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TreeNode: Added ImGuiTreeNodeFlags_SpanAvailWidth and ImGuiTreeNodeFlags_SpanFullWidth flags (#2451, #2438, #1897)

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Added demo bits.
This commit is contained in:
omar
2019-09-18 17:13:41 +02:00
parent 74e01e62ce
commit 9d02ed51e3
4 changed files with 40 additions and 22 deletions
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36
imgui_widgets.cpp
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@ -5177,29 +5177,36 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
const ImVec2 label_size = CalcTextSize(label, label_end, false);
// We vertically grow up to current line height up the typical widget height.
const float text_base_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset); // Latch before ItemSize changes it
const float frame_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y*2), label_size.y + padding.y*2);
ImRect frame_bb = ImRect(window->DC.CursorPos, ImVec2(window->WorkRect.Max.x, window->DC.CursorPos.y + frame_height));
ImRect frame_bb;
frame_bb.Min.x = (flags & ImGuiTreeNodeFlags_SpanFullWidth) ? window->WorkRect.Min.x : window->DC.CursorPos.x;
frame_bb.Min.y = window->DC.CursorPos.y;
frame_bb.Max.x = window->WorkRect.Max.x;
frame_bb.Max.y = window->DC.CursorPos.y + frame_height;
if (display_frame)
{
// Framed header expand a little outside the default padding
// Framed header expand a little outside the default padding, to the edge of InnerClipRect
// (FIXME: May remove this at some point and make InnerClipRect align with WindowPadding.x instead of WindowPadding.x*0.5f)
frame_bb.Min.x -= (float)(int)(window->WindowPadding.x * 0.5f - 1.0f);
frame_bb.Max.x += (float)(int)(window->WindowPadding.x * 0.5f);
}
const float text_offset_x = (g.FontSize + (display_frame ? padding.x*3 : padding.x*2)); // Collapser arrow width + Spacing
const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x*2 : 0.0f); // Include collapser
ItemSize(ImVec2(text_width, frame_height), text_base_offset_y);
const float text_offset_x = g.FontSize + (display_frame ? padding.x*3 : padding.x*2); // Collapser arrow width + Spacing
const float text_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset); // Latch before ItemSize changes it
const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x*2 : 0.0f); // Include collapser
const ImVec2 text_pos(window->DC.CursorPos.x + text_offset_x, window->DC.CursorPos.y + text_offset_y);
ItemSize(ImVec2(text_width, frame_height), text_offset_y);
// For regular tree nodes, we arbitrary allow to click past 2 worth of ItemSpacing
// (Ideally we'd want to add a flag for the user to specify if we want the hit test to be done up to the right side of the content or not)
const ImRect interact_bb = display_frame ? frame_bb : ImRect(frame_bb.Min.x, frame_bb.Min.y, frame_bb.Min.x + text_width + style.ItemSpacing.x*2, frame_bb.Max.y);
bool is_open = TreeNodeBehaviorIsOpen(id, flags);
bool is_leaf = (flags & ImGuiTreeNodeFlags_Leaf) != 0;
ImRect interact_bb = frame_bb;
if (!display_frame && (flags & (ImGuiTreeNodeFlags_SpanAvailWidth | ImGuiTreeNodeFlags_SpanFullWidth)) == 0)
interact_bb.Max.x = frame_bb.Min.x + text_width + style.ItemSpacing.x * 2.0f;
// Store a flag for the current depth to tell if we will allow closing this node when navigating one of its child.
// For this purpose we essentially compare if g.NavIdIsAlive went from 0 to 1 between TreeNode() and TreePop().
// This is currently only support 32 level deep and we are fine with (1 << Depth) overflowing into a zero.
const bool is_leaf = (flags & ImGuiTreeNodeFlags_Leaf) != 0;
bool is_open = TreeNodeBehaviorIsOpen(id, flags);
if (is_open && !g.NavIdIsAlive && (flags & ImGuiTreeNodeFlags_NavLeftJumpsBackHere) && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
window->DC.TreeStoreMayJumpToParentOnPop |= (1 << window->DC.TreeDepth);
@ -5273,7 +5280,6 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
// Render
const ImU32 text_col = GetColorU32(ImGuiCol_Text);
const ImVec2 text_pos = frame_bb.Min + ImVec2(text_offset_x, text_base_offset_y);
ImGuiNavHighlightFlags nav_highlight_flags = ImGuiNavHighlightFlags_TypeThin;
if (display_frame)
{
@ -5281,7 +5287,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, true, style.FrameRounding);
RenderNavHighlight(frame_bb, id, nav_highlight_flags);
RenderArrow(window->DrawList, frame_bb.Min + ImVec2(padding.x, text_base_offset_y), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 1.0f);
RenderArrow(window->DrawList, ImVec2(text_pos.x - text_offset_x + padding.x, text_pos.y), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 1.0f);
if (flags & ImGuiTreeNodeFlags_ClipLabelForTrailingButton)
frame_bb.Max.x -= g.FontSize + style.FramePadding.x;
if (g.LogEnabled)
@ -5309,9 +5315,9 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
}
if (flags & ImGuiTreeNodeFlags_Bullet)
RenderBullet(window->DrawList, frame_bb.Min + ImVec2(text_offset_x * 0.5f, g.FontSize*0.50f + text_base_offset_y), text_col);
RenderBullet(window->DrawList, ImVec2(text_pos.x - text_offset_x * 0.5f, text_pos.y + g.FontSize*0.50f), text_col);
else if (!is_leaf)
RenderArrow(window->DrawList, frame_bb.Min + ImVec2(padding.x, g.FontSize*0.15f + text_base_offset_y), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 0.70f);
RenderArrow(window->DrawList, ImVec2(text_pos.x - text_offset_x + padding.x, text_pos.y + g.FontSize*0.15f), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 0.70f);
if (g.LogEnabled)
LogRenderedText(&text_pos, ">");
RenderText(text_pos, label, label_end, false);