Drags, Sliders: Logarithmic: WIP demo code (will rework)
diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index 6771367..6025b79 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -218,6 +218,148 @@
static void ShowDemoWindowColumns();
static void ShowDemoWindowMisc();
+static void TestLogarithmicDragSliders()
+{
+ // Tests for logarithmic sliders
+ ImGui::Begin("Slider tests");
+
+ static float v = 0.0f;
+ ImGui::DragFloat("Drag RoundToFormat=1", &v, 0.001f, .00001f, 1.0f, "%.3f", ImGuiDragFlags_Logarithmic);
+ ImGui::DragFloat("Drag RoundToFormat=0", &v, 0.001f, .00001f, 1.0f, "%.3f", ImGuiDragFlags_Logarithmic | ImGuiDragFlags_NoRoundToFormat);
+ ImGui::SliderFloat("Slider RoundToFormat=1", &v, .00001f, 1.0f, "%.3f", ImGuiSliderFlags_Logarithmic);
+ ImGui::SliderFloat("Slider RoundToFormat=0", &v, .00001f, 1.0f, "%.3f", ImGuiSliderFlags_Logarithmic | ImGuiSliderFlags_NoRoundToFormat);
+
+ for (int pass = 0; pass < 2; pass++)
+ {
+ ImGui::PushID(pass);
+
+ ImGuiSliderFlags slider_flags = (pass == 1) ? ImGuiSliderFlags_Logarithmic : ImGuiSliderFlags_None;
+ ImGuiDragFlags drag_flags = (pass == 1) ? ImGuiDragFlags_Logarithmic : ImGuiDragFlags_None;
+
+ ImGui::Columns(2);
+ ImGui::Text((pass == 0) ? "Normal Slider" : "Log Slider");
+ ImGui::NextColumn();
+ ImGui::Text((pass == 0) ? "Normal Drag" : "Log Drag");
+ ImGui::NextColumn();
+
+
+ {
+ // FIXME: With io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard, we cannot step out of small Logarithmic Slider values.
+ // Maybe Slider could accumulate changes until they take effect (with rounding) and then subtract from the accumulator? (this is what Drag already does)
+
+ static float val = 0.001f;
+ ImGui::SliderFloat("Normal", &val, 0.001f, 100.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Normal drag", &val, 1.0f, 0.001f, 100.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Normal from zero", &val, 0.0f, 100.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Normal from zero drag", &val, 1.0f, 0.0f, 100.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Negative from zero", &val, -100.0f, 0.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Negative from zero drag", &val, 1.0f, -100.0f, 0.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Negative to positive", &val, -100.0f, 100.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Negative to positive drag", &val, 1.0f, -100.0f, 100.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Negative to positive offset", &val, -10.0f, 100.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Negative to positive offset drag", &val, 1.0f, -10.0f, 100.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Normal from zero reverse", &val, 100.0f, 0.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ // FIXME: Negative drag doesn't work. Should at least remove `bool is_locked` in DragBehaviorT() but that's not enough.
+ ImGui::DragFloat("Normal from zero reverse drag", &val, 1.0f, 100.0f, 0.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Negative to positive reverse", &val, 100.0f, -100.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ // FIXME: Negative drag doesn't work. Should at least remove `bool is_locked` in DragBehaviorT() but that's not enough.
+ ImGui::DragFloat("Negative to positive reverse drag", &val, 1.0f, 100.0f, -100.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0f;
+ ImGui::SliderFloat("Huge from zero", &val, 0.0f, 1000000.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Huge from zero drag", &val, 10000.0f, 0.0f, 1000000.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ // FIXME: Doesn't work with e.g. FLT_MAX/1000.0f. Maybe that's fine but would be nice to clearly define (assert?) on known limits with Logarithmic flag.
+ static float val = 0.0f;
+ ImGui::SliderFloat("Huge negative to positive", &val, -1000000.0f, 1000000.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Huge negative to positive drag", &val, 10000.0f, -1000000.0f, 1000000.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0001f;
+ ImGui::SliderFloat("Tiny", &val, 0.0001f, 0.0004f, "%.8f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Tiny drag", &val, 0.00001f, 0.0001f, 0.0004f, "%.8f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 0.0001f;
+ ImGui::SliderFloat("Tiny 2", &val, 0.0001f, 0.01f, "%.8f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Tiny 2 drag", &val, 0.00001f, 0.0001f, 0.01f, "%.8f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 10000.0f;
+ ImGui::SliderFloat("Offset", &val, 10000.0f, 10001.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Offset drag", &val, 0.001f, 10000.0f, 10001.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ {
+ static float val = 10000.0f;
+ ImGui::SliderFloat("Offset 2", &val, 10000.0f, 20000.0f, "%.3f", slider_flags);
+ ImGui::NextColumn();
+ ImGui::DragFloat("Offset 2 drag", &val, 100.0f, 10000.0f, 20000.0f, "%.3f", drag_flags);
+ ImGui::NextColumn();
+ }
+
+ ImGui::Columns(1);
+ ImGui::PopID();
+ }
+
+ ImGui::End();
+}
+
// Demonstrate most Dear ImGui features (this is big function!)
// You may execute this function to experiment with the UI and understand what it does.
// You may then search for keywords in the code when you are interested by a specific feature.
@@ -227,6 +369,8 @@
// Most ImGui functions would normally just crash if the context is missing.
IM_ASSERT(ImGui::GetCurrentContext() != NULL && "Missing dear imgui context. Refer to examples app!");
+ TestLogarithmicDragSliders();
+
// Examples Apps (accessible from the "Examples" menu)
static bool show_app_main_menu_bar = false;
static bool show_app_documents = false;
