From 2e5352786ac8274cb48a8e85e8e983b7076319d1 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Sun, 13 Dec 2015 23:41:02 +0000
Subject: [PATCH] Bullet(), BulletText(): vertical and horizontal alignment
 fixes (namely for widget sized line height). (followup to #414, #282)

---
 imgui.cpp      | 25 +++++++++++++------------
 imgui_demo.cpp | 10 ++++++++++
 2 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/imgui.cpp b/imgui.cpp
index b009b54c..38e330e9 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -5583,7 +5583,7 @@ bool ImGui::CollapsingHeader(const char* label, const char* str_id, bool display
     const ImVec2 label_size = CalcTextSize(label, NULL, true);
 
     // We vertically grow up to current line height up the typical widget height.
-    const float text_base_offset_y = ImMax(0.0f, window->DC.CurrentLineTextBaseOffset - padding.y);
+    const float text_base_offset_y = ImMax(0.0f, window->DC.CurrentLineTextBaseOffset - padding.y); // Latch before ItemSize changes it
     const float frame_height = ImMax(ImMin(window->DC.CurrentLineHeight, g.FontSize + g.Style.FramePadding.y*2), label_size.y + padding.y*2);
     ImRect bb = ImRect(window->DC.CursorPos, ImVec2(window->Pos.x + GetContentRegionMax().x, window->DC.CursorPos.y + frame_height));
     if (display_frame)
@@ -5657,21 +5657,21 @@ void ImGui::Bullet()
 
     ImGuiState& g = *GImGui;
     const ImGuiStyle& style = g.Style;
-    const float line_height = g.FontSize;
-    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(line_height, line_height));
+    const float line_height = ImMax(ImMin(window->DC.CurrentLineHeight, g.FontSize + g.Style.FramePadding.y*2), g.FontSize);
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize, line_height));
     ItemSize(bb);
     if (!ItemAdd(bb, NULL))
     {
-        ImGui::SameLine(0, -1);
+        ImGui::SameLine(0, style.FramePadding.x*2);
         return;
     }
 
     // Render
-    const float bullet_size = line_height*0.15f;
-    window->DrawList->AddCircleFilled(bb.Min + ImVec2(style.FramePadding.x + line_height*0.5f, line_height*0.5f), bullet_size, GetColorU32(ImGuiCol_Text));
+    const float bullet_size = g.FontSize*0.15f;
+    window->DrawList->AddCircleFilled(bb.Min + ImVec2(style.FramePadding.x + g.FontSize*0.5f, line_height*0.5f), bullet_size, GetColorU32(ImGuiCol_Text));
 
     // Stay on same line
-    ImGui::SameLine(0, -1);
+    ImGui::SameLine(0, style.FramePadding.x*2);
 }
 
 // Text with a little bullet aligned to the typical tree node.
@@ -5686,17 +5686,18 @@ void ImGui::BulletTextV(const char* fmt, va_list args)
 
     const char* text_begin = g.TempBuffer;
     const char* text_end = text_begin + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args);
-    const float line_height = g.FontSize;
     const ImVec2 label_size = CalcTextSize(text_begin, text_end, true);
-    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(line_height + (label_size.x > 0.0f ? (style.FramePadding.x*2) : 0.0f),0) + label_size);  // Empty text doesn't add padding
+    const float text_base_offset_y = ImMax(0.0f, window->DC.CurrentLineTextBaseOffset); // Latch before ItemSize changes it
+    const float line_height = ImMax(ImMin(window->DC.CurrentLineHeight, g.FontSize + g.Style.FramePadding.y*2), g.FontSize);
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize + (label_size.x > 0.0f ? (label_size.x + style.FramePadding.x*2) : 0.0f), ImMax(line_height, label_size.y)));  // Empty text doesn't add padding
     ItemSize(bb);
     if (!ItemAdd(bb, NULL))
         return;
 
     // Render
-    const float bullet_size = line_height*0.15f;
-    window->DrawList->AddCircleFilled(bb.Min + ImVec2(style.FramePadding.x + line_height*0.5f, line_height*0.5f), bullet_size, GetColorU32(ImGuiCol_Text));
-    RenderText(bb.Min+ImVec2(g.FontSize + style.FramePadding.x*2,0), text_begin, text_end);
+    const float bullet_size = g.FontSize*0.15f;
+    window->DrawList->AddCircleFilled(bb.Min + ImVec2(style.FramePadding.x + g.FontSize*0.5f, line_height*0.5f), bullet_size, GetColorU32(ImGuiCol_Text));
+    RenderText(bb.Min+ImVec2(g.FontSize + style.FramePadding.x*2, text_base_offset_y), text_begin, text_end);
 }
 
 void ImGui::BulletText(const char* fmt, ...)
diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index 3e03c768..69d9ca21 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -991,6 +991,15 @@ void ImGui::ShowTestWindow(bool* p_opened)
             ImGui::SameLine(0.0f, spacing); ImGui::Button("Button##2");
             if (tree_opened) { for (int i = 0; i < 6; i++) ImGui::BulletText("Item %d..", i); ImGui::TreePop(); }   // Dummy tree data
 
+            // Bullet
+            ImGui::Button("Button##3"); 
+            ImGui::SameLine(0.0f, spacing); 
+            ImGui::BulletText("Bullet text");
+
+            ImGui::AlignFirstTextHeightToWidgets();
+            ImGui::BulletText("Node");
+            ImGui::SameLine(0.0f, spacing); ImGui::Button("Button##4");
+
             ImGui::TreePop();
         }
 
@@ -2261,6 +2270,7 @@ static void ShowExampleAppPropertyEditor(bool* opened)
                         //ImGui::Text("Field_%d", i);
                         char label[32];
                         sprintf(label, "Field_%d", i);
+                        ImGui::Bullet();
                         ImGui::Selectable(label);
                         ImGui::NextColumn();
                         ImGui::PushItemWidth(-1);