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Copy pathimguilistview.cpp
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584 lines (524 loc) · 31.7 KB
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// Cfx addition
#include "StdInc.h"
//- Common Code For All Addons needed just to ease inclusion as separate files in user code ----------------------
#include <imgui.h>
#undef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#include <imgui_internal.h> // Just for IM_PLACEMENT_NEW
//-----------------------------------------------------------------------------------------------------------------
#include "imguilistview.h"
#include <stdlib.h> // qsort
namespace ImGui {
bool ListViewBase::render(float listViewHeight, const ImVector<int> *pOptionalColumnReorderVector, int maxNumColumnToDisplay, float contentRegionWidthForHorizontalScrolling) const {
//if (listViewHeight<0) listViewHeight = getMaxPossibleHeight(); // Hack to fix an issue, but I leave it to the user, and comment it out
ImGui::PushID(this);
const int numColumns = (int) getNumColumns();
const size_t numRows = getNumRows();
if (maxNumColumnToDisplay<0) maxNumColumnToDisplay = numColumns;
if (pOptionalColumnReorderVector && (int)pOptionalColumnReorderVector->size()<maxNumColumnToDisplay) maxNumColumnToDisplay = (int)pOptionalColumnReorderVector->size();
int col = 0;
//ImVector<HeaderData> m_headerData; // We can remove this ImVector, if we call getHeaderData(...) 2X times (not sure if it's faster). UPDATE: used member variable (but this way we can't update it at runtime!)
const bool mustFetchHeaderData = (int)m_headerData.size()<numColumns;
if (mustFetchHeaderData) updateHeaderData();
int columnSortingIndex = -1;
static ImVec4 transparentColor(1,1,1,0);
const bool useFullHeight = listViewHeight <0;
const ImGuiStyle& style = ImGui::GetStyle();
const float columnHeaderDeltaOffsetX = style.WindowPadding.x;
// Column headers
float columnWidthSum = 0;
ImGui::PushStyleColor(ImGuiCol_Border,style.Colors[ImGuiCol_Separator]);
ImGui::Separator();
ImGui::PopStyleColor();
ImGui::Columns(maxNumColumnToDisplay);
ImGui::PushStyleColor(ImGuiCol_Button,transparentColor);
ImGui::PushStyleColor(ImGuiCol_Border,transparentColor);
ImGui::PushStyleColor(ImGuiCol_BorderShadow,transparentColor);
bool mustDisplayTooltip=false;
for (int colID=0;colID<maxNumColumnToDisplay;colID++) {
col = pOptionalColumnReorderVector ? (*pOptionalColumnReorderVector)[colID] : colID;
HeaderData& hd = m_headerData[col];
if (mustFetchHeaderData) {
m_columnOffsets[col] = (colID>0 && !useFullHeight) ? (columnWidthSum-columnHeaderDeltaOffsetX) : columnWidthSum;
if (hd.formatting.columnWidth>0) {
ImGui::SetColumnOffset(colID,m_columnOffsets[col]);
columnWidthSum+=hd.formatting.columnWidth;
}
else columnWidthSum+=ImGui::GetColumnWidth(colID);
}
else if (!useFullHeight) ImGui::SetColumnOffset(colID,m_columnOffsets[col]+columnHeaderDeltaOffsetX);//useFullHeight ? 0 : columnHeaderDeltaOffsetX);
mustDisplayTooltip = hd.formatting.headerTooltip && strlen(hd.formatting.headerTooltip)>0;
if (!hd.sorting.sortable) {
ImGui::Text("%s",hd.name);
if (mustDisplayTooltip && ImGui::IsItemHovered()) ImGui::SetTooltip("%s",hd.formatting.headerTooltip);
}
else {
if (ImGui::SmallButton(hd.name)) {
lastSortedColumn = columnSortingIndex = col;
}
if (mustDisplayTooltip && ImGui::IsItemHovered()) ImGui::SetTooltip("%s",hd.formatting.headerTooltip);
if (lastSortedColumn == col) {
if (!mustFetchHeaderData) {
hd.reset();
getHeaderData(col,hd); // Needed because we must update "hd.sorting.sortingAscending"
}
ImGui::SameLine(0,ImGui::GetColumnWidth(colID)-ImGui::CalcTextSize(hd.name).x-ImGui::CalcTextSize(hd.sorting.sortingAscending ? " v" : " ^").x-style.FramePadding.x*2.0-style.ItemSpacing.x);
ImGui::Text(hd.sorting.sortingAscending ? "v" : "^");
}
}
if (colID!=maxNumColumnToDisplay-1) ImGui::NextColumn();
}
ImGui::PopStyleColor(3);
ImGui::Columns(1);
ImGui::PushStyleColor(ImGuiCol_Border,style.Colors[ImGuiCol_Separator]);
ImGui::Separator();
ImGui::PopStyleColor();
// Rows
bool rowSelectionChanged = false;bool colSelectionChanged = false; // The latter is not exposed but might turn useful
bool skipDisplaying = false;
if (!useFullHeight) {
//ImGui::SetNextWindowContentWidth(ImGui::GetWindowContentRegionWidth() + 50); // Last number is hard-coded! Bad!
