Created
October 5, 2016 09:19
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int BeginCombo(const char* pLabel, const char* pValue) | |
{ | |
ImGuiWindow* pWindow = ImGui::GetCurrentWindow(); | |
ImGuiState& oState = *GImGui; | |
const ImGuiStyle& oStyle = oState.Style; | |
const ImGuiID oId = pWindow->GetID(pLabel); | |
const float fWidth = ImGui::CalcItemWidth(); | |
const ImVec2 oLabelSize = ImGui::CalcTextSize(pLabel, NULL, true); | |
const ImRect oFrameRect(pWindow->DC.CursorPos, pWindow->DC.CursorPos + ImVec2(fWidth, oLabelSize.y) + oStyle.FramePadding * 2.0f); | |
const ImRect oTotalRect(oFrameRect.Min, oFrameRect.Max + ImVec2(oLabelSize.x > 0.0f ? oStyle.ItemInnerSpacing.x + oLabelSize.x : 0.0f, 0.0f)); | |
ImGui::ItemSize(oTotalRect, oStyle.FramePadding.y); | |
if (!ImGui::ItemAdd(oTotalRect, &oId)) | |
return false; | |
const float fArrowSize = (oState.FontSize + oStyle.FramePadding.x * 2.0f); | |
const bool bHovered = ImGui::IsHovered(oFrameRect, oId); | |
const ImRect oValueRect(oFrameRect.Min, oFrameRect.Max - ImVec2(fArrowSize, 0.0f)); | |
ImGui::RenderFrame(oFrameRect.Min, oFrameRect.Max, pWindow->Color(ImGuiCol_FrameBg), true, oStyle.FrameRounding); | |
ImGui::RenderFrame(ImVec2(oFrameRect.Max.x-fArrowSize, oFrameRect.Min.y), oFrameRect.Max, pWindow->Color(bHovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button), true, oStyle.FrameRounding); // FIXME-ROUNDING | |
ImGui::RenderCollapseTriangle(ImVec2(oFrameRect.Max.x-fArrowSize, oFrameRect.Min.y) + oStyle.FramePadding, true); | |
ImGui::RenderTextClipped(oFrameRect.Min + oStyle.FramePadding, oValueRect.Max, pValue, NULL, NULL); | |
if (oLabelSize.x > 0) | |
ImGui::RenderText(ImVec2(oFrameRect.Max.x + oStyle.ItemInnerSpacing.x, oFrameRect.Min.y + oStyle.FramePadding.y), pLabel); | |
bool bJustOpened = false; | |
if (bHovered) | |
{ | |
ImGui::SetHoveredID(oId); | |
if (oState.IO.MouseClicked[0]) | |
{ | |
ImGui::SetActiveID(0, pWindow); | |
ImGui::OpenPopup(pLabel); | |
ImGui::SetNextWindowPos(ImVec2(oTotalRect.Min.x, oTotalRect.Max.y)); | |
bJustOpened = true; | |
} | |
} | |
//TODO: Use BeginPopupEx but in next version of ImGui | |
return ImGui::BeginPopup(pLabel) ? bJustOpened ? 2 : 1 : 0; | |
} | |
void EndCombo() | |
{ | |
ImGui::EndPopup(); | |
} |
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/* Exemple | |
if (BeginCombo("My combobox", "Value")) | |
{ | |
ImGui::MenuItem("Value"); | |
ImGui::MenuItem("Value2"); | |
ImGui::MenuItem("Value3"); | |
EndCombo(); | |
} | |
*/ | |
static int BeginCombo(const char* pLabel, const char* pValue); | |
static void EndCombo(); | |
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