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Added SetNextWindowPosCenter() (#249)

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docking
ocornut 9 years ago
parent bcbf53857c
commit 5436266963
2 changed files with 28 additions and 18 deletions
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37
imgui.cpp
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@ -3562,12 +3562,16 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
// Process SetNextWindow***() calls
bool window_pos_set_by_api = false, window_size_set_by_api = false;
bool window_pos_center = false;
if (g.SetNextWindowPosCond)
{
const ImVec2 backup_cursor_pos = window->DC.CursorPos; // FIXME: not sure of the exact reason of this anymore :( need to look into that.
if (!window_was_visible) window->SetWindowPosAllowFlags |= ImGuiSetCond_Appearing;
window_pos_set_by_api = (window->SetWindowPosAllowFlags & g.SetNextWindowPosCond) != 0;
ImGui::SetWindowPos(g.SetNextWindowPosVal, g.SetNextWindowPosCond);
if (window_pos_set_by_api && ImLengthSqr(g.SetNextWindowPosVal - ImVec2(-FLT_MAX,-FLT_MAX)) < 0.001f)
window_pos_center = true;
else
ImGui::SetWindowPos(g.SetNextWindowPosVal, g.SetNextWindowPosCond);
window->DC.CursorPos = backup_cursor_pos;
g.SetNextWindowPosCond = 0;
}
@ -3735,7 +3739,15 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
}
// Position popup
if (flags & ImGuiWindowFlags_ChildMenu)
if ((flags & ImGuiWindowFlags_Modal) && !window_pos_set_by_api && window_appearing_after_being_hidden)
window_pos_center = true;
if (window_pos_center)
{
ImRect fullscreen_rect(GetVisibleRect());
SetWindowPos(ImMax(style.DisplaySafeAreaPadding, fullscreen_rect.GetCenter() - window->SizeFull * 0.5f));
}
else if (flags & ImGuiWindowFlags_ChildMenu)
{
IM_ASSERT(window_pos_set_by_api);
ImRect rect_to_avoid;
@ -3747,18 +3759,8 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
}
else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_appearing_after_being_hidden)
{
if (flags & ImGuiWindowFlags_Modal)
{
// Center
// FIXME: Should be widely available, e.g. via SetNextWindowPos() API etc.
ImRect fullscreen_rect(GetVisibleRect());
window->PosFloat = ImMax(style.DisplaySafeAreaPadding, fullscreen_rect.GetCenter() - window->SizeContents * 0.5f);
}
else
{
ImRect rect_to_avoid(window->PosFloat.x - 1, window->PosFloat.y - 1, window->PosFloat.x + 1, window->PosFloat.y + 1);
window->PosFloat = FindBestWindowPos(window->PosFloat, window->Size, flags, &window->AutoPosLastDirection, rect_to_avoid);
}
ImRect rect_to_avoid(window->PosFloat.x - 1, window->PosFloat.y - 1, window->PosFloat.x + 1, window->PosFloat.y + 1);
window->PosFloat = FindBestWindowPos(window->PosFloat, window->Size, flags, &window->AutoPosLastDirection, rect_to_avoid);
}
// Position tooltip (always follows mouse)
@ -4601,6 +4603,13 @@ void ImGui::SetNextWindowPos(const ImVec2& pos, ImGuiSetCond cond)
g.SetNextWindowPosCond = cond ? cond : ImGuiSetCond_Always;
}
void ImGui::SetNextWindowPosCenter(ImGuiSetCond cond)
{
ImGuiState& g = *GImGui;
g.SetNextWindowPosVal = ImVec2(-FLT_MAX, -FLT_MAX);
g.SetNextWindowPosCond = cond ? cond : ImGuiSetCond_Always;
}
void ImGui::SetNextWindowSize(const ImVec2& size, ImGuiSetCond cond)
{
ImGuiState& g = *GImGui;

9
imgui.h
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@ -122,10 +122,11 @@ namespace ImGui
IMGUI_API float GetWindowWidth();
IMGUI_API bool IsWindowCollapsed();
IMGUI_API void SetNextWindowPos(const ImVec2& pos, ImGuiSetCond cond = 0); // set next window position - call before Begin()
IMGUI_API void SetNextWindowSize(const ImVec2& size, ImGuiSetCond cond = 0); // set next window size. set to ImVec2(0,0) to force an auto-fit
IMGUI_API void SetNextWindowCollapsed(bool collapsed, ImGuiSetCond cond = 0); // set next window collapsed state
IMGUI_API void SetNextWindowFocus(); // set next window to be focused / front-most
IMGUI_API void SetNextWindowPos(const ImVec2& pos, ImGuiSetCond cond = 0); // set next window position. call before Begin()
IMGUI_API void SetNextWindowPosCenter(ImGuiSetCond cond = 0); // set next window position to be centered on screen. call before Begin()
IMGUI_API void SetNextWindowSize(const ImVec2& size, ImGuiSetCond cond = 0); // set next window size. set to ImVec2(0,0) to force an auto-fit. call before Begin()
IMGUI_API void SetNextWindowCollapsed(bool collapsed, ImGuiSetCond cond = 0); // set next window collapsed state. call before Begin()
IMGUI_API void SetNextWindowFocus(); // set next window to be focused / front-most. call before Begin()
IMGUI_API void SetWindowPos(const ImVec2& pos, ImGuiSetCond cond = 0); // set current window position - call within Begin()/End(). may incur tearing
IMGUI_API void SetWindowSize(const ImVec2& size, ImGuiSetCond cond = 0); // set current window size. set to ImVec2(0,0) to force an auto-fit. may incur tearing
IMGUI_API void SetWindowCollapsed(bool collapsed, ImGuiSetCond cond = 0); // set current window collapsed state

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