if (contentRegionWidthForHorizontalScrolling>0) ImGui::SetNextWindowContentSize(ImVec2(contentRegionWidthForHorizontalScrolling,0.f));
skipDisplaying = !ImGui::BeginChild("##ListViewRows",ImVec2(0,listViewHeight),false,contentRegionWidthForHorizontalScrolling>0 ? ImGuiWindowFlags_HorizontalScrollbar : 0);
}
if (!skipDisplaying) {
const float textLineHeight = ImGui::GetTextLineHeight();
float itemHeight = ImGui::GetTextLineHeightWithSpacing();
int displayStart = 0, displayEnd = (int) numRows;
ImGui::CalcListClipping(numRows, itemHeight, &displayStart, &displayEnd);
if (scrollToRow>=0) {
if (displayStart>scrollToRow) displayStart = scrollToRow;
else if (displayEnd<=scrollToRow) displayEnd = scrollToRow+1;
else scrollToRow = -1; // we reset it now
}
ImGui::SetCursorPosY(ImGui::GetCursorPosY() + (displayStart * itemHeight));
bool isThisRowSelected = false;const char* txt=NULL;bool mustDisplayEditor = false;
editingModePresent = false;
const ImVec4 ImGuiColHeader = ImGui::GetStyle().Colors[ImGuiCol_Header];
HeaderData* hd;CellData cd;columnWidthSum=0;
ImGui::Columns(maxNumColumnToDisplay);
for (int colID=0;colID<maxNumColumnToDisplay;colID++) {
col = pOptionalColumnReorderVector ? (*pOptionalColumnReorderVector)[colID] : colID;
hd = &m_headerData[col];
if (firstTimeDrawingRows) {
m_columnOffsets[col] = columnWidthSum;
if (hd->formatting.columnWidth>0) columnWidthSum+=hd->formatting.columnWidth;
else columnWidthSum+=ImGui::GetColumnWidth(colID);
ImGui::SetColumnOffset(colID,m_columnOffsets[col]);
}
else m_columnOffsets[col] = ImGui::GetColumnOffset(colID);
const HeaderData::Type& hdType = hd->type;
//const HeaderData::Formatting& hdFormatting = hd->formatting;
//const HeaderData::Editing& hdEditing = hd->editing;
const bool hdEditable = hd->editing.editable;
bool partOfTheCellClicked = false; // currently used only when the quad that displays the HT_COLOR is clicked
if (hdType.headerType==HT_COLOR || hdType.headerType==HT_ICON) {
ImGui::PushStyleColor(ImGuiCol_ButtonHovered,transparentColor);
ImGui::PushStyleColor(ImGuiCol_ButtonActive,transparentColor);
ImGui::PushStyleColor(ImGuiCol_Button, transparentColor);
}
if (!hdEditable) {
ImGui::PushStyleColor(ImGuiCol_HeaderHovered,transparentColor);
ImGui::PushStyleColor(ImGuiCol_HeaderActive,transparentColor);
}
for (int row = displayStart; row < displayEnd; ++row) {
isThisRowSelected = (selectedRow == row);
mustDisplayEditor = isThisRowSelected && hdEditable && selectedColumn==col && hd->type.headerType!=HT_CUSTOM && hd->type.headerType!=HT_ICON && editorAllowed;
if (colID==0 && row==scrollToRow) ImGui::SetScrollHereY();
cd.reset();
getCellData((size_t)row,col,cd);
ImGui::PushID(cd.fieldPtr);
if (mustDisplayEditor) {
editingModePresent = true;
const HeaderData::Editing& hdEditing = hd->editing;
// Draw editor here--------------------------------------------
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0,0));
const int hdPrecision = hdEditing.precisionOrStringBufferSize;
static const int precisionStrSize = 16;static char precisionStr[precisionStrSize];int precisionLastCharIndex;
if (hdPrecision>0) {
