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Merge branch 'master' into docking

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# Conflicts:
#	examples/example_apple_opengl2/main.mm
#	imgui.cpp
This commit is contained in:
ocornut
2020-10-01 13:33:08 +02:00
parent c49330fc52 5f336ce8f8
commit 958e58b06b
11 changed files with 227 additions and 87 deletions
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137
imgui.cpp
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@ -382,6 +382,8 @@ CODE
If you query mouse positions to interact with non-imgui coordinates you will need to offset them, e.g. subtract GetWindowViewport()->Pos.
- 2020/XX/XX (1.XX) - Moved IME support functions from io.ImeSetInputScreenPosFn, io.ImeWindowHandle to the PlatformIO api.
- 2020/09/25 (1.79) - renamed ImGuiSliderFlags_ClampOnInput to ImGuiSliderFlags_AlwaysClamp. Kept redirection enum (will obsolete sooner because previous name was added recently).
- 2020/09/25 (1.79) - renamed style.TabMinWidthForUnselectedCloseButton to style.TabMinWidthForCloseButton.
- 2020/09/21 (1.79) - renamed OpenPopupContextItem() back to OpenPopupOnItemClick(), reverting the change from 1.77. For varieties of reason this is more self-explanatory.
- 2020/09/21 (1.79) - removed return value from OpenPopupOnItemClick() - returned true on mouse release on item - because it is inconsistent with other popup APIs and makes others misleading. It's also and unnecessary: you can use IsWindowAppearing() after BeginPopup() for a similar result.
- 2020/09/17 (1.79) - removed ImFont::DisplayOffset in favor of ImFontConfig::GlyphOffset. DisplayOffset was applied after scaling and not very meaningful/useful outside of being needed by the default ProggyClean font. It was also getting in the way of better font scaling, so let's get rid of it now!
@ -968,7 +970,7 @@ ImGuiStyle::ImGuiStyle()
LogSliderDeadzone = 4.0f; // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
TabRounding = 4.0f; // Radius of upper corners of a tab. Set to 0.0f to have rectangular tabs.
TabBorderSize = 0.0f; // Thickness of border around tabs.
TabMinWidthForUnselectedCloseButton = 0.0f; // Minimum width for close button to appears on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
TabMinWidthForCloseButton = 0.0f; // Minimum width for close button to appears on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
ColorButtonPosition = ImGuiDir_Right; // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
ButtonTextAlign = ImVec2(0.5f,0.5f);// Alignment of button text when button is larger than text.
SelectableTextAlign = ImVec2(0.0f,0.0f);// Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
@ -1007,8 +1009,7 @@ void ImGuiStyle::ScaleAllSizes(float scale_factor)
GrabRounding = ImFloor(GrabRounding * scale_factor);
LogSliderDeadzone = ImFloor(LogSliderDeadzone * scale_factor);
TabRounding = ImFloor(TabRounding * scale_factor);
if (TabMinWidthForUnselectedCloseButton != FLT_MAX)
TabMinWidthForUnselectedCloseButton = ImFloor(TabMinWidthForUnselectedCloseButton * scale_factor);
TabMinWidthForCloseButton = (TabMinWidthForCloseButton != FLT_MAX) ? ImFloor(TabMinWidthForCloseButton * scale_factor) : FLT_MAX;
DisplayWindowPadding = ImFloor(DisplayWindowPadding * scale_factor);
DisplaySafeAreaPadding = ImFloor(DisplaySafeAreaPadding * scale_factor);
MouseCursorScale = ImFloor(MouseCursorScale * scale_factor);
@ -2227,35 +2228,44 @@ static void SetCursorPosYAndSetupForPrevLine(float pos_y, float line_height)
columns->LineMinY = window->DC.CursorPos.y; // Setting this so that cell Y position are set properly
}
// Use case A: Begin() called from constructor with items_height<0, then called again from Sync() in StepNo 1
ImGuiListClipper::ImGuiListClipper(int items_count, float items_height)
{
DisplayStart = DisplayEnd = 0;
ItemsCount = -1;
StepNo = 0;
ItemsHeight = StartPosY = 0.0f;
Begin(items_count, items_height);
}
ImGuiListClipper::~ImGuiListClipper()
{
IM_ASSERT(ItemsCount == -1 && "Forgot to call End(), or to Step() until false?");
}
// Use case A: Begin() called from constructor with items_height<0, then called again from Step() in StepNo 1
// Use case B: Begin() called from constructor with items_height>0
// FIXME-LEGACY: Ideally we should remove the Begin/End functions but they are part of the legacy API we still support. This is why some of the code in Step() calling Begin() and reassign some fields, spaghetti style.
void ImGuiListClipper::Begin(int count, float items_height)
void ImGuiListClipper::Begin(int items_count, float items_height)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
StartPosY = window->DC.CursorPos.y;
ItemsHeight = items_height;
ItemsCount = count;
ItemsCount = items_count;
StepNo = 0;
DisplayEnd = DisplayStart = -1;
if (ItemsHeight > 0.0f)
{
ImGui::CalcListClipping(ItemsCount, ItemsHeight, &DisplayStart, &DisplayEnd); // calculate how many to clip/display
if (DisplayStart > 0)
SetCursorPosYAndSetupForPrevLine(StartPosY + DisplayStart * ItemsHeight, ItemsHeight); // advance cursor
StepNo = 2;
}
DisplayStart = -1;
DisplayEnd = 0;
}
void ImGuiListClipper::End()
{
if (ItemsCount < 0)
if (ItemsCount < 0) // Already ended
return;
// In theory here we should assert that ImGui::GetCursorPosY() == StartPosY + DisplayEnd * ItemsHeight, but it feels saner to just seek at the end and not assert/crash the user.
