// Memory Editor contents only
void DrawContents(byte[] mem_data_void_ptr, int mem_size, int base_display_addr = 0x0000)
{
var CmdList = LGui.CreateCommandList();
var mem_data = mem_data_void_ptr;
Sizes s = new Sizes();
CalcSizes(ref s, mem_size, base_display_addr);
var IO = LGui.GetIO();
// We begin into our scrolling region with the 'ImGuiWindowFlags_NoMove' in order to prevent click from moving the window.
// This is used as a facility since our main click detection code doesn't assign an ActiveId so the click would normally be caught as a window-move.
float height_separator = 5;
int line_total_count = (int)((mem_size + Cols - 1) / Cols);
/*ImGuiListClipper clipper(line_total_count, s.LineHeight);
* const size_t visible_start_addr = clipper.DisplayStart * Cols;
* const size_t visible_end_addr = clipper.DisplayEnd * Cols;*/
var DisplayStart = (int)(LGui.GetFrameScrollY() / (s.LineHeight + 3));
var DisplayEnd = (int)((LGui.GetFrameScrollY() + 500) / (s.LineHeight + 3));
int visible_start_addr = DisplayStart * Cols;
int visible_end_addr = DisplayEnd * Cols;
bool data_next = false;
if (ReadOnly || DataEditingAddr >= mem_size)
{
DataEditingAddr = (int)-1;
}
if (DataPreviewAddr >= mem_size)
{
DataPreviewAddr = (int)-1;
}
int preview_data_type_size = OptShowDataPreview ? DataTypeGetSize(PreviewDataType) : 0;
int data_editing_addr_backup = DataEditingAddr;
int data_editing_addr_next = (int)-1;
if (DataEditingAddr != (int)-1)
{
// Move cursor but only apply on next frame so scrolling with be synchronized (because currently we can't change the scrolling while the window is being rendered)
if (IO.IsKeyPressed(LGuiKeys.Up) && DataEditingAddr >= (int)Cols)
{
data_editing_addr_next = DataEditingAddr - Cols; DataEditingTakeFocus = true;
}
else if (IO.IsKeyPressed(LGuiKeys.Down) && DataEditingAddr < mem_size - Cols)
{
data_editing_addr_next = DataEditingAddr + Cols; DataEditingTakeFocus = true;
}
else if (IO.IsKeyPressed(LGuiKeys.Left) && DataEditingAddr > 0)
{
data_editing_addr_next = DataEditingAddr - 1; DataEditingTakeFocus = true;
}
else if (IO.IsKeyPressed(LGuiKeys.Right) && DataEditingAddr < mem_size - 1)
{
data_editing_addr_next = DataEditingAddr + 1; DataEditingTakeFocus = true;
}
}
if (data_editing_addr_next != (int)-1 && (data_editing_addr_next / Cols) != (data_editing_addr_backup / Cols))
{
// Track cursor movements
int scroll_offset = ((int)(data_editing_addr_next / Cols) - (int)(data_editing_addr_backup / Cols));
bool scroll_desired = (scroll_offset < 0 && data_editing_addr_next < visible_start_addr + Cols * 2) || (scroll_offset > 0 && data_editing_addr_next > visible_end_addr - Cols * 2);
if (scroll_desired)
{
LGui.SetFrameScrollY(LGui.GetFrameScrollY() + scroll_offset * (s.LineHeight + 3));
}
}
// Draw vertical separator
LGuiVec2 window_pos = new LGuiVec2(5, 5);
if (OptShowAscii)
{
CmdList.DrawLine(
new LGuiVec2(window_pos.X + s.PosAsciiStart - s.GlyphWidth, window_pos.Y),
new LGuiVec2(window_pos.X + s.PosAsciiStart - s.GlyphWidth, window_pos.Y + 9999),
new LGuiColor(0.43f, 0.43f, 0.50f, 0.50f));
}
var color_text = new LGuiColor(1.00f, 1.00f, 1.00f, 1.00f);
var color_disabled = OptGreyOutZeroes ? new LGuiColor(0.50f, 0.50f, 0.50f, 1.00f) : color_text;
var format_address = OptUpperCaseHex ? "{0:X4}: " : "{0:X4}: ";
var format_data = OptUpperCaseHex ? "{0:X4}: " : "{0:X4}: ";
