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# Conflicts:
#	imgui.h
This commit is contained in:
omar 2017-12-15 11:59:50 +01:00
commit 6497f5dc1b
4 changed files with 128 additions and 99 deletions
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41
TODO.txt
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@ -15,8 +15,9 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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: resizing from any sides? done. > need backends to honor mouse cursors properly. (#822)
- window: resize from borders: support some form of outer padding to make it easier to grab borders. (#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.
@ -24,9 +25,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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: resize from borders: support some form of outer padding to make it easier to grab borders. (#822)
- window: GetWindowSize() returns (0,0) when not calculated? (#1045)
- window: refactor IsWindowFocused(), merge all three existing variants, add flags, similar to #1382.
- 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)
@ -38,6 +37,8 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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
- drawlist: non-AA strokes have gaps between points (#593, #288), especially RenderCheckmark().
- drawlist: would be good to be able to deep copy a draw list (ImVector= op?).
- drawlist/opt: AddRect() axis aligned pixel aligned (no-aa) could use 8 triangles instead of 16 and no normal calculation.
- 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.
@ -47,7 +48,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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 visauls for Disabled/ReadOnly mode and expose publicly (#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)
@ -80,7 +81,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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: BeginGroup() needs a border option. (~#1496)
- 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)
@ -135,22 +136,19 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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: use clipper: make it easier to disable clipper with a single flag.
- combo: option for BeginCombo 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: 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?) (wip stash)
- 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: reopening context menu at new position should be the behavior by default? (equivalent to internal OpenPopupEx() with reopen_existing=true) (~#1497)
- 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)
@ -184,12 +182,10 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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: better default styles. (#707)
- 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.
@ -207,14 +203,16 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- 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)
- drag and drop: add demo. (#143, #479)
- 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.
- node/graph editor (#306)
- pie menus patterns (#434)
- markup: simple markup language for color change?
- markup: simple markup language for color change? (#902)
- font: better vertical centering (based e.g on height of lowercase 'x'?). currently Roboto-Medium size 16 px isn't currently centered.
- 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: better vertical centering (based e.g on height of lowercase 'x'?). currently Roboto-Medium size 16 px isn't currently centered.
- font: enforce monospace through ImFontConfig (for icons?) + create dual ImFont output from same input, reusing rasterized data but with different glyphs/AdvanceX
- font: finish CustomRectRegister() to allow mapping unicode codepoint to custom texture data
- font: PushFontSize API (#1018)
@ -246,17 +244,14 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- misc: idle refresh: expose cursor blink animation timer for backend to be able to lower framerate.
- misc: make the ImGuiCond values linear (non-power-of-two). internal storage for ImGuiWindow can use integers to combine into flags (Why?)
- 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)
- misc: detect user not calling Render() and suggest to call EndFrame()?
- remote: make a system like RemoteImGui first-class citizen/project (#75)
- demo: add vertical separator demo
- demo: add a virtual scrolling example?
- demo: add 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.

113
imgui.cpp
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@ -249,9 +249,10 @@
Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
Also read releases logs https://github.com/ocornut/imgui/releases for more details.
- 2017/12/14 (1.53) - using the ImGuiWindowFlags_NoScrollWithMouse flag on a child window forwards the mouse wheel event to the parent window, unless either ImGuiWindowFlags_NoInputs or ImGuiWindowFlags_NoScrollbar are also set.
- 2017/12/13 (1.53) - renamed GetItemsLineHeightWithSpacing() to GetFrameHeightWithSpacing(). Kept redirection function (will obsolete).
- 2017/12/13 (1.53) - marked IsRootWindowFocused() as obsolete in favor of using IsWindowFocused(ImGuiFocusedFlags_RootWindow). Kept redirection function (will obsolete).
- marked IsRootWindowOrAnyChildFocused() as obsolete in favor of using IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows). Kept redirection function (will obsolete).
- 2017/12/13 (1.53) - obsoleted IsRootWindowFocused() in favor of using IsWindowFocused(ImGuiFocusedFlags_RootWindow). Kept redirection function (will obsolete).
- obsoleted IsRootWindowOrAnyChildFocused() in favor of using IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows). Kept redirection function (will obsolete).