if (ItemsCount < INT_MAX)
SetCursorPosYAndSetupForPrevLine(StartPosY + ItemsCount * ItemsHeight, ItemsHeight); // advance cursor
if (ItemsCount < INT_MAX && DisplayStart >= 0)
SetCursorPosYAndSetupForPrevLine(StartPosY + ItemsCount * ItemsHeight, ItemsHeight);
ItemsCount = -1;
StepNo = 3;
}
@ -2265,38 +2275,70 @@ bool ImGuiListClipper::Step()
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (ItemsCount == 0 || window->SkipItems)
// Reached end of list
if (DisplayEnd >= ItemsCount || window->SkipItems)
{
End();
return false;
}
// Step 0: Let you process the first element (regardless of it being visible or not, so we can measure the element height)
if (StepNo == 0)
{
StartPosY = window->DC.CursorPos.y;
if (ItemsHeight <= 0.0f)
{
// Submit the first item so we can measure its height (generally it is 0..1)
DisplayStart = 0;
DisplayEnd = 1;
StepNo = 1;
return true;
}
// Already has item height (given by user in Begin): skip to calculating step
DisplayStart = DisplayEnd;
StepNo = 2;
}
// Step 1: the clipper infer height from first element
if (StepNo == 1)
{
IM_ASSERT(ItemsHeight <= 0.0f);
ItemsHeight = window->DC.CursorPos.y - StartPosY;
IM_ASSERT(ItemsHeight > 0.0f && "Unable to calculate item height! First item hasn't moved the cursor vertically!");
StepNo = 2;
}
// Step 2: calculate the actual range of elements to display, and position the cursor before the first element
if (StepNo == 2)
{
IM_ASSERT(ItemsHeight > 0.0f);
int already_submitted = DisplayEnd;
ImGui::CalcListClipping(ItemsCount - already_submitted, ItemsHeight, &DisplayStart, &DisplayEnd);
DisplayStart += already_submitted;
DisplayEnd += already_submitted;
// Seek cursor
if (DisplayStart > already_submitted)
SetCursorPosYAndSetupForPrevLine(StartPosY + DisplayStart * ItemsHeight, ItemsHeight);
StepNo = 3;
return true;
}
// Step 3: the clipper validate that we have reached the expected Y position (corresponding to element DisplayEnd),
// Advance the cursor to the end of the list and then returns 'false' to end the loop.
if (StepNo == 3)
{
// Seek cursor
if (ItemsCount < INT_MAX)
SetCursorPosYAndSetupForPrevLine(StartPosY + ItemsCount * ItemsHeight, ItemsHeight); // advance cursor
ItemsCount = -1;
return false;
}
if (StepNo == 0) // Step 0: the clipper let you process the first element, regardless of it being visible or not, so we can measure the element height.
{
DisplayStart = 0;
DisplayEnd = 1;
StartPosY = window->DC.CursorPos.y;
StepNo = 1;
return true;
}
if (StepNo == 1) // Step 1: the clipper infer height from first element, calculate the actual range of elements to display, and position the cursor before the first element.
{
if (ItemsCount == 1) { ItemsCount = -1; return false; }
float items_height = window->DC.CursorPos.y - StartPosY;
IM_ASSERT(items_height > 0.0f); // If this triggers, it means Item 0 hasn't moved the cursor vertically
Begin(ItemsCount - 1, items_height);
DisplayStart++;
DisplayEnd++;
StepNo = 3;
return true;
}
if (StepNo == 2) // Step 2: empty step only required if an explicit items_height was passed to constructor or Begin() and user still call Step(). Does nothing and switch to Step 3.
{
IM_ASSERT(DisplayStart >= 0 && DisplayEnd >= 0);
StepNo = 3;
return true;
}
if (StepNo == 3) // Step 3: the clipper validate that we have reached the expected Y position (corresponding to element DisplayEnd), advance the cursor to the end of the list and then returns 'false' to end the loop.
End();
IM_ASSERT(0);
return false;
}
@ -8786,7 +8828,7 @@ ImVec2 ImGui::FindBestWindowPosForPopupEx(const ImVec2& ref_pos, const ImVec2& s
// For tooltip we prefer avoiding the cursor at all cost even if it means that part of the tooltip won't be visible.
if (policy == ImGuiPopupPositionPolicy_Tooltip)
return ref_pos + ImVec2(2, 2);
return ref_pos + ImVec2(2, 2);
// Otherwise try to keep within display
ImVec2 pos = ref_pos;
@ -15596,7 +15638,8 @@ void ImGui::ShowMetricsWindow(bool* p_open)
NodeDrawCmdShowMeshAndBoundingBox(fg_draw_list, draw_list, pcmd, elem_offset, true, false);
// Display individual triangles/vertices. Hover on to get the corresponding triangle highlighted.
ImGuiListClipper clipper(pcmd->ElemCount / 3); // Manually coarse clip our print out of individual vertices to save CPU, only items that may be visible.
ImGuiListClipper clipper;
clipper.Begin(pcmd->ElemCount / 3); // Manually coarse clip our print out of individual vertices to save CPU, only items that may be visible.
while (clipper.Step())
for (int prim = clipper.DisplayStart, idx_i = elem_offset + clipper.DisplayStart * 3; prim < clipper.DisplayEnd; prim++)
{