var format_range = OptUpperCaseHex ? "Range {0:X4}..{1:X4}" : "Range {0:X4}..{1:X4}";
var format_byte = OptUpperCaseHex ? "{0:X2}" : "{0:X2}";
var format_byte_space = OptUpperCaseHex ? "{0:X2}" : "{0:X2}";
for (int line_i = 0; line_i < mem_size / Cols; ++line_i)
{
int addr = (int)(line_i * Cols);
LGui.Text(format_address, base_display_addr + addr);
for (int n = 0; n < Cols && addr < mem_size; ++n, ++addr)
{
LGui.PushID(addr);
float byte_pos_x = s.PosHexStart + s.HexCellWidth * n;
if (OptMidColsCount > 0)
{
byte_pos_x += (n / OptMidColsCount) * s.SpacingBetweenMidCols;
}
LGui.SameLine(byte_pos_x);
// Draw highlight
bool is_highlight_from_user_range = (addr >= HighlightMin && addr < HighlightMax);
bool is_highlight_from_preview = (addr >= DataPreviewAddr && addr < DataPreviewAddr + preview_data_type_size);
if (is_highlight_from_user_range || is_highlight_from_preview)
{
var pos = LGui.GetCursorPos();
float highlight_width = s.GlyphWidth * 2;
bool is_next_byte_highlighted = (addr + 1 < mem_size) && ((HighlightMax != (int)-1 && addr + 1 < HighlightMax));
if (is_next_byte_highlighted || (n + 1 == Cols))
{
highlight_width = s.HexCellWidth;
if (OptMidColsCount > 0 && n > 0 && (n + 1) < Cols && ((n + 1) % OptMidColsCount) == 0)
{
highlight_width += s.SpacingBetweenMidCols;
}
}
CmdList.DrawRect(new LGuiRect(pos, new LGuiVec2(highlight_width, s.LineHeight)), HighlightColor, true, false);
}
if (DataEditingAddr == addr)
{// Display text input on current byte
bool data_write = false;
if (DataEditingTakeFocus)
{
AddrInputBuf = string.Format(format_data, s.AddrDigitsCount, base_display_addr + addr);
DataInputBuf = string.Format(format_byte, mem_data[addr]);
}
var itemwidth = s.GlyphWidth * 2;
/*struct UserData
* {
* // FIXME: We should have a way to retrieve the text edit cursor position more easily in the API, this is rather tedious. This is such a ugly mess we may be better off not using InputText() at all here.
* static int Callback(ImGuiInputTextCallbackData* data)
* {
* UserData* user_data = (UserData*)data->UserData;
* if (!data->HasSelection())
* user_data->CursorPos = data->CursorPos;
* if (data->SelectionStart == 0 && data->SelectionEnd == data->BufTextLen)
* {
* // When not editing a byte, always rewrite its content (this is a bit tricky, since InputText technically "owns" the master copy of the buffer we edit it in there)
* data->DeleteChars(0, data->BufTextLen);
* data->InsertChars(0, user_data->CurrentBufOverwrite);
* data->SelectionStart = 0;
* data->SelectionEnd = data->CursorPos = 2;
* }
* return 0;
* }
* char CurrentBufOverwrite[3]; // Input
* int CursorPos; // Output
* };
* UserData user_data;
* user_data.CursorPos = -1;
* sprintf(user_data.CurrentBufOverwrite, format_byte, ReadFn? ReadFn(mem_data, addr) : mem_data[addr]);
* ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoHorizontalScroll | ImGuiInputTextFlags_AlwaysInsertMode | ImGuiInputTextFlags_CallbackAlways;
* if (ImGui::InputText("##data", DataInputBuf, 32, flags, UserData::Callback, &user_data))
* data_write = data_next = true;
* else if (!DataEditingTakeFocus && !ImGui::IsItemActive())
* DataEditingAddr = data_editing_addr_next = (size_t)-1;
* DataEditingTakeFocus = false;
* if (user_data.CursorPos >= 2)
* data_write = data_next = true;
* if (data_editing_addr_next != (size_t)-1)
* data_write = data_next = false;
* int data_input_value;