- 2017/12/12 (1.53) - renamed ImGuiTreeNodeFlags_AllowOverlapMode to ImGuiTreeNodeFlags_AllowItemOverlap. Kept redirection enum (will obsolete).
- 2017/12/10 (1.53) - removed SetNextWindowContentWidth(), prefer using SetNextWindowContentSize(). Kept redirection function (will obsolete).
- 2017/11/27 (1.53) - renamed ImGuiTextBuffer::append() helper to appendf(), appendv() to appendfv(). If you copied the 'Log' demo in your code, it uses appendv() so that needs to be renamed.
@ -260,7 +261,7 @@
- 2017/11/18 (1.53) - Style: removed ImGuiCol_ComboBg in favor of combo boxes using ImGuiCol_PopupBg for consistency.
- 2017/11/18 (1.53) - Style: renamed ImGuiCol_ChildWindowBg to ImGuiCol_ChildBg.
- 2017/11/18 (1.53) - Style: renamed style.ChildWindowRounding to style.ChildRounding, ImGuiStyleVar_ChildWindowRounding to ImGuiStyleVar_ChildRounding.
- 2017/11/02 (1.53) - marked IsRootWindowOrAnyChildHovered() as obsolete is favor of using IsWindowHovered(ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows);
- 2017/11/02 (1.53) - obsoleted IsRootWindowOrAnyChildHovered() in favor of using IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows);
- 2017/10/24 (1.52) - renamed IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCS to IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS for consistency.
- 2017/10/20 (1.52) - changed IsWindowHovered() default parameters behavior to return false if an item is active in another window (e.g. click-dragging item from another window to this window). You can use the newly introduced IsWindowHovered() flags to requests this specific behavior if you need it.
- 2017/10/20 (1.52) - marked IsItemHoveredRect()/IsMouseHoveringWindow() as obsolete, in favor of using the newly introduced flags for IsItemHovered() and IsWindowHovered(). See https://github.com/ocornut/imgui/issues/1382 for details.
@ -3260,12 +3261,20 @@ void ImGui::NewFrame()
window->Size *= scale;
window->SizeFull *= scale;
}
else if (!g.IO.KeyCtrl && !(window->Flags & ImGuiWindowFlags_NoScrollWithMouse))
else if (!g.IO.KeyCtrl)
{
// Mouse wheel Scrolling
float scroll_amount = 5 * window->CalcFontSize();
scroll_amount = (float)(int)ImMin(scroll_amount, (window->ContentsRegionRect.GetHeight() + window->WindowPadding.y * 2.0f) * 0.67f);
SetWindowScrollY(window, window->Scroll.y - g.IO.MouseWheel * scroll_amount);
// If a child window has the ImGuiWindowFlags_NoScrollWithMouse flag, we give a chance to scroll its parent (unless either ImGuiWindowFlags_NoInputs or ImGuiWindowFlags_NoScrollbar are also set).
ImGuiWindow* scroll_window = window;
while ((scroll_window->Flags & ImGuiWindowFlags_ChildWindow) && (scroll_window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(scroll_window->Flags & ImGuiWindowFlags_NoScrollbar) && !(scroll_window->Flags & ImGuiWindowFlags_NoInputs) && scroll_window->ParentWindow)
scroll_window = scroll_window->ParentWindow;
if (!(scroll_window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(scroll_window->Flags & ImGuiWindowFlags_NoInputs))
{
float scroll_amount = 5 * scroll_window->CalcFontSize();
scroll_amount = (float)(int)ImMin(scroll_amount, (scroll_window->ContentsRegionRect.GetHeight() + scroll_window->WindowPadding.y * 2.0f) * 0.67f);
SetWindowScrollY(scroll_window, scroll_window->Scroll.y - g.IO.MouseWheel * scroll_amount);
}
}
}
@ -12383,56 +12392,73 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags, int mouse_button)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (g.IO.MouseDown[mouse_button] == false)
return false;
ImGuiID id = window->DC.LastItemId;
if (id == 0)
bool source_drag_active = false;
ImGuiID source_id = 0;
ImGuiID source_parent_id = 0;
if (!(flags & ImGuiDragDropFlags_SourceExtern))
{
// If you want to use BeginDragDropSource() on an item with no unique identifier for interaction, such as Text() or Image(), you need to:
// A) Read the explanation below, B) Use the ImGuiDragDropFlags_SourceAllowNullID flag, C) Swallow your programmer pride.
