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ColorEdit4: Preliminary support for ImGuiColorEditFlags_HDR flag (currently only lift limits). (#346)

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This commit is contained in:
omar 2017-07-30 23:08:43 +08:00
parent f6a89779c8
commit 3075d8bcd4
3 changed files with 29 additions and 25 deletions
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11
imgui.cpp
View File

@ -9148,6 +9148,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
const char* label_display_end = FindRenderedTextEnd(label);
const bool alpha = (flags & ImGuiColorEditFlags_NoAlpha) == 0;
const bool hdr = (flags & ImGuiColorEditFlags_HDR) != 0;
const int components = alpha ? 4 : 3;
// If we're not showing any slider there's no point in querying color mode, nor showing the options menu, nor doing any HSV conversions
@ -9205,9 +9206,9 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
if (n + 1 == components)
PushItemWidth(w_item_last);
if (flags & ImGuiColorEditFlags_Float)
value_changed |= value_changed_as_float |= DragFloat(ids[n], &f[n], 1.0f/255.0f, 0.0f, 1.0f, fmt_table_float[fmt_idx][n]);
value_changed |= value_changed_as_float |= DragFloat(ids[n], &f[n], 1.0f/255.0f, 0.0f, hdr ? 0.0f : 1.0f, fmt_table_float[fmt_idx][n]);
else
value_changed |= DragInt(ids[n], &i[n], 1.0f, 0, 255, fmt_table_int[fmt_idx][n]);
value_changed |= DragInt(ids[n], &i[n], 1.0f, 0, hdr ? 0 : 255, fmt_table_int[fmt_idx][n]);
if (!(flags & ImGuiColorEditFlags_NoOptions) && IsItemHovered() && IsMouseClicked(1))
OpenPopup("context");
}
@ -9269,7 +9270,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
Separator();
}
float square_sz = ColorSquareSize();
ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags_Float | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaBar;// | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf;
ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags_Float | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaBar;// | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf;
ImGuiColorEditFlags picker_flags = (flags & picker_flags_to_forward) | (ImGuiColorEditFlags_RGB | ImGuiColorEditFlags_HSV | ImGuiColorEditFlags_HEX) | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_AlphaPreviewHalf;
PushItemWidth(square_sz * 12.0f); // Use 256 + bar sizes?
value_changed |= ColorPicker4("##picker", col, picker_flags, &g.ColorPickerRef.x);
@ -9436,12 +9437,12 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
float square_sz = ColorSquareSize();
if ((flags & ImGuiColorEditFlags_NoLabel))
Text("Current");
ColorButton("##current", col_v4, (flags & (ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf|ImGuiColorEditFlags_NoTooltip)), ImVec2(square_sz * 3, square_sz * 2));
ColorButton("##current", col_v4, (flags & (ImGuiColorEditFlags_HDR|ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf|ImGuiColorEditFlags_NoTooltip)), ImVec2(square_sz * 3, square_sz * 2));
if (ref_col != NULL)
{
Text("Original");
ImVec4 ref_col_v4(ref_col[0], ref_col[1], ref_col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : ref_col[3]);
if (ColorButton("##original", ref_col_v4, (flags & (ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf|ImGuiColorEditFlags_NoTooltip)), ImVec2(square_sz * 3, square_sz * 2)))
if (ColorButton("##original", ref_col_v4, (flags & (ImGuiColorEditFlags_HDR|ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf|ImGuiColorEditFlags_NoTooltip)), ImVec2(square_sz * 3, square_sz * 2)))
{
memcpy(col, ref_col, ((flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4) * sizeof(float));
value_changed = true;

