use statictextviews to display coordinates in unitmapper

git-svn-id: http://skia.googlecode.com/svn/trunk@491 2bbb7eff-a529-9590-31e7-b0007b416f81

samplecode/SampleUnitMapper.cpp

@@ -6,9 +6,39 @@
 #include "SkUnitMappers.h"
 #include "SkCubicInterval.h"
 
+#include "SkWidgetViews.h"
+
+static SkStaticTextView* make_textview(SkView* parent,
+                                       const SkRect& bounds,
+                                       const SkPaint& paint) {
+    SkStaticTextView* view = new SkStaticTextView;
+    view->setMode(SkStaticTextView::kFixedSize_Mode);
+    view->setPaint(paint);
+    view->setVisibleP(true);
+    view->setSize(bounds.width(), bounds.height());
+    view->setLoc(bounds.fLeft, bounds.fTop);
+    parent->attachChildToFront(view)->unref();
+    return view;
+}
+
+static void set_scalar(SkStaticTextView* view, SkScalar value) {
+    SkString str;
+    str.appendScalar(value);
+    view->setText(str);
+}
+
 class UnitMapperView : public SkView {
     SkPoint fPts[4];
     SkMatrix fMatrix;
+    SkStaticTextView* fViews[4];
+
+    void setViews() {
+        set_scalar(fViews[0], fPts[1].fX);
+        set_scalar(fViews[1], fPts[1].fY);
+        set_scalar(fViews[2], fPts[2].fX);
+        set_scalar(fViews[3], fPts[2].fY);
+    }
+
 public:
     UnitMapperView() {
         fPts[0].set(0, 0);
@@ -18,6 +48,19 @@ public:
 
         fMatrix.setScale(SK_Scalar1 * 200, -SK_Scalar1 * 200);
         fMatrix.postTranslate(SkIntToScalar(100), SkIntToScalar(300));
+
+        SkRect r = {
+            SkIntToScalar(350), SkIntToScalar(100),
+            SkIntToScalar(500), SkIntToScalar(130)
+        };
+        SkPaint paint;
+        paint.setAntiAlias(true);
+        paint.setTextSize(SkIntToScalar(25));
+        for (int i = 0; i < 4; i++) {
+            fViews[i] = make_textview(this, r, paint);
+            r.offset(0, r.height());
+        }
+        this->setViews();
     }
     
 protected:
@@ -80,26 +123,27 @@ protected:
         return pt;
     }
 
-    SkPoint* hittest(SkScalar x, SkScalar y) {
+    int hittest(SkScalar x, SkScalar y) {
         SkPoint target = { x, y };
         SkPoint pts[2] = { fPts[1], fPts[2] };
         fMatrix.mapPoints(pts, 2);
         for (int i = 0; i < 2; i++) {
             if (SkPoint::Distance(pts[i], target) < SkIntToScalar(4)) {
-                return &fPts[i + 1];
+                return i + 1;
             }
         }
-        return NULL;
+        return -1;
     }
 
     virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
-        fDragPt = hittest(x, y);
+        fDragIndex = hittest(x, y);
-        return fDragPt ? new Click(this) : NULL;
+        return fDragIndex >= 0 ? new Click(this) : NULL;
     }
     
     virtual bool onClick(Click* click) {
-        if (fDragPt) {
+        if (fDragIndex >= 0) {
-            *fDragPt = invertPt(click->fCurr.fX, click->fCurr.fY);
+            fPts[fDragIndex] = invertPt(click->fCurr.fX, click->fCurr.fY);
+            this->setViews();
             this->inval(NULL);
             return true;
         }
@@ -107,7 +151,7 @@ protected:
     }
     
 private:
-    SkPoint* fDragPt;
+    int fDragIndex;
 
     typedef SkView INHERITED;
 };

src/views/SkView.cpp

@@ -98,7 +98,11 @@ void SkView::draw(SkCanvas* canvas)
         if (fParent) {
             fParent->beforeChild(this, canvas);
         }
+
+        int sc = canvas->save();
 		this->onDraw(canvas);
+        canvas->restoreToCount(sc);
+
         if (fParent) {
             fParent->afterChild(this, canvas);
         }

src/views/SkWidgetViews.cpp

@@ -348,171 +348,6 @@ private:
 	typedef SkButtonView INHERITED;
 };
 