strcpy(precisionStr,"%.");
snprintf(&precisionStr[2], precisionStrSize-2,"%ds",hdPrecision);
precisionLastCharIndex = strlen(precisionStr)-1;
}
else {
strcpy(precisionStr,"%s");
precisionLastCharIndex = 1;
}
switch (hdType.headerType) {
case HT_DOUBLE: {
precisionStr[precisionLastCharIndex]='f';
const float minValue = (float) hdEditing.minValue;
const float maxValue = (float) hdEditing.maxValue;
const double rtd = hdType.needsRadiansToDegs ? GetRadiansToDegs<double>() : 1.f;
const double dtr = hdType.needsRadiansToDegs ? GetDegsToRadians<double>() : 1.f;
double* pField = (double*)cd.fieldPtr;
float value[4] = {0,0,0,0};
for (int vl=0;vl<hdType.numArrayElements;vl++) {
value[vl] = (float) ((*(pField+vl))*rtd);
}
bool changed = false;
switch (hdType.numArrayElements) {
case 2: changed = ImGui::SliderFloat2("##SliderDouble2Editor",value,minValue,maxValue,precisionStr);break;
case 3: changed = ImGui::SliderFloat3("##SliderDouble3Editor",value,minValue,maxValue,precisionStr);break;
case 4: changed = ImGui::SliderFloat4("##SliderDouble4Editor",value,minValue,maxValue,precisionStr);break;
default: changed = ImGui::SliderFloat("##SliderDoubleEditor",value,minValue,maxValue,precisionStr);break;
}
if (changed) {
for (int vl=0;vl<hdType.numArrayElements;vl++) {
*(pField+vl) = (double) value[vl] * dtr;
}
}
}
break;
case HT_FLOAT: {
precisionStr[precisionLastCharIndex]='f';
const float minValue = (float) hdEditing.minValue;
const float maxValue = (float) hdEditing.maxValue;
const float rtd = hdType.needsRadiansToDegs ? GetRadiansToDegs<float>() : 1.f;
const float dtr = hdType.needsRadiansToDegs ? GetDegsToRadians<float>() : 1.f;
float* pField = (float*)cd.fieldPtr;
float value[4] = {0,0,0,0};
for (int vl=0;vl<hdType.numArrayElements;vl++) {
value[vl] = (float) ((*(pField+vl))*rtd);
}
bool changed = false;
switch (hdType.numArrayElements) {
case 2: changed = ImGui::SliderFloat2("##SliderFloat2Editor",value,minValue,maxValue,precisionStr);break;
case 3: changed = ImGui::SliderFloat3("##SliderFloat3Editor",value,minValue,maxValue,precisionStr);break;
case 4: changed = ImGui::SliderFloat4("##SliderFloat4Editor",value,minValue,maxValue,precisionStr);break;
default: changed = ImGui::SliderFloat("##SliderFloatEditor",value,minValue,maxValue,precisionStr);break;
}
if (changed) {
for (int vl=0;vl<hdType.numArrayElements;vl++) {
*(pField+vl) = (float) value[vl]*dtr;
}
}
}
break;
case HT_UNSIGNED: {
//precisionStr[precisionLastCharIndex]='d';
const int minValue = (int) hdEditing.minValue;
const int maxValue = (int) hdEditing.maxValue;
unsigned* pField = (unsigned*) cd.fieldPtr;
int value[4] = {0,0,0,0};
for (int vl=0;vl<hdType.numArrayElements;vl++) {
value[vl] = (int) *(pField+vl);
}
bool changed = false;
switch (hdType.numArrayElements) {
case 2: changed = ImGui::SliderInt2("##SliderUnsigned2Editor",value,minValue,maxValue,precisionStr);break;
case 3: changed = ImGui::SliderInt3("##SliderUnsigned3Editor",value,minValue,maxValue,precisionStr);break;
case 4: changed = ImGui::SliderInt4("##SliderUnsigned4Editor",value,minValue,maxValue,precisionStr);break;
