Show current displayed page number and added ability to scale the page contents contributed by Dr.H.Reh.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10608 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/print/drivers/preview/PageSetupWindow.cpp

@@ -29,6 +29,8 @@ THE SOFTWARE.
 
 */
 
+#include <stdlib.h>
+
 #include <InterfaceKit.h>
 #include <SupportKit.h>
 #include "PrinterDriver.h"
@@ -196,8 +198,7 @@ PageSetupWindow::PageSetupWindow(BMessage *msg, const char *printerName)
 	mf->MenuItem()->SetLabel(item->Label());
 
 	// add orientation menu
-	y += h + kMargin;
+	y += h + kMargin;	 
-	 
 	m = new BPopUpMenu("orientation");
 	m->SetRadioMode(true);
 	
@@ -231,6 +232,28 @@ PageSetupWindow::PageSetupWindow(BMessage *msg, const char *printerName)
 ///////////////////
 	item->SetMarked(true);
 	mf->MenuItem()->SetLabel(item->Label());
+	
+	// add scale text control
+	y += h + kMargin;	 
+	BString scale;
+	float scale0;
+	if (fSetupMsg->FindFloat("scale", &scale0) == B_OK) {
+		scale << (int)(100.0 * scale0);
+	} else {
+		scale = "100";
+	}
+	fScaleControl = new BTextControl(BRect(x, y, x + 100, y + 20), "scale", "Scale [%]:", 
+									scale.String(),
+	                                NULL, B_FOLLOW_RIGHT);
+	int num;
+	for (num = 0; num <= 255; num++) {
+		fScaleControl->TextView()->DisallowChar(num);
+	}
+	for (num = 0; num <= 9; num++) {
+		fScaleControl->TextView()->AllowChar('0' + num);
+	}
+
+	panel->AddChild(fScaleControl);	
 
 	// add a "OK" button, and make it default
 	button 	= new BButton(r, NULL, "OK", new BMessage(OK_MSG), 
@@ -319,6 +342,17 @@ PageSetupWindow::UpdateSetupMessage()
 			fSetupMsg->AddInt32("units", units);
 		}	
 	}
+	
+	// scaling factor
+	float scale = atoi(fScaleControl->Text()) / 100.0;
+	if (scale <= 0.0) { // sanity check
+		scale = 1.0;
+	}
+	if (fSetupMsg->HasFloat("scale")) {
+		fSetupMsg->ReplaceFloat("scale", scale);
+	} else {
+		fSetupMsg->AddFloat("scale", scale);
+	}
 }
 
 

src/add-ons/print/drivers/preview/PageSetupWindow.h

@@ -68,6 +68,7 @@ private:
 	BMessage *				fSetupMsg;
 	BMenuField *			fPageSizeMenu;
 	BMenuField *			fOrientationMenu;
+	BTextControl *          fScaleControl;
 		
 	void					UpdateSetupMessage();
 

src/add-ons/print/drivers/preview/Preview.cpp

@@ -28,6 +28,7 @@ THE SOFTWARE.
 */
 
 #include <Debug.h>
+#include <String.h>
 
 #include "Preview.h"
 
@@ -174,16 +175,16 @@ void PreviewView::DrawPage(BRect rect)
 	// draw page contents
 	PushState();
 	
+	// print job coordinates are relative to the printable rect
 	BRect printRect = fReader.PrintableRect();
 	SetOrigin(kPreviewLeftMargin + printRect.left*ZoomFactor(), 
 		kPreviewTopMargin + printRect.top*ZoomFactor() );
 	
-	SetScale(ZoomFactor());
+	SetScale(ZoomFactor() * fReader.GetScale());
 	fCachedPage->Draw(this);
 	PopState();
 }
 
-
 void PreviewView::Draw(BRect rect) {
 	if (fReader.InitCheck() == B_OK) {
 		if (!IsPageLoaded(fPage)) {
@@ -280,6 +281,9 @@ 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;
+	
 	float top = 7;
 	float left = 20;
 	float width, height;
@@ -294,17 +298,32 @@ PreviewWindow::PreviewWindow(BFile* jobFile)
 	fPrev->ResizeToPreferred();
 	width = fPrev->Bounds().Width()+1;
 	height = fPrev->Bounds().Height()+1;
-	left = fPrev->Frame().right + 30;
+	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 + 70;
+	left = fNext->Frame().right + kPageTextDistance;
+	
+	fPageText = new BStringView(BRect(left, top, left + 100, top + 15), "pageText", "");
+	fPageText->SetAlignment(B_ALIGN_CENTER);
+	AddChild(fPageText);
+		// estimate max. width
+	float pageTextWidth = fPageText->StringWidth("Page 99999 of 99999 Pages");
+		// estimate height
+	BFont font;
+	fPageText->GetFont(&font);
+	float pageTextHeight = font.Size() + 2;
+		// resize to estimated size
+	fPageText->ResizeTo(pageTextWidth, pageTextHeight);
+	left += pageTextWidth + kPageTextDistance;
+	fPageText->MoveBy(0, (height - font.Size()) / 2);
+	
 	
 	fZoomIn = new BButton(BRect(left, top, left+10, top+10), "ZoomIn", "Zoom In", new BMessage(MSG_ZOOM_IN));
 	AddChild(fZoomIn);
 	fZoomIn->ResizeTo(width, height);
-	left = fZoomIn->Frame().right + 30;
+	left = fZoomIn->Frame().right + kButtonDistance;
 	
 	fZoomOut = new BButton(BRect(left, top, left+10, top+10), "ZoomOut", "Zoom Out", new BMessage(MSG_ZOOM_OUT));
 	AddChild(fZoomOut);
@@ -363,6 +382,17 @@ void PreviewWindow::UpdateControls() {
 	fNext->SetEnabled(!fPreview->ShowsLastPage());
 	fZoomIn->SetEnabled(fPreview->CanZoomIn());
 	fZoomOut->SetEnabled(fPreview->CanZoomOut());
+	
+	BString text("Page ");
+	text << fPreview->CurrentPage() 
+		<< " of " 
+		<< fPreview->NumberOfPages();
+	if (fPreview->NumberOfPages() == 1) {
+		text << " Page";
+	} else {
+		text << " Pages";
+	}
+	fPageText->SetText(text.String());
 }
 
 void PreviewWindow::MessageReceived(BMessage* m) {

src/add-ons/print/drivers/preview/Preview.h

@@ -76,6 +76,7 @@ public:
 	
 	bool ShowsFirstPage() const;
 	bool ShowsLastPage() const;
+	int CurrentPage() const { return fPage + 1; }
 	int NumberOfPages() const;
 	void ShowNextPage();
 	void ShowPrevPage();
@@ -88,6 +89,7 @@ public:
 
 class PreviewWindow : public BlockingWindow {
 	BButton *fNext, *fPrev, *fZoomIn, *fZoomOut;
+	BStringView* fPageText;
 	PreviewView* fPreview;
 	BScrollView* fPreviewScroller;
 	float fButtonBarHeight;