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Demo: amend "Font Size" demo. (#8738)

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ocornut 2025-06-27 16:54:16 +02:00
parent 9fbe560218
commit 0fe5166531
1 changed files with 28 additions and 20 deletions
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48
imgui_demo.cpp
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@ -3548,32 +3548,40 @@ static void DemoWindowWidgetsText()
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text/Different Size Text");
if (ImGui::TreeNode("Different Size Text"))
IMGUI_DEMO_MARKER("Widgets/Text/Font Size");
if (ImGui::TreeNode("Font Size"))
{
const ImGuiStyle& style = ImGui::GetStyle();
ImGuiStyle& style = ImGui::GetStyle();
const float global_scale = style.FontScaleMain * style.FontScaleDpi;
ImGui::Text("style.FontScaleMain = %0.2f", style.FontScaleMain);
ImGui::Text("style.FontScaleDpi = %0.2f", style.FontScaleDpi);
ImGui::Text("global_scale = ~%0.2f", global_scale); // This is not technically accurate as internal scales may apply, but conceptually let's pretend it is.
ImGui::Text("FontSize = %0.2f", ImGui::GetFontSize());
for (float scaling = 0.5f; scaling < 4.01f; scaling += 0.5f)
ImGui::SeparatorText("");
static float custom_size = 16.0f;
ImGui::SliderFloat("custom_size", &custom_size, 10.0f, 100.0f, "%.0f");
ImGui::Text("ImGui::PushFont(nullptr, custom_size);");
ImGui::PushFont(NULL, custom_size);
ImGui::Text("FontSize = %.2f (== %.2f * global_scale)", ImGui::GetFontSize(), custom_size);
ImGui::PopFont();
ImGui::SeparatorText("");
static float custom_scale = 1.0f;
ImGui::SliderFloat("custom_scale", &custom_scale, 0.5f, 4.0f, "%.2f");
ImGui::Text("ImGui::PushFont(nullptr, style.FontSizeBase * custom_scale);");
ImGui::PushFont(NULL, style.FontSizeBase * custom_scale);
ImGui::Text("FontSize = %.2f (== style.FontSizeBase * %.2f * global_scale)", ImGui::GetFontSize(), custom_scale);
ImGui::PopFont();
ImGui::SeparatorText("");
for (float scaling = 0.5f; scaling <= 4.0f; scaling += 0.5f)
{
ImGui::PushFont(nullptr, style.FontSizeBase * scaling);
ImGui::Text("Text size is %.1f (style.FontSizeBase * %.1f)", style.FontSizeBase * scaling, scaling);
ImGui::PushFont(NULL, style.FontSizeBase * scaling);
ImGui::Text("FontSize = %.2f (== style.FontSizeBase * %.2f * global_scale)", ImGui::GetFontSize(), scaling);
ImGui::PopFont();
}
static float custom_scaling{ 1.0f };
ImGui::SliderFloat("Custom Scaling##Different Size Text", &custom_scaling, 0.5f, 4.0f, "%.1f");
ImGui::SameLine(); HelpMarker("ImGui::PushFont(nullptr, style.FontSizeBase * custom_scaling);");
ImGui::PushFont(nullptr, style.FontSizeBase * custom_scaling);
ImGui::Text("Text size is %.1f (style.FontSizeBase * %.1f)", style.FontSizeBase * custom_scaling, custom_scaling);
ImGui::PopFont();
static float custom_font_size{ 16.0f };
ImGui::SliderFloat("Custom Font Size##Different Size Text", &custom_font_size, 10.0f, 100.0f, "%.1f");
ImGui::SameLine(); HelpMarker("ImGui::PushFont(nullptr, custom_font_size);");
ImGui::PushFont(nullptr, custom_font_size);
ImGui::Text("Text size is %.1f", custom_font_size);
ImGui::PopFont();
ImGui::TreePop();
}