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Added io.ConfigWindowsMoveFromTitleBarOnly option. Still is ignored by window with no title bars (often popups). This affects clamping window within the visible area: with this option enabled title bars need to be visible. (#899)

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Tweaked default value of style.DisplayWindowPadding from (20,20) to (19,19) so the default style as a value which is the same as the title bar height.
This commit is contained in:
omar
2018-12-10 16:05:30 +01:00
parent 59f3c4fc20
commit 9476e07d5a
4 changed files with 22 additions and 4 deletions
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15
imgui.cpp
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@ -1016,7 +1016,7 @@ ImGuiStyle::ImGuiStyle()
GrabMinSize = 10.0f; // Minimum width/height of a grab box for slider/scrollbar
GrabRounding = 0.0f; // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
ButtonTextAlign = ImVec2(0.5f,0.5f);// Alignment of button text when button is larger than text.
DisplayWindowPadding = ImVec2(20,20); // Window position are clamped to be visible within the display area by at least this amount. Only applies to regular windows.
DisplayWindowPadding = ImVec2(19,19); // Window position are clamped to be visible within the display area by at least this amount. Only applies to regular windows.
DisplaySafeAreaPadding = ImVec2(3,3); // If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding. Covers popups/tooltips as well regular windows.
MouseCursorScale = 1.0f; // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
AntiAliasedLines = true; // Enable anti-aliasing on lines/borders. Disable if you are really short on CPU/GPU.
@ -1088,6 +1088,7 @@ ImGuiIO::ImGuiIO()
#endif
ConfigInputTextCursorBlink = true;
ConfigWindowsResizeFromEdges = true;
ConfigWindowsMoveFromTitleBarOnly = false;
// Platform Functions
BackendPlatformName = BackendRendererName = NULL;
@ -2906,6 +2907,8 @@ ImDrawListSharedData* ImGui::GetDrawListSharedData()
void ImGui::StartMouseMovingWindow(ImGuiWindow* window)
{
// Set ActiveId even if the _NoMove flag is set. Without it, dragging away from a window with _NoMove would activate hover on other windows.
// We _also_ call this when clicking in a window empty space when io.ConfigWindowsMoveFromTitleBarOnly is set, but clear g.MovingWindow afterward.
// This is because we want ActiveId to be set even when the window is stuck from moving.
ImGuiContext& g = *GImGui;
FocusWindow(window);
SetActiveID(window->MoveId, window);
@ -3571,9 +3574,16 @@ void ImGui::EndFrame()
if (g.IO.MouseClicked[0])
{
if (g.HoveredRootWindow != NULL)
{
StartMouseMovingWindow(g.HoveredWindow);
if (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(g.HoveredRootWindow->Flags & ImGuiWindowFlags_NoTitleBar))
if (!g.HoveredRootWindow->TitleBarRect().Contains(g.IO.MouseClickedPos[0]))
g.MovingWindow = NULL;
}
else if (g.NavWindow != NULL && GetFrontMostPopupModal() == NULL)
{
FocusWindow(NULL); // Clicking on void disable focus
}
}
// With right mouse button we close popups without changing focus
@ -4832,7 +4842,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
if (!window_pos_set_by_api && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && g.IO.DisplaySize.x > 0.0f && g.IO.DisplaySize.y > 0.0f) // Ignore zero-sized display explicitly to avoid losing positions if a window manager reports zero-sized window when initializing or minimizing.
{
ImVec2 padding = ImMax(style.DisplayWindowPadding, style.DisplaySafeAreaPadding);
window->Pos = ImMax(window->Pos + window->Size, padding) - window->Size;
ImVec2 size_for_clamping = ((g.IO.ConfigWindowsMoveFromTitleBarOnly) && !(window->Flags & ImGuiWindowFlags_NoTitleBar)) ? ImVec2(window->Size.x, window->TitleBarHeight()) : window->Size;
window->Pos = ImMax(window->Pos + size_for_clamping, padding) - size_for_clamping;
window->Pos = ImMin(window->Pos, g.IO.DisplaySize - padding);
}
}