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ColorPicker: Added ImGuiColorEditFlags_NoSidePreview flag + optional reference color. Added more demo code. (#346)

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This commit is contained in:
omar 2017-07-29 17:23:32 +08:00
parent e84224bcd5
commit 3926bd08e1
3 changed files with 75 additions and 52 deletions
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89
imgui.cpp
View File

@ -9266,48 +9266,28 @@ 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 = (flags & picker_flags_to_forward) | (ImGuiColorEditFlags_RGB | ImGuiColorEditFlags_HSV | ImGuiColorEditFlags_HEX) | ImGuiColorEditFlags_NoLabel;
if ((flags & ImGuiColorEditFlags_NoRefColor) == 0)
picker_flags |= ImGuiColorEditFlags_NoColorSquare;
ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags_Float | 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);
value_changed |= ColorPicker4("##picker", col, picker_flags, &g.ColorPickerRef.x);
PopItemWidth();
if ((flags & ImGuiColorEditFlags_NoRefColor) == 0)
{
SameLine();
BeginGroup();
Text("Current");
ColorButton("##current", col_v4, ImGuiColorEditFlags_NoTooltip|ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(square_sz * 3, square_sz * 2));
Text("Original");
if (ColorButton("##original", g.ColorPickerRef, ImGuiColorEditFlags_NoTooltip|ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(square_sz * 3, square_sz * 2)))
{
memcpy(col, &g.ColorPickerRef, components * sizeof(float));
value_changed = true;
}
EndGroup();
}
EndPopup();
}
}
// Context menu: display and store options. Don't apply to 'flags' this frame.
if (!(flags & ImGuiColorEditFlags_NoOptions) && BeginPopup("context"))
{
ImGuiColorEditFlags new_flags = -1;
if (RadioButton("RGB", (flags & ImGuiColorEditFlags_RGB)?1:0)) new_flags = (flags & ~ImGuiColorEditFlags_ModeMask_) | ImGuiColorEditFlags_RGB;
if (RadioButton("HSV", (flags & ImGuiColorEditFlags_HSV)?1:0)) new_flags = (flags & ~ImGuiColorEditFlags_ModeMask_) | ImGuiColorEditFlags_HSV;
if (RadioButton("HEX", (flags & ImGuiColorEditFlags_HEX)?1:0)) new_flags = (flags & ~ImGuiColorEditFlags_ModeMask_) | ImGuiColorEditFlags_HEX;
Separator();
if (RadioButton("0..255", (flags & ImGuiColorEditFlags_Float)?0:1)) new_flags = (flags & ~ImGuiColorEditFlags_Float);
if (RadioButton("0.00..1.00", (flags & ImGuiColorEditFlags_Float)?1:0)) new_flags = (flags | ImGuiColorEditFlags_Float);
if (new_flags != -1)
g.ColorEditModeStorage.SetInt(storage_id, (int)(new_flags & ImGuiColorEditFlags_StoredMask_));
EndPopup();
}
// Recreate our own tooltip over's ColorButton() one because we want to display correct alpha here
if (!(flags & ImGuiColorEditFlags_NoTooltip) && IsItemHovered())
ColorTooltip(label, col, flags);
// Context menu: display and store options. Don't apply to 'flags' this frame.
if (!(flags & ImGuiColorEditFlags_NoOptions) && BeginPopup("context"))
{
ImGuiColorEditFlags new_flags = -1;
if (RadioButton("RGB", (flags & ImGuiColorEditFlags_RGB)?1:0)) new_flags = (flags & ~ImGuiColorEditFlags_ModeMask_) | ImGuiColorEditFlags_RGB;
if (RadioButton("HSV", (flags & ImGuiColorEditFlags_HSV)?1:0)) new_flags = (flags & ~ImGuiColorEditFlags_ModeMask_) | ImGuiColorEditFlags_HSV;
if (RadioButton("HEX", (flags & ImGuiColorEditFlags_HEX)?1:0)) new_flags = (flags & ~ImGuiColorEditFlags_ModeMask_) | ImGuiColorEditFlags_HEX;
Separator();
if (RadioButton("0..255", (flags & ImGuiColorEditFlags_Float)?0:1)) new_flags = (flags & ~ImGuiColorEditFlags_Float);
if (RadioButton("0.00..1.00", (flags & ImGuiColorEditFlags_Float)?1:0)) new_flags = (flags | ImGuiColorEditFlags_Float);
if (new_flags != -1)
g.ColorEditModeStorage.SetInt(storage_id, (int)(new_flags & ImGuiColorEditFlags_StoredMask_));
EndPopup();
}
if (label != label_display_end && !(flags & ImGuiColorEditFlags_NoLabel))
@ -9352,7 +9332,7 @@ bool ImGui::ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags fl
// ColorPicker
// Note: only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
// FIXME: we adjust the big color square height based on item width, which may cause a flickering feedback loop (if automatic height makes a vertical scrollbar appears, affecting automatic width..)
bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags)
bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags, const float* ref_col)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
@ -9364,6 +9344,9 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
PushID(label);
BeginGroup();
if ((flags & ImGuiColorEditFlags_NoSidePreview) == 0)
flags |= ImGuiColorEditFlags_NoColorSquare;
// Setup
bool alpha_bar = (flags & ImGuiColorEditFlags_AlphaBar) && !(flags & ImGuiColorEditFlags_NoAlpha);
ImVec2 picker_pos = window->DC.CursorPos;
@ -9407,15 +9390,41 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
}
}
if ((flags & ImGuiColorEditFlags_NoLabel) == 0)
if (!(flags & ImGuiColorEditFlags_NoSidePreview))
{
SameLine(0, style.ItemInnerSpacing.x);
BeginGroup();
}
if (!(flags & ImGuiColorEditFlags_NoLabel))
{
const char* label_display_end = FindRenderedTextEnd(label);
if (label != label_display_end)
{
SameLine(0, style.ItemInnerSpacing.x);
if ((flags & ImGuiColorEditFlags_NoSidePreview))
SameLine(0, style.ItemInnerSpacing.x);
TextUnformatted(label, label_display_end);
}
}
if (!(flags & ImGuiColorEditFlags_NoSidePreview))
{
ImVec4 col_v4(col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
float square_sz = ColorSquareSize();
if ((flags & ImGuiColorEditFlags_NoLabel))
Text("Current");
ColorButton("##current", col_v4, (flags & (ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf)), 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)), ImVec2(square_sz * 3, square_sz * 2)))
{
memcpy(col, ref_col, ((flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4) * sizeof(float));
value_changed = true;
}
}
EndGroup();
}
// Convert back color to RGB
if (hsv_changed)

