Method render

source/imgui_code_editor.cpp:102–693

}

void reshade::imgui::code_editor::render(const char *title, const uint32_t palette[color_palette_max], bool border, ImFont *font, float font_size)
{
	// There should always at least be a single line with a new line character
	assert(!_lines.empty());

	// Get all the style values here, before they are overwritten via 'ImGui::PushStyleVar'
	const float button_size = ImGui::GetFrameHeight();
	const float bottom_height = ImGui::GetFrameHeightWithSpacing() + ImGui::GetStyle().ItemSpacing.y;
	const float button_spacing = ImGui::GetStyle().ItemInnerSpacing.x;

	ImGui::PushFont(font, font_size);
	ImGui::PushStyleColor(ImGuiCol_ChildBg, ImGui::ColorConvertU32ToFloat4(palette[color_background]));
	ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, 0.0f));

	ImGuiIO &io = ImGui::GetIO();
	const bool ctrl = io.KeyCtrl, shift = io.KeyShift, alt = io.KeyAlt;

	const bool open_search_window = ctrl && !shift && !alt && (ImGui::IsKeyPressed(ImGuiKey_F) || ImGui::IsKeyPressed(ImGuiKey_H));
	if (open_search_window)
	{
		// Copy currently selected text into search box
		if (_select_beg != _select_end)
			_search_text[get_selected_text().copy(_search_text, sizeof(_search_text) - 1)] = '\0';

		_search_window_open = ImGui::IsKeyPressed(ImGuiKey_H) && !_readonly ? 2 /* search + replace */ : 1 /* search */;
	}
	else if (_search_window_open < 0)
	{
		_search_window_open = 0;
		ImGui::SetNextWindowFocus();
	}

	ImGui::BeginChild(title, ImVec2(0, _search_window_open * -bottom_height), border ? ImGuiChildFlags_Borders : ImGuiChildFlags_None, ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoNavInputs);

	char buf[128] = "", *buf_end = buf;

	// Deduce text start offset by evaluating maximum number of lines plus two spaces as text width
	std::snprintf(buf, 16, " %zu ", _lines.size());
	const float text_start = calc_text_size(buf).x + _left_margin;
	const float space_size = calc_text_size(" ").x;
	// The following holds the approximate width and height of a default character for offset calculation
	const ImVec2 char_advance = ImVec2(space_size, ImGui::GetTextLineHeightWithSpacing() * _line_spacing);

	_cursor_anim += io.DeltaTime;

	// Handle keyboard input
	if (ImGui::IsWindowFocused())
	{
		if (ImGui::IsWindowHovered())
			ImGui::SetMouseCursor(ImGuiMouseCursor_TextInput);

		io.WantTextInput = true;
		io.WantCaptureKeyboard = true;

		if (ImGui::IsKeyPressed(ImGuiKey_Escape))
			ImGui::SetWindowFocus(nullptr); // Reset window focus
		else if (ctrl && !shift && !alt && ImGui::IsKeyPressed(ImGuiKey_Z))
			undo();