default: changed = ImGui::SliderInt("##SliderUnsignedEditor",value,minValue,maxValue,precisionStr);break;
}
if (changed) {
for (int vl=0;vl<hdType.numArrayElements;vl++) {
*(pField+vl) = (unsigned) value[vl];
}
}
}
break;
case HT_INT: {
//precisionStr[precisionLastCharIndex]='d';
const int minValue = (int) hdEditing.minValue;
const int maxValue = (int) hdEditing.maxValue;
int* pField = (int*) cd.fieldPtr;
int value[4] = {0,0,0,0};
for (int vl=0;vl<hdType.numArrayElements;vl++) {
value[vl] = (int) *(pField+vl);
}
bool changed = false;
switch (hdType.numArrayElements) {
case 2: changed = ImGui::SliderInt2("##SliderInt2Editor",value,minValue,maxValue,precisionStr);break;
case 3: changed = ImGui::SliderInt3("##SliderInt3Editor",value,minValue,maxValue,precisionStr);break;
case 4: changed = ImGui::SliderInt4("##SliderInt4Editor",value,minValue,maxValue,precisionStr);break;
default: changed = ImGui::SliderInt("##SliderIntEditor",value,minValue,maxValue,precisionStr);break;
}
if (changed) {
for (int vl=0;vl<hdType.numArrayElements;vl++) {
*(pField+vl) = (int) value[vl];
}
}
}
break;
case HT_BOOL: {
bool * boolPtr = (bool*) cd.fieldPtr;
if (*boolPtr) ImGui::Checkbox("true##CheckboxBoolEditor",boolPtr); // returns true when pressed
else ImGui::Checkbox("false##CheckboxBoolEditor",boolPtr); // returns true when pressed
}
break;
case HT_ENUM: {
ImGui::Combo("##ComboEnumEditor",(int*) cd.fieldPtr,hdType.textFromEnumFunctionPointer,hdType.textFromEnumFunctionPointerUserData,hdType.numEnumElements);
}
break;
case HT_STRING: {
char* txtField = (char*) cd.fieldPtr;
ImGui::InputText("##InputTextEditor",txtField,hdPrecision,ImGuiInputTextFlags_EnterReturnsTrue);
}
break;
case HT_COLOR: {
float* pColor = (float*) cd.fieldPtr;
//ImGui::ColorEditMode(colorEditingMode);
if (hdType.numArrayElements==3) ImGui::ColorEdit3("##ColorEdit3Editor",pColor,ImGuiColorEditFlags_NoAlpha);
else ImGui::ColorEdit4("##ColorEdit4Editor",pColor,ImGuiColorEditFlags_AlphaBar | ImGuiColorEditFlags_AlphaPreview);
}
default: break;
}
ImGui::PopStyleVar();
// End Draw Editor here----------------------------------------
}
else {
partOfTheCellClicked = false;
txt = NULL;
if (hdType.headerType==HT_CUSTOM) {
txt = cd.customText;
if (txt && txt[0]=='\0') txt=NULL; // Optional
}
else {
txt = GetTextFromCellFieldDataPtr(*hd,cd.fieldPtr);
if (txt && txt[0]=='\0') txt=NULL; // Optional
if (hdType.headerType==HT_COLOR) {
const float *pFloat = (const float*) cd.fieldPtr;
const ImVec4 color = ImVec4(*pFloat,*(pFloat+1),*(pFloat+2),hdType.numArrayElements==3?1.f:(*(pFloat+3)));
ImGui::PushStyleColor(ImGuiCol_Button,color);
//partOfTheCellClicked = ImGui::ColorButton("",color,true);
partOfTheCellClicked = ImGui::ColorButton("",color,ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | (hdType.numArrayElements==3 ? ImGuiColorEditFlags_NoAlpha : 0),ImVec2(0,textLineHeight));
if (txt) ImGui::SameLine();
}
else if (hdType.headerType==HT_ICON) {
const CellData::IconData* pIconData = (const CellData::IconData*) cd.fieldPtr;
if (pIconData->user_texture_id) {
ImVec2 iconSize;
iconSize.x = iconSize.y = textLineHeight;
