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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkWidgetViews.h"
#include "SkTextBox.h"
#ifdef SK_DEBUG
static void assert_no_attr(const SkDOM& dom, const SkDOM::Node* node, const char attr[])
{
const char* value = dom.findAttr(node, attr);
if (value)
SkDebugf("unknown attribute %s=\"%s\"\n", attr, value);
}
#else
#define assert_no_attr(dom, node, attr)
#endif
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)
{
if (false) { // avoid bit rot, suppress warning
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)
{
// FIXME: Including inflate_paint causes Windows build to fail -- it complains
// that SKListView::SkListView is undefined.
#if 0
inflate_paint(dom, node, &fPaint);
#endif
}
}
}
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