本文整理汇总了C++中DisplayModel::ValidPageNo方法的典型用法代码示例。如果您正苦于以下问题：C++ DisplayModel::ValidPageNo方法的具体用法？C++ DisplayModel::ValidPageNo怎么用？C++ DisplayModel::ValidPageNo使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DisplayModel的用法示例。
在下文中一共展示了DisplayModel::ValidPageNo方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: MakeRandomSelection
static void MakeRandomSelection(WindowInfo* win, int pageNo) {
DisplayModel* dm = win->AsFixed();
if (!dm->ValidPageNo(pageNo))
pageNo = 1;
if (!dm->ValidPageNo(pageNo))
return;
// try a random position in the page
int x = rand() % 640;
int y = rand() % 480;
if (dm->textSelection->IsOverGlyph(pageNo, x, y)) {
dm->textSelection->StartAt(pageNo, x, y);
dm->textSelection->SelectUpTo(pageNo, rand() % 640, rand() % 480);
}
}示例2: OnSelectionStart
void OnSelectionStart(WindowInfo* win, int x, int y, WPARAM key) {
UNUSED(key);
CrashIf(!win->AsFixed());
DeleteOldSelectionInfo(win, true);
win->selectionRect = RectI(x, y, 0, 0);
win->showSelection = true;
win->mouseAction = MouseAction::Selecting;
bool isShift = IsShiftPressed();
bool isCtrl = IsCtrlPressed();
// Ctrl+drag forces a rectangular selection
if (!isCtrl || isShift) {
DisplayModel* dm = win->AsFixed();
int pageNo = dm->GetPageNoByPoint(PointI(x, y));
if (dm->ValidPageNo(pageNo)) {
PointD pt = dm->CvtFromScreen(PointI(x, y), pageNo);
dm->textSelection->StartAt(pageNo, pt.x, pt.y);
win->mouseAction = MouseAction::SelectingText;
}
}
SetCapture(win->hwndCanvas);
SetTimer(win->hwndCanvas, SMOOTHSCROLL_TIMER_ID, SMOOTHSCROLL_DELAY_IN_MS, nullptr);
win->RepaintAsync();
}示例3: ZoomToSelection
void ZoomToSelection(WindowInfo* win, float factor, bool scrollToFit, bool relative) {
PointI pt;
bool zoomToPt = false;
if (win->AsFixed()) {
DisplayModel* dm = win->AsFixed();
// when not zooming to fit (which contradicts zooming to a specific point), ...
if (!relative && (ZOOM_FIT_PAGE == factor || ZOOM_FIT_CONTENT == factor) && scrollToFit) {
zoomToPt = false;
}
// either scroll towards the center of the current selection (if there is any) ...
else if (win->showSelection && win->currentTab->selectionOnPage) {
RectI selRect;
for (SelectionOnPage& sel : *win->currentTab->selectionOnPage) {
selRect = selRect.Union(sel.GetRect(dm));
}
ClientRect rc(win->hwndCanvas);
pt.x = 2 * selRect.x + selRect.dx - rc.dx / 2;
pt.y = 2 * selRect.y + selRect.dy - rc.dy / 2;
pt.x = limitValue(pt.x, selRect.x, selRect.x + selRect.dx);
pt.y = limitValue(pt.y, selRect.y, selRect.y + selRect.dy);
int pageNo = dm->GetPageNoByPoint(pt);
zoomToPt = dm->ValidPageNo(pageNo) && dm->PageVisible(pageNo);
}
// or towards the top-left-most part of the first visible page
else {
int page = dm->FirstVisiblePageNo();
PageInfo* pageInfo = dm->GetPageInfo(page);
if (pageInfo) {
RectI visible = pageInfo->pageOnScreen.Intersect(win->canvasRc);
pt = visible.TL();
int pageNo = dm->GetPageNoByPoint(pt);
zoomToPt = !visible.IsEmpty() && dm->ValidPageNo(pageNo) && dm->PageVisible(pageNo);
}
}
}
win->ctrl->SetZoomVirtual(factor * (relative ? win->ctrl->GetZoomVirtual(true) : 1), zoomToPt ? &pt : nullptr);
UpdateToolbarState(win);
}