partOfTheCellClicked = ImGui::ImageButton(pIconData->user_texture_id,iconSize,pIconData->uv0,pIconData->uv1,0,pIconData->bg_col,pIconData->tint_col);
if (txt) ImGui::SameLine();
}
}
}
if (txt) {
if (isThisRowSelected && !hdEditable) {
ImGui::PushStyleColor(ImGuiCol_HeaderHovered,ImGuiColHeader);
ImGui::PushStyleColor(ImGuiCol_HeaderActive,ImGuiColHeader);
}
if (ImGui::Selectable(txt,cd.selectedRowPtr) || partOfTheCellClicked) {
if (!*cd.selectedRowPtr) {
*cd.selectedRowPtr = true;
if (!partOfTheCellClicked) editorAllowed = (selectedColumn==col);
else editorAllowed = false;
}
else editorAllowed = false;
if (selectedRow!=row) {
rowSelectionChanged = true;
popupMenuOpenAtSelectedColumn = -1;
if (selectedRow>=0 && selectedRow<(int)numRows) {
// remove old selection
CellData cdOld;getCellData((size_t)selectedRow,0,cdOld); // Note that we use column 0 (since we retrieve a row data it makes no difference)
if (cdOld.selectedRowPtr) *cdOld.selectedRowPtr = false;
}
}
selectedRow = row;
if (selectedColumn!=col) colSelectionChanged = true;
selectedColumn = col;
}
if (isThisRowSelected && !hdEditable) {
//-------------------------------------------------------------------------
if (selectedRowPopupMenu) {
if (ImGui::GetIO().MouseDown[1] && ImGui::IsItemHovered()) popupMenuOpenAtSelectedColumn = col;
if (popupMenuOpenAtSelectedColumn==col) {
//static bool open=true; // Should it be member variable ?
//ImGui::BeginPopup(&open);
ImGui::OpenPopup("MyOwnListViewMenu");
if (ImGui::BeginPopup("MyOwnListViewMenu")) {
if (selectedRowPopupMenu(row,col,selectedRowPopupMenuUserData)) popupMenuOpenAtSelectedColumn = -1;
else {
ImVec2 pos = ImGui::GetWindowPos();pos.x-=5;pos.y-=5;
ImVec2 size = ImGui::GetWindowSize();size.x+=10;size.y+=10;
const ImVec2& mousePos = ImGui::GetIO().MousePos;
if (mousePos.x<pos.x || mousePos.y<pos.y || mousePos.x>pos.x+size.x || mousePos.y>pos.y+size.y) popupMenuOpenAtSelectedColumn = -1;
}
}
ImGui::EndPopup();
}
}
//----------------------------------------------------------------------------
// must be the same colors as (*)
ImGui::PopStyleColor();
ImGui::PopStyleColor();
}
}
if (hdType.headerType==HT_COLOR) {
ImGui::PopStyleColor();
}
}
ImGui::PopID();
}
if (!hdEditable) {
ImGui::PopStyleColor();
ImGui::PopStyleColor();
}
if (hdType.headerType==HT_COLOR || hdType.headerType==HT_ICON) {
ImGui::PopStyleColor();
ImGui::PopStyleColor();
ImGui::PopStyleColor();
}
if (colID!=maxNumColumnToDisplay-1) ImGui::NextColumn();
}
ImGui::Columns(1);
ImGui::SetCursorPosY(ImGui::GetCursorPosY() + ((numRows - displayEnd) * itemHeight));
firstTimeDrawingRows = false;
} // skipDisplaying
if (!useFullHeight) ImGui::EndChild();
ImGui::PushStyleColor(ImGuiCol_Border,style.Colors[ImGuiCol_Separator]);
ImGui::Separator();
ImGui::PopStyleColor();
ImGui::PopID();
scrollToRow = -1; // we must reset it
// Sorting:
if (columnSortingIndex>=0) const_cast<ListViewBase*>(this)->sort((size_t) columnSortingIndex);
return rowSelectionChanged; // Optional data we might want to expose: local variable: 'colSelectionChanged' and class variable: 'isInEditingMode'.
