* less code in the window ctor
* draw margins around the content * always center the preview in its window git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24670 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Karsten Heimrich
parent
290946ce80
commit
ae824ff9c8
@ -8,17 +8,23 @@
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* julun <host.haiku@gmx.de>
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*/
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#include <stdlib.h>
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#include <Application.h>
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#include <Debug.h>
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#include <String.h>
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#include "BeUtils.h"
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#include "Utils.h"
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#include "Preview.h"
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#include <stdlib.h>
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#include <Application.h>
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#include <Button.h>
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#include <Debug.h>
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#include <String.h>
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#include <ScrollView.h>
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#include <StringView.h>
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#include <TextControl.h>
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// #pragma mark - PreviewPage
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@ -60,11 +66,11 @@ PreviewPage::InitCheck() const
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void
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PreviewPage::Draw(BView* view)
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PreviewPage::Draw(BView* view, const BRect& printRect)
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{
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ASSERT(fStatus == B_OK);
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for (int32 i = 0; i < fNumberOfPictures; i++)
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view->DrawPicture(&fPictures[i], fPoints[i]);
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view->DrawPicture(&fPictures[i], printRect.LeftTop() + fPoints[i]);
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}
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@ -91,7 +97,7 @@ const uint8 ZOOM_OUT[] = { 16, 1, 6, 6, 0, 0, 15, 128, 48, 96, 32, 32, 64, 16,
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PreviewView::PreviewView(BFile* jobFile, BRect rect)
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: BView(rect, "PreviewView", B_FOLLOW_ALL, B_WILL_DRAW | B_FRAME_EVENTS |
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B_NAVIGABLE)
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B_NAVIGABLE | B_SUBPIXEL_PRECISE)
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, fPage(0)
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, fZoom(0)
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, fTracking(false)
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@ -124,6 +130,7 @@ PreviewView::Draw(BRect rect)
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if (_IsPageValid()) {
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_DrawPageFrame(rect);
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_DrawPage(rect);
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_DrawMarginFrame(rect);
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}
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}
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}
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@ -132,6 +139,7 @@ PreviewView::Draw(BRect rect)
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void
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PreviewView::FrameResized(float width, float height)
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{
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Invalidate();
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FixScrollbars();
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}
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@ -257,7 +265,7 @@ void
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PreviewView::ShowPrevPage()
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{
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if (!ShowsFirstPage()) {
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fPage --;
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fPage--;
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Invalidate();
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}
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}
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@ -267,7 +275,7 @@ void
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PreviewView::ShowNextPage()
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{
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if (!ShowsLastPage()) {
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fPage ++;
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fPage++;
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Invalidate();
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}
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}
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@ -317,7 +325,8 @@ void
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PreviewView::ZoomIn()
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{
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if (CanZoomIn()) {
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fZoom ++; FixScrollbars();
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fZoom++;
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FixScrollbars();
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Invalidate();
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}
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}
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@ -334,7 +343,8 @@ void
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PreviewView::ZoomOut()
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{
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if (CanZoomOut()) {
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fZoom --; FixScrollbars();
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fZoom--;
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FixScrollbars();
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Invalidate();
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}
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}
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@ -363,18 +373,18 @@ PreviewView::FixScrollbars()
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y = 0.0;
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BScrollBar * scroll = ScrollBar(B_HORIZONTAL);
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scroll->SetRange (0.0, x);
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scroll->SetProportion ((width - x) / width);
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scroll->SetRange(0.0, x);
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scroll->SetProportion((width - x) / width);
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float bigStep = frame.Width() - 2;
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float smallStep = bigStep / 10.;
