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Hide new windows for one frame until they calculate their size. Also fixes SetNextWindowPos() given a non-zero pivot. (#1694)

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This commit is contained in:
omar 2018-04-04 19:35:08 +02:00
parent 5aa3f99b4c
commit fc30462f18
2 changed files with 8 additions and 2 deletions
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1
CHANGELOG.txt
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@ -257,6 +257,7 @@ Other Changes:
- Window: Fixed a one frame glitch. When an appearing window claimed the focus themselves, the title bar wouldn't use the focused color for one frame.
- Window: Added ImGuiWindowFlags_ResizeFromAnySide flag to resize from any borders or from the lower-left corner of a window. This requires your backend to honor GetMouseCursor() requests for full usability. (#822)
- Window: Sizing fixes when useing SetNextWindowSize() on individual axises.
- Window: Hide new window for one frame until they calculate their size. Also fixes SetNextWindowPos() given a non-zero pivot. (#1694)
- Window: Made mouse wheel scrolling accomodate better to windows that are smaller than the scroll step.
- Window: SetNextWindowContentSize() adjust for the size of decorations (title bar/menu bar), but _not_ for borders are we consistently make borders not affect layout.
If you need a non-child window of an exact size with border enabled but zero window padding, you'll need to accodomate for the border size yourself.

9
imgui.cpp
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@ -5597,7 +5597,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// Find or create
ImGuiWindow* window = FindWindowByName(name);
if (!window)
const bool window_just_created = (window == NULL);
if (window_just_created)
{
ImVec2 size_on_first_use = (g.NextWindowData.SizeCond != 0) ? g.NextWindowData.SizeVal : ImVec2(0.0f, 0.0f); // Any condition flag will do since we are creating a new window here.
window = CreateNewWindow(name, size_on_first_use, flags);
@ -5759,7 +5760,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// Hide popup/tooltip window when re-opening while we measure size (because we recycle the windows)
if (window->HiddenFrames > 0)
window->HiddenFrames--;
if ((flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) != 0 && window_just_activated_by_user)
if (window_just_activated_by_user && (flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) != 0)
{
window->HiddenFrames = 1;
if (flags & ImGuiWindowFlags_AlwaysAutoResize)
@ -5772,6 +5773,10 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
}
}
// Hide new windows for one frame until they calculate their size
if (window_just_created && (!window_size_x_set_by_api || !window_size_y_set_by_api))
window->HiddenFrames = 1;
// Calculate auto-fit size, handle automatic resize
const ImVec2 size_auto_fit = CalcSizeAutoFit(window, window->SizeContents);
ImVec2 size_full_modified(FLT_MAX, FLT_MAX);