static void demo_screen() {
//------- display screen -----------//
int dataSize;
File* filePtr = image_interface.get_file("DEMOSCR", dataSize);
if (filePtr->file_get_short() != -1 ) { // use common color palette
filePtr->file_seek(filePtr->file_pos() - sizeof(short));
vga_back.put_large_bitmap(0, 0, filePtr);
}
else { // use own color palette
unsigned char palette[256 * 3];
short *remapTable;
filePtr->file_read(palette, 256 * 3);
PalDesc palDesc(palette, 3, 256, 6);
ColorTable colorTable;
colorTable.generate_table_fast(MAX_BRIGHTNESS_ADJUST_DEGREE, palDesc, ColorTable::bright_func);
remapTable = (short *) colorTable.get_table(0);
vga_back.put_large_bitmap(0, 0, filePtr, remapTable);
}
vga.blt_buf(0,0,VGA_WIDTH-1,VGA_HEIGHT-1);
sys.blt_virtual_buf();
//-------- detect button --------//
int highlightButton=0;
while(1) {
MSG msg;
if (PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE)) {
if (!GetMessage( &msg, NULL, 0, 0)) {
return;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
continue;
}
else if( sys.paused_flag || !sys.active_flag ) {
WaitMessage();
continue;
}
//---------- detect menu option buttons -----------//
sys.yield();
mouse.get_event();
DemoButton* buttonPtr = demo_button_array;
for( int i=0 ; i<DEMO_BUTTON_COUNT ; i++, buttonPtr++ ) {
//----- has clicked on a button -------//
if( mouse.single_click( buttonPtr->x1, buttonPtr->y1,
buttonPtr->x1+buttonPtr->width-1, buttonPtr->y1+buttonPtr->height-1, 0 ) ) {
audio.play_wav("BEEPS-1",audio.int_to_DsVolume(config.sound_effect_volume));
switch(i) {
case 0:
open_http( "anker.url", "http://www.ankerpub.com" );
return;
case 1:
open_http( "vu.url", "http://www.virtual-u.org" );
return;
case 2:
return;
}
}
//---- if the mouse cursor is in the area ----//
if( mouse.in_area( buttonPtr->x1, buttonPtr->y1,
buttonPtr->x1+buttonPtr->width-1, buttonPtr->y1+buttonPtr->height-1 ) ) {
if( highlightButton != i+1 ) {
highlightButton = i+1;
// restore original image first
vga.blt_buf(0,0,VGA_WIDTH-1,VGA_HEIGHT-1);
mouse.hide_area(buttonPtr->x1, buttonPtr->y1,
buttonPtr->x1+buttonPtr->width-1, buttonPtr->y1+buttonPtr->height-1);
image_interface.put_front( buttonPtr->x1, buttonPtr->y1, buttonPtr->file_name );
mouse.show_area();
sys.blt_virtual_buf();
}
break;
}
}
//------- the mouse cursor is not on any of the buttons ------//
if( i==DEMO_BUTTON_COUNT ) {
if( highlightButton != 0 ) {
vga.blt_buf(0,0,VGA_WIDTH-1,VGA_HEIGHT-1);// restore original image
highlightButton = 0;
}
}
}
}
