void sheet_updown(struct SHEET *sht, int height)
{
struct SHTCTL *ctl = sht->ctl;
int h, old = sht->height; /* 存储设置前的高度信息 */
if (height > ctl->top + 1) {
height = ctl->top + 1;
}
if (height < -1) {
height = -1;
}
sht->height = height;/* 设定高度 */
/* 下面主要是进行sheets[]的重新排列 */
if (old > height) { /* 比以前低 */
if (height >= 0) {
/* 把中间的往上提 */
for (h = old; h > height; h--) {
ctl->sheets[h] = ctl->sheets[h - 1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1, old);
} else { /* 隐藏 */
if (ctl->top > old) {
/* 把上面的降下来 */
for (h = old; h < ctl->top; h++) {
ctl->sheets[h] = ctl->sheets[h + 1];
ctl->sheets[h]->height = h;
}
}
ctl->top--; /* 由于显示中的图层减少了一个，所以最上面的图层高度下降 */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0, old - 1);
}
} else if (old < height) { /* 比以前高 */
if (old >= 0) {
/* 把中间的拉下去 */
for (h = old; h < height; h++) {
ctl->sheets[h] = ctl->sheets[h + 1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
} else { /* 由隐藏状态转为显示状态 */
/* 将已在上面的提上来 */
for (h = ctl->top; h >= height; h--) {
ctl->sheets[h + 1] = ctl->sheets[h];
ctl->sheets[h + 1]->height = h + 1;
}
ctl->sheets[height] = sht;
ctl->top++; /* 由于已显示的图层增加了1个，所以最上面的图层高度增加 */
}
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height, height); /* 按新图层信息重新绘制画面 */
}
return;
}
void sheet_updown(struct SHEET *sht, int height)
{
struct SHTCTL *ctl = sht->ctl;
int h, old = sht->height;
if (height > ctl->top + 1)
height = ctl->top + 1;
if (height < -1)
height = -1;
sht->height = height;
if (old > height) { //层数下降
if (height >= 0) {
for (h = old; h > height; h--) {
ctl->sheets[h] = ctl->sheets[h - 1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1, old);
}
else { //更新后height <0,即这层不显示，总层数-1
if (ctl->top > old) {
for (h = old; h < ctl->top; h++) {
ctl->sheets[h] = ctl->sheets[h + 1];
ctl->sheets[h]->height = h;
}
}
ctl->top--;
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0, old - 1);
}
//sheet_refresh(ctl);
//sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height+1);
}
else if (old < height) { //层数升高
if (old >= 0) {
for (h = old; h < height; h++) {
ctl->sheets[h] = ctl->sheets[h + 1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
}
else { //重新显示
for (h = ctl->top; h >= height; h--) {
ctl->sheets[h + 1] = ctl->sheets[h];
ctl->sheets[h + 1]->height = h + 1;
}
ctl->sheets[height] = sht;
ctl->top++;
}
//sheet_refresh(ctl);
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height, height);
}
return;
}
/**
* @description 设置图层高度
* @param sht：欲设置高度的图层的指针
* height：欲设置的高度
*/
void sheet_updown(struct SHEET *sht, int height){
struct SHTCTL *ctl = sht->ctl;
int h, old = sht->height; /* 愝掕慜偺崅偝傪婰壇偡傞 */
//TODO 高度有效修正
if (height > ctl->top + 1) {
height = ctl->top + 1;
}
if (height < -1) {
height = -1;
}
sht->height = height;
if (old > height) {
//TODO 比之前低，做下降动作
if (height >= 0) {
for (h = old; h > height; h--) {
ctl->sheets[h] = ctl->sheets[h - 1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1, old);
} else {
if (ctl->top > old) {
for (h = old; h < ctl->top; h++) {
ctl->sheets[h] = ctl->sheets[h + 1];
ctl->sheets[h]->height = h;
}
}
ctl->top--;
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0, old - 1);
}//end of if (height >= 0)else
} else if (old < height) {
//TODO 图层做上升动作
if (old >= 0) {
for (h = old; h < height; h++) {
ctl->sheets[h] = ctl->sheets[h + 1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
