockNode. This is used to reorder windows that are reappearing on the same frame. Same value between windows that were active and windows that were none are possible.
toggled|=(g.IO.MousePos.x>=arrow_hit_x1&&g.IO.MousePos.x<arrow_hit_x2)&&(!g.NavDisableMouseHover);// Lightweight equivalent of IsMouseHoveringRect() since ButtonBehavior() already did the job
omar
5 years ago