// license:BSD-3-Clause // copyright-holders:Aaron Giles /********************************************************************* dvtext.c Debugger simple text-based views. ***************************************************************************/ #include "emu.h" #include "debugvw.h" #include "dvtext.h" #include "debugcon.h" #include "debugger.h" //************************************************************************** // DEBUG VIEW TEXTBUF //************************************************************************** //------------------------------------------------- // debug_view_textbuf - constructor //------------------------------------------------- debug_view_textbuf::debug_view_textbuf(running_machine &machine, debug_view_type type, debug_view_osd_update_func osdupdate, void *osdprivate, text_buffer &textbuf) : debug_view(machine, type, osdupdate, osdprivate), m_textbuf(textbuf), m_at_bottom(true), m_topseq(0) { } //------------------------------------------------- // ~debug_view_textbuf - destructor //------------------------------------------------- debug_view_textbuf::~debug_view_textbuf() { } //------------------------------------------------- // view_update - update a text buffer-based view //------------------------------------------------- void debug_view_textbuf::view_update() { // update the console info m_total.x = text_buffer_max_width(&m_textbuf); m_total.y = text_buffer_num_lines(&m_textbuf); if (m_total.x < 80) m_total.x = 80; // determine the starting sequence number UINT32 curseq = 0; if (!m_at_bottom) { curseq = m_topseq; if (!text_buffer_get_seqnum_line(&m_textbuf, curseq)) m_at_bottom = true; } if (m_at_bottom) { curseq = text_buffer_line_index_to_seqnum(&m_textbuf, m_total.y - 1); if (m_total.y < m_visible.y) curseq -= m_total.y - 1; else curseq -= m_visible.y - 1; } m_topleft.y = curseq - text_buffer_line_index_to_seqnum(&m_textbuf, 0); // loop over visible rows debug_view_char *dest = &m_viewdata[0]; for (UINT32 row = 0; row < m_visible.y; row++) { const char *line = text_buffer_get_seqnum_line(&m_textbuf, curseq++); UINT32 col = 0; // if this visible row is valid, add it to the buffer if (line != nullptr) { size_t len = strlen(line); UINT32 effcol = m_topleft.x; // copy data while (col < m_visible.x && effcol < len) { dest->byte = line[effcol++]; dest->attrib = DCA_NORMAL; dest++; col++; } } // fill the rest with blanks while (col < m_visible.x) { dest->byte = ' '; dest->attrib = DCA_NORMAL; dest++; col++; } } } //------------------------------------------------- // view_notify - handle notification of updates // to visible area //------------------------------------------------- void debug_view_textbuf::view_notify(debug_view_notification type) { if (type == VIEW_NOTIFY_VISIBLE_CHANGED) { // if the bottom line is visible, just track the bottom m_at_bottom = (m_total.y >= m_topleft.y && m_total.y <= m_topleft.y + m_visible.y); /* otherwise, track the seqence number of the top line */ if (!m_at_bottom) m_topseq = text_buffer_line_index_to_seqnum(&m_textbuf, m_topleft.y); } } //************************************************************************** // DEBUG VIEW CONSOLE //************************************************************************** //------------------------------------------------- // debug_view_console - constructor //------------------------------------------------- debug_view_console::debug_view_console(running_machine &machine, debug_view_osd_update_func osdupdate, void *osdprivate) : debug_view_textbuf(machine, DVT_CONSOLE, osdupdate, osdprivate, *machine.debugger().console().get_console_textbuf()) { } //************************************************************************** // DEBUG VIEW LOG //************************************************************************** //------------------------------------------------- // debug_view_log - constructor //------------------------------------------------- debug_view_log::debug_view_log(running_machine &machine, debug_view_osd_update_func osdupdate, void *osdprivate) : debug_view_textbuf(machine, DVT_LOG, osdupdate, osdprivate, *machine.debugger().console().get_errorlog_textbuf()) { }