}
bool ListView::sort(size_t column) {
if ((int)column>=headers.size()) return false;
Header& h = headers[column];
HeaderData::Sorting& hds = h.hd.sorting;
if (!hds.sortable) return false;
// void qsort( void *ptr, size_t count, size_t size,int (*comp)(const void *, const void *) );
bool& sortingOrder = hds.sortingAscending;
ItemBase::SortingHelper sorter((int)column,sortingOrder,&hds.sortableElementsOfPossibleArray[0]); // This IS actually used!
typedef int (*CompareDelegate)(const void *, const void *);
CompareDelegate compareFunction = NULL;
switch (h.hd.type.headerType) {
case HT_BOOL:
compareFunction = ItemBase::SortingHelper::Compare_HT_BOOL;
break;
case HT_CUSTOM:
compareFunction = ItemBase::SortingHelper::Compare_HT_CUSTOM;
break;
case HT_INT:
case HT_ENUM:
compareFunction = ItemBase::SortingHelper::Compare<int>;
break;
case HT_UNSIGNED:
compareFunction = ItemBase::SortingHelper::Compare<unsigned>;
break;
case HT_FLOAT:
case HT_COLOR:
compareFunction = ItemBase::SortingHelper::Compare<float>;
break;
case HT_DOUBLE:
compareFunction = ItemBase::SortingHelper::Compare<double>;
break;
case HT_STRING:
compareFunction = ItemBase::SortingHelper::Compare<char*>;
break;
case HT_ICON:
compareFunction = ItemBase::SortingHelper::Compare_HT_ICON;
break;
default:
return false;
}
if (!compareFunction) return false;
qsort((void *) &items[0],items.size(),sizeof(ItemBase*),compareFunction);
sortingOrder = !sortingOrder; // next time it sorts backwards
updateSelectedRow(); // rows get shuffled after sorting: the visible selection is still correct (the boolean flag ItemBase::selected is stored in our row-item),
// but the 'selectedRow' field is not updated and must be adjusted
return true;
}
#ifndef IMGUILISTVIEW_NOTESTDEMO
class MyListViewTestItem : public ImGui::ListView::ItemBase {
public:
// Support static method for enum1 (the signature is the same used by ImGui::Combo(...))
static bool GetTextFromEnum1(void* ,int value,const char** pTxt) {
if (!pTxt) return false;
static const char* values[] = {"APPLE","LEMON","ORANGE"};
static int numValues = (int)(sizeof(values)/sizeof(values[0]));
if (value>=0 && value<numValues) *pTxt = values[value];
else *pTxt = "UNKNOWN";
return true;
}
// Fields and their pointers (MANDATORY!)
int index;
char path[1024]; // Note that if this column is editable, we must specify: ImGui::ListViewHeaderEditing(true,1024); in the ImGui::ListViewHeader::ctr().
int offset;
unsigned bytes;
bool valid;
float length[3];
ImVec4 color;
int enum1; // Note that it's an enum!
const void* getDataPtr(size_t column) const {
switch (column) {
case 0: return (const void*) &index;
case 1: return (const void*) path;
case 2: return (const void*) &offset;
case 3: return (const void*) &bytes;
case 4: return (const void*) &valid;
case 5: return (const void*) &length[0];
case 6: return (const void*) &color;
case 7: return (const void*) &enum1;
}
return NULL;
// Please note that we can easily try to speed up this method by adding a new field like:
// const void* fieldPointers[number of fields]; // and assigning them in our ctr
// Then here we can just use:
// IM_ASSERT(column<number of fields);
// return fieldPointers[column];
}
// (Optional) ctr for setting values faster later
MyListViewTestItem(int _index,const char* _path,int _offset,unsigned _bytes,bool _valid,const ImVec4& _length,const ImVec4& _color,int _enum1)
: index(_index),offset(_offset),bytes(_bytes),valid(_valid),color(_color),enum1(_enum1) {
IM_ASSERT(_path && strlen(_path)<1024);
strcpy(path,_path);
length[0] = _length.x;length[1] = _length.y;length[2] = _length.z; // Note that we have used "ImVec4" for _length, just because ImVec3 does not exist...