23
imgui.h
View File

@ -668,17 +668,18 @@ enum ImGuiColorEditFlags_
ImGuiColorEditFlags_HSV = 1 << 2, // "
ImGuiColorEditFlags_HEX = 1 << 3, // "
ImGuiColorEditFlags_Float = 1 << 4, // ColorEdit, ColorPicker, ColorButton: display values formatted as 0.0f..1.0f floats instead of 0..255 integers. No round-trip of value via integers.
ImGuiColorEditFlags_AlphaBar = 1 << 5, // ColorEdit, ColorPicker: show vertical alpha bar/gradient in picker.
ImGuiColorEditFlags_AlphaPreview = 1 << 6, // ColorEdit, ColorPicker, ColorButton: display preview as a transparent color over a checkerboard, instead of opaque.
ImGuiColorEditFlags_AlphaPreviewHalf= 1 << 7, // ColorEdit, ColorPicker, ColorButton: display half opaque / half checkerboard, instead of opaque.
ImGuiColorEditFlags_NoAlpha = 1 << 8, // ColorEdit, ColorPicker, ColorButton: completely ignore Alpha component (read 3 components from the input pointer).
ImGuiColorEditFlags_NoPicker = 1 << 9, // ColorEdit: disable picker when clicking on colored square.
ImGuiColorEditFlags_NoOptions = 1 << 10, // ColorEdit: disable toggling options menu when right-clicking on inputs/small preview.
ImGuiColorEditFlags_NoSmallPreview = 1 << 11, // ColorEdit, ColorPicker: disable colored square preview next to the inputs. (e.g. to show only the inputs)
ImGuiColorEditFlags_NoInputs = 1 << 12, // ColorEdit, ColorPicker: disable inputs sliders/text widgets (e.g. to show only the small preview colored square).
ImGuiColorEditFlags_NoTooltip = 1 << 13, // ColorEdit, ColorPicker, ColorButton: disable tooltip when hovering the preview.
ImGuiColorEditFlags_NoLabel = 1 << 14, // ColorEdit, ColorPicker: disable display of inline text label (the label is still forwarded to the tooltip and picker).
ImGuiColorEditFlags_NoSidePreview = 1 << 15, // ColorPicker: disable bigger color preview on right side of the picker, use small colored square preview instead.
ImGuiColorEditFlags_HDR = 1 << 5, // ColorEdit: disable 0.0f..1.0f limits (note: you probably want to use ImGuiColorEditFlags_Float flag as well).
ImGuiColorEditFlags_AlphaBar = 1 << 6, // ColorEdit, ColorPicker: show vertical alpha bar/gradient in picker.
ImGuiColorEditFlags_AlphaPreview = 1 << 7, // ColorEdit, ColorPicker, ColorButton: display preview as a transparent color over a checkerboard, instead of opaque.
ImGuiColorEditFlags_AlphaPreviewHalf= 1 << 8, // ColorEdit, ColorPicker, ColorButton: display half opaque / half checkerboard, instead of opaque.
ImGuiColorEditFlags_NoAlpha = 1 << 9, // ColorEdit, ColorPicker, ColorButton: completely ignore Alpha component (read 3 components from the input pointer).
ImGuiColorEditFlags_NoPicker = 1 << 10, // ColorEdit: disable picker when clicking on colored square.
ImGuiColorEditFlags_NoOptions = 1 << 11, // ColorEdit: disable toggling options menu when right-clicking on inputs/small preview.
ImGuiColorEditFlags_NoSmallPreview = 1 << 12, // ColorEdit, ColorPicker: disable colored square preview next to the inputs. (e.g. to show only the inputs)
ImGuiColorEditFlags_NoInputs = 1 << 13, // ColorEdit, ColorPicker: disable inputs sliders/text widgets (e.g. to show only the small preview colored square).
ImGuiColorEditFlags_NoTooltip = 1 << 14, // ColorEdit, ColorPicker, ColorButton: disable tooltip when hovering the preview.
ImGuiColorEditFlags_NoLabel = 1 << 15, // ColorEdit, ColorPicker: disable display of inline text label (the label is still forwarded to the tooltip and picker).
ImGuiColorEditFlags_NoSidePreview = 1 << 16, // ColorPicker: disable bigger color preview on right side of the picker, use small colored square preview instead.
ImGuiColorEditFlags_ModeMask_ = ImGuiColorEditFlags_RGB|ImGuiColorEditFlags_HSV|ImGuiColorEditFlags_HEX,
ImGuiColorEditFlags_StoredMask_ = ImGuiColorEditFlags_RGB|ImGuiColorEditFlags_HSV|ImGuiColorEditFlags_HEX|ImGuiColorEditFlags_Float
};

