diff options
Diffstat (limited to 'trunk/src/emu/uimenu.c')
-rw-r--r-- | trunk/src/emu/uimenu.c | 1113 |
1 files changed, 1113 insertions, 0 deletions
diff --git a/trunk/src/emu/uimenu.c b/trunk/src/emu/uimenu.c new file mode 100644 index 00000000000..a70a4303cbb --- /dev/null +++ b/trunk/src/emu/uimenu.c @@ -0,0 +1,1113 @@ +/********************************************************************* + + uimenu.c + + Internal MAME menus for the user interface. + + Copyright Nicola Salmoria and the MAME Team. + Visit http://mamedev.org for licensing and usage restrictions. + +*********************************************************************/ + +#include "emu.h" +#include "emuopts.h" +#include "ui.h" +#include "rendutil.h" +#include "uiinput.h" +#include "cheat.h" +#include "uimain.h" +#include <ctype.h> + + + +/*************************************************************************** + CONSTANTS +***************************************************************************/ + +#define UI_MENU_POOL_SIZE 65536 +#define UI_MENU_ALLOC_ITEMS 256 + +/*************************************************************************** + GLOBAL VARIABLES +***************************************************************************/ + +ui_menu *ui_menu::menu_stack; +ui_menu *ui_menu::menu_free; +bitmap_rgb32 *ui_menu::hilight_bitmap; +render_texture *ui_menu::hilight_texture; +render_texture *ui_menu::arrow_texture; + +/*************************************************************************** + INLINE FUNCTIONS +***************************************************************************/ + +/*------------------------------------------------- + is_selectable - return TRUE if the given + item is selectable +-------------------------------------------------*/ + +inline bool ui_menu_item::is_selectable() const +{ + return ((flags & (MENU_FLAG_MULTILINE | MENU_FLAG_DISABLE)) == 0 && strcmp(text, MENU_SEPARATOR_ITEM) != 0); +} + + +/*------------------------------------------------- + exclusive_input_pressed - return TRUE if the + given key is pressed and we haven't already + reported a key +-------------------------------------------------*/ + +inline bool ui_menu::exclusive_input_pressed(int key, int repeat) +{ + if (menu_event.iptkey == IPT_INVALID && ui_input_pressed_repeat(machine(), key, repeat)) + { + menu_event.iptkey = key; + return true; + } + return false; +} + + + +/*************************************************************************** + CORE SYSTEM MANAGEMENT +***************************************************************************/ + +/*------------------------------------------------- + init - initialize the menu system +-------------------------------------------------*/ + +void ui_menu::init(running_machine &machine) +{ + int x; + + /* initialize the menu stack */ + ui_menu::stack_reset(machine); + + /* create a texture for hilighting items */ + hilight_bitmap = auto_bitmap_rgb32_alloc(machine, 256, 1); + for (x = 0; x < 256; x++) + { + int alpha = 0xff; + if (x < 25) alpha = 0xff * x / 25; + if (x > 256 - 25) alpha = 0xff * (255 - x) / 25; + hilight_bitmap->pix32(0, x) = MAKE_ARGB(alpha,0xff,0xff,0xff); + } + hilight_texture = machine.render().texture_alloc(); + hilight_texture->set_bitmap(*hilight_bitmap, hilight_bitmap->cliprect(), TEXFORMAT_ARGB32); + + /* create a texture for arrow icons */ + arrow_texture = machine.render().texture_alloc(render_triangle); + + /* add an exit callback to free memory */ + machine.add_notifier(MACHINE_NOTIFY_EXIT, machine_notify_delegate(FUNC(ui_menu::exit), &machine)); +} + + +/*------------------------------------------------- + exit - clean up after ourselves +-------------------------------------------------*/ + +void ui_menu::exit(running_machine &machine) +{ + /* free menus */ + ui_menu::stack_reset(machine); + ui_menu::clear_free_list(machine); + + /* free textures */ + machine.render().texture_free(hilight_texture); + machine.render().texture_free(arrow_texture); +} + + + +/*************************************************************************** + CORE MENU MANAGEMENT +***************************************************************************/ + +/*------------------------------------------------- + ui_menu - menu