4
imgui.h
View File

@ -280,7 +280,7 @@ namespace ImGui
IMGUI_API bool ColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags = 0); // 3-4 components color edition. click on colored squared to open a color picker, right-click for options. Hint: 'float col[3]' function argument is same as 'float* col'. You can pass address of first element out of a contiguous structure, e.g. &myvector.x
IMGUI_API bool ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags = 0);
IMGUI_API bool ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags = 0);
IMGUI_API bool ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags = 0);
IMGUI_API bool ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags = 0, const float* ref_col = NULL);
IMGUI_API void PlotLines(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 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));
@ -678,7 +678,7 @@ enum ImGuiColorEditFlags_
ImGuiColorEditFlags_NoInputs = 1 << 12, // ColorEdit, ColorPicker: disable inputs sliders/text widgets, show only the colored square.
ImGuiColorEditFlags_NoTooltip = 1 << 13, // ColorEdit, ColorButton: disable tooltip when hovering the colored square.
ImGuiColorEditFlags_NoLabel = 1 << 14, // ColorEdit, ColorPicker: disable display of inline text label (the label is still used in tooltip and picker).
ImGuiColorEditFlags_NoRefColor = 1 << 15,
ImGuiColorEditFlags_NoSidePreview = 1 << 15, // ColorPicker: disable bigger color preview on right side of the picker, use small colored square instead
ImGuiColorEditFlags_ModeMask_ = ImGuiColorEditFlags_RGB|ImGuiColorEditFlags_HSV|ImGuiColorEditFlags_HEX,
ImGuiColorEditFlags_StoredMask_ = ImGuiColorEditFlags_RGB|ImGuiColorEditFlags_HSV|ImGuiColorEditFlags_HEX|ImGuiColorEditFlags_Float
};

34
imgui_demo.cpp
View File

@ -666,44 +666,58 @@ void ImGui::ShowTestWindow(bool* p_open)
static bool alpha_half_preview = false;
ImGui::Checkbox("With Alpha Preview", &alpha_preview);
ImGui::Checkbox("With Half Alpha Preview", &alpha_half_preview);
int alpha_previw_flags = alpha_half_preview ? ImGuiColorEditFlags_AlphaPreviewHalf : (alpha_preview ? ImGuiColorEditFlags_AlphaPreview : 0);
int alpha_preview_flags = 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_previw_flags);
ImGui::ColorEdit4("MyColor##2", (float*)&color, alpha_preview_flags);
ImGui::Text("Color widget with Float Display:");
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | alpha_previw_flags);
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | alpha_preview_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_previw_flags);
ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | alpha_preview_flags);
ImGui::Text("Color button only:");
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_previw_flags, ImVec2(80,80));
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_preview_flags, ImVec2(80,80));
ImGui::Text("Color picker:");
static bool alpha = true;
static bool alpha_bar = false;
static bool side_preview = true;
static bool ref_color = false;
static ImVec4 ref_color_v(1.0f,0.0f,1.0f,0.5f);
static int inputs_mode = 2;
static float width = 200.0f;
ImGui::Checkbox("With Alpha", &alpha);
ImGui::Checkbox("With Alpha Bar", &alpha_bar);
ImGui::Checkbox("With Side Preview", &side_preview);
if (side_preview)
{
ImGui::Checkbox("With Ref Color", &ref_color);
if (ref_color)
{
ImGui::SameLine();
ImGui::ColorEdit4("##RefColor", &ref_color_v.x, ImGuiColorEditFlags_NoInputs | alpha_preview_flags);
}
}
ImGui::Combo("Mode", &inputs_mode, "All Inputs\0No Inputs\0RGB Input\0HSV Input\0HEX Input\0");
ImGui::DragFloat("Width", &width, 1.0f, 1.0f, 999.0f);
ImGui::PushItemWidth(width);
ImGuiColorEditFlags flags = alpha_previw_flags;
//ImGui::DragFloat("Width", &width, 1.0f, 1.0f, 999.0f);
//ImGui::PushItemWidth(width);
ImGuiColorEditFlags flags = alpha_preview_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;
if (inputs_mode == 1) flags |= ImGuiColorEditFlags_NoInputs;
if (inputs_mode == 2) flags |= ImGuiColorEditFlags_RGB;
if (inputs_mode == 3) flags |= ImGuiColorEditFlags_HSV;
if (inputs_mode == 4) flags |= ImGuiColorEditFlags_HEX;
ImGui::ColorPicker4("MyColor##4", (float*)&color, flags);
ImGui::PopItemWidth();
ImGui::ColorPicker4("MyColor##4", (float*)&color, flags, ref_color ? &ref_color_v.x : NULL);
//ImGui::PopItemWidth();
ImGui::TreePop();
}