20
imgui_demo.cpp
View File

@ -662,25 +662,27 @@ void ImGui::ShowTestWindow(bool* p_open)
{
static ImVec4 color = ImColor(114, 144, 154, 200);
static bool hdr = false;
static bool alpha_preview = true;
static bool alpha_half_preview = false;
ImGui::Checkbox("With HDR", &hdr); ImGui::SameLine(); ShowHelpMarker("Currently all this does is to lift the 0..1 limits on dragging widgets.");
ImGui::Checkbox("With Alpha Preview", &alpha_preview);
ImGui::Checkbox("With Half Alpha Preview", &alpha_half_preview);
int alpha_preview_flags = alpha_half_preview ? ImGuiColorEditFlags_AlphaPreviewHalf : (alpha_preview ? ImGuiColorEditFlags_AlphaPreview : 0);
int misc_flags = (hdr ? ImGuiColorEditFlags_HDR : 0) | (alpha_half_preview ? ImGuiColorEditFlags_AlphaPreviewHalf : (alpha_preview ? ImGuiColorEditFlags_AlphaPreview : 0));
ImGui::Text("Color widget:");
ImGui::SameLine(); ShowHelpMarker("Click on the colored square to open a color picker.\nRight-click on the colored square to show options.\nCTRL+click on individual component to input value.\n");
ImGui::ColorEdit3("MyColor##1", (float*)&color, ImGuiColorEditFlags_HSV);
ImGui::Text("Color widget with Alpha:");
ImGui::ColorEdit4("MyColor##2", (float*)&color, alpha_preview_flags);
ImGui::ColorEdit4("MyColor##2", (float*)&color, misc_flags);
ImGui::Text("Color widget with Float Display:");
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | alpha_preview_flags);
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | misc_flags);
ImGui::Text("Color button with Picker:");
ImGui::SameLine(); ShowHelpMarker("With the ImGuiColorEditFlags_NoInputs flag you can hide all the slider/text inputs.\nWith the ImGuiColorEditFlags_NoLabel flag you can pass a non-empty label which will only be used for the tooltip and picker popup.");
ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | alpha_preview_flags);
ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | misc_flags);
ImGui::Text("Color button with Custom Picker Popup:");
static bool saved_palette_inited = false;
@ -689,7 +691,7 @@ void ImGui::ShowTestWindow(bool* p_open)
if (!saved_palette_inited)
for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++)
ImGui::ColorConvertHSVtoRGB(n / 31.0f, 0.8f, 0.8f, saved_palette[n].x, saved_palette[n].y, saved_palette[n].z);
bool open_popup = ImGui::ColorButton("MyColor##3b", color, alpha_preview_flags);
bool open_popup = ImGui::ColorButton("MyColor##3b", color, misc_flags);
ImGui::SameLine();
open_popup |= ImGui::Button("Palette");
if (open_popup)
@ -702,7 +704,7 @@ void ImGui::ShowTestWindow(bool* p_open)
// FIXME: Adding a drag and drop example here would be perfect!
ImGui::Text("MY CUSTOM COLOR PICKER WITH AN AMAZING PALETTE!");
ImGui::Separator();
ImGui::ColorPicker4("##picker", (float*)&color, alpha_preview_flags | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoSmallPreview);
ImGui::ColorPicker4("##picker", (float*)&color, misc_flags | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoSmallPreview);
ImGui::SameLine();
ImGui::BeginGroup();
ImGui::Text("Current");
@ -726,7 +728,7 @@ void ImGui::ShowTestWindow(bool* p_open)
}
ImGui::Text("Color button only:");
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_preview_flags, ImVec2(80,80));
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, misc_flags, ImVec2(80,80));
ImGui::Text("Color picker:");
static bool alpha = true;
@ -745,14 +747,14 @@ void ImGui::ShowTestWindow(bool* p_open)
if (ref_color)
{
ImGui::SameLine();
ImGui::ColorEdit4("##RefColor", &ref_color_v.x, ImGuiColorEditFlags_NoInputs | alpha_preview_flags);
ImGui::ColorEdit4("##RefColor", &ref_color_v.x, ImGuiColorEditFlags_NoInputs | misc_flags);
}
}
ImGui::Combo("Mode", &inputs_mode, "All Inputs\0No Inputs\0RGB Input\0HSV Input\0HEX Input\0");
ImGui::SameLine(); ShowHelpMarker("User can right-click the inputs and override edit mode.");
//ImGui::DragFloat("Width", &width, 1.0f, 1.0f, 999.0f);
//ImGui::PushItemWidth(width);
ImGuiColorEditFlags flags = alpha_preview_flags;
ImGuiColorEditFlags flags = misc_flags;
if (!alpha) flags |= ImGuiColorEditFlags_NoAlpha; // This is by default if you call ColorPicker3() instead of ColorPicker4()
if (alpha_bar) flags |= ImGuiColorEditFlags_AlphaBar;
if (!side_preview) flags |= ImGuiColorEditFlags_NoSidePreview;