} else {
for (h = ctl->top; h >= height; h--) {
ctl->sheets[h + 1] = ctl->sheets[h];
ctl->sheets[h + 1]->height = h + 1;
}
ctl->sheets[height] = sht;
ctl->top++;
}
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height, height);
}
}
void sheet_updown(SHEET *sheet, int height) {
SHEET_CTL *ctl = sheet->ctl;
int h, old = sheet->height; // 設定前の高さを記憶する
// 指定が低すぎや高すぎだったら修正する
if(height > ctl->top + 1) height = ctl->top + 1;
if(height < -1) height = -1;
sheet->height = height; // 高さを設定
// 以下は主にsheets[]の並べ替え
if(old > height) { // 以前よりも低くなる
if(height >= 0) {
// 間のものを引き上げる
for(h = old; h > height; h--) {
ctl->sheets[h] = ctl->sheets[h-1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sheet;
sheet_refreshmap(ctl, sheet->vx0, sheet->vy0, sheet->vx0 + sheet->bxsize, sheet->vy0 + sheet->bysize, height + 1);
sheet_refresh_sub(ctl, sheet->vx0, sheet->vy0, sheet->vx0 + sheet->bxsize, sheet->vy0 + sheet->bysize, height + 1, old);
} else { // 非表示化
if(ctl->top > old) {
// 上になっているものをおろす
for(h = old; h < ctl->top; h++) {
ctl->sheets[h] = ctl->sheets[h+1];
ctl->sheets[h]->height = h;
}
}
ctl->top--; // 表示中の下敷きが1つ減るので一番上の高さが減る
sheet_refreshmap(ctl, sheet->vx0, sheet->vy0, sheet->vx0 + sheet->bxsize, sheet->vy0 + sheet->bysize, 0);
sheet_refresh_sub(ctl, sheet->vx0, sheet->vy0, sheet->vx0 + sheet->bxsize, sheet->vy0 + sheet->bysize, 0, old - 1);
}
} else if(old < height) { // 以前よりも高くなる
if(old >= 0) {
// 間のものを押し下げる
for(h = old; h < height; h++) {
ctl->sheets[h] = ctl->sheets[h-1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sheet;
} else { // 表示状態へ
// 上になるものを持ち上げる
for(h = ctl->top; h >= height; h--) {
ctl->sheets[h+1] = ctl->sheets[h];
ctl->sheets[h+1]->height = h + 1;
}
ctl->sheets[height] = sheet;
ctl->top++; // 表示中の下敷きが1つ増えるので一番上の高さが増える
}
sheet_refreshmap(ctl, sheet->vx0, sheet->vy0, sheet->vx0 + sheet->bxsize, sheet->vy0 + sheet->bysize, height);
sheet_refresh_sub(ctl, sheet->vx0, sheet->vy0, sheet->vx0 + sheet->bxsize, sheet->vy0 + sheet->bysize, height, height);
}
return;
}
void sheet_slide(SHEET *sheet, int vx0, int vy0) {
SHEET_CTL *ctl = sheet->ctl;
int old_vx0 = sheet->vx0, old_vy0 = sheet->vy0;
sheet->vx0 = vx0;
sheet->vy0 = vy0;
if(sheet->height >= 0) { // 表示中なら
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sheet->bxsize, old_vy0 + sheet->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sheet->bxsize, vy0 + sheet->bysize, sheet->height);
sheet_refresh_sub(ctl, old_vx0, old_vy0, old_vx0 + sheet->bxsize, old_vy0 + sheet->bysize, 0, sheet->height - 1);
sheet_refresh_sub(ctl, vx0, vy0, vx0 + sheet->bxsize, vy0 + sheet->bysize, sheet->height, sheet->height);
}
}
void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) { /* if it is active (visible) */
sheet_refreshmap(sht->ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(sht->ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(sht->ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height -1); //paint old area from height "0" on
sheet_refreshsub(sht->ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height); //paint new area from height "sht->height" on
}
return;
}
void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) { /* もしも表示中なら、新しい下じきの情報に沿って画面を描き直す */
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1);
sheet_refreshsub(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) { /* 만약 표시 중이라면 */
