void TextBox::getCaretLocation(Vector2* p) { GP_ASSERT(p); State state = getState(); getFont(state)->getLocationAtIndex(getDisplayedText().c_str(), _textBounds, getFontSize(state), p, _caretLocation, getTextAlignment(state), true, getTextRightToLeft(state)); }
unsigned int TextBox::drawImages(Form* form, const Rectangle& clip) { Control::State state = getState(); if (_caretImage && (state == ACTIVE || hasFocus())) { // Draw the cursor at its current location. const Rectangle& region = _caretImage->getRegion(); if (!region.isEmpty()) { const Theme::UVs& uvs = _caretImage->getUVs(); Vector4 color = _caretImage->getColor(); color.w *= _opacity; float caretWidth = region.width * _fontSize / region.height; Font* font = getFont(state); unsigned int fontSize = getFontSize(state); Vector2 point; font->getLocationAtIndex(getDisplayedText().c_str(), _textBounds, fontSize, &point, _caretLocation, getTextAlignment(state), true, getTextRightToLeft(state)); SpriteBatch* batch = _style->getTheme()->getSpriteBatch(); startBatch(form, batch); batch->draw(point.x - caretWidth * 0.5f, point.y, caretWidth, fontSize, uvs.u1, uvs.v1, uvs.u2, uvs.v2, color, _viewportClipBounds); finishBatch(form, batch); return 1; } } return 0; }
void TextBox::setCaretLocation(int x, int y) { Control::State state = getState(); Vector2 point(x + _absoluteBounds.x, y + _absoluteBounds.y); // Get index into string and cursor location from the latest touch location. Font* font = getFont(state); unsigned int fontSize = getFontSize(state); Font::Justify textAlignment = getTextAlignment(state); bool rightToLeft = getTextRightToLeft(state); const std::string displayedText = getDisplayedText(); int index = font->getIndexAtLocation(displayedText.c_str(), _textBounds, fontSize, point, &point, textAlignment, true, rightToLeft); if (index == -1) { // Attempt to find the nearest valid caret location. Rectangle textBounds; font->measureText(displayedText.c_str(), _textBounds, fontSize, &textBounds, textAlignment, true, true); if (point.x > textBounds.x + textBounds.width && point.y > textBounds.y + textBounds.height) { font->getLocationAtIndex(displayedText.c_str(), _textBounds, fontSize, &point, (unsigned int)_text.length(), textAlignment, true, rightToLeft); return; } if (point.x < textBounds.x) { point.x = textBounds.x; } else if (point.x > textBounds.x + textBounds.width) { point.x = textBounds.x + textBounds.width; } if (point.y < textBounds.y) { point.y = textBounds.y; } else if (point.y > textBounds.y + textBounds.height) { Font* font = getFont(state); GP_ASSERT(font); unsigned int fontSize = getFontSize(state); point.y = textBounds.y + textBounds.height - fontSize; } index = font->getIndexAtLocation(displayedText.c_str(), _textBounds, fontSize, point, &point, textAlignment, true, rightToLeft); } if (index != -1) _caretLocation = index; }
unsigned int TextBox::drawText(Form* form, const Rectangle& clip) { if (_text.size() <= 0) return 0; // Draw the text. if (_font) { Control::State state = getState(); const std::string displayedText = getDisplayedText(); unsigned int fontSize = getFontSize(state); SpriteBatch* batch = _font->getSpriteBatch(fontSize); startBatch(form, batch); _font->drawText(displayedText.c_str(), _textBounds, _textColor, fontSize, getTextAlignment(state), true, getTextRightToLeft(state), _viewportClipBounds); finishBatch(form, batch); return 1; } return 0; }
