Demo: Using ImVec2(-FLT_MIN,0.0f) instead of ImVec2(-1.0f,0.0f) where it makes sense. (#2449)

imgui_demo.cpp

@@ -968,7 +968,7 @@ static void ShowDemoWindowWidgets()
             ImGui::CheckboxFlags("ImGuiInputTextFlags_ReadOnly", (unsigned int*)&flags, ImGuiInputTextFlags_ReadOnly);
             ImGui::CheckboxFlags("ImGuiInputTextFlags_AllowTabInput", (unsigned int*)&flags, ImGuiInputTextFlags_AllowTabInput);
             ImGui::CheckboxFlags("ImGuiInputTextFlags_CtrlEnterForNewLine", (unsigned int*)&flags, ImGuiInputTextFlags_CtrlEnterForNewLine);
-            ImGui::InputTextMultiline("##source", text, IM_ARRAYSIZE(text), ImVec2(-1.0f, ImGui::GetTextLineHeight() * 16), flags);
+            ImGui::InputTextMultiline("##source", text, IM_ARRAYSIZE(text), ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() * 16), flags);
             ImGui::TreePop();
         }
 
@@ -1024,7 +1024,7 @@ static void ShowDemoWindowWidgets()
             static ImVector<char> my_str;
             if (my_str.empty())
                 my_str.push_back(0);
-            Funcs::MyInputTextMultiline("##MyStr", &my_str, ImVec2(-1.0f, ImGui::GetTextLineHeight() * 16));
+            Funcs::MyInputTextMultiline("##MyStr", &my_str, ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() * 16));
             ImGui::Text("Data: %p\nSize: %d\nCapacity: %d", (void*)my_str.begin(), my_str.size(), my_str.capacity());
             ImGui::TreePop();
         }
@@ -1085,7 +1085,8 @@ static void ShowDemoWindowWidgets()
             if (progress <= -0.1f) { progress = -0.1f; progress_dir *= -1.0f; }
         }
 
-        // Typically we would use ImVec2(-1.0f,0.0f) to use all available width, or ImVec2(width,0.0f) for a specified width. ImVec2(0.0f,0.0f) uses ItemWidth.
+        // Typically we would use ImVec2(-1.0f,0.0f) or ImVec2(-FLT_MIN,0.0f) to use all available width, 
+        // or ImVec2(width,0.0f) for a specified width. ImVec2(0.0f,0.0f) uses ItemWidth.
         ImGui::ProgressBar(progress, ImVec2(0.0f,0.0f));
         ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
         ImGui::Text("Progress Bar");
@@ -1727,7 +1728,7 @@ static void ShowDemoWindowLayout()
             {
                 char buf[32];
                 sprintf(buf, "%03d", i);
-                ImGui::Button(buf, ImVec2(-1.0f, 0.0f));
+                ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
                 ImGui::NextColumn();
             }
             ImGui::EndChild();
@@ -2519,7 +2520,7 @@ static void ShowDemoWindowColumns()
             char label[32];
             sprintf(label, "Item %d", n);
             if (ImGui::Selectable(label)) {}
-            //if (ImGui::Button(label, ImVec2(-1,0))) {}
+            //if (ImGui::Button(label, ImVec2(-FLT_MIN,0.0f))) {}
             ImGui::NextColumn();
         }
         ImGui::Columns(1);
@@ -2570,7 +2571,7 @@ static void ShowDemoWindowColumns()
             ImGui::Text("Width %.2f", ImGui::GetColumnWidth());
             ImGui::Text("Offset %.2f", ImGui::GetColumnOffset());
             ImGui::Text("Long text that is likely to clip");
-            ImGui::Button("Button", ImVec2(-1.0f, 0.0f));
+            ImGui::Button("Button", ImVec2(-FLT_MIN, 0.0f));
             ImGui::NextColumn();
         }
         ImGui::Columns(1);