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prototyping date picker widget

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This commit is contained in:
epezent 2020-09-08 00:56:00 -05:00
parent c0409ff4ff
commit 0154c02a37
2 changed files with 103 additions and 3 deletions
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101
implot.cpp
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@ -725,9 +725,12 @@ ImPlotTime AddTime(const ImPlotTime& t, ImPlotTimeUnit unit, int count) {
case ImPlotTimeUnit_Min: t_out.S += count * 60; break;
case ImPlotTimeUnit_Hr: t_out.S += count * 3600; break;
case ImPlotTimeUnit_Day: t_out.S += count * 86400; break;
case ImPlotTimeUnit_Mo: for (int i = 0; i < count; ++i) { // this might have a bug
case ImPlotTimeUnit_Mo: for (int i = 0; i < abs(count); ++i) {
GetTime(t_out, &Tm);
t_out.S += 86400 * GetDaysInMonth(Tm.tm_year + 1900, Tm.tm_mon);
if (count > 0)
t_out.S += 86400 * GetDaysInMonth(Tm.tm_year + 1900, Tm.tm_mon);
else if (count < 0)
t_out.S -= 86400 * GetDaysInMonth(Tm.tm_year + 1900 - Tm.tm_mon == 0 ? 1 : 0, Tm.tm_mon == 0 ? 11 : Tm.tm_mon - 1); // NOT WORKING
}
break;
case ImPlotTimeUnit_Yr: for (int i = 0; i < count; ++i) {
@ -3109,6 +3112,100 @@ void ShowUserGuide() {
ImGui::BulletText("Click legend label icons to show/hide plot items.");
}
bool ShowDatePicker(ImPlotTime* t) {
static const char* names_mo[] = {"January","February","March","April","May","June","July","August","September","October","November","December"};
static const char* names_wd[] = {"Su","Mo","Tu","We","Th","Fr","Sa"};
ImGuiStyle& style = ImGui::GetStyle();
tm& Tm = GImPlot->Tm;
GetTime(*t, &Tm);
const int this_year = Tm.tm_year + 1900;
const int last_year = this_year - 1;
const int this_mon = Tm.tm_mon;
const int last_mon = this_mon == 0 ? 11 : this_mon - 1;
const int days_this_mo = GetDaysInMonth(this_year, this_mon);
const int days_last_mo = GetDaysInMonth(this_mon == 0 ? last_year : this_year, last_mon);
ImPlotTime t_first_mo = FloorTime(*t,ImPlotTimeUnit_Mo);
GetTime(*t,&Tm);
const int first_wd = Tm.tm_wday;
// sizing
float ht = ImGui::GetFrameHeight();
const ImVec2 cell_size(ht*1.25f,ht);
// begin group
ImGui::BeginGroup();
// month year
ImGui::Text("%s %d", names_mo[this_mon], this_year);
// up/down arrows for month
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0,0,0,0));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0));
ImGui::SameLine(style.WindowPadding.x + 5*cell_size.x);
if (ImGui::ArrowButtonEx("##Up",ImGuiDir_Up,cell_size)) {
*t = AddTime(*t, ImPlotTimeUnit_Mo, -1);
}
ImGui::SameLine();
if (ImGui::ArrowButtonEx("##Down",ImGuiDir_Down,cell_size)) {
*t = AddTime(*t, ImPlotTimeUnit_Mo, 1);
}
// render weekday abbreviations
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
for (int i = 0; i < 7; ++i) {
ImGui::Button(names_wd[i],cell_size);
if (i != 6) ImGui::SameLine();
}
ImGui::PopItemFlag();
// 0 = last mo, 1 = this mo, 2 = next mo
int mo = first_wd > 0 ? 0 : 1;
int day = mo == 1 ? 1 : days_last_mo - first_wd + 1;
char buff[4];
for (int i = 0; i < 6; ++i) {
for (int j = 0; j < 7; ++j) {
if (mo == 0 && day > days_last_mo) {
mo = 1; day = 1;
}
else if (mo == 1 && day > days_this_mo) {
mo = 2; day = 1;
}
if (mo == 0 || mo == 2)
ImGui::PushStyleColor(ImGuiCol_Text, style.Colors[ImGuiCol_TextDisabled]);
else if (mo == 1 && day == Tm.tm_mday)
ImGui::PushStyleColor(ImGuiCol_Button, style.Colors[ImGuiCol_TextDisabled]);
snprintf(buff,4,"%d",day);
ImGui::Button(buff,cell_size);
if (j != 6)
ImGui::SameLine();
if (mo == 0 || mo == 2)
ImGui::PopStyleColor();
else if (mo == 1 && day == Tm.tm_mday)
ImGui::PopStyleColor();
day++;
}
}
ImGui::PopStyleVar();
ImGui::PopStyleColor();
ImGui::EndGroup();
return true;
}
void StyleColorsAuto(ImPlotStyle* dst) {
ImPlotStyle* style = dst ? dst : &ImPlot::GetStyle();
ImVec4* colors = style->Colors;

5
implot_internal.h
View File

@ -800,7 +800,7 @@ inline bool IsLeapYear(int year) {
// Returns the number of days in a month, accounting for Feb. leap years. #month is zero indexed.
inline int GetDaysInMonth(int year, int month) {
static const int days[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
return days[month] + (int)(month == 1 && IsLeapYear(year));
return days[month] + (int)(month == 1 && IsLeapYear(year));
}
// Make a timestamp from a tm struct expressed as a UTC time (i.e. GMT timezone).
@ -835,6 +835,9 @@ IMPLOT_API int FormatTime(const ImPlotTime& t, char* buffer, int size, ImPlotTim
// Prints a timestamp to console
IMPLOT_API void PrintTime(const ImPlotTime& t, ImPlotTimeFmt fmt);
// Shows a date picker widget block.
IMPLOT_API bool ShowDatePicker(ImPlotTime* t);
//-----------------------------------------------------------------------------
// [SECTION] Internal / Experimental Plotters
// No guarantee of forward compatibility here!