constructor +-------------------------------------------------*/ +ui_menu::ui_menu(running_machine &machine, render_container *_container) : m_machine(machine) +{ + special_main_menu = false; + container = _container; + + reset(UI_MENU_RESET_SELECT_FIRST); +} + + +/*------------------------------------------------- + ~ui_menu - menu destructor +-------------------------------------------------*/ + +ui_menu::~ui_menu() +{ + /* free the pools */ + while (pool) + { + ui_menu_pool *ppool = pool; + pool = pool->next; + auto_free(machine(), ppool); + } + + /* free the item array */ + if (item) + auto_free(machine(), item); +} + + +/*------------------------------------------------- + reset - free all items in the menu, + and all memory allocated from the memory pool +-------------------------------------------------*/ + +void ui_menu::reset(ui_menu_reset_options options) +{ + /* based on the reset option, set the reset info */ + resetpos = 0; + resetref = NULL; + if (options == UI_MENU_RESET_REMEMBER_POSITION) + resetpos = selected; + else if (options == UI_MENU_RESET_REMEMBER_REF) + resetref = item[selected].ref; + + /* reset all the pools and the numitems back to 0 */ + for (ui_menu_pool *ppool = pool; ppool != NULL; ppool = ppool->next) + ppool->top = (UINT8 *)(ppool + 1); + numitems = 0; + visitems = 0; + selected = 0; + astring backtext; + backtext.printf("Return to %s",emulator_info::get_capstartgamenoun()); + + /* add an item to return */ + if (parent == NULL) + item_append(backtext.cstr(), NULL, 0, NULL); + else if (parent->is_special_main_menu()) + item_append("Exit", NULL, 0, NULL); + else + item_append("Return to Prior Menu", NULL, 0, NULL); +} + + +/*------------------------------------------------- + is_special_main_menu - returns whether the + menu has special needs +-------------------------------------------------*/ +bool ui_menu::is_special_main_menu() const +{ + return special_main_menu; +} + + +/*------------------------------------------------- + set_special_main_menu - set whether the + menu has special needs +-------------------------------------------------*/ +void ui_menu::set_special_main_menu(bool special) +{ + special_main_menu = special; +} + + +/*------------------------------------------------- + populated - returns true if the menu + has any non-default items in it +-------------------------------------------------*/ + +bool ui_menu::populated() +{ + return numitems > 1; +} + + +/*------------------------------------------------- + item_append - append a new item to the + end of the menu +-------------------------------------------------*/ + +void ui_menu::item_append(const char *text, const char *subtext, UINT32 flags, void *ref) +{ + ui_menu_item *pitem; + int index; + + /* only allow multiline as the first item */ + if ((flags & MENU_FLAG_MULTILINE) != 0) + assert(numitems == 1); + + /* only allow a single multi-line item */ + else if (numitems >= 2) + assert((item[0].flags & MENU_FLAG_MULTILINE) == 0); + + /* realloc the item array if necessary */ + if (numitems >= allocitems) + { + int olditems = allocitems; + allocitems += UI_MENU_ALLOC_ITEMS; + ui_menu_item *newitems = auto_alloc_array(machine(), ui_menu_item, allocitems); + for (int itemnum = 0; itemnum < olditems; itemnum++) + newitems[itemnum] = item[itemnum]; + auto_free(machine(), item); + item = newitems; + } + index = numitems++; + + /* copy the previous last item to the next one */ + if (index != 0) + { + index--; + item[index + 1] = item[index]; + } + + /* allocate a new item and populate it */ + pitem = &item[index]; + pitem->text = (text != NULL) ? pool_strdup(text) : NULL; + pitem->subtext = (subtext != NULL) ? pool_strdup(subtext) : NULL; + pitem->flags = flags; + pitem->ref = ref; + + /* update the selection if we need to */ + if (resetpos == index || (resetref != NULL && resetref == ref)) + selected = index; + if (resetpos == numitems - 1) + selected = numitems - 1; +} + + +/*------------------------------------------------- + process - process a menu, drawing it + and returning any interesting events +-------------------------------------------------*/ + +const ui_menu_event *ui_menu::process(UINT32 flags) +{ + /* reset the menu_event */ + menu_event.iptkey = IPT_INVALID; + + /* first make sure our selection is valid */ + validate_selection(1); + + /* draw the menu */ + if (numitems > 1 && (item[0].flags & MENU_FLAG_MULTILINE) != 0) + draw_text_box(); + else + draw(flags & UI_MENU_PROCESS_CUSTOM_ONLY); + + /* process input */ + if (!