mame/src/emu/ui/sliders.cpp
2016-01-30 20:43:50 +01:00

257 lines
8.9 KiB
C++

// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria, Aaron Giles, Nathan Woods
/*********************************************************************
miscmenu.c
Internal MAME menus for the user interface.
*********************************************************************/
#include "emu.h"
#include "osdepend.h"
#include "uiinput.h"
#include "ui/ui.h"
#include "ui/menu.h"
#include "ui/sliders.h"
ui_menu_sliders::ui_menu_sliders(running_machine &machine, render_container *container, bool _menuless_mode) : ui_menu(machine, container)
{
menuless_mode = hidden = _menuless_mode;
}
ui_menu_sliders::~ui_menu_sliders()
{
}
/*-------------------------------------------------
menu_sliders - handle the sliders menu
-------------------------------------------------*/
void ui_menu_sliders::handle()
{
const ui_menu_event *menu_event;
/* process the menu */
menu_event = process(UI_MENU_PROCESS_LR_REPEAT | (hidden ? UI_MENU_PROCESS_CUSTOM_ONLY : 0));
if (menu_event != nullptr)
{
/* handle keys if there is a valid item selected */
if (menu_event->itemref != nullptr)
{
const slider_state *slider = (const slider_state *)menu_event->itemref;
INT32 curvalue = (*slider->update)(machine(), slider->arg, nullptr, SLIDER_NOCHANGE);
INT32 increment = 0;
switch (menu_event->iptkey)
{
/* toggle visibility */
case IPT_UI_ON_SCREEN_DISPLAY:
if (menuless_mode)
ui_menu::stack_pop(machine());
else
hidden = !hidden;
break;
/* decrease value */
case IPT_UI_LEFT:
if (machine().input().code_pressed(KEYCODE_LALT) || machine().input().code_pressed(KEYCODE_RALT))
increment = -1;
else if (machine().input().code_pressed(KEYCODE_LSHIFT) || machine().input().code_pressed(KEYCODE_RSHIFT))
increment = (slider->incval > 10) ? -(slider->incval / 10) : -1;
else if (machine().input().code_pressed(KEYCODE_LCONTROL) || machine().input().code_pressed(KEYCODE_RCONTROL))
increment = -slider->incval * 10;
else
increment = -slider->incval;
break;
/* increase value */
case IPT_UI_RIGHT:
if (machine().input().code_pressed(KEYCODE_LALT) || machine().input().code_pressed(KEYCODE_RALT))
increment = 1;
else if (machine().input().code_pressed(KEYCODE_LSHIFT) || machine().input().code_pressed(KEYCODE_RSHIFT))
increment = (slider->incval > 10) ? (slider->incval / 10) : 1;
else if (machine().input().code_pressed(KEYCODE_LCONTROL) || machine().input().code_pressed(KEYCODE_RCONTROL))
increment = slider->incval * 10;
else
increment = slider->incval;
break;
/* restore default */
case IPT_UI_SELECT:
increment = slider->defval - curvalue;
break;
}
/* handle any changes */
if (increment != 0)
{
INT32 newvalue = curvalue + increment;
/* clamp within bounds */
if (newvalue < slider->minval)
newvalue = slider->minval;
if (newvalue > slider->maxval)
newvalue = slider->maxval;
/* update the slider and recompute the menu */
(*slider->update)(machine(), slider->arg, nullptr, newvalue);
reset(UI_MENU_RESET_REMEMBER_REF);
}
}
/* if we are selecting an invalid item and we are hidden, skip to the next one */
else if (hidden)
{
/* if we got here via up or page up, select the previous item */
if (menu_event->iptkey == IPT_UI_UP || menu_event->iptkey == IPT_UI_PAGE_UP)
{
selected = (selected + numitems - 1) % numitems;
validate_selection(-1);
}
/* otherwise select the next item */
else if (menu_event->iptkey == IPT_UI_DOWN || menu_event->iptkey == IPT_UI_PAGE_DOWN)
{
selected = (selected + 1) % numitems;
validate_selection(1);
}
}
}
}
/*-------------------------------------------------
menu_sliders_populate - populate the sliders
menu
-------------------------------------------------*/
void ui_menu_sliders::populate()
{
std::string tempstring;
/* add UI sliders */
for (const slider_state *curslider = machine().ui().get_slider_list(); curslider != nullptr; curslider = curslider->next)
{
INT32 curval = (*curslider->update)(machine(), curslider->arg, &tempstring, SLIDER_NOCHANGE);
UINT32 flags = 0;
if (curval > curslider->minval)
flags |= MENU_FLAG_LEFT_ARROW;
if (curval < curslider->maxval)
flags |= MENU_FLAG_RIGHT_ARROW;
item_append(curslider->description, tempstring.c_str(), flags, (void *)curslider);
}
/* add OSD sliders */
for (const slider_state *curslider = (slider_state*)machine().osd().get_slider_list(); curslider != nullptr; curslider = curslider->next)
{
