static void
divide_from_snapshot( libspectrum_snap *snap )
{
size_t i;
if( !libspectrum_snap_divide_active( snap ) ) return;
settings_current.divide_wp =
libspectrum_snap_divide_eprom_writeprotect( snap );
divide_control_write_internal( libspectrum_snap_divide_control( snap ) );
if( libspectrum_snap_divide_eprom( snap, 0 ) ) {
memcpy( divide_eprom,
libspectrum_snap_divide_eprom( snap, 0 ), DIVIDE_PAGE_LENGTH );
}
for( i = 0; i < libspectrum_snap_divide_pages( snap ); i++ )
if( libspectrum_snap_divide_ram( snap, i ) )
memcpy( divide_ram[ i ], libspectrum_snap_divide_ram( snap, i ),
DIVIDE_PAGE_LENGTH );
if( libspectrum_snap_divide_paged( snap ) ) {
divide_page();
} else {
divide_unpage();
}
}
void
divide_refresh_page_state( void )
{
if( divide_control & DIVIDE_CONTROL_CONMEM ) {
/* always paged in if conmem enabled */
divide_page();
} else if( settings_current.divide_wp
|| ( divide_control & DIVIDE_CONTROL_MAPRAM ) ) {
/* automap in effect */
if( divide_automap ) {
divide_page();
} else {
divide_unpage();
}
} else {
divide_unpage();
}
}
void Confirm_AllDivide(const char* fn)
{
/*
尝试全部分页（界面绘制）
参数说明：
fn: 当前打开文件的文件名
*/
beg:
font16 = open_font("\\\\fls0\\24PX.hzk");
select_font(font16);
ClearArea(35,45,349,166);
print_chs_2(38,47,0,"尝试全部分页可能需要");
print_chs_2(38,71,0,"很长时间。");
print_chs_2(38,95,0,"确定继续？");
locate_OS(6,5);
Print_OS("[F1]:",0,0);print_chs_2(181,119,0,"是");
locate_OS(6,6);
Print_OS("[F6]:",0,0);print_chs_2(181,143,0,"否");
close_font(font16);
while (1)
{
int key;
GetKey(&key);
switch (key)
{
case KEY_CTRL_F1:
divide_page(fn,9999-cached,0); // 尝试分到 9999 页
return;break;
case KEY_CTRL_F6:
return;break;
}
}
}
void iRead_main(const char* filename)
{
/*
阅读界面主函数
参数说明：
filename: 打开的文件名 (从文件浏览器得到)
*/
int key,handle;
char* buf=(char*)malloc(461);
FONTCHARACTER fname[64];
char tip[64], tmp[64];
page=0;cached=0;
memset(bytes,0,sizeof(bytes));
memset(bookmark,0,sizeof(bookmark));bookmark[3]=0;
Read_Config(filename,&cached); // 读取书签及分页配置
// 如果分的页数不满 500 的整数倍，补分页满
if (cached==0) divide_page(filename,500-cached,1);
else
if (cached%500!=0) divide_page(filename,500-cached%500,1); // 补至 500 的整数倍
totbytes=0;
/* 设置状态栏显示文字
0x0001：显示电量
0x0100：显示文字
*/
DefineStatusAreaFlags(3, 0x01 | 0x02 | 0x100, 0, 0);
beg:
font16=open_font("\\\\fls0\\24PX.hzk");
select_font(font16);
Bdisp_AllClr_VRAM();
draw_pic(0,192,124,22,0,Menu_Read);
draw_pic(126,192,61,22,0,Menu_Sub_Jump);
// 若翻下一页时超出已缓存页面范围
if (cached<=page)
{
// 如果分的页数不满 500 的整数倍，补分页满
if (!divide_page(filename,1,0)) page=cached-1;
else if (cached%500!=0) divide_page(filename,500-cached%500,0);
close_font(font16);
goto beg;
}
totbytes=bytes[page]; // 修正读取字节指针位置
char_to_font(filename,fname);