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scroll->SetSteps (smallStep, bigStep);
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scroll->SetSteps(smallStep, bigStep);
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scroll = ScrollBar (B_VERTICAL);
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scroll->SetRange (0.0, y);
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scroll->SetProportion ((height - y) / height);
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scroll = ScrollBar(B_VERTICAL);
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scroll->SetRange(0.0, y);
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scroll->SetProportion((height - y) / height);
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bigStep = frame.Height() - 2;
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smallStep = bigStep / 10.;
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scroll->SetSteps (smallStep, bigStep);
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scroll->SetSteps(smallStep, bigStep);
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}
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@ -461,6 +471,33 @@ PreviewView::_IsPageLoaded(int32 page) const
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}
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BRect
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PreviewView::_ContentRect() const
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{
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float offsetX = kPreviewLeftMargin;
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float offsetY = kPreviewTopMargin;
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BRect rect = Bounds();
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BRect paperRect = _PageRect();
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float min, max;
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ScrollBar(B_HORIZONTAL)->GetRange(&min, &max);
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if (min == max) {
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if ((paperRect.right + 2 * offsetX) < rect.right)
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offsetX = (rect.right - (paperRect.right + 2 * offsetX)) / 2;
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}
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ScrollBar(B_VERTICAL)->GetRange(&min, &max);
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if (min == max) {
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if ((paperRect.bottom + 2 * offsetY) < rect.bottom)
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offsetY = (rect.bottom - (paperRect.bottom + 2 * offsetY)) / 2;
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}
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paperRect.OffsetTo(offsetX, offsetY);
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return paperRect;
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}
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void
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PreviewView::_DrawPageFrame(BRect rect)
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{
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@ -473,8 +510,8 @@ PreviewView::_DrawPageFrame(BRect rect)
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PushState();
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// draw page border around page
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BRect r(_PageRect().InsetByCopy(-1, -1));
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r.OffsetTo(kPreviewLeftMargin-1, kPreviewTopMargin-1);
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BRect r(_ContentRect().InsetByCopy(-1, -1));
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SetHighColor(frameColor);
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StrokeRect(r);
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@ -495,30 +532,55 @@ PreviewView::_DrawPageFrame(BRect rect)
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}
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BRect
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ScaleDown(BRect rect, float factor)
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{
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rect.left /= factor;
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rect.top /= factor;
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rect.right /= factor;
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rect.bottom /= factor;
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return rect;
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}
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void
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PreviewView::_DrawPage(BRect rect)
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{
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// constrain clipping region to printable rectangle
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BRect r(_PrintableRect());
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r.OffsetBy(kPreviewLeftMargin, kPreviewTopMargin);
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BRegion clip(r);
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BRect printRect(_PrintableRect());
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printRect.OffsetBy(_ContentRect().LeftTop());
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printRect = ScaleDown(printRect, _ZoomFactor());
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BRegion clip(printRect);
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ConstrainClippingRegion(&clip);
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// draw page contents
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PushState();
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// print job coordinates are relative to the printable rect
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BRect printRect = fReader.PrintableRect();
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SetOrigin(kPreviewLeftMargin + printRect.left * _ZoomFactor(),
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kPreviewTopMargin + printRect.top * _ZoomFactor());
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SetScale(_ZoomFactor());
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fCachedPage->Draw(this, printRect);
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SetScale(1.0);
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ConstrainClippingRegion(NULL);
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}
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PushState();
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fCachedPage->Draw(this);
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PopState();
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PopState();
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void
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PreviewView::_DrawMarginFrame(BRect rect)
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{
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BRect paperRect(_ContentRect());
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BRect printRect(_PrintableRect());
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printRect.OffsetBy(paperRect.LeftTop());
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BeginLineArray(4);