void UILineEdit::update() { std::string text = getDisplayedText(); int textLength = text.length(); // prevent glitches if(m_rect.isEmpty()) return; // map glyphs positions Size textBoxSize; const std::vector<Point>& glyphsPositions = m_font->calculateGlyphsPositions(text, m_align, &textBoxSize); const Rect *glyphsTextureCoords = m_font->getGlyphsTextureCoords(); const Size *glyphsSize = m_font->getGlyphsSize(); int glyph; // resize just on demand if(textLength > (int)m_glyphsCoords.size()) { m_glyphsCoords.resize(textLength); m_glyphsTexCoords.resize(textLength); } // readjust start view area based on cursor position if(m_cursorPos >= 0 && textLength > 0) { assert(m_cursorPos <= textLength); if(m_cursorPos < m_startRenderPos) // cursor is before the previuos first rendered glyph, so we need to update { m_startInternalPos.x = glyphsPositions[m_cursorPos].x; m_startInternalPos.y = glyphsPositions[m_cursorPos].y - m_font->getYOffset(); m_startRenderPos = m_cursorPos; } else if(m_cursorPos > m_startRenderPos || // cursor is after the previuos first rendered glyph (m_cursorPos == m_startRenderPos && textLength == m_cursorPos)) // cursor is at the previuos rendered element, and is the last text element { Rect virtualRect(m_startInternalPos, m_rect.size() - Size(2*m_textHorizontalMargin, 0) ); // previous rendered virtual rect int pos = m_cursorPos - 1; // element before cursor glyph = (uchar)text[pos]; // glyph of the element before cursor Rect glyphRect(glyphsPositions[pos], glyphsSize[glyph]); // if the cursor is not on the previous rendered virtual rect we need to update it if(!virtualRect.contains(glyphRect.topLeft()) || !virtualRect.contains(glyphRect.bottomRight())) { // calculate where is the first glyph visible Point startGlyphPos; startGlyphPos.y = std::max(glyphRect.bottom() - virtualRect.height(), 0); startGlyphPos.x = std::max(glyphRect.right() - virtualRect.width(), 0); // find that glyph for(pos = 0; pos < textLength; ++pos) { glyph = (uchar)text[pos]; glyphRect = Rect(glyphsPositions[pos], glyphsSize[glyph]); glyphRect.setTop(std::max(glyphRect.top() - m_font->getYOffset() - m_font->getGlyphSpacing().height(), 0)); glyphRect.setLeft(std::max(glyphRect.left() - m_font->getGlyphSpacing().width(), 0)); // first glyph entirely visible found if(glyphRect.topLeft() >= startGlyphPos) { m_startInternalPos.x = glyphsPositions[pos].x; m_startInternalPos.y = glyphsPositions[pos].y - m_font->getYOffset(); m_startRenderPos = pos; break; } } } } } else { m_startInternalPos = Point(0,0); } Rect textScreenCoords = m_rect; textScreenCoords.addLeft(-m_textHorizontalMargin); textScreenCoords.addRight(-m_textHorizontalMargin); m_drawArea = textScreenCoords; if(m_align & Fw::AlignBottom) { m_drawArea.translate(0, textScreenCoords.height() - textBoxSize.height()); } else if(m_align & Fw::AlignVerticalCenter) { m_drawArea.translate(0, (textScreenCoords.height() - textBoxSize.height()) / 2); } else { // AlignTop } if(m_align & Fw::AlignRight) { m_drawArea.translate(textScreenCoords.width() - textBoxSize.width(), 0); } else if(m_align & Fw::AlignHorizontalCenter) { m_drawArea.translate((textScreenCoords.width() - textBoxSize.width()) / 2, 0); } else { // AlignLeft } for(int i = 0; i < textLength; ++i) { glyph = (uchar)text[i]; m_glyphsCoords[i].clear(); // skip invalid glyphs if(glyph < 32) continue; // calculate initial glyph rect and texture coords Rect glyphScreenCoords(glyphsPositions[i], glyphsSize[glyph]); Rect glyphTextureCoords = glyphsTextureCoords[glyph]; // first translate to align position if(m_align & Fw::AlignBottom) { glyphScreenCoords.translate(0, textScreenCoords.height() - textBoxSize.height()); } else if(m_align & Fw::AlignVerticalCenter) { glyphScreenCoords.translate(0, (textScreenCoords.height() - textBoxSize.height()) / 2); } else { // AlignTop // nothing to do } if(m_align & Fw::AlignRight) { glyphScreenCoords.translate(textScreenCoords.width() - textBoxSize.width(), 0); } else if(m_align & Fw::AlignHorizontalCenter) { glyphScreenCoords.translate((textScreenCoords.width() - textBoxSize.width()) / 2, 0); } else { // AlignLeft // nothing to do } // only render glyphs that are after startRenderPosition if(glyphScreenCoords.bottom() < m_startInternalPos.y || glyphScreenCoords.right() < m_startInternalPos.x) continue; // bound glyph topLeft to startRenderPosition if(glyphScreenCoords.top() < m_startInternalPos.y) { glyphTextureCoords.setTop(glyphTextureCoords.top() + (m_startInternalPos.y - glyphScreenCoords.top())); glyphScreenCoords.setTop(m_startInternalPos.y); } if(glyphScreenCoords.left() < m_startInternalPos.x) { glyphTextureCoords.setLeft(glyphTextureCoords.left() + (m_startInternalPos.x - glyphScreenCoords.left())); glyphScreenCoords.setLeft(m_startInternalPos.x); } // subtract startInternalPos glyphScreenCoords.translate(-m_startInternalPos); // translate rect to screen coords glyphScreenCoords.translate(textScreenCoords.topLeft()); // only render if glyph rect is visible on screenCoords if(!textScreenCoords.intersects(glyphScreenCoords)) continue; // bound glyph bottomRight to screenCoords bottomRight if(glyphScreenCoords.bottom() > textScreenCoords.bottom()) { glyphTextureCoords.setBottom(glyphTextureCoords.bottom() + (textScreenCoords.bottom() - glyphScreenCoords.bottom())); glyphScreenCoords.setBottom(textScreenCoords.bottom()); } if(glyphScreenCoords.right() > textScreenCoords.right()) { glyphTextureCoords.setRight(glyphTextureCoords.right() + (textScreenCoords.right() - glyphScreenCoords.right())); glyphScreenCoords.setRight(textScreenCoords.right()); } // render glyph m_glyphsCoords[i] = glyphScreenCoords; m_glyphsTexCoords[i] = glyphTextureCoords; } }
void UITextEdit::update(bool focusCursor) { if(!m_updatesEnabled) return; std::string text = getDisplayedText(); m_drawText = text; int textLength = text.length(); // prevent glitches if(m_rect.isEmpty()) return; // map glyphs positions Size textBoxSize; const std::vector<Point>& glyphsPositions = m_font->calculateGlyphsPositions(text, m_textAlign, &textBoxSize); const Rect *glyphsTextureCoords = m_font->getGlyphsTextureCoords(); const Size *glyphsSize = m_font->getGlyphsSize(); int glyph; // update rect size if(!m_rect.isValid() || m_textHorizontalAutoResize || m_textVerticalAutoResize) { textBoxSize += Size(m_padding.left + m_padding.right, m_padding.top + m_padding.bottom) + m_textOffset.toSize(); Size size = getSize(); if(size.width() <= 0 || (m_textHorizontalAutoResize && !m_textWrap)) size.setWidth(textBoxSize.width()); if(size.height() <= 0 || m_textVerticalAutoResize) size.setHeight(textBoxSize.height()); setSize(size); } // resize just on demand if(textLength > (int)m_glyphsCoords.size()) { m_glyphsCoords.resize(textLength); m_glyphsTexCoords.resize(textLength); } Point oldTextAreaOffset = m_textVirtualOffset; if(textBoxSize.width() <= getPaddingRect().width()) m_textVirtualOffset.x = 0; if(textBoxSize.height() <= getPaddingRect().height()) m_textVirtualOffset.y = 0; // readjust start view area based on cursor position m_cursorInRange = false; if(focusCursor && m_autoScroll) { if(m_cursorPos > 0 && textLength > 0) { assert(m_cursorPos <= textLength); Rect virtualRect(m_textVirtualOffset, m_rect.size() - Size(m_padding.left+m_padding.right, 0)); // previous rendered virtual rect int pos = m_cursorPos - 1; // element before cursor glyph = (uchar)text[pos]; // glyph of the element before cursor Rect glyphRect(glyphsPositions[pos], glyphsSize[glyph]); // if the cursor is not on the previous rendered