-////////////////////////////////////////////////////////////////////////////////////////////
-
-#include "SkTextBox.h"
-
-SkStaticTextView::SkStaticTextView()
-{
-	fMargin.set(0, 0);
-	fMode = kFixedSize_Mode;
-	fSpacingAlign = SkTextBox::kStart_SpacingAlign;
-	
-	init_skin_paint(kStaticText_SkinEnum, &fPaint);
-}
-
-SkStaticTextView::~SkStaticTextView()
-{
-}
-
-void SkStaticTextView::computeSize()
-{
-	if (fMode == kAutoWidth_Mode)
-	{
-		SkScalar width = fPaint.measureText(fText.c_str(), fText.size());
-		this->setWidth(width + fMargin.fX * 2);
-	}
-	else if (fMode == kAutoHeight_Mode)
-	{
-		SkScalar width = this->width() - fMargin.fX * 2;
-		int lines = width > 0 ? SkTextLineBreaker::CountLines(fText.c_str(), fText.size(), fPaint, width) : 0;
-
-		this->setHeight(lines * fPaint.getFontSpacing() + fMargin.fY * 2);
-	}
-}
-
-void SkStaticTextView::setMode(Mode mode)
-{
-	SkASSERT((unsigned)mode < kModeCount);
-
-	if (fMode != mode)
-	{
-		fMode = SkToU8(mode);
-		this->computeSize();
-	}
-}
-
-void SkStaticTextView::setSpacingAlign(SkTextBox::SpacingAlign align)
-{
-	fSpacingAlign = SkToU8(align);
-	this->inval(NULL);
-}
-
-void SkStaticTextView::getMargin(SkPoint* margin) const
-{
-	if (margin)
-		*margin = fMargin;
-}
-
-void SkStaticTextView::setMargin(SkScalar dx, SkScalar dy)
-{
-	if (fMargin.fX != dx || fMargin.fY != dy)
-	{
-		fMargin.set(dx, dy);
-		this->computeSize();
-		this->inval(NULL);
-	}
-}
-
-size_t SkStaticTextView::getText(SkString* text) const
-{
-	if (text)
-		*text = fText;
-	return fText.size();
-}
-
-size_t SkStaticTextView::getText(char text[]) const
-{
-	if (text)
-		memcpy(text, fText.c_str(), fText.size());
-	return fText.size();
-}
-
-void SkStaticTextView::setText(const SkString& text)
-{
-	this->setText(text.c_str(), text.size());
-}
-
-void SkStaticTextView::setText(const char text[])
-{
-	if (text == NULL)
-		text = "";
-	this->setText(text, strlen(text));
-}
-
-void SkStaticTextView::setText(const char text[], size_t len)
-{
-	if (!fText.equals(text, len))
-	{
-		fText.set(text, len);
-		this->computeSize();
-		this->inval(NULL);
-	}
-}
-
-void SkStaticTextView::getPaint(SkPaint* paint) const
-{
-	if (paint)
-		*paint = fPaint;
-}
-
-void SkStaticTextView::setPaint(const SkPaint& paint)
-{
-	if (fPaint != paint)
-	{
-		fPaint = paint;
-		this->computeSize();
-		this->inval(NULL);
-	}
-}
-
-void SkStaticTextView::onDraw(SkCanvas* canvas)
-{
-	this->INHERITED::onDraw(canvas);
-
-	if (fText.isEmpty())
-		return;
-
-	SkTextBox	box;
-
-	box.setMode(fMode == kAutoWidth_Mode ? SkTextBox::kOneLine_Mode : SkTextBox::kLineBreak_Mode);
-	box.setSpacingAlign(this->getSpacingAlign());
-	box.setBox(fMargin.fX, fMargin.fY, this->width() - fMargin.fX, this->height() - fMargin.fY);
-	box.draw(canvas, fText.c_str(), fText.size(), fPaint);
-}
-
-void SkStaticTextView::onInflate(const SkDOM& dom, const SkDOM::Node* node)
-{
-	this->INHERITED::onInflate(dom, node);
-
-	int	index;
-	if ((index = dom.findList(node, "mode", "fixed,auto-width,auto-height")) >= 0)
-		this->setMode((Mode)index);
-	else
-		assert_no_attr(dom, node, "mode");
-
-	if ((index = dom.findList(node, "spacing-align", "start,center,end")) >= 0)
-		this->setSpacingAlign((SkTextBox::SpacingAlign)index);
-	else
-		assert_no_attr(dom, node, "spacing-align");
-
-	SkScalar s[2];
-	if (dom.findScalars(node, "margin", s, 2))
-		this->setMargin(s[0], s[1]);
-	else
-		assert_no_attr(dom, node, "margin");
-
-	const char* text = dom.findAttr(node, "text");
-	if (text)
-		this->setText(text);
-
-	if ((node = dom.getFirstChild(node, "paint")) != NULL &&
-		(node = dom.getFirstChild(node, "screenplay")) != NULL)
-	{
-		inflate_paint(dom, node, &fPaint);
-	}
-}
-
 ////////////////////////////////////////////////////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////////////////////
 

