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#include "datetime.h"
#include "imgui/imgui.h"
#include "imgui/imgui_stdlib.h"
#include "core/style.h"
#include <cmath>
#ifdef _WIN32
#define timegm _mkgmtime
#endif
namespace widgets
{
DateTimePicker::DateTimePicker(std::string id, double input_time, bool date_only)
{
start_edit = false;
d_id = id;
d_date_only = date_only;
handle_input(input_time);
}
DateTimePicker::~DateTimePicker()
{
}
void DateTimePicker::handle_input(double input_time)
{
time_t input_timet;
std::string seconds_holder;
if (input_time == -1)
{
auto_time = true;
input_timet = time(NULL);
}
else
{
auto_time = false;
input_timet = (time_t)input_time;
}
timestamp = *gmtime(&input_timet);
seconds_holder = std::to_string(input_time - input_timet);
seconds_decimal = std::stoi(seconds_holder.substr(seconds_holder.find(".") + 1));
year_holder = timestamp.tm_year + 1900;
month_holder = timestamp.tm_mon + 1;
}
double DateTimePicker::get()
{
if (auto_time)
return -1.0f;
else
{
double return_value = timegm(×tamp);
if (seconds_decimal > 0)
return_value += ((double)seconds_decimal / std::pow(10.0, int(log10(seconds_decimal) + 1)));
return return_value;
}
}
void DateTimePicker::set(double input_time)
{
handle_input(input_time);
}
void DateTimePicker::draw()
{
const char* checkbox_label;
show_picker = auto_time;
if (auto_time)
checkbox_label = "Auto###dsauto";
else
checkbox_label = "###dsauto";
ImGui::Checkbox(checkbox_label, &auto_time);
if (!show_picker)
{
//Calculate Draw Size
ImVec2 slash_size = ImGui::CalcTextSize("/");
ImVec2 dot_size = ImGui::CalcTextSize(".");
ImVec2 digit_size = ImGui::CalcTextSize("0");
int date_width = (slash_size.x * 2) + (digit_size.x * 8) + (18 * ui_scale);
int time_width = (dot_size.x * 3) + (digit_size.x * 10) + (24 * ui_scale);
//Setup style
ImGuiStyle style = ImGui::GetStyle();
ImGui::PushStyleColor(ImGuiCol_FrameBg, ImVec4());
ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 0);
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, style.FramePadding.y));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(3 * ui_scale, style.ItemSpacing.y));
ImGui::PushStyleVar(ImGuiStyleVar_ItemInnerSpacing, ImVec2(3 * ui_scale, style.ItemInnerSpacing.y));
//Draw backgrounds
ImGui::SameLine();
ImVec2 start_position = ImGui::GetCursorScreenPos();
ImDrawList* draw_list = ImGui::GetWindowDrawList();
ImU32 input_background = ImGui::ColorConvertFloat4ToU32(style.Colors[ImGuiCol_FrameBg]);
ImU32 input_border = ImGui::ColorConvertFloat4ToU32(style.Colors[ImGuiCol_Border]);
draw_list->AddRectFilled(ImVec2(start_position.x, start_position.y),
ImVec2(start_position.x + date_width, start_position.y + slash_size.y + (6 * ui_scale)), input_background, style.ChildRounding);
if(!d_date_only)
draw_list->AddRectFilled(ImVec2(start_position.x + date_width + (10 * ui_scale), start_position.y),
ImVec2(start_position.x + date_width + (10 * ui_scale) + time_width, start_position.y + slash_size.y + (6 * ui_scale)), input_background, style.ChildRounding);
if (style.FrameBorderSize != 0.0f)
{
draw_list->AddRect(ImVec2(start_position.x, start_position.y),
ImVec2(start_position.x + date_width, start_position.y + slash_size.y + (6 * ui_scale)), input_border, style.ChildRounding);
if (!d_date_only)
draw_list->AddRect(ImVec2(start_position.x + date_width + (10 * ui_scale), start_position.y),
ImVec2(start_position.x + date_width + (10 * ui_scale) + time_width, start_position.y + slash_size.y + (6 * ui_scale)), input_border, style.ChildRounding);
}
//Date
bool auto_advance = false;
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + (3 * ui_scale));
ImGui::PushItemWidth(digit_size.x * 4);
if (ImGui::InputInt(std::string("/" + d_id + "year").c_str(), &year_holder, 0, 0, ImGuiInputTextFlags_NoHorizontalScroll))
{
timestamp.tm_year = year_holder - 1900;
if (year_holder > 999)
auto_advance = true;
}
ImGui::PopItemWidth();
ImGui::SameLine();
if (auto_advance)
{
ImGui::SetKeyboardFocusHere();
auto_advance = false;
}
ImGui::PushItemWidth(digit_size.x * 2);
