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Added first/last page buttons contributed by Dr.H.Reh.

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10616 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Pfeiffer
2005-01-08 14:08:54 +00:00
parent 66a207d9bd
commit 0826cc43ae
2 changed files with 71 additions and 16 deletions
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src/add-ons/print/drivers/preview/Preview.cpp
+57 -11
View File
@@ -227,16 +227,32 @@ int PreviewView::NumberOfPages() const {
void PreviewView::ShowNextPage() {
if (!ShowsLastPage()) {
fPage ++; Invalidate();
fPage ++;
Invalidate();
}
}
void PreviewView::ShowPrevPage() {
if (!ShowsFirstPage()) {
fPage --; Invalidate();
fPage --;
Invalidate();
}
}
void PreviewView::ShowFirstPage() {
if (!ShowsFirstPage()) {
fPage = 0;
Invalidate();
}
}
void PreviewView::ShowLastPage() {
if (!ShowsLastPage()) {
fPage = NumberOfPages()-1;
Invalidate();
}
}
bool PreviewView::CanZoomIn() const {
return fZoom < 4;
}
@@ -247,13 +263,15 @@ bool PreviewView::CanZoomOut() const {
void PreviewView::ZoomIn() {
if (CanZoomIn()) {
fZoom ++; FixScrollbars(); Invalidate();
fZoom ++; FixScrollbars();
Invalidate();
}
}
void PreviewView::ZoomOut() {
if (CanZoomOut()) {
fZoom --; FixScrollbars(); Invalidate();
fZoom --; FixScrollbars();
Invalidate();
}
}
@@ -293,8 +311,8 @@ void PreviewView::FixScrollbars() {
PreviewWindow::PreviewWindow(BFile* jobFile)
: BlockingWindow(BRect(20, 24, 400, 600), "Preview", B_DOCUMENT_WINDOW, 0)
{
const float kButtonDistance = 30;
const float kPageTextDistance = 15;
const float kButtonDistance = 15;
const float kPageTextDistance = 10;
float top = 7;
float left = 20;
@@ -305,17 +323,31 @@ PreviewWindow::PreviewWindow(BFile* jobFile)
r.bottom = r.IntegerHeight() - B_H_SCROLL_BAR_HEIGHT; r.top = 0;
// add navigation and zoom buttons
// largest button first to get its size
fPrev = new BButton(BRect(left, top, left+10, top+10), "Prev", "Previous Page", new BMessage(MSG_PREV_PAGE));
AddChild(fPrev);
fPrev->ResizeToPreferred();
width = fPrev->Bounds().Width()+1;
height = fPrev->Bounds().Height()+1;
fFirst = new BButton(BRect(left, top, left+10, top+10), "First", "First Page", new BMessage(MSG_FIRST_PAGE));
AddChild(fFirst);
fFirst->ResizeTo(width, height);
left = fFirst->Frame().right + kButtonDistance;
// move Previous Page button after First Page button
fPrev->MoveTo(left, top);
left = fPrev->Frame().right + kButtonDistance;
fNext = new BButton(BRect(left, top, left+10, top+10), "Next", "Next Page", new BMessage(MSG_NEXT_PAGE));
AddChild(fNext);
fNext->ResizeTo(width, height);
left = fNext->Frame().right + kPageTextDistance;
left = fNext->Frame().right + kButtonDistance;
fLast = new BButton(BRect(left, top, left+10, top+10), "Last", "Last Page", new BMessage(MSG_LAST_PAGE));
AddChild(fLast);
fLast->ResizeTo(width, height);
left = fLast->Frame().right + kPageTextDistance;
fPageText = new BStringView(BRect(left, top, left + 100, top + 15), "pageText", "");
fPageText->SetAlignment(B_ALIGN_CENTER);
@@ -390,8 +422,10 @@ void PreviewWindow::ResizeToPage() {
}
void PreviewWindow::UpdateControls() {
fFirst->SetEnabled(!fPreview->ShowsFirstPage());
fPrev->SetEnabled(!fPreview->ShowsFirstPage());
fNext->SetEnabled(!fPreview->ShowsLastPage());
fLast->SetEnabled(!fPreview->ShowsLastPage());
fZoomIn->SetEnabled(fPreview->CanZoomIn());
fZoomOut->SetEnabled(fPreview->CanZoomOut());
@@ -409,13 +443,25 @@ void PreviewWindow::UpdateControls() {
void PreviewWindow::MessageReceived(BMessage* m) {
switch (m->what) {
case MSG_NEXT_PAGE: fPreview->ShowNextPage();
case MSG_FIRST_PAGE:
fPreview->ShowFirstPage();
break;
case MSG_PREV_PAGE: fPreview->ShowPrevPage();
case MSG_NEXT_PAGE:
fPreview->ShowNextPage();
break;
case MSG_ZOOM_IN: fPreview->ZoomIn(); ResizeToPage();
case MSG_PREV_PAGE:
fPreview->ShowPrevPage();
break;
case MSG_LAST_PAGE:
fPreview->ShowLastPage();
break;
case MSG_ZOOM_OUT: fPreview->ZoomOut(); ResizeToPage();
case MSG_ZOOM_IN:
fPreview->ZoomIn();
ResizeToPage();
break;
case MSG_ZOOM_OUT:
fPreview->ZoomOut();
ResizeToPage();
break;
default:
inherited::MessageReceived(m); return;
src/add-ons/print/drivers/preview/Preview.h
+14 -5
View File
@@ -81,6 +81,8 @@ public:
int NumberOfPages() const;
void ShowNextPage();
void ShowPrevPage();
void ShowFirstPage();
void ShowLastPage();
bool CanZoomIn() const;
bool CanZoomOut() const;
@@ -89,17 +91,24 @@ public:
};
class PreviewWindow : public BlockingWindow {
BButton *fNext, *fPrev, *fZoomIn, *fZoomOut;
BButton *fFirst;
BButton *fNext;
BButton *fPrev;
BButton *fLast;
BButton *fZoomIn;
BButton *fZoomOut;
BStringView* fPageText;
PreviewView* fPreview;
BScrollView* fPreviewScroller;
float fButtonBarHeight;
enum {
MSG_NEXT_PAGE = 'pwnp',
MSG_PREV_PAGE = 'pwpp',
MSG_ZOOM_IN = 'pwzi',
MSG_ZOOM_OUT = 'pwzo'
MSG_FIRST_PAGE = 'pwfp',
MSG_NEXT_PAGE = 'pwnp',
MSG_PREV_PAGE = 'pwpp',
MSG_LAST_PAGE = 'pwlp',
MSG_ZOOM_IN = 'pwzi',
MSG_ZOOM_OUT = 'pwzo',
};
void ResizeToPage();