diff options
Diffstat (limited to 'docs/release/src/frontend/mame/ui/about.cpp')
-rw-r--r-- | docs/release/src/frontend/mame/ui/about.cpp | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/docs/release/src/frontend/mame/ui/about.cpp b/docs/release/src/frontend/mame/ui/about.cpp new file mode 100644 index 00000000000..aa7de9671fc --- /dev/null +++ b/docs/release/src/frontend/mame/ui/about.cpp @@ -0,0 +1,266 @@ +// license:BSD-3-Clause +// copyright-holders:Vas Crabb +/*************************************************************************** + + ui/about.cpp + + About box + +***************************************************************************/ + +#include "emu.h" +#include "ui/about.h" + +#include "ui/ui.h" +#include "ui/utils.h" + +#include "mame.h" + +#include <string_view> + + +namespace ui { + +namespace { + +#include "copying.ipp" + +} // anonymous namespace + + +/************************************************** + ABOUT BOX +**************************************************/ + + +//------------------------------------------------- +// ctor +//------------------------------------------------- + +menu_about::menu_about(mame_ui_manager &mui, render_container &container) + : menu(mui, container) + , m_header{ + util::string_format( +#ifdef MAME_DEBUG + _("%1$s %2$s (%3$s%4$sP%5$s, debug)"), +#else + _("%1$s %2$s (%3$s%4$sP%5$s)"), +#endif + emulator_info::get_appname(), + bare_build_version, + (sizeof(int) == sizeof(void *)) ? "I" : "", + (sizeof(long) == sizeof(void *)) ? "L" : (sizeof(long long) == sizeof(void *)) ? "LL" : "", + sizeof(void *) * 8), + /*util::string_format(_("Revision: %1$s"), bare_vcs_revision)*/" " } // MESSUI +{ +} + + +//------------------------------------------------- +// dtor +//------------------------------------------------- + +menu_about::~menu_about() +{ +} + + +//------------------------------------------------- +// perform our special rendering +//------------------------------------------------- + +void menu_about::custom_render(void *selectedref, float top, float bottom, float origx1, float origy1, float origx2, float origy2) +{ + // draw the title + draw_text_box( + std::begin(m_header), std::end(m_header), + origx1, origx2, origy1 - top, origy1 - ui().box_tb_border(), + text_layout::text_justify::CENTER, text_layout::word_wrapping::TRUNCATE, false, + ui().colors().text_color(), UI_GREEN_COLOR, 1.0f); +} + + +//------------------------------------------------- +// draw - draw about +//------------------------------------------------- + +void menu_about::draw(uint32_t flags) +{ + rgb_t const color = ui().colors().text_color(); + float const aspect = machine().render().ui_aspect(&container()); + float const line_height = ui().get_line_height(); + float const ud_arrow_width = line_height * aspect; + float const gutter_width = 0.52f * line_height * aspect; + float const visible_width = 1.0f - (2.0f * ui().box_lr_border() * aspect); + float const visible_left = (1.0f - visible_width) * 0.5f; + float const extra_height = 2.0f * line_height; + float const visible_extra_menu_height = get_customtop() + get_custombottom() + extra_height; + + // determine effective positions taking into account the hilighting arrows + float const maximum_width = visible_width - 2.0f * gutter_width; + + draw_background(); + map_mouse(); + + // account for extra space at the top and bottom + float visible_main_menu_height = 1.0f - 2.0f * ui().box_tb_border() - visible_extra_menu_height; + m_visible_lines = int(std::trunc(visible_main_menu_height / line_height)); + visible_main_menu_height = float(m_visible_lines) * line_height; + + // compute top/left of inner menu area by centering, if the menu is at the bottom of the extra, adjust + float const visible_top = ((1.0f - (visible_main_menu_height + visible_extra_menu_height)) * 0.5f) + get_customtop(); + + // lay out the text if necessary + if (!m_layout || (m_layout->width() != maximum_width)) + { + m_layout.emplace(ui().create_layout(container(), maximum_width)); + for (char const *const *line = copying_text; *line; ++line) + { + m_layout->add_text(*line, color); + m_layout->add_text("\n", color); + } + } + float const actual_width = m_layout->actual_width(); + + // compute text box size + float const x1 = visible_left + ((maximum_width - actual_width) * 0.5f); + float const y1 = visible_top - ui().box_tb_border(); + float const x2 = visible_left + visible_width - ((maximum_width - actual_width) * 