* if (data_write && sscanf(DataInputBuf, "%X", &data_input_value) == 1)
* {
* if (WriteFn)
* WriteFn(mem_data, addr, (u8) data_input_value);
* else
* mem_data[addr] = (u8) data_input_value;
* }*/
var Flags = LGuiInputTextFlags.CharsHexadecimal | /*LGuiInputTextFlags.AutoSelectAll |*/
LGuiInputTextFlags.InsertMode | LGuiInputTextFlags.EnterReturnsTrue;
if (LGui.InputText("##data", ref DataInputBuf, 2,
new LGuiVec2(itemwidth + 5, LGuiFont.Default.FontHeight + 2), Flags))
{
data_write = data_next = true;
}
else if (!DataEditingTakeFocus && !LGui.PreviousControlIsActive())
{
DataEditingAddr = data_editing_addr_next = (int)-1;
}
//LGui.PreviousControlFocus();
int data_input_value;
if (data_write && int.TryParse(DataInputBuf, NumberStyles.HexNumber, null, out data_input_value))
{
mem_data[addr] = (byte)data_input_value;
}
}
else
{
byte b = mem_data[addr];
if (OptShowHexII)
{
if ((b >= 32 && b < 128))
{
LGui.Text(".{0}", (char)b);
}
else if (b == 0xFF && OptGreyOutZeroes)
{
LGui.Text(color_disabled, "##");
}
else if (b == 0x00)
{
LGui.Text(" ");
}
else
{
LGui.Text(format_byte_space, b);
}
}
else
{
if (b == 0 && OptGreyOutZeroes)
{
LGui.Text(color_disabled, "00");
}
else
{
LGui.Text(format_byte_space, b);
}
}
if (!ReadOnly && LGui.PreviousControlIsHovered() && IO.IsMouseClick(LGuiMouseButtons.Left))
{
DataEditingTakeFocus = true;
data_editing_addr_next = addr;
}
}
LGui.PopID();
}
if (OptShowAscii)
{
// Draw ASCII values
LGui.SameLine(s.PosAsciiStart);
var pos = LGui.GetCursorPos();
addr = line_i * Cols;
LGui.PushID(line_i);
if (LGui.InvisibleButton("ascii", new LGuiVec2(s.PosAsciiEnd - s.PosAsciiStart, s.LineHeight)))
{
DataEditingAddr = DataPreviewAddr = addr + (int)((LGui.GetIO().MousePos.X - pos.X) / s.GlyphWidth);
DataEditingTakeFocus = true;
}
LGui.PopID();
for (int n = 0; n < Cols && addr < mem_size; n++, addr++)
{
if (addr == DataEditingAddr)
{
CmdList.DrawRect(new LGuiRect(pos, new LGuiVec2(s.GlyphWidth, s.LineHeight)), new LGuiColor(0.16f, 0.29f, 0.48f, 0.54f), true, false);
CmdList.DrawRect(new LGuiRect(pos, new LGuiVec2(s.GlyphWidth, s.LineHeight)), new LGuiColor(0.26f, 0.59f, 0.98f, 0.35f), true, false);
}
byte c = mem_data[addr];
char display_c = (c < 32 || c >= 128) ? '.' : (char)c;
LGui.SameLine(pos.X);
LGui.Text((display_c == '.') ? color_disabled : color_text, "{0}", display_c.ToString());
//LGuiGraphics.DrawText(display_c.ToString(), pos, new LGuiTextStyle(LGuiFontStyle.Default, (display_c == '.') ? color_disabled : color_text));
pos.X += s.GlyphWidth;
}
}
}
if (data_next && DataEditingAddr < mem_size)
{
DataEditingAddr = DataPreviewAddr = DataEditingAddr + 1;
DataEditingTakeFocus = true;
}
else if (data_editing_addr_next != (int)-1)
{
DataEditingAddr = DataPreviewAddr = data_editing_addr_next;
}
LGui.AddCommandList(CmdList);
/*for (int line_i = clipper.DisplayStart; line_i < clipper.DisplayEnd; line_i++) // display only visible lines
* {
* int addr = (int)(line_i * Cols);
*
* LGui.Text(format_address, base_display_addr + addr);
*
* // Draw Hexadecimal
* for (int n = 0; n < Cols && addr < mem_size; n++, addr++)
* {
* float byte_pos_x = s.PosHexStart + s.HexCellWidth * n;
* if (OptMidColsCount > 0)
* byte_pos_x += (n / OptMidColsCount) * s.SpacingBetweenMidCols;
* ImGui::SameLine(byte_pos_x);
*
* // Draw highlight
* bool is_highlight_from_user_range = (addr >= HighlightMin && addr < HighlightMax);