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SetHighColor(ui_color(B_PANEL_BACKGROUND_COLOR));
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StrokeLine(BPoint(printRect.left, paperRect.top),
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BPoint(printRect.left, paperRect.bottom), B_MIXED_COLORS);
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StrokeLine(BPoint(printRect.right, paperRect.top),
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BPoint(printRect.right, paperRect.bottom), B_MIXED_COLORS);
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StrokeLine(BPoint(paperRect.left, printRect.top),
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BPoint(paperRect.right, printRect.top), B_MIXED_COLORS);
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StrokeLine(BPoint(paperRect.left, printRect.bottom),
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BPoint(paperRect.right, printRect.bottom), B_MIXED_COLORS);
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EndLineArray();
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}
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@ -530,100 +592,72 @@ PreviewWindow::PreviewWindow(BFile* jobFile)
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B_ASYNCHRONOUS_CONTROLS)
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, fButtonBarHeight(0.0)
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{
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const float kButtonDistance = 15;
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const float kPageTextDistance = 10;
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float top = 7;
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float left = 20;
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float width, height;
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BRect r = Frame();
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r.OffsetTo(B_ORIGIN);
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r.right = r.IntegerWidth() - B_V_SCROLL_BAR_WIDTH;
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r.bottom = r.IntegerHeight() - B_H_SCROLL_BAR_HEIGHT;
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// add navigation and zoom buttons
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// largest button first to get its size
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fPrev = new BButton(BRect(left, top, left+10, top+10), "Prev", "Previous Page",
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new BMessage(MSG_PREV_PAGE));
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BRect bounds(Bounds());
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bounds.OffsetBy(10.0, 10.0);
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fFirst = new BButton(bounds, "first", "First Page", new BMessage(MSG_FIRST_PAGE));
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AddChild(fFirst);
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fFirst->ResizeToPreferred();
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bounds.OffsetBy(fFirst->Bounds().Width() + 10.0, 0.0);
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fPrev = new BButton(bounds, "previous", "Previous Page", new BMessage(MSG_PREV_PAGE));
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AddChild(fPrev);
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fPrev->ResizeToPreferred();
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width = fPrev->Bounds().Width()+1;
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height = fPrev->Bounds().Height()+1;
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fFirst = new BButton(BRect(left, top, left+10, top+10), "First", "First Page",
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new BMessage(MSG_FIRST_PAGE));
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AddChild(fFirst);
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fFirst->ResizeTo(width, height);
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left = fFirst->Frame().right + kButtonDistance;
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// move Previous Page button after First Page button
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fPrev->MoveTo(left, top);
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left = fPrev->Frame().right + kButtonDistance;
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fNext = new BButton(BRect(left, top, left+10, top+10), "Next", "Next Page",
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new BMessage(MSG_NEXT_PAGE));
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bounds.OffsetBy(fPrev->Bounds().Width() + 10.0, 0.0);
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fNext = new BButton(bounds, "next", "Next Page", new BMessage(MSG_NEXT_PAGE));
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AddChild(fNext);
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fNext->ResizeTo(width, height);
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left = fNext->Frame().right + kButtonDistance;
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fLast = new BButton(BRect(left, top, left+10, top+10), "Last", "Last Page",
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new BMessage(MSG_LAST_PAGE));
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fNext->ResizeToPreferred();
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bounds.OffsetBy(fNext->Bounds().Width() + 10.0, 0.0);
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fLast = new BButton(bounds, "last", "Last Page", new BMessage(MSG_LAST_PAGE));
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AddChild(fLast);
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fLast->ResizeTo(width, height);
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left = fLast->Frame().right + kPageTextDistance;
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// page number text
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fPageNumber = new BTextControl(BRect(left, top+3, left+10, top+10), "FindPage",
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"", "", new BMessage(MSG_FIND_PAGE));
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fPageNumber->SetAlignment(B_ALIGN_RIGHT, B_ALIGN_RIGHT);
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uint32 num;
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for (num = 0; num <= 255; num++) {
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fPageNumber->TextView()->DisallowChar(num);
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}
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for (num = 0; num <= 9; num++) {
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fPageNumber->TextView()->AllowChar('0' + num);
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}
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fPageNumber->TextView()-> SetMaxBytes(5);
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fLast->ResizeToPreferred();
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bounds = fLast->Frame();
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bounds.OffsetBy(fLast->Bounds().Width() + 10.0, 0.0);
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fPageNumber = new BTextControl(bounds, "numOfPage", "99", "",
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new BMessage(MSG_FIND_PAGE));
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AddChild(fPageNumber);
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fPageNumber->ResizeTo(be_plain_font->StringWidth("999999") + 10, height);
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left = fPageNumber->Frame().right + 5;