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(sht->ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1); /* 새로운 레이어 정보에 따라 화면을 다시 그린다. */
sheet_refreshsub(sht->ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
/////////////////////////////////////////////////////////////////////////////////////
//功能：上下左右移动窗口
//参数：
void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;//更新位置
sht->vy0 = vy0;
if (sht->height >= 0) { /* 如果正在显示，按照新图层刷新画面 */
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1);
sheet_refreshsub(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
/**
* @description 平移图层
* @param sht：欲平移的图层的指针
* vx0：x方向的平移数
* vy0：y方向的平移数
*/
void sheet_slide(struct SHEET *sht, int vx0, int vy0){
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) {
//TODO 图层高度不为-1，即正在显示，则刷新显示
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1);
sheet_refreshsub(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
/* move a single sheet without chaning its height, still need to sheet_refresh */
void sheet_slide(struct SHEET *sht, int vx0, int vy0) {
struct SHTCTL *ctl = sht->ctl;
int oldx = sht->vx0, oldy = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
/* only repaint if this sheet is being displayed */
if(sht->height >= 0) {
/* only redraw the area before and after */
/*
the old area needs to be redrawn from layer 0 - because it's removed
new aread can be redrawn from its height
*/
sheet_refreshmap(ctl, oldx, oldy, oldx+sht->bxsize, oldy+sht->bysize, 0);
sheet_refreshsub(ctl, oldx, oldy, oldx+sht->bxsize, oldy+sht->bysize, 0, sht->height-1);
sheet_refreshmap(ctl, vx0, vy0, vx0+sht->bxsize, vy0+sht->bysize, sht->height);
sheet_refreshsub(ctl, vx0, vy0, vx0+sht->bxsize, vy0+sht->bysize, sht->height, sht->height);
}
return;
}
// move the sheet, and not change the height
void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
/*sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) { // if the sheet is displaying
sheet_refresh(ctl);
}
return;*/
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) {
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1); // remove the old traces
sheet_refreshsub(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height); // draw the new traces
}
return;
}
/*
sht是需要被移动的图层
vx0,vy1是被移动图层新的左上角坐标
*/
void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0; /* 保存图层原来的坐标 */
sht->vx0 = vx0; /* 设置图层新的坐标 */
sht->vy0 = vy0;
/* 如果该图层不是一个隐藏图层 */
if (sht->height >= 0)
{
/* 先修改map信息 再进行重画 */
/* 该语句相当于将map中(old_vx0, old_vy0)(old_vx0 + sht->bxsize, old_vy0 + sht->bysize)定义的
矩形区域重新设置,注意:此时sht图层的坐标已经修改了,而且此处给出的高度为0.也就是说从高度为0
到top的所有图层都会判断是否需要将自己的sid值写入map中该区域
*/
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
/* 与上一条语句类似,此时给出的高度是图层本身的高度 至于为什么请参考书中P213中间的一段话 */
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
/* 修改了map之后根据map中的值来重画 */
sheet_refreshsub(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1);
sheet_refreshsub(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
/*
move sht from its original height to the new height
note can move from height -1 to a positive height as well, in which case ctl->top will add one
*/
void sheet_updown(struct SHEET *sht, int height) {
struct SHTCTL *ctl = sht->ctl;
int h, old = sht->height;
/* check param validity */
/* can have up to top + 1 layers */
if(height > ctl->top + 1) {