(flags & UI_MENU_PROCESS_NOKEYS)) + { + /* read events */ + handle_events(); + + /* handle the keys if we don't already have an menu_event */ + if (menu_event.iptkey == IPT_INVALID) + handle_keys(flags); + } + + /* update the selected item in the menu_event */ + if (menu_event.iptkey != IPT_INVALID && selected >= 0 && selected < numitems) + { + menu_event.itemref = item[selected].ref; + return &menu_event; + } + return NULL; +} + + +/*------------------------------------------------- + m_pool_alloc - allocate temporary memory + from the menu's memory pool +-------------------------------------------------*/ + +void *ui_menu::m_pool_alloc(size_t size) +{ + ui_menu_pool *ppool; + + assert(size < UI_MENU_POOL_SIZE); + + /* find a pool with enough room */ + for (ppool = pool; ppool != NULL; ppool = ppool->next) + if (ppool->end - ppool->top >= size) + { + void *result = ppool->top; + ppool->top += size; + return result; + } + + /* allocate a new pool */ + ppool = (ui_menu_pool *)auto_alloc_array_clear(machine(), UINT8, sizeof(*ppool) + UI_MENU_POOL_SIZE); + + /* wire it up */ + ppool->next = pool; + pool = ppool; + ppool->top = (UINT8 *)(ppool + 1); + ppool->end = ppool->top + UI_MENU_POOL_SIZE; + return m_pool_alloc(size); +} + + +/*------------------------------------------------- + pool_strdup - make a temporary string + copy in the menu's memory pool +-------------------------------------------------*/ + +const char *ui_menu::pool_strdup(const char *string) +{ + return strcpy((char *)m_pool_alloc(strlen(string) + 1), string); +} + + +/*------------------------------------------------- + get_selection - retrieves the index + of the currently selected menu item +-------------------------------------------------*/ + +void *ui_menu::get_selection() +{ + return (selected >= 0 && selected < numitems) ? item[selected].ref : NULL; +} + + +/*------------------------------------------------- + set_selection - changes the index + of the currently selected menu item +-------------------------------------------------*/ + +void ui_menu::set_selection(void *selected_itemref) +{ + int itemnum; + + selected = -1; + for (itemnum = 0; itemnum < numitems; itemnum++) + if (item[itemnum].ref == selected_itemref) + { + selected = itemnum; + break; + } +} + + + +/*************************************************************************** + INTERNAL MENU PROCESSING +***************************************************************************/ + +/*------------------------------------------------- + draw - draw a menu +-------------------------------------------------*/ + +void ui_menu::draw(bool customonly) +{ + float line_height = ui_get_line_height(machine()); + float lr_arrow_width = 0.4f * line_height * machine().render().ui_aspect(); + float ud_arrow_width = line_height * machine().render().ui_aspect(); + float gutter_width = lr_arrow_width * 1.3f; + float x1, y1, x2, y2; + + float effective_width, effective_left; + float visible_width, visible_main_menu_height; + float visible_extra_menu_height = 0; + float visible_top, visible_left; + int selected_subitem_too_big = FALSE; + int visible_lines; + int top_line; + int itemnum, linenum; + int mouse_hit, mouse_button; + render_target *mouse_target; + INT32 mouse_target_x, mouse_target_y; + float mouse_x = -1, mouse_y = -1; + + /* compute the width and height of the full menu */ + visible_width = 0; + visible_main_menu_height = 0; + for (itemnum = 0; itemnum < numitems; itemnum++) + { + const ui_menu_item &pitem = item[itemnum]; + float total_width; + + /* compute width of left hand side */ + total_width = gutter_width + ui_get_string_width(machine(), pitem.text) + gutter_width; + + /* add in width of right hand side */ + if (pitem.subtext) + total_width += 2.0f * gutter_width + ui_get_string_width(machine(), pitem.subtext); + + /* track the maximum */ + if (total_width > visible_width) + visible_width = total_width; + + /* track the height as well */ + visible_main_menu_height += line_height; + } + + /* account for extra space at the top and bottom */ + visible_extra_menu_height = customtop + custombottom; + + /* add a little bit of slop for rounding */ + visible_width += 0.01f; + visible_main_menu_height += 0.01f; + + /* if we are too wide or too tall, clamp it down */ + if (visible_width + 2.0f * UI_BOX_LR_BORDER > 1.0f) + visible_width = 1.0f - 2.0f * UI_BOX_LR_BORDER; + + /* if the menu and extra menu won't fit, take away part of the regular menu, it will scroll */ + if (visible_main_menu_height + visible_extra_menu_height + 2.0f * UI_BOX_TB_BORDER > 1.0f) + visible_main_menu_height = 1.0f - 2.0f * UI_BOX_TB_BORDER - visible_extra_menu_height; + + visible_lines = floor(visible_main_menu_height / line_height); + visible_main_menu_height = (float)visible_lines * line_height; + + /* compute top/left of inner menu area by centering */ + visible_left = (1.0f - visible_width) * 0.5f; + visible_top = (1.0f - (visible_main_menu_height + visible_extra_menu_height)) * 0.5f; + + /* if the menu is at the bottom of the extra, adjust */ + visible_top += customtop; + + /* first add us a box */ + x1 = visible_left - UI_BOX_LR_BORDER; + y1 = visible_top - UI_BOX_TB_BORDER; + x2 = visible_left + visible_width + UI_BOX_LR_BORDER; + y2 = visible_top + visible_main_menu_height + UI_BOX_TB_BORDER; + if (!customonly) + ui_draw_outlined_box(container, x1, y1, x2, y2, UI_BACKGROUND_COLOR); + + /* determine the first visible line based on the current selection */ + top_line = selected - visible_lines / 2; + if (top_line < 0) + top_line = 0; + if (top_line + visible_lines >= numitems) + top_line = numitems - visible_lines; + + /* determine effective positions taking into account the hilighting arrows */ + effective_width = visible_width - 2.0f * gutter_width; + effective_left = visible_left + gutter_width; + + /* locate mouse */ + mouse_hit = FALSE; + mouse_button = FALSE; + if (!customonly) + { + mouse_target = ui_input_find_mouse(machine(), &mouse_target_x, &mouse_target_y, &mouse_button); + if (mouse_target != NULL) + if (mouse_target->map_point_container(mouse_target_x, mouse_target_y, *container, mouse_x, mouse_y)) + mouse_hit = TRUE; + } + + /* loop over visible lines */ + hover = numitems + 1; + if (!customonly) + for (linenum = 0; linenum < visible_lines; linenum++) + { + float line_y = visible_top + (float)linenum * line_height; + itemnum = top_line + linenum; + const ui_menu_item &pitem = item[itemnum]; + const char *itemtext = pitem.text; + rgb_t fgcolor = UI_TEXT_COLOR; + rgb_t bgcolor = UI_TEXT_BG_COLOR; + rgb_t fgcolor2 = UI_SUBITEM_COLOR; + rgb_t fgcolor3 = UI_CLONE_COLOR; + float line_x0 = x1 + 0.5f * UI_LINE_WIDTH; + float line_y0 = line_y; + float line_x1 = x2 - 0.5f * UI_LINE_WIDTH; + float line_y1 = line_y + line_height; + + /* set the hover if this is our item */ + if (mouse_hit && line_x0 <= mouse_x && line_x1 > mouse_x && line_y0 <= mouse_y && line_y1 > mouse_y && pitem.is_selectable()) + hover = itemnum; + + /* if we're selected, draw with a different background */ + if (itemnum == selected) + { + fgcolor = UI_SELECTED_COLOR; + bgcolor = UI_SELECTED_BG_COLOR; + fgcolor2 = UI_SELECTED_COLOR; + fgcolor3 = UI_SELECTED_COLOR; + } + + /* else if the mouse is over this item, draw with a different background */ + else if (itemnum == hover) + { + fgcolor = UI_MOUSEOVER_COLOR; + bgcolor = UI_MOUSEOVER_BG_COLOR; + fgcolor2 = UI_MOUSEOVER_COLOR; + fgcolor3 = UI_MOUSEOVER_COLOR; + } + + /* if we have some background hilighting to do, add a quad behind everything else */ + if (bgcolor != UI_TEXT_BG_COLOR) + container->add_quad(line_x0, line_y0, line_x1, line_y1, bgcolor, hilight_texture, + PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA) | PRIMFLAG_TEXWRAP(TRUE)); + + /* if we're on the top line, display the up arrow */ + if (linenum == 0 && top_line != 0) + { + container->add_quad( + 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, + arrow_texture, + PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA) | PRIMFLAG_TEXORIENT(ROT0)); + if (hover == itemnum) + hover = -2; + } + + /* if we're on the bottom line, display the down arrow */ + else if (linenum == visible_lines - 1 && itemnum != numitems - 1) + { + container->add_quad( + 