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fPageNumber->ResizeToPreferred();
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fPageNumber->SetDivider(0.0);
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fPageNumber->SetAlignment(B_ALIGN_RIGHT, B_ALIGN_RIGHT);
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fPageNumber->MoveBy(0.0, bounds.Height() - fPageNumber->Bounds().Height());
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// number of pages text
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fPageText = new BStringView(BRect(left, top, left + 100, top + 15), "pageText", "");
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uint32 num;
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for (num = 0; num <= 255; num++)
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fPageNumber->TextView()->DisallowChar(num);
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for (num = 0; num <= 9; num++)
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fPageNumber->TextView()->AllowChar('0' + num);
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fPageNumber->TextView()-> SetMaxBytes(5);
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bounds.OffsetBy(fPageNumber->Bounds().Width() + 5.0, 0.0);
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fPageText = new BStringView(bounds, "pageText", "");
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AddChild(fPageText);
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// estimate max. width
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float pageTextWidth = fPageText->StringWidth("of 99999 Pages");
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// estimate height
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BFont font;
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fPageText->GetFont(&font);
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float pageTextHeight = font.Size() + 2;
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// resize to estimated size
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fPageText->ResizeTo(pageTextWidth, pageTextHeight);
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left += pageTextWidth + kPageTextDistance;
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fPageText->MoveBy(0, (height - font.Size()) / 2);
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fPageText->ResizeTo(fPageText->StringWidth("of 99999 Pages"),
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fFirst->Bounds().Height());
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fZoomIn = new BButton(BRect(left, top, left+10, top+10), "ZoomIn", "Zoom In",
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new BMessage(MSG_ZOOM_IN));
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bounds.OffsetBy(fPageText->Bounds().Width() + 10.0, 0.0);
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fZoomIn = new BButton(bounds, "zoomIn", "Zoom In", new BMessage(MSG_ZOOM_IN));
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AddChild(fZoomIn);
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fZoomIn->ResizeTo(width, height);
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left = fZoomIn->Frame().right + kButtonDistance;
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fZoomIn->ResizeToPreferred();
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fZoomOut = new BButton(BRect(left, top, left+10, top+10), "ZoomOut", "Zoom Out",
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new BMessage(MSG_ZOOM_OUT));
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bounds.OffsetBy(fZoomIn->Bounds().Width() + 10.0, 0.0);
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fZoomOut = new BButton(bounds, "ZoomOut", "Zoom Out", new BMessage(MSG_ZOOM_OUT));
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AddChild(fZoomOut);
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fZoomOut->ResizeTo(width, height);
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fZoomOut->ResizeToPreferred();
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fButtonBarHeight = fZoomOut->Frame().bottom + 7;
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// add preview view
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r.top = fButtonBarHeight;
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fPreview = new PreviewView(jobFile, r);
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fButtonBarHeight = fZoomOut->Frame().bottom + 10.0;
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bounds = Bounds();
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bounds.top = fButtonBarHeight;
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bounds.right -= B_V_SCROLL_BAR_WIDTH;
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bounds.bottom -= B_H_SCROLL_BAR_HEIGHT;
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fPreview = new PreviewView(jobFile, bounds);
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fPreviewScroller = new BScrollView("PreviewScroller", fPreview, B_FOLLOW_ALL,
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0, true, true, B_FANCY_BORDER);
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B_FRAME_EVENTS, true, true, B_FANCY_BORDER);
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fPreviewScroller->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
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AddChild(fPreviewScroller);
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@ -662,12 +696,10 @@ PreviewWindow::MessageReceived(BMessage* m)
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case MSG_ZOOM_IN:
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fPreview->ZoomIn();
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_ResizeToPage();
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break;
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case MSG_ZOOM_OUT:
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fPreview->ZoomOut();
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_ResizeToPage();
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break;
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case B_MODIFIERS_CHANGED:
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@ -31,7 +31,7 @@ public:
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PreviewPage(int32 page, PrintJobPage* pjp);
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~PreviewPage();
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void Draw(BView* view);
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void Draw(BView* view, const BRect& printRect);
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status_t InitCheck() const;
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int32 Page() const { return fPage; }
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@ -91,8 +91,10 @@ private:
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bool _IsPageValid() const;
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bool _IsPageLoaded(int32 page) const;
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BRect _ContentRect() const;
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void _DrawPageFrame(BRect rect);
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void _DrawPage(BRect updateRect);
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void _DrawMarginFrame(BRect rect);
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private:
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int32 fPage;
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