From 5084f90a0dc71bf903004f735203e008fa9bc380 Mon Sep 17 00:00:00 2001 From: ocornut Date: Sun, 13 Dec 2015 21:41:45 +0000 Subject: [PATCH] Added ProgressBar() (#333) --- imgui.cpp | 35 +++++++++++++++++++++++++++++++++++ imgui.h | 1 + imgui_demo.cpp | 33 +++++++++++++++++++++++++-------- 3 files changed, 61 insertions(+), 8 deletions(-) diff --git a/imgui.cpp b/imgui.cpp index bdb87c13..456f1daa 100644 --- a/imgui.cpp +++ b/imgui.cpp @@ -6777,6 +6777,41 @@ void ImGui::PlotHistogram(const char* label, float (*values_getter)(void* data, PlotEx(ImGuiPlotType_Histogram, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size); } +// size_arg (for each axis) < 0.0f: align to end, 0.0f: auto, > 0.0f: specified size +void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* overlay) +{ + ImGuiWindow* window = GetCurrentWindow(); + if (window->SkipItems) + return; + + ImGuiState& g = *GImGui; + const ImGuiStyle& style = g.Style; + + ImVec2 pos = window->DC.CursorPos; + const ImRect bb(pos, pos + CalcItemSize(size_arg, CalcItemWidth() + style.FramePadding.x*2.0f, g.FontSize + style.FramePadding.y*2.0f)); + ItemSize(bb, style.FramePadding.y); + if (!ItemAdd(bb, NULL)) + return; + + // Render + fraction = ImSaturate(fraction); + const ImVec2 fill_br = ImVec2(ImLerp(bb.Min.x, bb.Max.x, fraction), bb.Max.y); + RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding); + RenderFrame(bb.Min, fill_br, GetColorU32(ImGuiCol_PlotHistogram), false, style.FrameRounding); + + // Default displaying the fraction as percentage string, but user can override it + char overlay_buf[32]; + if (!overlay) + { + ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.0f%%", fraction*100+0.01f); + overlay = overlay_buf; + } + + ImVec2 overlay_size = CalcTextSize(overlay, NULL); + if (overlay_size.x > 0.0f) + RenderTextClipped(ImVec2(ImClamp(fill_br.x + style.ItemSpacing.x, bb.Min.x, bb.Max.x - overlay_size.x - style.ItemInnerSpacing.x), bb.Min.y), bb.Max, overlay, NULL, &overlay_size, ImGuiAlign_Left|ImGuiAlign_VCenter, &bb.Min, &bb.Max); +} + bool ImGui::Checkbox(const char* label, bool* v) { ImGuiWindow* window = GetCurrentWindow(); diff --git a/imgui.h b/imgui.h index 32c7d11a..cbe5b524 100644 --- a/imgui.h +++ b/imgui.h @@ -265,6 +265,7 @@ namespace ImGui IMGUI_API void PlotLines(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0,0)); IMGUI_API void PlotHistogram(const char* label, const float* values, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0,0), int stride = sizeof(float)); IMGUI_API void PlotHistogram(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0,0)); + IMGUI_API void ProgressBar(float fraction, const ImVec2& size_arg = ImVec2(-1,0), const char* overlay = NULL); // Widgets: Drags (tip: ctrl+click on a drag box to input text) IMGUI_API bool DragFloat(const char* label, float* v, float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* display_format = "%.3f", float power = 1.0f); // If v_min >= v_max we have no bound diff --git a/imgui_demo.cpp b/imgui_demo.cpp index bb1e6f22..a28a18d4 100644 --- a/imgui_demo.cpp +++ b/imgui_demo.cpp @@ -707,13 +707,15 @@ void ImGui::ShowTestWindow(bool* p_opened) if (ImGui::CollapsingHeader("Graphs widgets")) { + static bool animate = true; + ImGui::Checkbox("Animate", &animate); + static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f }; ImGui::PlotLines("Frame Times", arr, IM_ARRAYSIZE(arr)); - static bool pause; static ImVector values; if (values.empty()) { values.resize(90); memset(values.Data, 0, values.Size*sizeof(float)); } static int values_offset = 0; - if (!pause) + if (animate) { static float refresh_time = ImGui::GetTime(); // Create dummy data at fixed 60 hz rate for the demo for (; ImGui::GetTime() > refresh_time + 1.0f/60.0f; refresh_time += 1.0f/60.0f) @@ -724,12 +726,7 @@ void ImGui::ShowTestWindow(bool* p_opened) phase += 0.10f*values_offset; } } - ImGui::PlotLines("##Lines", values.Data, values.Size, values_offset, "avg 0.0", -1.0f, 1.0f, ImVec2(0,80)); - ImGui::SameLine(0, ImGui::GetStyle().ItemInnerSpacing.x); - ImGui::BeginGroup(); - ImGui::Text("Lines"); - ImGui::Checkbox("pause", &pause); - ImGui::EndGroup(); + ImGui::PlotLines("Lines", values.Data, values.Size, values_offset, "avg 0.0", -1.0f, 1.0f, ImVec2(0,80)); ImGui::PlotHistogram("Histogram", arr, IM_ARRAYSIZE(arr), 0, NULL, 0.0f, 1.0f, ImVec2(0,80)); // Use functions to generate output @@ -747,6 +744,26 @@ void ImGui::ShowTestWindow(bool* p_opened) float (*func)(void*, int) = (func_type == 0) ? Funcs::Sin : Funcs::Saw; ImGui::PlotLines("Lines", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0,80)); ImGui::PlotHistogram("Histogram", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0,80)); + ImGui::Separator(); + + // Animate a simple progress bar + static float progress = 0.0f, progress_dir = 1.0f; + if (animate) + { + progress += progress_dir * 0.4f * ImGui::GetIO().DeltaTime; + if (progress >= +1.1f) { progress = +1.1f; progress_dir *= -1.0f; } + 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. + ImGui::ProgressBar(progress, ImVec2(0.0f,0.0f)); + ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x); + ImGui::Text("Progress Bar"); + + float progress_saturated = (progress < 0.0f) ? 0.0f : (progress > 1.0f) ? 1.0f : progress; + char buf[32]; + sprintf(buf, "%d/%d", (int)(progress_saturated*1753), 1753); + ImGui::ProgressBar(progress, ImVec2(0.f,0.f), buf); } if (ImGui::CollapsingHeader("Layout"))