* bool is_highlight_from_user_func = (HighlightFn && HighlightFn(mem_data, addr));
* bool is_highlight_from_preview = (addr >= DataPreviewAddr && addr < DataPreviewAddr + preview_data_type_size);
* if (is_highlight_from_user_range || is_highlight_from_user_func || is_highlight_from_preview)
* {
* ImVec2 pos = ImGui::GetCursorScreenPos();
* float highlight_width = s.GlyphWidth * 2;
* bool is_next_byte_highlighted = (addr + 1 < mem_size) && ((HighlightMax != (size_t) - 1 && addr + 1 < HighlightMax) || (HighlightFn && HighlightFn(mem_data, addr + 1)));
* if (is_next_byte_highlighted || (n + 1 == Cols))
* {
* highlight_width = s.HexCellWidth;
* if (OptMidColsCount > 0 && n > 0 && (n + 1) < Cols && ((n + 1) % OptMidColsCount) == 0)
* highlight_width += s.SpacingBetweenMidCols;
* }
* draw_list->AddRectFilled(pos, ImVec2(pos.x + highlight_width, pos.y + s.LineHeight), HighlightColor);
* }
*
* if (DataEditingAddr == addr)
* {
* // Display text input on current byte
* bool data_write = false;
* ImGui::PushID((void*)addr);
* if (DataEditingTakeFocus)
* {
* ImGui::SetKeyboardFocusHere();
* ImGui::CaptureKeyboardFromApp(true);
* sprintf(AddrInputBuf, format_data, s.AddrDigitsCount, base_display_addr + addr);
* sprintf(DataInputBuf, format_byte, ReadFn ? ReadFn(mem_data, addr) : mem_data[addr]);
* }
* ImGui::PushItemWidth(s.GlyphWidth * 2);
* struct UserData
* {
* // FIXME: We should have a way to retrieve the text edit cursor position more easily in the API, this is rather tedious. This is such a ugly mess we may be better off not using InputText() at all here.
* static int Callback(ImGuiInputTextCallbackData* data)
* {
* UserData* user_data = (UserData*)data->UserData;
* if (!data->HasSelection())
* user_data->CursorPos = data->CursorPos;
* if (data->SelectionStart == 0 && data->SelectionEnd == data->BufTextLen)
* {
* // When not editing a byte, always rewrite its content (this is a bit tricky, since InputText technically "owns" the master copy of the buffer we edit it in there)
* data->DeleteChars(0, data->BufTextLen);
* data->InsertChars(0, user_data->CurrentBufOverwrite);
* data->SelectionStart = 0;
* data->SelectionEnd = data->CursorPos = 2;
* }
* return 0;
* }
* char CurrentBufOverwrite[3]; // Input
* int CursorPos; // Output
* };
* UserData user_data;
* user_data.CursorPos = -1;
* sprintf(user_data.CurrentBufOverwrite, format_byte, ReadFn? ReadFn(mem_data, addr) : mem_data[addr]);
* ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoHorizontalScroll | ImGuiInputTextFlags_AlwaysInsertMode | ImGuiInputTextFlags_CallbackAlways;
* if (ImGui::InputText("##data", DataInputBuf, 32, flags, UserData::Callback, &user_data))
* data_write = data_next = true;
* else if (!DataEditingTakeFocus && !ImGui::IsItemActive())
* DataEditingAddr = data_editing_addr_next = (size_t)-1;
* DataEditingTakeFocus = false;
* ImGui::PopItemWidth();
* if (user_data.CursorPos >= 2)
* data_write = data_next = true;
* if (data_editing_addr_next != (size_t)-1)
* data_write = data_next = false;
* int data_input_value;
* if (data_write && sscanf(DataInputBuf, "%X", &data_input_value) == 1)
* {
* if (WriteFn)
* WriteFn(mem_data, addr, (u8) data_input_value);
* else
* mem_data[addr] = (u8) data_input_value;
* }
* ImGui::PopID();
* }
* else
* {
* // NB: The trailing space is not visible but ensure there's no gap that the mouse cannot click on.