handle=Bfile_OpenFile_OS(fname,0); // 打开文件
Bfile_ReadFile_OS(handle,buf,400,totbytes);
Bfile_CloseFile_OS(handle);
print_chs_page(0,24,totbytes,(unsigned char*)buf); // 绘制一页
close_font(font16);
// 准备显示浏览进度
char fn_ptr[64];
memset(fn_ptr, 0, sizeof(fn_ptr));
GetDisplayFileName(filename, fn_ptr);
memset(tip, 0, sizeof(tip));
memset(tmp, 0, sizeof(tmp));
strcat(tip, fn_ptr); strcat(tip, " ");
itoa(page + 1, tmp, 10); strcat(tip, tmp);
strcat(tip, "/"); memset(tmp, 0, sizeof(tmp));
itoa(cached, tmp, 10);strcat(tip, tmp);
// 状态栏显示文件名及进度
DefineStatusMessage(tip, 0, 0, 0);
while (1)
{
GetKey(&key);
switch (key)
{
case KEY_CTRL_UP: // 跳到上一页
if (page>0)
{
--page;
goto beg;
}
break;
case KEY_CTRL_DOWN: // 跳到下一页
++page;
goto beg;
break;
case KEY_CTRL_EXIT: // 离开，返回文件浏览器
Save_Config(filename,cached+1);
DefineStatusAreaFlags(3, 0x01 | 0x02 | 0x100, 0, 0);
return;break;
case KEY_CTRL_F2: // 打开存储书签对话框
Save_Bookmark(filename,page,cached+1);
goto beg;break;
case KEY_CTRL_F1: // 打开读取书签对话框
Read_Bookmark(filename,&page,&cached);
goto beg;break;
case KEY_CTRL_F3: // 打开跳页对话框
Page_Jump(filename);
goto beg;break;
}
}
}
void Page_Jump(const char* fn)
{
/*
跳页（界面绘制）
参数说明：
fn: 当前打开文件的文件名
*/
FONTCHARACTER fname[64];
char tip[64],tmp[64];
char keybuff[32]; // 接受页码的字符缓冲区
int inspos=0,target;
memset(keybuff, 0, sizeof(keybuff));
MsgBoxPush(5);
beg:
font16 = open_font("\\\\fls0\\24PX.hzk");
select_font(font16);
ClearArea(0,192,384,216);
draw_pic(0,192,61,22,0,Menu_Sub_Jump);
draw_pic(63,192,61,22,0,Menu_Jump);
ClearArea(35,45,349,166);
print_chs_2(38,47,0,"当前页/已缓存页数：");
locate_OS(3,3);
memset(tmp,0,sizeof(tmp));memset(tip,0,sizeof(tip));
itoa(page+1,tmp,10);strcat(tip,tmp);
strcat(tip,"/");memset(tmp,0,sizeof(tmp));
itoa(cached,tmp,10);strcat(tip,tmp);
Print_OS(tip,0,0);
print_chs_2(38,119,0,"输入目标页码：");
locate_OS(3,6);
Print_OS("[ ]",0,0);
locate_OS(4,6);
Print_OS(keybuff,0,0);
close_font(font16);
while (1)
{
int key;
GetKey(&key);
switch (key)
{
case KEY_CTRL_EXIT:
MsgBoxPop();
return;break;
case KEY_CTRL_F2:
Confirm_AllDivide(fn); // 尝试全部分页
goto beg;break;
case KEY_CTRL_DEL:
if (inspos>0)
{
keybuff[--inspos]=0; // 最后一个字节置为 NULL，标识已删除
goto beg;
}
break;
case KEY_CTRL_F1:
case KEY_CTRL_EXE:
if (inspos==0) break;
target=atoi(keybuff);
if (target>cached) // 如果目标位置超出已缓存页面数，尝试分页
{
if (!divide_page(fn, target-cached, 1)) page = cached - 1; // 若分页已达文件末尾，则将当前页面修正到最后一页
else page=target-1; // 否则修正当前页面为输入的目标位置
}
else
page=target-1; // 修正当前页面为输入的目标位置
MsgBoxPop();
return;break;
default:
if (key>=0x30&&key<=0x39) // 输入数字 0~9
{
if (inspos<=3)
{
if (key==0x30&&inspos==0) break; // 尝试第一位输入 0 时跳出
keybuff[inspos++]=key; // 最后一个字节添加输入
goto beg;
}
}
}
}
}