if (!(flags & ImGuiDragDropFlags_SourceAllowNullID))
{
IM_ASSERT(0);
source_id = window->DC.LastItemId;
if (source_id != 0 && g.ActiveId != source_id) // Early out for most common case
return false;
if (g.IO.MouseDown[mouse_button] == false)
return false;
}
// Magic fallback (=somehow reprehensible) to handle items with no assigned ID, e.g. Text(), Image()
// We build a throwaway ID based on current ID stack + relative AABB of items in window.
// THE IDENTIFIER WON'T SURVIVE ANY REPOSITIONING OF THE WIDGET, so if your widget moves your dragging operation will be canceled.
// We don't need to maintain/call ClearActiveID() as releasing the button will early out this function and trigger !ActiveIdIsAlive.
bool is_hovered = window->DC.LastItemRectHoveredRect;
if (!is_hovered && (g.ActiveId == 0 || g.ActiveIdWindow != window))
return false;
id = window->DC.LastItemId = window->GetIDFromRectangle(window->DC.LastItemRect);
if (is_hovered)
SetHoveredID(id);
if (is_hovered && g.IO.MouseClicked[mouse_button])
if (source_id == 0)
{
SetActiveID(id, window);
FocusWindow(window);
// If you want to use BeginDragDropSource() on an item with no unique identifier for interaction, such as Text() or Image(), you need to:
// A) Read the explanation below, B) Use the ImGuiDragDropFlags_SourceAllowNullID flag, C) Swallow your programmer pride.
if (!(flags & ImGuiDragDropFlags_SourceAllowNullID))
{
IM_ASSERT(0);
return false;
}
// Magic fallback (=somehow reprehensible) to handle items with no assigned ID, e.g. Text(), Image()
// We build a throwaway ID based on current ID stack + relative AABB of items in window.
// THE IDENTIFIER WON'T SURVIVE ANY REPOSITIONING OF THE WIDGET, so if your widget moves your dragging operation will be canceled.
// We don't need to maintain/call ClearActiveID() as releasing the button will early out this function and trigger !ActiveIdIsAlive.
bool is_hovered = window->DC.LastItemRectHoveredRect;
if (!is_hovered && (g.ActiveId == 0 || g.ActiveIdWindow != window))
return false;
source_id = window->DC.LastItemId = window->GetIDFromRectangle(window->DC.LastItemRect);
if (is_hovered)
SetHoveredID(source_id);
if (is_hovered && g.IO.MouseClicked[mouse_button])
{
SetActiveID(source_id, window);
FocusWindow(window);
}
if (g.ActiveId == source_id) // Allow the underlying widget to display/return hovered during the mouse release frame, else we would get a flicker.
g.ActiveIdAllowOverlap = is_hovered;
}
if (g.ActiveId == id) // Allow the underlying widget to display/return hovered during the mouse release frame, else we would get a flicker.
