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adding slider size and contrast (rebased 2026/03/09)

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# Conflicts:
#	imgui.cpp
#	imgui.h
#	imgui_demo.cpp
#	imgui_widgets.cpp
This commit is contained in:
Micon Frink 2020-11-17 10:19:03 +00:00 • committed by ocornut
parent 512982d0d2
commit 8f9f8d437c
4 changed files with 50 additions and 10 deletions
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4
imgui.cpp
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@ -1486,6 +1486,8 @@ ImGuiStyle::ImGuiStyle()
ScrollbarPadding = 2.0f; // Padding of scrollbar grab within its frame (same for both axes)
GrabMinSize = 12.0f; // Minimum width/height of a grab box for slider/scrollbar
GrabRounding = 0.0f; // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
SliderThickness = 1.0f; // Thickness of sliders. Can be set between 0.0f (rectangle width is null) and 1.0f (full rectangle is drawn).
SliderContrast = 0.5f; // Contrast between the left and right sides of the slider track.
LogSliderDeadzone = 4.0f; // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
ImageRounding = 0.0f; // Rounding of Image() calls.
ImageBorderSize = 0.0f; // Thickness of border around tabs.
@ -3634,6 +3636,8 @@ static const ImGuiStyleVarInfo GStyleVarsInfo[] =
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, ScrollbarPadding) }, // ImGuiStyleVar_ScrollbarPadding
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, GrabMinSize) }, // ImGuiStyleVar_GrabMinSize
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, GrabRounding) }, // ImGuiStyleVar_GrabRounding
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, SliderThickness) }, // ImGuiStyleVar_SliderThickness
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, SliderContrast) }, // ImGuiStyleVar_SliderContrast
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, ImageRounding) }, // ImGuiStyleVar_ImageRounding
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, ImageBorderSize) }, // ImGuiStyleVar_ImageBorderSize
{ 1, ImGuiDataType_Float, (ImU32)offsetof(ImGuiStyle, TabRounding) }, // ImGuiStyleVar_TabRounding

4
imgui.h
View file

@ -1836,6 +1836,8 @@ enum ImGuiStyleVar_
ImGuiStyleVar_ScrollbarSize, // float ScrollbarSize
ImGuiStyleVar_ScrollbarRounding, // float ScrollbarRounding
ImGuiStyleVar_ScrollbarPadding, // float ScrollbarPadding
ImGuiStyleVar_SliderThickness, // float SliderThickness
ImGuiStyleVar_SliderContrast, // float SliderContrast
ImGuiStyleVar_GrabMinSize, // float GrabMinSize
ImGuiStyleVar_GrabRounding, // float GrabRounding
ImGuiStyleVar_ImageRounding, // float ImageRounding
@ -2309,6 +2311,8 @@ struct ImGuiStyle
float ScrollbarPadding; // Padding of scrollbar grab within its frame (same for both axes).
float GrabMinSize; // Minimum width/height of a grab box for slider/scrollbar.
float GrabRounding; // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
float SliderThickness; // Thickness of sliders. Can be set between 0.0f (rectangle width is null) and 1.0f (full rectangle is drawn),
float SliderContrast; // Contrast between the left and right sides of the slider track.
float LogSliderDeadzone; // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
float ImageRounding; // Rounding of Image() calls.
float ImageBorderSize; // Thickness of border around Image() calls.

14
imgui_demo.cpp
View file

@ -4238,6 +4238,10 @@ static void DemoWindowWidgetsVerticalSliders()
const float spacing = 4;
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(spacing, spacing));
static float sliderThickness = 0.25f;
ImGui::SliderFloat("Slider Thickness", &sliderThickness, 0.0f, 1.0f, "%.2f");
ImGui::PushStyleVar(ImGuiStyleVar_SliderThickness, sliderThickness);
static int int_value = 0;
ImGui::VSliderInt("##int", ImVec2(18, 160), &int_value, 0, 5);
ImGui::SameLine();
@ -4251,11 +4255,12 @@ static void DemoWindowWidgetsVerticalSliders()
ImGui::PushStyleColor(ImGuiCol_FrameBg, (ImVec4)ImColor::HSV(i / 7.0f, 0.5f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, (ImVec4)ImColor::HSV(i / 7.0f, 0.6f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgActive, (ImVec4)ImColor::HSV(i / 7.0f, 0.7f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_SliderGrab, (ImVec4)ImColor::HSV(i / 7.0f, 0.9f, 0.9f));
ImGui::PushStyleColor(ImGuiCol_SliderGrab, (ImVec4)ImColor::HSV(i / 7.0f, 0.8f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_SliderGrabActive, (ImVec4)ImColor::HSV(i / 7.0f,0.9f, 0.9f));
ImGui::VSliderFloat("##v", ImVec2(18, 160), &values[i], 0.0f, 1.0f, "");
if (ImGui::IsItemActive() || ImGui::IsItemHovered())
ImGui::SetTooltip("%.3f", values[i]);
ImGui::PopStyleColor(4);
ImGui::PopStyleColor(5);
ImGui::PopID();
}
ImGui::PopID();
@ -4293,7 +4298,7 @@ static void DemoWindowWidgetsVerticalSliders()
ImGui::PopID();
}
ImGui::PopID();
ImGui::PopStyleVar();
ImGui::PopStyleVar(2);
ImGui::TreePop();
}
}
@ -8496,6 +8501,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
SeparatorText("Windows");
SliderFloat2("WindowTitleAlign", (float*)&style.WindowTitleAlign, 0.0f, 1.0f, "%.2f");
SliderFloat("WindowBorderHoverPadding", &style.WindowBorderHoverPadding, 1.0f, 20.0f, "%.0f");
int window_menu_button_position = style.WindowMenuButtonPosition + 1;
if (Combo("WindowMenuButtonPosition", (int*)&window_menu_button_position, "None\0Left\0Right\0"))
style.WindowMenuButtonPosition = (ImGuiDir)(window_menu_button_position - 1);
@ -8511,6 +8517,8 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
SliderFloat("SeparatorTextBorderSize", &style.SeparatorTextBorderSize, 0.0f, 10.0f, "%.0f");
SliderFloat2("SeparatorTextAlign", (float*)&style.SeparatorTextAlign, 0.0f, 1.0f, "%.2f");
SliderFloat2("SeparatorTextPadding", (float*)&style.SeparatorTextPadding, 0.0f, 40.0f, "%.0f");
SliderFloat("SliderThickness", &style.SliderThickness, 0.0f, 1.0f, "%.2f");
SliderFloat("SliderContrast", &style.SliderContrast, -1.0f, 1.0f, "%.2f");
SliderFloat("LogSliderDeadzone", &style.LogSliderDeadzone, 0.0f, 12.0f, "%.0f");
SliderFloat("ImageRounding", &style.ImageRounding, 0.0f, 12.0f, "%.0f");
SliderFloat("ImageBorderSize", &style.ImageBorderSize, 0.0f, max_border_size, "%.0f");