* u8 b = ReadFn ? ReadFn(mem_data, addr) : mem_data[addr];
*
* if (OptShowHexII)
* {
* if ((b >= 32 && b< 128))
* ImGui::Text(".%c ", b);
* else if (b == 0xFF && OptGreyOutZeroes)
* ImGui::TextDisabled("## ");
* else if (b == 0x00)
* ImGui::Text(" ");
* else
* ImGui::Text(format_byte_space, b);
* }
* else
* {
* if (b == 0 && OptGreyOutZeroes)
* ImGui::TextDisabled("00 ");
* else
* ImGui::Text(format_byte_space, b);
* }
* if (!ReadOnly && ImGui::IsItemHovered() && ImGui::IsMouseClicked(0))
* {
* DataEditingTakeFocus = true;
* data_editing_addr_next = addr;
* }
* }
* }
*
* if (OptShowAscii)
* {
* // Draw ASCII values
* ImGui::SameLine(s.PosAsciiStart);
* ImVec2 pos = ImGui::GetCursorScreenPos();
* addr = line_i* Cols;
* ImGui::PushID(line_i);
* if (ImGui::InvisibleButton("ascii", ImVec2(s.PosAsciiEnd - s.PosAsciiStart, s.LineHeight)))
* {
* DataEditingAddr = DataPreviewAddr = addr + (size_t) ((ImGui::GetIO().MousePos.x - pos.x) / s.GlyphWidth);
* DataEditingTakeFocus = true;
* }
* ImGui::PopID();
* for (int n = 0; n<Cols && addr<mem_size; n++, addr++)
* {
* if (addr == DataEditingAddr)
* {
* draw_list->AddRectFilled(pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight), ImGui::GetColorU32(ImGuiCol_FrameBg));
* draw_list->AddRectFilled(pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight), ImGui::GetColorU32(ImGuiCol_TextSelectedBg));
* }
* unsigned char c = ReadFn ? ReadFn(mem_data, addr) : mem_data[addr];
* char display_c = (c < 32 || c >= 128) ? '.' : c;
* draw_list->AddText(pos, (display_c == '.') ? color_disabled : color_text, &display_c, &display_c + 1);
* pos.x += s.GlyphWidth;
* }
* }
* }
* clipper.End();
* ImGui::PopStyleVar(2);
* ImGui::EndChild();
*
* if (data_next && DataEditingAddr<mem_size)
* {
* DataEditingAddr = DataPreviewAddr = DataEditingAddr + 1;
* DataEditingTakeFocus = true;
* }
* else if (data_editing_addr_next != (size_t)-1)
* {
* DataEditingAddr = DataPreviewAddr = data_editing_addr_next;
* }
*
* bool next_show_data_preview = OptShowDataPreview;
* if (OptShowOptions)
* {
* ImGui::Separator();
*
* // Options menu
*
* if (ImGui::Button("Options"))
* ImGui::OpenPopup("context");
* if (ImGui::BeginPopup("context"))
* {
* ImGui::PushItemWidth(56);
* if (ImGui::DragInt("##cols", &Cols, 0.2f, 4, 32, "%d cols")) { ContentsWidthChanged = true; }
* ImGui::PopItemWidth();
* ImGui::Checkbox("Show Data Preview", &next_show_data_preview);
* ImGui::Checkbox("Show HexII", &OptShowHexII);
* if (ImGui::Checkbox("Show Ascii", &OptShowAscii)) { ContentsWidthChanged = true; }
* ImGui::Checkbox("Grey out zeroes", &OptGreyOutZeroes);
* ImGui::Checkbox("Uppercase Hex", &OptUpperCaseHex);
*
* ImGui::EndPopup();
* }
*
* ImGui::SameLine();