g.ActiveIdAllowOverlap = is_hovered;
if (g.ActiveId != source_id)
return false;
source_parent_id = window->IDStack.back();
source_drag_active = IsMouseDragging(mouse_button);
}
else
{
window = NULL;
source_id = ImHash("#SourceExtern", 0);
source_drag_active = true;
}
if (g.ActiveId != id)
return false;
if (IsMouseDragging(mouse_button))
if (source_drag_active)
{
if (!g.DragDropActive)
{
IM_ASSERT(id != 0);
IM_ASSERT(source_id != 0);
ClearDragDrop();
ImGuiPayload& payload = g.DragDropPayload;
payload.SourceId = id;
payload.SourceParentId = window->IDStack.back();
payload.SourceId = source_id;
payload.SourceParentId = source_parent_id;
g.DragDropActive = true;
g.DragDropSourceFlags = flags;
g.DragDropMouseButton = mouse_button;
}
if (!(flags & ImGuiDragDropFlags_SourceNoAutoTooltip))
if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
// FIXME-DRAG
//SetNextWindowPos(g.IO.MousePos - g.ActiveIdClickOffset - g.Style.WindowPadding);
@ -12442,7 +12468,7 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags, int mouse_button)
BeginTooltipEx(ImGuiWindowFlags_NoInputs);
}
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover))
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
window->DC.LastItemRectHoveredRect = false;
return true;
@ -12455,7 +12481,7 @@ void ImGui::EndDragDropSource()
ImGuiContext& g = *GImGui;
IM_ASSERT(g.DragDropActive);
if (!(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoAutoTooltip))
if (!(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
EndTooltip();
PopStyleColor();
@ -12585,6 +12611,7 @@ const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDrop
// Render default drop visuals
payload.Preview = was_accepted_previously;
flags |= (g.DragDropSourceFlags & ImGuiDragDropFlags_AcceptNoDrawDefaultRect); // Source can also inhibit the preview (useful for external sources that lives for 1 frame)
if (!(flags & ImGuiDragDropFlags_AcceptNoDrawDefaultRect) && payload.Preview)
{
// FIXME-DRAG: Settle on a proper default visuals for drop target.
@ -12596,7 +12623,7 @@ const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDrop
}
g.DragDropAcceptFrameCount = g.FrameCount;
payload.Delivery = was_accepted_previously && IsMouseReleased(g.DragDropMouseButton);
payload.Delivery = was_accepted_previously && !IsMouseDown(g.DragDropMouseButton); // For extern drag sources affecting os window focus, it's easier to just test !IsMouseDown() instead of IsMouseReleased()
if (!payload.Delivery && !(flags & ImGuiDragDropFlags_AcceptBeforeDelivery))
return NULL;
@ -12606,7 +12633,7 @@ const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDrop
// We don't really use/need this now, but added it for the sake of consistency and because we might need it later.
void ImGui::EndDragDropTarget()
{
ImGuiContext& g = *GImGui;
ImGuiContext& g = *GImGui; (void)g;
IM_ASSERT(g.DragDropActive);
}

62
imgui.h
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@ -370,7 +370,7 @@ namespace ImGui
IMGUI_API void TreePop(); // ~ Unindent()+PopId()
IMGUI_API void TreeAdvanceToLabelPos(); // advance cursor x position by GetTreeNodeToLabelSpacing()
IMGUI_API float GetTreeNodeToLabelSpacing(); // horizontal distance preceding label when using TreeNode*() or Bullet() == (g.FontSize + style.FramePadding.x*2) for a regular unframed TreeNode
IMGUI_API void SetNextTreeNodeOpen(bool is_open, ImGuiCond cond = 0); // set next TreeNode/CollapsingHeader open state.
IMGUI_API void SetNextTreeNodeOpen(bool is_open, ImGuiCond cond = 0); // set next TreeNode/CollapsingHeader open state.
IMGUI_API bool CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags = 0); // if returning 'true' the header is open. doesn't indent nor push on ID stack. user doesn't have to call TreePop().
IMGUI_API bool CollapsingHeader(const char* label, bool* p_open, ImGuiTreeNodeFlags flags = 0); // when 'p_open' isn't NULL, display an additional small close button on upper right of the header
@ -379,9 +379,9 @@ namespace ImGui
IMGUI_API bool Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0,0));
IMGUI_API bool ListBox(const char* label, int* current_item, const char* const* items, int items_count, int height_in_items = -1);
IMGUI_API bool ListBox(const char* label, int* current_item, bool (*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int height_in_items = -1);
IMGUI_API bool ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0,0)); // use if you want to reimplement ListBox() will custom data or interactions. make sure to call ListBoxFooter() afterwards.
IMGUI_API bool ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0,0)); // use if you want to reimplement ListBox() will custom data or interactions. make sure to call ListBoxFooter() afterwards.
IMGUI_API bool ListBoxHeader(const char* label, int items_count, int height_in_items = -1); // "
IMGUI_API void ListBoxFooter(); // terminate the scrolling region
IMGUI_API void ListBoxFooter(); // terminate the scrolling region
// Widgets: Value() Helpers. Output single value in "name: value" format (tip: freely declare more in your code to handle your types. you can add functions to the ImGui namespace)
IMGUI_API void Value(const char* prefix, bool b);
@ -427,11 +427,11 @@ namespace ImGui
// Drag and Drop
// [BETA API] Missing Demo code. API may evolve.
