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Image: removed 'tint_col', 'border_col' parameters from Image(). Added ImageWithBg(). Added style.ImageBorderSize, ImGuiStyleVar_ImageBorderSize. (#8131, #8238)

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Displaying a black background behind Font Atlas texture.
This commit is contained in:
ocornut
2025-02-27 19:28:01 +01:00
parent cdafefd4be
commit 494ea57b65
6 changed files with 74 additions and 20 deletions
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imgui_demo.cpp
+5 -6
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@@ -1348,15 +1348,12 @@ static void ShowDemoWindowWidgets(ImGuiDemoWindowData* demo_data)
float my_tex_w = (float)io.Fonts->TexWidth;
float my_tex_h = (float)io.Fonts->TexHeight;
{
static bool use_text_color_for_tint = false;
ImGui::Checkbox("Use Text Color for Tint", &use_text_color_for_tint);
ImGui::Text("%.0fx%.0f", my_tex_w, my_tex_h);
ImVec2 pos = ImGui::GetCursorScreenPos();
ImVec2 uv_min = ImVec2(0.0f, 0.0f); // Top-left
ImVec2 uv_max = ImVec2(1.0f, 1.0f); // Lower-right
ImVec4 tint_col = use_text_color_for_tint ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : ImVec4(1.0f, 1.0f, 1.0f, 1.0f); // No tint
ImVec4 border_col = ImGui::GetStyleColorVec4(ImGuiCol_Border);
ImGui::Image(my_tex_id, ImVec2(my_tex_w, my_tex_h), uv_min, uv_max, tint_col, border_col);
ImGui::PushStyleVar(ImGuiStyleVar_ImageBorderSize, IM_MAX(1.0f, ImGui::GetStyle().ImageBorderSize));
ImGui::ImageWithBg(my_tex_id, ImVec2(my_tex_w, my_tex_h), uv_min, uv_max, ImVec4(0.0f, 0.0f, 0.0f, 1.0f));
if (ImGui::BeginItemTooltip())
{
float region_sz = 32.0f;
@@ -1371,9 +1368,10 @@ static void ShowDemoWindowWidgets(ImGuiDemoWindowData* demo_data)
ImGui::Text("Max: (%.2f, %.2f)", region_x + region_sz, region_y + region_sz);
ImVec2 uv0 = ImVec2((region_x) / my_tex_w, (region_y) / my_tex_h);
ImVec2 uv1 = ImVec2((region_x + region_sz) / my_tex_w, (region_y + region_sz) / my_tex_h);
ImGui::Image(my_tex_id, ImVec2(region_sz * zoom, region_sz * zoom), uv0, uv1, tint_col, border_col);
ImGui::ImageWithBg(my_tex_id, ImVec2(region_sz * zoom, region_sz * zoom), uv0, uv1, ImVec4(0.0f, 0.0f, 0.0f, 1.0f));
ImGui::EndTooltip();
}
ImGui::PopStyleVar();
}
IMGUI_DEMO_MARKER("Widgets/Images/Textured buttons");
@@ -8031,6 +8029,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
ImGui::SliderFloat2("SeparatorTextAlign", (float*)&style.SeparatorTextAlign, 0.0f, 1.0f, "%.2f");
ImGui::SliderFloat2("SeparatorTextPadding", (float*)&style.SeparatorTextPadding, 0.0f, 40.0f, "%.0f");
ImGui::SliderFloat("LogSliderDeadzone", &style.LogSliderDeadzone, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("ImageBorderSize", &style.ImageBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SeparatorText("Tooltips");
for (int n = 0; n < 2; n++)