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, + arrow_texture, + PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA) | PRIMFLAG_TEXORIENT(ROT0 ^ ORIENTATION_FLIP_Y)); + if (hover == itemnum) + hover = -1; + } + + /* if we're just a divider, draw a line */ + else if (strcmp(itemtext, MENU_SEPARATOR_ITEM) == 0) + container->add_line(visible_left, line_y + 0.5f * line_height, visible_left + visible_width, line_y + 0.5f * line_height, UI_LINE_WIDTH, UI_BORDER_COLOR, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA)); + + /* if we don't have a subitem, just draw the string centered */ + else if (pitem.subtext == NULL) + ui_draw_text_full(container, itemtext, effective_left, line_y, effective_width, + JUSTIFY_CENTER, WRAP_TRUNCATE, DRAW_NORMAL, fgcolor, bgcolor, NULL, NULL); + + /* otherwise, draw the item on the left and the subitem text on the right */ + else + { + int subitem_invert = pitem.flags & MENU_FLAG_INVERT; + const char *subitem_text = pitem.subtext; + float item_width, subitem_width; + + /* draw the left-side text */ + ui_draw_text_full(container, itemtext, effective_left, line_y, effective_width, + JUSTIFY_LEFT, WRAP_TRUNCATE, DRAW_NORMAL, fgcolor, bgcolor, &item_width, NULL); + + /* give 2 spaces worth of padding */ + item_width += 2.0f * gutter_width; + + /* if the subitem doesn't fit here, display dots */ + if (ui_get_string_width(machine(), subitem_text) > effective_width - item_width) + { + subitem_text = "..."; + if (itemnum == selected) + selected_subitem_too_big = TRUE; + } + + /* draw the subitem right-justified */ + ui_draw_text_full(container, subitem_text, effective_left + item_width, line_y, effective_width - item_width, + JUSTIFY_RIGHT, WRAP_TRUNCATE, DRAW_NORMAL, subitem_invert ? fgcolor3 : fgcolor2, bgcolor, &subitem_width, NULL); + + /* apply arrows */ + if (itemnum == selected && (pitem.flags & MENU_FLAG_LEFT_ARROW)) + { + container->add_quad( + effective_left + effective_width - subitem_width - gutter_width, + line_y + 0.1f * line_height, + effective_left + effective_width - subitem_width - gutter_width + lr_arrow_width, + line_y + 0.9f * line_height, + fgcolor, + arrow_texture, + PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA) | PRIMFLAG_TEXORIENT(ROT90 ^ ORIENTATION_FLIP_X)); + } + if (itemnum == selected && (pitem.flags & MENU_FLAG_RIGHT_ARROW)) + { + container->add_quad( + effective_left + effective_width + gutter_width - lr_arrow_width, + line_y + 0.1f * line_height, + effective_left + effective_width + gutter_width, + line_y + 0.9f * line_height, + fgcolor, + arrow_texture, + PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA) | PRIMFLAG_TEXORIENT(ROT90)); + } + } + } + + /* if the selected subitem is too big, display it in a separate offset box */ + if (selected_subitem_too_big) + { + const ui_menu_item &pitem = item[selected]; + int subitem_invert = pitem.flags & MENU_FLAG_INVERT; + linenum = selected - top_line; + float line_y = visible_top + (float)linenum * line_height; + float target_width, target_height; + float target_x, target_y; + + /* compute the multi-line target width/height */ + ui_draw_text_full(container, pitem.subtext, 0, 0, visible_width * 0.75f, + JUSTIFY_RIGHT, WRAP_WORD, DRAW_NONE, ARGB_WHITE, ARGB_BLACK, &target_width, &target_height); + + /* determine the target location */ + target_x = visible_left + visible_width - target_width - UI_BOX_LR_BORDER; + target_y = line_y + line_height + UI_BOX_TB_BORDER; + if (target_y + target_height + UI_BOX_TB_BORDER > visible_main_menu_height) + target_y = line_y - target_height - UI_BOX_TB_BORDER; + + /* add a box around that */ + ui_draw_outlined_box(container, target_x - UI_BOX_LR_BORDER, + target_y - UI_BOX_TB_BORDER, + target_x + target_width + UI_BOX_LR_BORDER, + target_y + target_height + UI_BOX_TB_BORDER, subitem_invert ? UI_SELECTED_BG_COLOR : UI_BACKGROUND_COLOR); + ui_draw_text_full(container, pitem.subtext, target_x, target_y, target_width, + JUSTIFY_RIGHT, WRAP_WORD, DRAW_NORMAL, UI_SELECTED_COLOR, UI_SELECTED_BG_COLOR, NULL, NULL); + } + + /* if there is something special to add, do it by calling the virtual method */ + custom_render((selected >= 0 && selected < numitems) ? item[selected].ref : NULL, customtop, custombottom, x1, y1, x2, y2); + + /* return