IMGUI_API bool BeginDragDropSource(ImGuiDragDropFlags flags = 0, int mouse_button = 0); // Call when the current item is active. If this return true, you can call SetDragDropPayload() + EndDragDropSource()
IMGUI_API bool SetDragDropPayload(const char* type, const void* data, size_t data_size, ImGuiCond cond = 0); // Type is a user defined string of maximum 8 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui.
IMGUI_API bool BeginDragDropSource(ImGuiDragDropFlags flags = 0, int mouse_button = 0); // call when the current item is active. If this return true, you can call SetDragDropPayload() + EndDragDropSource()
IMGUI_API bool SetDragDropPayload(const char* type, const void* data, size_t size, ImGuiCond cond = 0);// type is a user defined string of maximum 8 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui.
IMGUI_API void EndDragDropSource();
IMGUI_API bool BeginDragDropTarget(); // Call after submitting an item that may receive an item. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0); // Accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
IMGUI_API bool BeginDragDropTarget(); // call after submitting an item that may receive an item. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0); // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
IMGUI_API void EndDragDropTarget();
// Clipping
@ -450,7 +450,7 @@ namespace ImGui
IMGUI_API void SetKeyboardFocusHere(int offset = 0); // focus keyboard on the next widget. Use positive 'offset' to access sub components of a multiple component widget. Use -1 to access previous widget.
// Utilities
IMGUI_API bool IsItemHovered(ImGuiHoveredFlags flags = 0); // is the last item hovered by mouse (and usable)? or we are currently using Nav and the item is focused.
IMGUI_API bool IsItemHovered(ImGuiHoveredFlags flags = 0); // is the last item hovered? (and usable, aka not blocked by a popup, etc.). See ImGuiHoveredFlags for more options.
IMGUI_API bool IsItemActive(); // is the last item active? (e.g. button being held, text field being edited- items that don't interact will always return false)
IMGUI_API bool IsItemFocused(); // is the last item focused for keyboard/gamepad navigation?
IMGUI_API bool IsItemClicked(int mouse_button = 0); // is the last item clicked? (e.g. button/node just clicked on)
@ -458,9 +458,9 @@ namespace ImGui
IMGUI_API bool IsAnyItemHovered();
IMGUI_API bool IsAnyItemActive();
IMGUI_API bool IsAnyItemFocused();
IMGUI_API ImVec2 GetItemRectMin(); // get bounding rect of last item in screen space
IMGUI_API ImVec2 GetItemRectMin(); // get bounding rectangle of last item, in screen space
IMGUI_API ImVec2 GetItemRectMax(); // "
IMGUI_API ImVec2 GetItemRectSize(); // "
IMGUI_API ImVec2 GetItemRectSize(); // get size of last item, in screen space
IMGUI_API void SetItemAllowOverlap(); // allow last item to be overlapped by a subsequent item. sometimes useful with invisible buttons, selectables, etc. to catch unused area.
IMGUI_API bool IsWindowFocused(ImGuiFocusedFlags flags = 0); // is current window focused? or its root/child, depending on flags. see flags for options.
IMGUI_API bool IsWindowHovered(ImGuiHoveredFlags flags = 0); // is current window hovered (and typically: not blocked by a popup/modal)? see flags for options.
@ -529,7 +529,7 @@ enum ImGuiWindowFlags_
ImGuiWindowFlags_NoResize = 1 << 1, // Disable user resizing with the lower-right grip
ImGuiWindowFlags_NoMove = 1 << 2, // Disable user moving the window
ImGuiWindowFlags_NoScrollbar = 1 << 3, // Disable scrollbars (window can still scroll with mouse or programatically)
ImGuiWindowFlags_NoScrollWithMouse = 1 << 4, // Disable user vertically scrolling with mouse wheel
ImGuiWindowFlags_NoScrollWithMouse = 1 << 4, // Disable user vertically scrolling with mouse wheel. On child window, mouse wheel will be forwarded to the parent unless NoScrollbar is also set.