38
imgui_widgets.cpp
View file

@ -3349,12 +3349,9 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_dat
}
// Draw frame
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg, 1.0f + g.Style.SliderContrast);
const ImU32 frame_col_after = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg, 1.0f - g.Style.SliderContrast);
RenderNavCursor(frame_bb, id);
RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, false, style.FrameRounding);
if (color_marker != 0 && style.ColorMarkerSize > 0.0f)
RenderColorComponentMarker(frame_bb, GetColorU32(color_marker), style.FrameRounding);
RenderFrameBorder(frame_bb.Min, frame_bb.Max, g.Style.FrameRounding);
// Slider behavior
ImRect grab_bb;
@ -3362,6 +3359,21 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_dat
if (value_changed)
MarkItemEdited(id);
// Render track
ImRect draw_bb = frame_bb;
if (g.Style.SliderThickness != 1.0f)
{
float shrink_amount = (float)(int)((frame_bb.Max.y - frame_bb.Min.y) * 0.5f * (1.0f - g.Style.SliderThickness));
draw_bb.Min.y += shrink_amount;
draw_bb.Max.y -= shrink_amount;
}
window->DrawList->AddRectFilled(draw_bb.Min, ImVec2(grab_bb.Min.x + (grab_bb.Max.x - grab_bb.Min.x) * 0.65f, draw_bb.Max.y), frame_col, style.FrameRounding, ImDrawFlags_RoundCornersLeft);
window->DrawList->AddRectFilled(ImVec2(grab_bb.Max.x - (grab_bb.Max.x - grab_bb.Min.x) * 0.35f, draw_bb.Min.y), draw_bb.Max, frame_col_after, style.FrameRounding, ImDrawFlags_RoundCornersRight);
//RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, false, style.FrameRounding);
if (color_marker != 0 && style.ColorMarkerSize > 0.0f)
RenderColorComponentMarker(draw_bb, GetColorU32(color_marker), style.FrameRounding);
//RenderFrameBorder(frame_bb.Min, frame_bb.Max, g.Style.FrameRounding);
// Render grab
if (grab_bb.Max.x > grab_bb.Min.x)
window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
@ -3504,9 +3516,9 @@ bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType d
}
// Draw frame
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg, 1.0f + g.Style.SliderContrast);
const ImU32 frame_col_after = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg, 1.0f - g.Style.SliderContrast);
RenderNavCursor(frame_bb, id);
RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
// Slider behavior
ImRect grab_bb;
@ -3514,6 +3526,18 @@ bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType d
if (value_changed)
MarkItemEdited(id);
// Render track
ImRect draw_bb = frame_bb;
if (g.Style.SliderThickness != 1.0f)
{
float shrink_amount = (float)(int)((frame_bb.Max.x - frame_bb.Min.x) * 0.5f * (1.0f - g.Style.SliderThickness));
draw_bb.Min.x += shrink_amount;
draw_bb.Max.x -= shrink_amount;
}
//RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
window->DrawList->AddRectFilled(ImVec2(draw_bb.Min.x, grab_bb.Max.y - (grab_bb.Max.y - grab_bb.Min.y) * 0.65f), draw_bb.Max, frame_col, style.FrameRounding, ImDrawFlags_RoundCornersBottom);
window->DrawList->AddRectFilled(draw_bb.Min, ImVec2(draw_bb.Max.x, grab_bb.Min.y + (grab_bb.Max.y - grab_bb.Min.y) * 0.35f), frame_col_after, style.FrameRounding, ImDrawFlags_RoundCornersTop);
// Render grab
if (grab_bb.Max.y > grab_bb.Min.y)
window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);