xcode/sampleapp/SampleApp.xcodeproj/project.pbxproj

@@ -34,6 +34,8 @@
 		0001FB9A110E362F00C1D647 /* SkTextureCache.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0001FB93110E362F00C1D647 /* SkTextureCache.cpp */; };
 		000630AD10F4E8F000BC2C23 /* SampleText.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 000630AC10F4E8EF00BC2C23 /* SampleText.cpp */; };
 		001B871E1042184D00C84ED4 /* Forth.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 001B871D1042184D00C84ED4 /* Forth.cpp */; };
+		0021F3A21120B29C0062682F /* SkStaticTextView.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0021F3A11120B29C0062682F /* SkStaticTextView.cpp */; };
+		0021F3D31120B61F0062682F /* SampleUnitMapper.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00995E1510A079D80054AD6D /* SampleUnitMapper.cpp */; };
 		00244D1B10642BBA00B8F4D8 /* SampleStrokePath.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0009E21F1057E96800B0DE6F /* SampleStrokePath.cpp */; };
 		00244D97106A539500B8F4D8 /* SampleXfermodes.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 007A7CB20F01658C00A2D6EE /* SampleXfermodes.cpp */; };
 		00244DBB106A61B700B8F4D8 /* SampleGM.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00244DBA106A61B700B8F4D8 /* SampleGM.cpp */; };
@@ -44,6 +46,7 @@
 		00281D071084ED1200BCCB06 /* SkXMLParser_expat.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00281D061084ED1200BCCB06 /* SkXMLParser_expat.cpp */; };
 		0028847B0EFAB46A0083E387 /* libcore.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 002884510EFAA35C0083E387 /* libcore.a */; };
 		002884BD0EFAB6A30083E387 /* libmaccore.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 002884BC0EFAB69F0083E387 /* libmaccore.a */; };
+		003EE652111239D5001AB759 /* SampleWarp.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 003EE651111239D5001AB759 /* SampleWarp.cpp */; };
 		0041CDDB0F00975E00695E8C /* SampleImageDir.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0041CDDA0F00975E00695E8C /* SampleImageDir.cpp */; };
 		0041CDF30F009ED100695E8C /* SkImageRef.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0041CDF20F009ED100695E8C /* SkImageRef.cpp */; };
 		0041CDF60F009EED00695E8C /* SkImageRef_GlobalPool.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0041CDF50F009EED00695E8C /* SkImageRef_GlobalPool.cpp */; };
@@ -95,7 +98,6 @@
 		00EB4593104DBB18002B413E /* ForthTests.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00EB4592104DBB18002B413E /* ForthTests.cpp */; };
 		00ED55F3104A10EB00F51FF8 /* StdWords.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00ED55F2104A10EB00F51FF8 /* StdWords.cpp */; };
 		00F0441010B447160049C54C /* SamplePathClip.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 007C785D0F3B4C230004B142 /* SamplePathClip.cpp */; };
-		00F0442210B44AFB0049C54C /* SampleUnitMapper.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00995E1510A079D80054AD6D /* SampleUnitMapper.cpp */; };
 		00F0444C10B4569B0049C54C /* SampleLineClipper.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 00F042D410B1CE990049C54C /* SampleLineClipper.cpp */; };
 		00F45DDC10CE94CE00ABEA26 /* SampleTypeface.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 007A7CB00F01658C00A2D6EE /* SampleTypeface.cpp */; };
 		0156F80407C56A3000C6122B /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0156F80307C56A3000C6122B /* Foundation.framework */; };
@@ -198,6 +200,7 @@
 		000630AC10F4E8EF00BC2C23 /* SampleText.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SampleText.cpp; path = ../../samplecode/SampleText.cpp; sourceTree = SOURCE_ROOT; };
 		0009E21F1057E96800B0DE6F /* SampleStrokePath.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SampleStrokePath.cpp; path = ../../samplecode/SampleStrokePath.cpp; sourceTree = SOURCE_ROOT; };