ImGuiWindowFlags_NoCollapse = 1 << 5, // Disable user collapsing window by double-clicking on it
ImGuiWindowFlags_AlwaysAutoResize = 1 << 6, // Resize every window to its content every frame
//ImGuiWindowFlags_ShowBorders = 1 << 7, // Show borders around windows and items (OBSOLETE! Use e.g. style.FrameBorderSize=1.0f to enable borders).
@ -639,24 +639,26 @@ enum ImGuiHoveredFlags_
//ImGuiHoveredFlags_AllowWhenBlockedByModal = 1 << 3, // Return true even if a modal popup window is normally blocking access to this item/window. FIXME-TODO: Unavailable yet.
ImGuiHoveredFlags_AllowWhenBlockedByActiveItem = 1 << 4, // Return true even if an active item is blocking access to this item/window. Useful for Drag and Drop patterns.
ImGuiHoveredFlags_AllowWhenOverlapped = 1 << 5, // Return true even if the position is overlapped by another window
ImGuiHoveredFlags_RectOnly = ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenOverlapped
ImGuiHoveredFlags_RectOnly = ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenOverlapped,
ImGuiHoveredFlags_RootAndChildWindows = ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows
};
// Flags for ImGui::BeginDragDropSource(), ImGui::AcceptDragDropPayload()
enum ImGuiDragDropFlags_
{
// BeginDragDropSource() flags
ImGuiDragDropFlags_SourceNoAutoTooltip = 1 << 0, // By default, a successful call to BeginDragDropSource opens a tooltip so you can display a preview or description of the dragged contents. This flag disable this behavior.
ImGuiDragDropFlags_SourceNoPreviewTooltip = 1 << 0, // By default, a successful call to BeginDragDropSource opens a tooltip so you can display a preview or description of the source contents. This flag disable this behavior.
ImGuiDragDropFlags_SourceNoDisableHover = 1 << 1, // By default, when dragging we clear data so that IsItemHovered() will return true, to avoid subsequent user code submitting tooltips. This flag disable this behavior so you can still call IsItemHovered() on the source item.
ImGuiDragDropFlags_SourceNoHoldToOpenOthers = 1 << 2, // Disable the behavior that allows to open tree nodes and collapsing header by holding over them while dragging a source item.
ImGuiDragDropFlags_SourceAllowNullID = 1 << 3, // Allow items such as Text(), Image() that have no unique identifier to be used as drag source, by manufacturing a temporary identifier based on their window-relative position. This is extremely unusual within the dear imgui ecosystem and so we made it explicit.
ImGuiDragDropFlags_SourceExtern = 1 << 4, // External source (from outside of imgui), won't attempt to read current item/window info. Will always return true. Only one Extern source can be active simultaneously.
// 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_AcceptPeekOnly = ImGuiDragDropFlags_AcceptBeforeDelivery | ImGuiDragDropFlags_AcceptNoDrawDefaultRect // For peeking ahead and inspecting the payload before delivery.
};
// Standard Drag and Drop payload types. Types starting with '_' are defined by Dear ImGui.
// Standard Drag and Drop payload types. You can define you own payload types using 8-characters long strings. Types starting with '_' are defined by Dear ImGui.
#define IMGUI_PAYLOAD_TYPE_COLOR_3F "_COL3F" // float[3] // Standard type for colors, without alpha. User code may use this type.
#define IMGUI_PAYLOAD_TYPE_COLOR_4F "_COL4F" // float[4] // Standard type for colors. User code may use this type.
@ -770,7 +772,7 @@ enum ImGuiCol_
};
// Enumeration for PushStyleVar() / PopStyleVar() to temporarily modify the ImGuiStyle structure.
// NB: the enum only refers to fields of ImGuiStyle which makes sense to be pushed/poped inside UI code. During initialization, feel free to just poke into ImGuiStyle directly.
// NB: the enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code. During initialization, feel free to just poke into ImGuiStyle directly.