* ImGui::Text(format_range, s.AddrDigitsCount, base_display_addr, s.AddrDigitsCount, base_display_addr + mem_size - 1);
* ImGui::SameLine();
* ImGui::PushItemWidth((s.AddrDigitsCount + 1) * s.GlyphWidth + style.FramePadding.x* 2.0f);
* if (ImGui::InputText("##addr", AddrInputBuf, 32, ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_EnterReturnsTrue))
* {
* size_t goto_addr;
* if (sscanf(AddrInputBuf, "%" _PRISizeT "X", &goto_addr) == 1)
* {
* GotoAddr = goto_addr - base_display_addr;
* HighlightMin = 3 = (size_t)-1;
* }
* }
* ImGui::PopItemWidth();
*
* if (GotoAddr != (size_t)-1)
* {
* if (GotoAddr<mem_size)
* {
* ImGui::BeginChild("##scrolling");
* ImGui::SetScrollFromPosY(ImGui::GetCursorStartPos().y + (GotoAddr / Cols) * ImGui::GetTextLineHeight());
* ImGui::EndChild();
* DataEditingAddr = DataPreviewAddr = GotoAddr;
* DataEditingTakeFocus = true;
* }
* GotoAddr = (size_t)-1;
* }
* }
*
* if (OptShowDataPreview)
* {
* ImGui::Separator();
* ImGui::AlignTextToFramePadding();
* ImGui::Text("Preview as:");
* ImGui::SameLine();
* ImGui::PushItemWidth((s.GlyphWidth* 10.0f) + style.FramePadding.x* 2.0f + style.ItemInnerSpacing.x);
* if (ImGui::BeginCombo("##combo_type", DataTypeGetDesc(PreviewDataType), ImGuiComboFlags_HeightLargest))
* {
* for (int n = 0; n<DataType_COUNT; n++)
* if (ImGui::Selectable(DataTypeGetDesc((DataType) n), PreviewDataType == n))
* PreviewDataType = (DataType) n;
* ImGui::EndCombo();
* }
* ImGui::PopItemWidth();
* ImGui::SameLine();
* ImGui::PushItemWidth((s.GlyphWidth* 6.0f) + style.FramePadding.x* 2.0f + style.ItemInnerSpacing.x);
* ImGui::Combo("##combo_endianess", &PreviewEndianess, "LE\0BE\0\0");
* ImGui::PopItemWidth();
*
* char buf[128];
* float x = s.GlyphWidth * 6.0f;
* bool has_value = DataPreviewAddr != (size_t) - 1;
* if (has_value)
* DisplayPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType, DataFormat_Dec, buf, (size_t) IM_ARRAYSIZE(buf));
* ImGui::Text("Dec"); ImGui::SameLine(x); ImGui::TextUnformatted(has_value? buf : "N/A");
* if (has_value)
* DisplayPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType, DataFormat_Hex, buf, (size_t) IM_ARRAYSIZE(buf));
* ImGui::Text("Hex"); ImGui::SameLine(x); ImGui::TextUnformatted(has_value? buf : "N/A");
* if (has_value)
* DisplayPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType, DataFormat_Bin, buf, (size_t) IM_ARRAYSIZE(buf));
* ImGui::Text("Bin"); ImGui::SameLine(x); ImGui::TextUnformatted(has_value? buf : "N/A");
* }
*
* OptShowDataPreview = next_show_data_preview;
*
* // Notify the main window of our ideal child content size (FIXME: we are missing an API to get the contents size from the child)
* ImGui::SetCursorPosX(s.WindowWidth);*/
}