 		001B871D1042184D00C84ED4 /* Forth.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Forth.cpp; path = ../../forth/Forth.cpp; sourceTree = SOURCE_ROOT; };
+		0021F3A11120B29C0062682F /* SkStaticTextView.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SkStaticTextView.cpp; path = ../../src/views/SkStaticTextView.cpp; sourceTree = SOURCE_ROOT; };
 		00244DBA106A61B700B8F4D8 /* SampleGM.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SampleGM.cpp; path = ../../samplecode/SampleGM.cpp; sourceTree = SOURCE_ROOT; };
 		00244DC7106A630100B8F4D8 /* bitmapfilters.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = bitmapfilters.cpp; path = ../../gm/bitmapfilters.cpp; sourceTree = SOURCE_ROOT; };
 		00244DC8106A630100B8F4D8 /* filltypes.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = filltypes.cpp; path = ../../gm/filltypes.cpp; sourceTree = SOURCE_ROOT; };
@@ -213,6 +216,7 @@
 		002884490EFAA35C0083E387 /* core.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = core.xcodeproj; path = ../core/core.xcodeproj; sourceTree = SOURCE_ROOT; };
 		002884B40EFAB69F0083E387 /* maccore.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = maccore.xcodeproj; path = ../maccore/maccore.xcodeproj; sourceTree = SOURCE_ROOT; };
 		003145310FB9B48F00B10956 /* SampleShapes.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SampleShapes.cpp; path = ../../samplecode/SampleShapes.cpp; sourceTree = SOURCE_ROOT; };
+		003EE651111239D5001AB759 /* SampleWarp.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SampleWarp.cpp; path = ../../samplecode/SampleWarp.cpp; sourceTree = SOURCE_ROOT; };
 		0041CDDA0F00975E00695E8C /* SampleImageDir.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SampleImageDir.cpp; path = ../../samplecode/SampleImageDir.cpp; sourceTree = SOURCE_ROOT; };
 		0041CDF20F009ED100695E8C /* SkImageRef.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SkImageRef.cpp; path = ../../src/images/SkImageRef.cpp; sourceTree = SOURCE_ROOT; };
 		0041CDF50F009EED00695E8C /* SkImageRef_GlobalPool.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SkImageRef_GlobalPool.cpp; path = ../../src/images/SkImageRef_GlobalPool.cpp; sourceTree = SOURCE_ROOT; };
@@ -314,6 +318,7 @@
 		00003C610EFC2287000FF73A /* samples */ = {
 			isa = PBXGroup;
 			children = (
+				003EE651111239D5001AB759 /* SampleWarp.cpp */,
 				000630AC10F4E8EF00BC2C23 /* SampleText.cpp */,
 				00281C771083CFA100BCCB06 /* SampleAnimator.cpp */,
 				0086CBF010A8661F00C8BF27 /* SampleAvoid.cpp */,
@@ -397,6 +402,7 @@
 				00003C710EFC22CE000FF73A /* SkView.cpp */,
 				00003C720EFC22CE000FF73A /* SkViewPriv.cpp */,
 				00003C730EFC22CE000FF73A /* SkWindow.cpp */,
+				0021F3A11120B29C0062682F /* SkStaticTextView.cpp */,
 			);
 			name = views;
 			sourceTree = "<group>";
@@ -729,7 +735,6 @@
 				0086CBF110A8661F00C8BF27 /* SampleAvoid.cpp in Sources */,
 				0086CC1C10A9B6A600C8BF27 /* SamplePicture.cpp in Sources */,
 				00F0441010B447160049C54C /* SamplePathClip.cpp in Sources */,
-				00F0442210B44AFB0049C54C /* SampleUnitMapper.cpp in Sources */,
 				00F0444C10B4569B0049C54C /* SampleLineClipper.cpp in Sources */,
 				00575A1810BB02CF00A43B94 /* SampleEffects.cpp in Sources */,
 				00575A3B10BB05FE00A43B94 /* SampleArc.cpp in Sources */,
@@ -747,6 +752,9 @@
 				0001FB98110E362F00C1D647 /* SkGLState.cpp in Sources */,
 				0001FB99110E362F00C1D647 /* SkGLTextCache.cpp in Sources */,
 				0001FB9A110E362F00C1D647 /* SkTextureCache.cpp in Sources */,
+				003EE652111239D5001AB759 /* SampleWarp.cpp in Sources */,
+				0021F3A21120B29C0062682F /* SkStaticTextView.cpp in Sources */,
+				0021F3D31120B61F0062682F /* SampleUnitMapper.cpp in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};