// NB: if changing this enum, you need to update the associated internal table GStyleVarInfo[] accordingly. This is where we link enum values to members offset/type.
enum ImGuiStyleVar_
{
@ -1022,18 +1024,18 @@ struct ImGuiIO
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
namespace ImGui
{
static inline bool IsRootWindowFocused() { return IsWindowFocused(ImGuiFocusedFlags_RootWindow); } // OBSOLETE 1.53+
static inline bool IsRootWindowOrAnyChildFocused() { return IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows); } // OBSOLETE 1.53+
static inline void SetNextWindowContentWidth(float width) { SetNextWindowContentSize(ImVec2(width, 0.0f)); } // OBSOLETE 1.53+ (nb: original version preserved last Y value set by SetNextWindowContentSize())
static inline bool IsRootWindowOrAnyChildHovered(ImGuiHoveredFlags flags = 0) { return IsItemHovered(flags | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows); } // OBSOLETE 1.53+ use flags directly
bool Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // OBSOLETE 1.52+. use SetNextWindowSize() instead if you want to set a window size.
static inline void AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); } // OBSOLETE 1.52+
static inline void SetNextWindowPosCenter(ImGuiCond cond = 0) { SetNextWindowPos(ImVec2(GetIO().DisplaySize.x * 0.5f, GetIO().DisplaySize.y * 0.5f), cond, ImVec2(0.5f, 0.5f)); } // OBSOLETE 1.52+
static inline bool IsItemHoveredRect() { return IsItemHovered(ImGuiHoveredFlags_RectOnly); } // OBSOLETE 1.51+
static inline bool IsPosHoveringAnyWindow(const ImVec2&) { IM_ASSERT(0); return false; } // OBSOLETE 1.51+. This was partly broken. You probably wanted to use ImGui::GetIO().WantCaptureMouse instead.
static inline bool IsMouseHoveringAnyWindow() { return IsAnyWindowHovered(); } // OBSOLETE 1.51+
static inline bool IsMouseHoveringWindow() { return IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem); } // OBSOLETE 1.51+
static inline bool CollapsingHeader(const char* label, const char* str_id, bool framed = true, bool default_open = false) { (void)str_id; (void)framed; ImGuiTreeNodeFlags default_open_flags = 1 << 5; return CollapsingHeader(label, (default_open ? default_open_flags : 0)); } // OBSOLETE 1.49+
static inline bool IsRootWindowFocused() { return IsWindowFocused(ImGuiFocusedFlags_RootWindow); } // OBSOLETE 1.53+
static inline bool IsRootWindowOrAnyChildFocused() { return IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows); } // OBSOLETE 1.53+
static inline void SetNextWindowContentWidth(float width) { SetNextWindowContentSize(ImVec2(width, 0.0f)); } // OBSOLETE 1.53+ (nb: original version preserved last Y value set by SetNextWindowContentSize())
static inline bool IsRootWindowOrAnyChildHovered(ImGuiHoveredFlags flags = 0) { return IsItemHovered(flags | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows); } // OBSOLETE 1.53+ use flags directly
bool Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // OBSOLETE 1.52+. use SetNextWindowSize() instead if you want to set a window size.
static inline void AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); } // OBSOLETE 1.52+
static inline void SetNextWindowPosCenter(ImGuiCond cond = 0) { SetNextWindowPos(ImVec2(GetIO().DisplaySize.x * 0.5f, GetIO().DisplaySize.y * 0.5f), cond, ImVec2(0.5f, 0.5f)); } // OBSOLETE 1.52+
static inline bool IsItemHoveredRect() { return IsItemHovered(ImGuiHoveredFlags_RectOnly); } // OBSOLETE 1.51+
static inline bool IsPosHoveringAnyWindow(const ImVec2&) { IM_ASSERT(0); return false; } // OBSOLETE 1.51+. This was partly broken. You probably wanted to use ImGui::GetIO().WantCaptureMouse instead.
static inline bool IsMouseHoveringAnyWindow() { return IsAnyWindowHovered(); } // OBSOLETE 1.51+
static inline bool IsMouseHoveringWindow() { return IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem); } // OBSOLETE 1.51+
static inline bool CollapsingHeader(const char* label, const char* str_id, bool framed = true, bool default_open = false) { (void)str_id; (void)framed; ImGuiTreeNodeFlags default_open_flags = 1 << 5; return CollapsingHeader(label, (default_open ? default_open_flags : 0)); } // OBSOLETE 1.49+
}
#endif
@ -1248,8 +1250,8 @@ struct ImGuiTextEditCallbackData
struct ImGuiSizeConstraintCallbackData
{
void* UserData; // Read-only. What user passed to SetNextWindowSizeConstraints()
ImVec2 Pos; // Read-only. Window position, for reference.