0.5f); + float const y2 = visible_top + visible_main_menu_height + ui().box_tb_border() + extra_height; + float const effective_left = x1 + gutter_width; + float const line_x0 = x1 + 0.5f * UI_LINE_WIDTH; + float const line_x1 = x2 - 0.5f * UI_LINE_WIDTH; + float const separator = visible_top + float(m_visible_lines) * line_height; + + ui().draw_outlined_box(container(), x1, y1, x2, y2, ui().colors().background_color()); + + int const visible_items = m_layout->lines(); + m_visible_lines = (std::min)(visible_items, m_visible_lines); + top_line = (std::max)(0, top_line); + if (top_line + m_visible_lines >= visible_items) + top_line = visible_items - m_visible_lines; + + clear_hover(); + if (top_line) + { + // if we're on the top line, display the up arrow + rgb_t fgcolor = ui().colors().text_color(); + if (mouse_in_rect(line_x0, visible_top, line_x1, visible_top + line_height)) + { + fgcolor = ui().colors().mouseover_color(); + highlight( + line_x0, visible_top, + line_x1, visible_top + line_height, + ui().colors().mouseover_bg_color()); + set_hover(HOVER_ARROW_UP); + } + draw_arrow( + 0.5f * (x1 + x2) - 0.5f * ud_arrow_width, visible_top + 0.25f * line_height, + 0.5f * (x1 + x2) + 0.5f * ud_arrow_width, visible_top + 0.75f * line_height, + fgcolor, ROT0); + } + if ((top_line + m_visible_lines) < visible_items) + { + // if we're on the bottom line, display the down arrow + float const line_y = visible_top + float(m_visible_lines - 1) * line_height; + rgb_t fgcolor = ui().colors().text_color(); + if (mouse_in_rect(line_x0, line_y, line_x1, line_y + line_height)) + { + fgcolor = ui().colors().mouseover_color(); + highlight( + line_x0, line_y, + line_x1, line_y + line_height, + ui().colors().mouseover_bg_color()); + set_hover(HOVER_ARROW_DOWN); + } + draw_arrow( + 0.5f * (x1 + x2) - 0.5f * ud_arrow_width, line_y + 0.25f * line_height, + 0.5f * (x1 + x2) + 0.5f * ud_arrow_width, line_y + 0.75f * line_height, + fgcolor, ROT0 ^ ORIENTATION_FLIP_Y); + } + + // return the number of visible lines, minus 1 for top arrow and 1 for bottom arrow + m_visible_items = m_visible_lines - (top_line ? 1 : 0) - (top_line + m_visible_lines != visible_items); + m_layout->emit( + container(), + top_line ? (top_line + 1) : 0, m_visible_items, + effective_left, visible_top + (top_line ? line_height : 0.0f)); + + // add visual separator before the "return to prevous menu" item + container().add_line( + x1, separator + (0.5f * line_height), + x2, separator + (0.5f * line_height), + UI_LINE_WIDTH, ui().colors().text_color(), PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA)); + + menu_item const &pitem = item(0); + std::string_view const itemtext = pitem.text; + float const line_y0 = separator + line_height; + float const line_y1 = line_y0 + line_height; + + if (mouse_in_rect(line_x0, line_y0, line_x1, line_y1) && is_selectable(pitem)) + set_hover(0); + + highlight(line_x0, line_y0, line_x1, line_y1, ui().colors().selected_bg_color()); + ui().draw_text_full( + container(), itemtext, + effective_left, line_y0, actual_width, + text_layout::text_justify::CENTER, text_layout::word_wrapping::TRUNCATE, + mame_ui_manager::NORMAL, + ui().colors().selected_color(), ui().colors().selected_bg_color(), + nullptr, nullptr); + + // if there is something special to add, do it by calling the virtual method + custom_render(get_selection_ref(), get_customtop(), get_custombottom(), x1, y1, x2, y2); +} + + +//------------------------------------------------- +// populate - populates the about modal +//------------------------------------------------- + +void menu_about::populate(float &customtop, float &custombottom) +{ + // make space for the title and revision + customtop = (ui().get_line_height() * m_header.size()) + (ui().box_tb_border() * 3.0f); +} + + +//------------------------------------------------- +// handle - manages inputs in the about modal +//------------------------------------------------- + +void menu_about::handle() +{ + const event *event = process(PROCESS_CUSTOM_NAV); + if (event) + { + switch (event->iptkey) + { + case IPT_UI_UP: + --top_line; + break; + + case IPT_UI_DOWN: + ++top_line; + break; + + case IPT_UI_PAGE_UP: + top_line -= m_visible_lines - 3; + break; + + case IPT_UI_PAGE_DOWN: + top_line += m_visible_lines - 3; + break; + + case IPT_UI_HOME: + top_line = 0; + break; + + case IPT_UI_END: + top_line = m_layout->lines() - m_visible_lines; + break; + } + } +} + +}; |