height = ctl->top + 1;
}
if(height < -1) {
height = -1;
}
sht->height = height;
/* move it to a lower height */
if(old > height) {
if(height >= 0) {
/* raise (height - old-1) one layer up */
for(h = old; h > height; h--) {
ctl->sheets[h] = ctl->sheets[h-1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
/* this layer is still on screen, we only need to redraw the layers on top of it */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, sht->height + 1);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, sht->height + 1, old);
}
/* else height==-1 we need to remove it from ctl->sheets[] */
else {
if(ctl->top > old) {
for(h = height; h < ctl->top; h++) {
ctl->sheets[h] = ctl->sheets[h+1];
/*
note height is consecutive but not just sorted in ascending order
so we need to assign the new consequtive height numbers
*/
ctl->sheets[h]->height = h;
}
}
ctl->top--;
/* this layer is removed, we need to redraw everything */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0, old - 1);
}
}
/* move it to a higher height */
else if(old < height) {
if(old >= 0) {
for(h = old; h < height; h++) {
ctl->sheets[h] = ctl->sheets[h+1];
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
}
/* we are adding a new layer */
else {
for(h = ctl->top; h >= height; h--) {
ctl->sheets[h+1] = ctl->sheets[h];
ctl->sheets[h+1]->height = h + 1;
}
ctl->sheets[height] = sht;
ctl->top++;
}
/* this layer is lifted, only draw from its height and above */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, sht->height);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
/* 若对算法不明白的可参考任意一本关于数据结构的书籍 */
void sheet_updown(struct SHEET *sht, int height)
{
struct SHTCTL *ctl = sht->ctl;
int h, old = sht->height; /* 保存原来的高度 */
/* 如果新的高度比所有图层的最大的高度还大 则调整它 */
if (height > ctl->top + 1)
{
height = ctl->top + 1;
}
/* 如果新高度小于-1 就设置为-1 我们只需要用-1来表示隐藏就足够了 */
if (height < -1) {
height = -1;
}
sht->height = height; /* 更新图层的高度 */
/* 对p_sheets[]的排列(p_sheets[]就是一个按高度排序的有序数组) */
if (old > height)
{ /* 原来的高度比新高度还要大 */
if (height >= 0)
{
/* 把中间的往上提 */
/* 我们可以认为高度就是图层在p_sheets数组中的下标 */
for (h = old; h > height; h--)
{
ctl->p_sheets[h] = ctl->p_sheets[h - 1];
ctl->p_sheets[h]->height = h; /* 调整原来p_sheets[]中指向的图层的高度 */
/* 即更改原来的图层在p_sheets[]中的下标 */
}
ctl->p_sheets[height] = sht; /* 插入新的图层指针 */
/* 设置map信息并重画 */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1, old);
}
else
{ /* 隐藏原来图层 */
/* 如果原来的图层不是最上层的图层 */
if (ctl->top > old)
{
/* 把上面的降下来 */
for (h = old; h < ctl->top; h++)
{
ctl->p_sheets[h] = ctl->p_sheets[h + 1];
ctl->p_sheets[h]->height = h; /* 调整原来p_sheets[]中指向的图层的高度 */
}
}
ctl->top--; /* 由于显示中的图层减少了一个, 所以最上层的图层高度减一 */
/* 设置map信息并重画 */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0, old - 1);
}
}
else if (old < height)
{ /* 原来的高度比新高度还要小 */
if (old >= 0)
{ /* 原来的图层如果不是隐藏的 */
/* 把中间的拉下去 */
for (h = old; h < height; h++)
{
ctl->p_sheets[h] = ctl->p_sheets[h + 1];
ctl->p_sheets[h]->height = h; /* 调整原来p_sheets[]中指向的图层的高度 */
}
ctl->p_sheets[height] = sht;
}
else
{ /* 原来的图层是隐藏的 */
for (h = ctl->top; h >= height; h--)
{
ctl->p_sheets[h + 1] = ctl->p_sheets[h];
ctl->p_sheets[h + 1]->height = h + 1; /* 调整原来p_sheets[]中指向的图层的高度 */
}
ctl->p_sheets[height] = sht; /* 插入新的图层指针 */
ctl->top++; /* 由于增加了一个要显示的图层,所以最上层的图层高度需要加一 */
}
/* 设置map信息并重画 */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height, height);
}
return;
}