ImVec2 CurrentSize; // Read-only. Current window size.
ImVec2 Pos; // Read-only. Window position, for reference.
ImVec2 CurrentSize; // Read-only. Current window size.
ImVec2 DesiredSize; // Read-write. Desired size, based on user's mouse position. Write to this field to restrain resizing.
};
@ -1356,7 +1358,7 @@ struct ImGuiListClipper
// The expected behavior from your rendering function is 'if (cmd.UserCallback != NULL) cmd.UserCallback(parent_list, cmd); else RenderTriangles()'
typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* cmd);
// Typically, 1 command = 1 gpu draw call (unless command is a callback)
// Typically, 1 command = 1 GPU draw call (unless command is a callback)
struct ImDrawCmd
{
unsigned int ElemCount; // Number of indices (multiple of 3) to be rendered as triangles. Vertices are stored in the callee ImDrawList's vtx_buffer[] array, indices in idx_buffer[].

11
imgui_demo.cpp
View File

@ -1000,6 +1000,9 @@ void ImGui::ShowTestWindow(bool* p_open)
{
if (ImGui::TreeNode("Child regions"))
{
static bool disable_mouse_wheel = false;
ImGui::Checkbox("Disable Mouse Wheel", &disable_mouse_wheel);
ImGui::Text("Without border");
static int line = 50;
bool goto_line = ImGui::Button("Goto");
@ -1007,7 +1010,8 @@ void ImGui::ShowTestWindow(bool* p_open)
ImGui::PushItemWidth(100);
goto_line |= ImGui::InputInt("##Line", &line, 0, 0, ImGuiInputTextFlags_EnterReturnsTrue);
ImGui::PopItemWidth();
ImGui::BeginChild("Sub1", ImVec2(ImGui::GetWindowContentRegionWidth() * 0.5f,300), false, ImGuiWindowFlags_HorizontalScrollbar);
ImGui::BeginChild("Sub1", ImVec2(ImGui::GetWindowContentRegionWidth() * 0.5f,300), false, ImGuiWindowFlags_HorizontalScrollbar | (disable_mouse_wheel ? ImGuiWindowFlags_NoScrollWithMouse : 0));
for (int i = 0; i < 100; i++)
{
ImGui::Text("%04d: scrollable region", i);
@ -1021,7 +1025,7 @@ void ImGui::ShowTestWindow(bool* p_open)
ImGui::SameLine();
ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 5.0f);
ImGui::BeginChild("Sub2", ImVec2(0,300), true);
ImGui::BeginChild("Sub2", ImVec2(0,300), true, (disable_mouse_wheel ? ImGuiWindowFlags_NoScrollWithMouse : 0));
ImGui::Text("With border");
ImGui::Columns(2);
for (int i = 0; i < 100; i++)
@ -2601,7 +2605,8 @@ struct ExampleAppConsole
ImGui::PopStyleVar();
ImGui::Separator();
ImGui::BeginChild("ScrollingRegion", ImVec2(0, -ImGui::GetStyle().ItemSpacing.y - ImGui::GetFrameHeightWithSpacing()), false, ImGuiWindowFlags_HorizontalScrollbar); // Leave room for 1 separator + 1 InputText
const float footer_height_to_reserve = ImGui::GetStyle().ItemSpacing.y + ImGui::GetFrameHeightWithSpacing(); // 1 separator, 1 input text
ImGui::BeginChild("ScrollingRegion", ImVec2(0, -footer_height_to_reserve), false, ImGuiWindowFlags_HorizontalScrollbar); // Leave room for 1 separator + 1 InputText
if (ImGui::BeginPopupContextWindow())
{
if (ImGui::Selectable("Clear")) ClearLog();