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ColorPicker: Forward AlphaPreview flag to its individual inputs/sliders. Split code into extra lines to make logic more readable. (#346)

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This commit is contained in:
omar 2017-07-29 14:32:41 +08:00
parent cdcda9ff68
commit 973d4a361b
2 changed files with 13 additions and 10 deletions
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9
imgui.cpp
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@ -9264,15 +9264,17 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
Separator();
}
float square_sz = ColorSquareSize();
ImGuiColorEditFlags picker_flags = (flags & (ImGuiColorEditFlags_NoAlpha|ImGuiColorEditFlags_AlphaBar|ImGuiColorEditFlags_Float)) | (ImGuiColorEditFlags_RGB | ImGuiColorEditFlags_HSV | ImGuiColorEditFlags_HEX) | ImGuiColorEditFlags_NoLabel;
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;
PushItemWidth(square_sz * 12.0f);
value_changed |= ColorPicker4("##picker", col, picker_flags);
PopItemWidth();
EndPopup();
}
// Context menu: display and store options. Don't apply to 'flags' this frame.
if (!(flags & ImGuiColorEditFlags_NoOptions) && BeginPopup("context"))
{
// Display and store options. Don't apply to 'flags' this frame.
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;
@ -9407,7 +9409,8 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
if ((flags & ImGuiColorEditFlags_ModeMask_) == 0)
flags |= ImGuiColorEditFlags_RGB | ImGuiColorEditFlags_HSV | ImGuiColorEditFlags_HEX;
PushItemWidth((alpha_bar ? bar1_pos_x : bar0_pos_x) + bars_width - picker_pos.x);
ImGuiColorEditFlags sub_flags = (flags & (ImGuiColorEditFlags_Float | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoColorSquare)) | ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoOptions | ImGuiColorEditFlags_NoTooltip;
ImGuiColorEditFlags sub_flags_to_forward = ImGuiColorEditFlags_Float | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoColorSquare | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf;
ImGuiColorEditFlags sub_flags = (flags & sub_flags_to_forward) | ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoOptions;
if (flags & ImGuiColorEditFlags_RGB)
value_changed |= ColorEdit4("##rgb", col, sub_flags | ImGuiColorEditFlags_RGB);
if (flags & ImGuiColorEditFlags_HSV)

14
imgui_demo.cpp
View File

@ -666,36 +666,36 @@ 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_flags = alpha_half_preview ? ImGuiColorEditFlags_AlphaPreviewHalf : (alpha_preview ? ImGuiColorEditFlags_AlphaPreview : 0);
int alpha_previw_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_flags);
ImGui::ColorEdit4("MyColor##2", (float*)&color, alpha_previw_flags);
ImGui::Text("Color widget with Float Display:");
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | alpha_flags);
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | alpha_previw_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_flags);
ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | alpha_previw_flags);
ImGui::Text("Color button only:");
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_flags, ImVec2(80,80));
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_previw_flags, ImVec2(80,80));
ImGui::Text("Color picker:");
static bool alpha = false;
static bool alpha_bar = false;
static int inputs_mode = 0;
static int inputs_mode = 2;
static float width = 200.0f;
ImGui::Checkbox("With Alpha", &alpha);
ImGui::Checkbox("With Alpha Bar", &alpha_bar);
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 = 0;
ImGuiColorEditFlags flags = alpha_previw_flags;
if (!alpha) flags |= ImGuiColorEditFlags_NoAlpha; // This is by default if you call ColorPicker3() instead of ColorPicker4()
if (alpha_bar) flags |= ImGuiColorEditFlags_AlphaBar;
if (inputs_mode == 1) flags |= ImGuiColorEditFlags_NoInputs;