}
virtual ~MyListViewTestItem() {}
};
void TestListView() {
ImGui::Spacing();
static ImGui::ListView lv;
if (lv.headers.size()==0) {
lv.headers.push_back(ImGui::ListViewHeader("Index",NULL,ImGui::ListView::HT_INT,-1,50));
lv.headers.push_back(ImGui::ListViewHeader("Path",NULL,ImGui::ListView::HT_STRING,-1,125,"","",true,ImGui::ListViewHeaderEditing(true,1024)));
lv.headers.push_back(ImGui::ListViewHeader("Offset",NULL,ImGui::ListView::HT_INT,-1,52,"","",true));
lv.headers.push_back(ImGui::ListViewHeader("Bytes","The number of bytes",ImGui::ListView::HT_UNSIGNED,-1,52));
lv.headers.push_back(ImGui::ListViewHeader("Valid","A boolean flag",ImGui::ListView::HT_BOOL,-1,85,"Flag: ","!",true,ImGui::ListViewHeaderEditing(true)));
lv.headers.push_back(ImGui::ListViewHeader("Length","A float[3] array",ImGui::ListViewHeaderType(ImGui::ListView::HT_FLOAT,3),2,90,""," mt",ImGui::ListViewHeaderSorting(true,1,2,0),ImGui::ListViewHeaderEditing(true,3,-180.0,180.0))); // Note that here we use 2 decimals (precision), but 3 when editing; we use an explicit call to "ListViewHeaderType",specifying that the HT_FLOAT is composed by three elements; we have used an explicit call to "ListViewHeaderSorting" specifying that the items must be sorted based on the second float.
lv.headers.push_back(ImGui::ListViewHeader("Color",NULL,ImGui::ListView::HT_COLOR,-1,65,"","",true,ImGui::ListViewHeaderEditing(true))); // precision = -1 -> Hex notation; precision > 1 -> float notation; other = undefined behaviour. To display alpha we must use "ListViewHeaderType" explicitely like in the line above, specifying 4.
// for enums we must use the ctr that takes an ImGui::ListViewHeaderType, so we can pass the additional params to bind the enum:
lv.headers.push_back(ImGui::ListViewHeader("Enum1","An editable enumeration",ImGui::ListViewHeaderType(ImGui::ListView::HT_ENUM,3,&MyListViewTestItem::GetTextFromEnum1),-1,-1,"","",true,ImGui::ListViewHeaderEditing(true)));
// Just a test: 10000 items
lv.items.resize(10000);
MyListViewTestItem* item;
for (int i=0,isz=(int)lv.items.size();i<isz;i++) {
item = (MyListViewTestItem*) ImGui::MemAlloc(sizeof(MyListViewTestItem)); // MANDATORY (ImGuiListView::~ImGuiListView() will delete these with ImGui::MemFree(...))
IM_PLACEMENT_NEW(item) MyListViewTestItem(
i,
"My ' ' Dummy Path",
i*3,
(unsigned)i*4,(i%3==0)?true:false,
ImVec4((float)(i*30)/2.7345672,(float)(i%30)/2.7345672,(float)(i*5)/1.34,1.f), // ImVec3 does not exist... so we use an ImVec4 to initialize a float[3]
ImVec4((float)i/(float)(isz-1),0.8f,1.0f-(float)i/(float)(isz-1),1.0f), // HT_COLOR
i%3
); // MANDATORY even with blank ctrs. Reason: ImVector does not call ctrs/dctrs on items.
item->path[4]=(char) (33+(i%64)); //just to test sorting on strings
item->path[5]=(char) (33+(i/127)); //just to test sorting on strings
lv.items[i] = item;
}
//lv.setColorEditingMode(ImGuiColorEditMode_HSV); // Optional, but it's window-specific: it affects everything in this window AFAIK
}
// 2 lines just to have some feedback
if (ImGui::Button("Scroll to selected row")) lv.scrollToSelectedRow();ImGui::SameLine();
ImGui::Text("selectedRow:%d selectedColumn:%d isInEditingMode:%s",lv.getSelectedRow(),lv.getSelectedColumn(),lv.isInEditingMode() ? "true" : "false");
/*
static ImVector<int> optionalColumnReorder;
if (optionalColumnReorder.size()==0) {
const int numColumns = lv.headers.size();
optionalColumnReorder.resize(numColumns);
for (int i=0;i<numColumns;i++) optionalColumnReorder[i] = numColumns-i-1;
}
*/
static int maxListViewHeight=200; // optional: by default is -1 = as height as needed
ImGui::SliderInt("ListView Height",&maxListViewHeight,-1,500);// Just Testing "maxListViewHeight" here:
lv.render((float)maxListViewHeight);//(float)maxListViewHeight,&optionalColumnReorder,-1); // This method returns true when the selectedRow is changed by the user (however when selectedRow gets changed because of sorting it still returns false, because the pointed row-item does not change)
}
#endif //IMGUILISTVIEW_NOTESTDEMO
} //namespace ImGui