the number of visible lines, minus 1 for top arrow and 1 for bottom arrow */ + visitems = visible_lines - (top_line != 0) - (top_line + visible_lines != numitems); +} + +void ui_menu::custom_render(void *selectedref, float top, float bottom, float x, float y, float x2, float y2) +{ +} + +/*------------------------------------------------- + draw_text_box - draw a multiline + word-wrapped text box with a menu item at the + bottom +-------------------------------------------------*/ + +void ui_menu::draw_text_box() +{ + const char *text = item[0].text; + const char *backtext = item[1].text; + float line_height = ui_get_line_height(machine()); + float lr_arrow_width = 0.4f * line_height * machine().render().ui_aspect(); + float gutter_width = lr_arrow_width; + float target_width, target_height, prior_width; + float target_x, target_y; + + /* compute the multi-line target width/height */ + ui_draw_text_full(container, text, 0, 0, 1.0f - 2.0f * UI_BOX_LR_BORDER - 2.0f * gutter_width, + JUSTIFY_LEFT, WRAP_WORD, DRAW_NONE, ARGB_WHITE, ARGB_BLACK, &target_width, &target_height); + target_height += 2.0f * line_height; + if (target_height > 1.0f - 2.0f * UI_BOX_TB_BORDER) + target_height = floor((1.0f - 2.0f * UI_BOX_TB_BORDER) / line_height) * line_height; + + /* maximum against "return to prior menu" text */ + prior_width = ui_get_string_width(machine(), backtext) + 2.0f * gutter_width; + target_width = MAX(target_width, prior_width); + + /* determine the target location */ + target_x = 0.5f - 0.5f * target_width; + target_y = 0.5f - 0.5f * target_height; + + /* make sure we stay on-screen */ + if (target_x < UI_BOX_LR_BORDER + gutter_width) + target_x = UI_BOX_LR_BORDER + gutter_width; + if (target_x + target_width + gutter_width + UI_BOX_LR_BORDER > 1.0f) + target_x = 1.0f - UI_BOX_LR_BORDER - gutter_width - target_width; + if (target_y < UI_BOX_TB_BORDER) + target_y = UI_BOX_TB_BORDER; + if (target_y + target_height + UI_BOX_TB_BORDER > 1.0f) + target_y = 1.0f - UI_BOX_TB_BORDER - target_height; + + /* add a box around that */ + ui_draw_outlined_box(container, target_x - UI_BOX_LR_BORDER - gutter_width, + target_y - UI_BOX_TB_BORDER, + target_x + target_width + gutter_width + UI_BOX_LR_BORDER, + target_y + target_height + UI_BOX_TB_BORDER, (item[0].flags & MENU_FLAG_REDTEXT) ? UI_RED_COLOR : UI_BACKGROUND_COLOR); + ui_draw_text_full(container, text, target_x, target_y, target_width, + JUSTIFY_LEFT, WRAP_WORD, DRAW_NORMAL, UI_TEXT_COLOR, UI_TEXT_BG_COLOR, NULL, NULL); + + /* draw the "return to prior menu" text with a hilight behind it */ + container->add_quad( + target_x + 0.5f * UI_LINE_WIDTH, + target_y + target_height - line_height, + target_x + target_width - 0.5f * UI_LINE_WIDTH, + target_y + target_height, + UI_SELECTED_BG_COLOR, + hilight_texture, + PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA) | PRIMFLAG_TEXWRAP(TRUE)); + ui_draw_text_full(container, backtext, target_x, target_y + target_height - line_height, target_width, + JUSTIFY_CENTER, WRAP_TRUNCATE, DRAW_NORMAL, UI_SELECTED_COLOR, UI_SELECTED_BG_COLOR, NULL, NULL); + + /* artificially set the hover to the last item so a double-click exits */ + hover = numitems - 1; +} + + +/*------------------------------------------------- + handle_events - generically handle + input events for a menu +-------------------------------------------------*/ + +void ui_menu::handle_events() +{ + int stop = FALSE; + ui_event local_menu_event; + + /* loop while we have interesting events */ + while (ui_input_pop_event(machine(), &local_menu_event) && !stop) + { + switch (local_menu_event.event_type) + { + /* if we are hovering over a valid item, select it with a single click */ + case UI_EVENT_MOUSE_DOWN: + if (hover >= 0 && hover < numitems) + selected = hover; + else if (hover == -2) + { + selected -= visitems - 1; + validate_selection(1); + } + else if (hover == -1) + { + selected += visitems - 1; + validate_selection(1); + } + break; + + /* if we are hovering over a valid item, fake a UI_SELECT with a double-click */ + case UI_EVENT_MOUSE_DOUBLE_CLICK: + if (hover >= 0 && hover < numitems) + { + selected = hover; + if (local_menu_event.event_type == UI_EVENT_MOUSE_DOUBLE_CLICK) + { + menu_event.iptkey = IPT_UI_SELECT; + if (selected == numitems - 1) + { + menu_event.iptkey = IPT_UI_CANCEL; + ui_menu::stack_pop(machine()); + } + } + stop = TRUE; + } + break; + + /* translate CHAR events into specials */ + case UI_EVENT_CHAR: + menu_event.iptkey = IPT_SPECIAL; + menu_event.unichar = local_menu_event.ch; + stop = TRUE; + break; + + /* ignore everything else */ + default: + break; + } + } +} + + +/*------------------------------------------------- + handle_keys - generically handle + keys for a menu +-------------------------------------------------*/ + +void ui_menu::handle_keys(UINT32 flags) +{ + int ignorepause = ui_menu::stack_has_special_main_menu(); + int ignoreright = FALSE; + int ignoreleft = FALSE; + int code; + + /* bail if no items */ + if (numitems == 0) + return; + + /* if we hit select, return TRUE or pop the stack, depending on the item */ + if (exclusive_input_pressed(IPT_UI_SELECT, 0)) + { + if (selected == numitems - 1) + { + menu_event.iptkey = IPT_UI_CANCEL; + ui_menu::stack_pop(machine()); + } + return; + } + + /* hitting cancel also pops the stack */ + if (exclusive_input_pressed(IPT_UI_CANCEL, 0)) + { + ui_menu::stack_pop(machine()); + return; + } + + /* validate the current selection */ + validate_selection(1); + + /* swallow left/right keys if they are not appropriate */ + ignoreleft = ((item[selected].flags & MENU_FLAG_LEFT_ARROW) == 0); + ignoreright = ((item[selected].flags & MENU_FLAG_RIGHT_ARROW) == 0); + + /* accept left/right keys as-is with repeat */ + if (!ignoreleft && exclusive_input_pressed(IPT_UI_LEFT, (flags & UI_MENU_PROCESS_LR_REPEAT) ? 6 : 0)) + return; + if (!ignoreright && exclusive_input_pressed(IPT_UI_RIGHT, (flags & UI_MENU_PROCESS_LR_REPEAT) ? 6 : 0)) + return; + + /* up backs up by one item */ + if (exclusive_input_pressed(IPT_UI_UP, 6)) + { + selected = (selected + numitems - 1) % numitems; + validate_selection(-1); + } + + /* down advances by one item */ + if (exclusive_input_pressed(IPT_UI_DOWN, 6)) + { + selected = (selected + 1) % numitems; + validate_selection(1); + } + + /* page up backs up by visitems */ + if (exclusive_input_pressed(IPT_UI_PAGE_UP, 6)) + { + selected -= visitems - 1; + validate_selection(1); + } + + /* page down advances by visitems */ + if (exclusive_input_pressed(IPT_UI_PAGE_DOWN, 6)) + { + selected += visitems - 1; + validate_selection(-1); + } + + /* home goes to the start */ + if (exclusive_input_pressed(IPT_UI_HOME, 0)) + { + selected = 0; + validate_selection(1); + } + + /* end goes to the last */ + if (exclusive_input_pressed(IPT_UI_END, 0)) + { + selected = numitems - 1; + validate_selection(-1); + } + + /* pause enables/disables pause */ + if (!ignorepause && exclusive_input_pressed(IPT_UI_PAUSE, 0)) + { + if (machine().paused()) + machine().resume(); + else + machine().pause(); + } + + /* handle a toggle cheats request */ + if (ui_input_pressed_repeat(machine(), IPT_UI_TOGGLE_CHEAT, 0)) + machine().cheat().set_enable(!machine().cheat().enabled()); + + /* see if any other UI keys are pressed */ + if (menu_event.iptkey == IPT_INVALID) + for (code = IPT_UI_FIRST + 1; code < IPT_UI_LAST; code++) + { + if (code == IPT_UI_CONFIGURE || (code == IPT_UI_LEFT && ignoreleft) || (code == IPT_UI_RIGHT && ignoreright) || (code == IPT_UI_PAUSE && ignorepause)) + continue; + if (exclusive_input_pressed(code, 0)) + break; + } +} + + +/*------------------------------------------------- + validate_selection - validate the + current selection and ensure it is on a + correct item +-------------------------------------------------*/ + +void ui_menu::validate_selection(int scandir) +{ + /* clamp to be in range */ + if (selected < 0) + selected = 0; + else if (selected >= numitems) + selected = numitems - 1; + + /* skip past unselectable items */ + while (!item[selected].is_selectable()) + selected = (selected + numitems + scandir) % numitems; +} + + + +/*------------------------------------------------- + clear_free_list - clear out anything + accumulated in the free list +-------------------------------------------------*/ + +void ui_menu::clear_free_list(running_machine &machine) +{ + while (menu_free != NULL) + { + ui_menu *menu = menu_free; + menu_free = menu->parent; + auto_free(machine, menu); + } +} + + + +/*************************************************************************** + MENU STACK MANAGEMENT +***************************************************************************/ + +/*------------------------------------------------- + ui_menu::stack_reset - reset the menu stack +-------------------------------------------------*/ + +void ui_menu::stack_reset(running_machine &machine) +{ + while (menu_stack != NULL) + ui_menu::stack_pop(machine); +} + + +/*------------------------------------------------- + stack_push - push a new menu onto the + stack +-------------------------------------------------*/ + +void ui_menu::stack_push(ui_menu *menu) +{ + menu->parent = menu_stack; + menu_stack = menu; + menu->reset(UI_MENU_RESET_SELECT_FIRST); + ui_input_reset(menu->machine()); +} + + +/*------------------------------------------------- + stack_pop - pop a menu from the stack +-------------------------------------------------*/ + +void ui_menu::stack_pop(running_machine &machine) +{ + if (menu_stack != NULL) + { + ui_menu *menu = menu_stack; + menu_stack = menu->parent; + menu->parent = menu_free; + menu_free = menu; + ui_input_reset(machine); + } +} + + +/*------------------------------------------------- + ui_menu::stack_has_special_main_menu - + check in the special main menu is in the stack +-------------------------------------------------*/ + +bool ui_menu::stack_has_special_main_menu() +{ + ui_menu *menu; + + for (menu = menu_stack; menu != NULL; menu = menu->parent) + if (menu->is_special_main_menu()) + return true; + + return false; +} + +void ui_menu::do_handle() +{ + if(!populated()) + populate(); + handle(); +} + + +/*************************************************************************** + UI SYSTEM INTERACTION +***************************************************************************/ + +/*------------------------------------------------- + ui_menu_ui_handler - displays the current menu + and calls the menu handler +-------------------------------------------------*/ + +UINT32 ui_menu::ui_handler(running_machine &machine, render_container *container, UINT32 state) +{ + /* if we have no menus stacked up, start with the main menu */ + if (menu_stack == NULL) + stack_push(auto_alloc_clear(machine, ui_menu_main(machine, container))); + + /* update the menu state */ + if (menu_stack != NULL) + menu_stack->do_handle(); + + /* clear up anything pending to be released */ + clear_free_list(machine); + + /* if the menus are to be hidden, return a cancel here */ + if ((ui_input_pressed(machine, IPT_UI_CONFIGURE) && !stack_has_special_main_menu()) || menu_stack == NULL) + return UI_HANDLER_CANCEL; + + return 0; +} + +/*************************************************************************** + MENU HELPERS +***************************************************************************/ + +/*------------------------------------------------- + render_triangle - render a triangle that + is used for up/down arrows and left/right + indicators +-------------------------------------------------*/ + +void ui_menu::render_triangle(bitmap_argb32 &dest, bitmap_argb32 &source, const rectangle &sbounds, void *param) +{ + int halfwidth = dest.width() / 2; + int height = dest.height(); + int x, y; + + /* start with all-transparent */ + dest.fill(MAKE_ARGB(0x00,0x00,0x00,0x00)); + + /* render from the tip to the bottom */ + for (y = 0; y < height; y++) + { + int linewidth = (y * (halfwidth - 1) + (height / 2)) * 255 * 2 / height; + UINT32 *target = &dest.pix32(y, halfwidth); + + /* don't antialias if height < 12 */ + if (dest.height() < 12) + { + int pixels = (linewidth + 254) / 255; + if (pixels % 2 == 0) pixels++; + linewidth = pixels * 255; + } + + /* loop while we still have data to generate */ + for (x = 0; linewidth > 0; x++) + { + int dalpha; + + /* first column we only consume one pixel */ + if (x == 0) + { + dalpha = MIN(0xff, linewidth); + target[x] = MAKE_ARGB(dalpha,0xff,0xff,0xff); + } + + /* remaining columns consume two pixels, one on each side */ + else + { + dalpha = MIN(0x1fe, linewidth); + target[x] = target[-x] = MAKE_ARGB(dalpha/2,0xff,0xff,0xff); + } + + /* account for the weight we consumed */ + linewidth -= dalpha; + } + } +} |