INT32 curval = (*curslider->update)(machine(), curslider->arg, &tempstring, SLIDER_NOCHANGE);
UINT32 flags = 0;
if (curval > curslider->minval)
flags |= MENU_FLAG_LEFT_ARROW;
if (curval < curslider->maxval)
flags |= MENU_FLAG_RIGHT_ARROW;
item_append(curslider->description, tempstring.c_str(), flags, (void *)curslider);
}
custombottom = 2.0f * machine().ui().get_line_height() + 2.0f * UI_BOX_TB_BORDER;
}
/*-------------------------------------------------
menu_sliders_custom_render - perform our special
rendering
-------------------------------------------------*/
void ui_menu_sliders::custom_render(void *selectedref, float top, float bottom, float x1, float y1, float x2, float y2)
{
const slider_state *curslider = (const slider_state *)selectedref;
if (curslider != nullptr)
{
float bar_left, bar_area_top, bar_width, bar_area_height, bar_top, bar_bottom, default_x, current_x;
float line_height = machine().ui().get_line_height();
float percentage, default_percentage;
std::string tempstring;
float text_height;
INT32 curval;
/* determine the current value and text */
curval = (*curslider->update)(machine(), curslider->arg, &tempstring, SLIDER_NOCHANGE);
/* compute the current and default percentages */
percentage = (float)(curval - curslider->minval) / (float)(curslider->maxval - curslider->minval);
default_percentage = (float)(curslider->defval - curslider->minval) / (float)(curslider->maxval - curslider->minval);
/* assemble the text */
tempstring.insert(0, " ").insert(0, curslider->description);
/* move us to the bottom of the screen, and expand to full width */
y2 = 1.0f - UI_BOX_TB_BORDER;
y1 = y2 - bottom;
x1 = UI_BOX_LR_BORDER;
x2 = 1.0f - UI_BOX_LR_BORDER;
/* draw extra menu area */
machine().ui().draw_outlined_box(container, x1, y1, x2, y2, UI_BACKGROUND_COLOR);
y1 += UI_BOX_TB_BORDER;
/* determine the text height */
machine().ui().draw_text_full(container, tempstring.c_str(), 0, 0, x2 - x1 - 2.0f * UI_BOX_LR_BORDER,
JUSTIFY_CENTER, WRAP_TRUNCATE, DRAW_NONE, ARGB_WHITE, ARGB_BLACK, nullptr, &text_height);
/* draw the thermometer */
bar_left = x1 + UI_BOX_LR_BORDER;
bar_area_top = y1;
bar_width = x2 - x1 - 2.0f * UI_BOX_LR_BORDER;
bar_area_height = line_height;
/* compute positions */
bar_top = bar_area_top + 0.125f * bar_area_height;
bar_bottom = bar_area_top + 0.875f * bar_area_height;
default_x = bar_left + bar_width * default_percentage;
current_x = bar_left + bar_width * percentage;
/* fill in the percentage */
container->add_rect(bar_left, bar_top, current_x, bar_bottom, UI_SLIDER_COLOR, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
/* draw the top and bottom lines */
container->add_line(bar_left, bar_top, bar_left + bar_width, bar_top, UI_LINE_WIDTH, UI_BORDER_COLOR, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
container->add_line(bar_left, bar_bottom, bar_left + bar_width, bar_bottom, UI_LINE_WIDTH, UI_BORDER_COLOR, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
/* draw default marker */
container->add_line(default_x, bar_area_top, default_x, bar_top, UI_LINE_WIDTH, UI_BORDER_COLOR, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
container->add_line(default_x, bar_bottom, default_x, bar_area_top + bar_area_height, UI_LINE_WIDTH, UI_BORDER_COLOR, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
/* draw the actual text */
machine().ui().draw_text_full(container, tempstring.c_str(), x1 + UI_BOX_LR_BORDER, y1 + line_height, x2 - x1 - 2.0f * UI_BOX_LR_BORDER,
JUSTIFY_CENTER, WRAP_WORD, DRAW_NORMAL, UI_TEXT_COLOR, UI_TEXT_BG_COLOR, nullptr, &text_height);
}
}
/*-------------------------------------------------
ui_slider_ui_handler - pushes the slider
menu on the stack and hands off to the
standard menu handler
-------------------------------------------------*/
UINT32 ui_menu_sliders::ui_handler(running_machine &machine, render_container *container, UINT32 state)
{
UINT32 result;
/* if this is the first call, push the sliders menu */
if (state)
ui_menu::stack_push(global_alloc_clear<ui_menu_sliders>(machine, container, true));
/* handle standard menus */
result = ui_menu::ui_handler(machine, container, state);
/* if we are cancelled, pop the sliders menu */
if (result == UI_HANDLER_CANCEL)
ui_menu::stack_pop(machine);
ui_menu_sliders *uim = dynamic_cast<ui_menu_sliders *>(menu_stack);
return uim && uim->menuless_mode ? 0 : UI_HANDLER_CANCEL;
}