if (ImGui::InputScalar(std::string("/" + d_id + "month").c_str(), ImGuiDataType_S32, (void*)&month_holder, (void*)NULL, (void*)NULL, "%02d", ImGuiInputTextFlags_NoHorizontalScroll))
{
if (month_holder == 0)
start_edit = true;
else if (month_holder > 9 || start_edit)
auto_advance = true;
}
if (ImGui::IsItemClicked() || (ImGui::IsItemFocused() && (ImGui::IsKeyPressed(ImGuiKey_Backspace) || ImGui::IsKeyPressed(ImGuiKey_Delete))))
start_edit = false;
if (ImGui::IsItemDeactivatedAfterEdit())
{
if (month_holder > 12)
month_holder = 12;
else if (month_holder < 1)
month_holder = 1;
timestamp.tm_mon = month_holder - 1;
start_edit = false;
}
ImGui::SameLine();
if (auto_advance)
{
ImGui::SetKeyboardFocusHere();
auto_advance = false;
}
if (ImGui::InputScalar(std::string(d_id + "day").c_str(), ImGuiDataType_S32, (void*)×tamp.tm_mday, (void*)NULL, (void*)NULL, "%02d", ImGuiInputTextFlags_NoHorizontalScroll))
{
if (timestamp.tm_mday == 0)
start_edit = true;
else if (timestamp.tm_mday > 9 || start_edit)
auto_advance = true;
}
if (ImGui::IsItemClicked() || (ImGui::IsItemFocused() && (ImGui::IsKeyPressed(ImGuiKey_Backspace) || ImGui::IsKeyPressed(ImGuiKey_Delete))))
start_edit = false;
if (ImGui::IsItemDeactivatedAfterEdit())
{
if (timestamp.tm_mday > 31 || timestamp.tm_mday < 1)
timestamp.tm_mday = 1;
start_edit = false;
}
ImGui::SameLine(0.0, 16.0 * ui_scale);
//Time
if (!d_date_only)
{
if (auto_advance)
{
ImGui::SetKeyboardFocusHere();
auto_advance = false;
}
if (ImGui::InputScalar(std::string(":" + d_id + "hour").c_str(), ImGuiDataType_S32, (void*)×tamp.tm_hour, (void*)NULL, (void*)NULL, "%02d", ImGuiInputTextFlags_NoHorizontalScroll))
{
if (timestamp.tm_hour == 0)
start_edit = true;
else if (timestamp.tm_hour > 9 || start_edit)
auto_advance = true;
}
if (ImGui::IsItemClicked() || (ImGui::IsItemFocused() && (ImGui::IsKeyPressed(ImGuiKey_Backspace) || ImGui::IsKeyPressed(ImGuiKey_Delete))))
start_edit = false;
if (ImGui::IsItemDeactivatedAfterEdit())
{
if (timestamp.tm_hour > 23)
timestamp.tm_hour = 23;
if (timestamp.tm_hour < 0)
timestamp.tm_hour = 0;
start_edit = false;
}
ImGui::SameLine();
if (auto_advance)
{
ImGui::SetKeyboardFocusHere();
auto_advance = false;
}
if (ImGui::InputScalar(std::string(":" + d_id + "min").c_str(), ImGuiDataType_S32, (void*)×tamp.tm_min, (void*)NULL, (void*)NULL, "%02d", ImGuiInputTextFlags_NoHorizontalScroll))
{
if (timestamp.tm_min == 0)
start_edit = true;
else if (timestamp.tm_min > 9 || start_edit)
auto_advance = true;
}
if (ImGui::IsItemClicked() || (ImGui::IsItemFocused() && (ImGui::IsKeyPressed(ImGuiKey_Backspace) || ImGui::IsKeyPressed(ImGuiKey_Delete))))
start_edit = false;
if (ImGui::IsItemDeactivatedAfterEdit())
{
if (timestamp.tm_min > 59)
timestamp.tm_min = 59;
if (timestamp.tm_min < 0)
timestamp.tm_min = 0;
start_edit = false;
}
ImGui::SameLine();
if (auto_advance)
{
ImGui::SetKeyboardFocusHere();
auto_advance = false;
}
if (ImGui::InputScalar(std::string("." + d_id + "sec").c_str(), ImGuiDataType_S32, (void*)×tamp.tm_sec, (void*)NULL, (void*)NULL, "%02d", ImGuiInputTextFlags_NoHorizontalScroll))
{
if (timestamp.tm_sec == 0)
start_edit = true;
else if (timestamp.tm_sec > 9 || start_edit)
auto_advance = true;
}
if (ImGui::IsItemClicked() || (ImGui::IsItemFocused() && (ImGui::IsKeyPressed(ImGuiKey_Backspace) || ImGui::IsKeyPressed(ImGuiKey_Delete))))
start_edit = false;
if (ImGui::IsItemDeactivatedAfterEdit())
{
if (timestamp.tm_sec > 59)
timestamp.tm_sec = 59;
if (timestamp.tm_sec < 0)
timestamp.tm_sec = 0;
start_edit = false;
}
ImGui::PopItemWidth();
ImGui::SameLine();
if (auto_advance)
{
ImGui::SetKeyboardFocusHere();
auto_advance = false;
}
ImGui::PushItemWidth(digit_size.x * 4);
ImGui::InputInt(std::string(d_id + "dsec").c_str(), &seconds_decimal, 0, 0, ImGuiInputTextFlags_NoHorizontalScroll);
ImGui::PopItemWidth();
}
ImGui::SameLine();
ImGui::PopStyleVar(4);
ImGui::PopStyleColor();
ImGui::TextUnformatted(" UTC");
}
}
} // namespace widgets
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