1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/views/animated/SkStaticTextView.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,191 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2011 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +#include "SkWidgetViews.h"
1.12 +#include "SkTextBox.h"
1.13 +
1.14 +#ifdef SK_DEBUG
1.15 +static void assert_no_attr(const SkDOM& dom, const SkDOM::Node* node, const char attr[])
1.16 +{
1.17 + const char* value = dom.findAttr(node, attr);
1.18 + if (value)
1.19 + SkDebugf("unknown attribute %s=\"%s\"\n", attr, value);
1.20 +}
1.21 +#else
1.22 + #define assert_no_attr(dom, node, attr)
1.23 +#endif
1.24 +
1.25 +SkStaticTextView::SkStaticTextView()
1.26 +{
1.27 + fMargin.set(0, 0);
1.28 + fMode = kFixedSize_Mode;
1.29 + fSpacingAlign = SkTextBox::kStart_SpacingAlign;
1.30 +
1.31 +// init_skin_paint(kStaticText_SkinEnum, &fPaint);
1.32 +}
1.33 +
1.34 +SkStaticTextView::~SkStaticTextView()
1.35 +{
1.36 +}
1.37 +
1.38 +void SkStaticTextView::computeSize()
1.39 +{
1.40 + if (fMode == kAutoWidth_Mode)
1.41 + {
1.42 + SkScalar width = fPaint.measureText(fText.c_str(), fText.size());
1.43 + this->setWidth(width + fMargin.fX * 2);
1.44 + }
1.45 + else if (fMode == kAutoHeight_Mode)
1.46 + {
1.47 + SkScalar width = this->width() - fMargin.fX * 2;
1.48 + int lines = width > 0 ? SkTextLineBreaker::CountLines(fText.c_str(), fText.size(), fPaint, width) : 0;
1.49 +
1.50 + this->setHeight(lines * fPaint.getFontSpacing() + fMargin.fY * 2);
1.51 + }
1.52 +}
1.53 +
1.54 +void SkStaticTextView::setMode(Mode mode)
1.55 +{
1.56 + SkASSERT((unsigned)mode < kModeCount);
1.57 +
1.58 + if (fMode != mode)
1.59 + {
1.60 + fMode = SkToU8(mode);
1.61 + this->computeSize();
1.62 + }
1.63 +}
1.64 +
1.65 +void SkStaticTextView::setSpacingAlign(SkTextBox::SpacingAlign align)
1.66 +{
1.67 + fSpacingAlign = SkToU8(align);
1.68 + this->inval(NULL);
1.69 +}
1.70 +
1.71 +void SkStaticTextView::getMargin(SkPoint* margin) const
1.72 +{
1.73 + if (margin)
1.74 + *margin = fMargin;
1.75 +}
1.76 +
1.77 +void SkStaticTextView::setMargin(SkScalar dx, SkScalar dy)
1.78 +{
1.79 + if (fMargin.fX != dx || fMargin.fY != dy)
1.80 + {
1.81 + fMargin.set(dx, dy);
1.82 + this->computeSize();
1.83 + this->inval(NULL);
1.84 + }
1.85 +}
1.86 +
1.87 +size_t SkStaticTextView::getText(SkString* text) const
1.88 +{
1.89 + if (text)
1.90 + *text = fText;
1.91 + return fText.size();
1.92 +}
1.93 +
1.94 +size_t SkStaticTextView::getText(char text[]) const
1.95 +{
1.96 + if (text)
1.97 + memcpy(text, fText.c_str(), fText.size());
1.98 + return fText.size();
1.99 +}
1.100 +
1.101 +void SkStaticTextView::setText(const SkString& text)
1.102 +{
1.103 + this->setText(text.c_str(), text.size());
1.104 +}
1.105 +
1.106 +void SkStaticTextView::setText(const char text[])
1.107 +{
1.108 + if (text == NULL)
1.109 + text = "";
1.110 + this->setText(text, strlen(text));
1.111 +}
1.112 +
1.113 +void SkStaticTextView::setText(const char text[], size_t len)
1.114 +{
1.115 + if (!fText.equals(text, len))
1.116 + {
1.117 + fText.set(text, len);
1.118 + this->computeSize();
1.119 + this->inval(NULL);
1.120 + }
1.121 +}
1.122 +
1.123 +void SkStaticTextView::getPaint(SkPaint* paint) const
1.124 +{
1.125 + if (paint)
1.126 + *paint = fPaint;
1.127 +}
1.128 +
1.129 +void SkStaticTextView::setPaint(const SkPaint& paint)
1.130 +{
1.131 + if (fPaint != paint)
1.132 + {
1.133 + fPaint = paint;
1.134 + this->computeSize();
1.135 + this->inval(NULL);
1.136 + }
1.137 +}
1.138 +
1.139 +void SkStaticTextView::onDraw(SkCanvas* canvas)
1.140 +{
1.141 + this->INHERITED::onDraw(canvas);
1.142 +
1.143 + if (fText.isEmpty())
1.144 + return;
1.145 +
1.146 + SkTextBox box;
1.147 +
1.148 + box.setMode(fMode == kAutoWidth_Mode ? SkTextBox::kOneLine_Mode : SkTextBox::kLineBreak_Mode);
1.149 + box.setSpacingAlign(this->getSpacingAlign());
1.150 + box.setBox(fMargin.fX, fMargin.fY, this->width() - fMargin.fX, this->height() - fMargin.fY);
1.151 + box.draw(canvas, fText.c_str(), fText.size(), fPaint);
1.152 +}
1.153 +
1.154 +void SkStaticTextView::onInflate(const SkDOM& dom, const SkDOM::Node* node)
1.155 +{
1.156 +if (false) { // avoid bit rot, suppress warning
1.157 + this->INHERITED::onInflate(dom, node);
1.158 +
1.159 + int index;
1.160 + if ((index = dom.findList(node, "mode", "fixed,auto-width,auto-height")) >= 0) {
1.161 + this->setMode((Mode)index);
1.162 + } else {
1.163 + assert_no_attr(dom, node, "mode");
1.164 + }
1.165 +
1.166 + if ((index = dom.findList(node, "spacing-align", "start,center,end")) >= 0) {
1.167 + this->setSpacingAlign((SkTextBox::SpacingAlign)index);
1.168 + } else {
1.169 + assert_no_attr(dom, node, "spacing-align");
1.170 + }
1.171 +
1.172 + SkScalar s[2];
1.173 + if (dom.findScalars(node, "margin", s, 2)) {
1.174 + this->setMargin(s[0], s[1]);
1.175 + } else {
1.176 + assert_no_attr(dom, node, "margin");
1.177 + }
1.178 +
1.179 + const char* text = dom.findAttr(node, "text");
1.180 + if (text) {
1.181 + this->setText(text);
1.182 + }
1.183 +
1.184 + if ((node = dom.getFirstChild(node, "paint")) != NULL &&
1.185 + (node = dom.getFirstChild(node, "screenplay")) != NULL)
1.186 + {
1.187 +// FIXME: Including inflate_paint causes Windows build to fail -- it complains
1.188 +// that SKListView::SkListView is undefined.
1.189 +#if 0
1.190 + inflate_paint(dom, node, &fPaint);
1.191 +#endif
1.192 + }
1.193 +}
1.194 +}