virtual rect we need to update it if(!virtualRect.contains(glyphRect.topLeft()) || !virtualRect.contains(glyphRect.bottomRight())) { // calculate where is the first glyph visible Point startGlyphPos; startGlyphPos.y = std::max(glyphRect.bottom() - virtualRect.height(), 0); startGlyphPos.x = std::max(glyphRect.right() - virtualRect.width(), 0); // find that glyph for(pos = 0; pos < textLength; ++pos) { glyph = (uchar)text[pos]; glyphRect = Rect(glyphsPositions[pos], glyphsSize[glyph]); glyphRect.setTop(std::max(glyphRect.top() - m_font->getYOffset() - m_font->getGlyphSpacing().height(), 0)); glyphRect.setLeft(std::max(glyphRect.left() - m_font->getGlyphSpacing().width(), 0)); // first glyph entirely visible found if(glyphRect.topLeft() >= startGlyphPos) { m_textVirtualOffset.x = glyphsPositions[pos].x; m_textVirtualOffset.y = glyphsPositions[pos].y - m_font->getYOffset(); break; } } } } else { m_textVirtualOffset = Point(0,0); } m_cursorInRange = true; } else { if(m_cursorPos > 0 && textLength > 0) { Rect virtualRect(m_textVirtualOffset, m_rect.size() - Size(2*m_padding.left+m_padding.right, 0) ); // previous rendered virtual rect int pos = m_cursorPos - 1; // element before cursor glyph = (uchar)text[pos]; // glyph of the element before cursor Rect glyphRect(glyphsPositions[pos], glyphsSize[glyph]); if(virtualRect.contains(glyphRect.topLeft()) && virtualRect.contains(glyphRect.bottomRight())) m_cursorInRange = true; } else { m_cursorInRange = true; } } bool fireAreaUpdate = false; if(oldTextAreaOffset != m_textVirtualOffset) fireAreaUpdate = true; Rect textScreenCoords = m_rect; textScreenCoords.expandLeft(-m_padding.left); textScreenCoords.expandRight(-m_padding.right); textScreenCoords.expandBottom(-m_padding.bottom); textScreenCoords.expandTop(-m_padding.top); m_drawArea = textScreenCoords; if(textScreenCoords.size() != m_textVirtualSize) { m_textVirtualSize = textScreenCoords.size(); fireAreaUpdate = true; } Size totalSize = textBoxSize; if(totalSize.width() < m_textVirtualSize.width()) totalSize.setWidth(m_textVirtualSize.height()); if(totalSize.height() < m_textVirtualSize.height()) totalSize.setHeight(m_textVirtualSize.height()); if(m_textTotalSize != totalSize) { m_textTotalSize = totalSize; fireAreaUpdate = true; } if(m_textAlign & Fw::AlignBottom) { m_drawArea.translate(0, textScreenCoords.height() - textBoxSize.height()); } else if(m_textAlign & Fw::AlignVerticalCenter) { m_drawArea.translate(0, (textScreenCoords.height() - textBoxSize.height()) / 2); } else { // AlignTop } if(m_textAlign & Fw::AlignRight) { m_drawArea.translate(textScreenCoords.width() - textBoxSize.width(), 0); } else if(m_textAlign & Fw::AlignHorizontalCenter) { m_drawArea.translate((textScreenCoords.width() - textBoxSize.width()) / 2, 0); } else { // AlignLeft } for(int i = 0; i < textLength; ++i) { glyph = (uchar)text[i]; m_glyphsCoords[i].clear(); // skip invalid glyphs if(glyph < 32 && glyph != (uchar)'\n') continue; // calculate initial glyph rect and texture coords Rect glyphScreenCoords(glyphsPositions[i], glyphsSize[glyph]); Rect glyphTextureCoords = glyphsTextureCoords[glyph]; // first translate to align position if(m_textAlign & Fw::AlignBottom) { glyphScreenCoords.translate(0, textScreenCoords.height() - textBoxSize.height()); } else if(m_textAlign & Fw::AlignVerticalCenter) { glyphScreenCoords.translate(0, (textScreenCoords.height() - textBoxSize.height()) / 2); } else { // AlignTop // nothing to do } if(m_textAlign & Fw::AlignRight) { glyphScreenCoords.translate(textScreenCoords.width() - textBoxSize.width(), 0); } else if(m_textAlign & Fw::AlignHorizontalCenter) { glyphScreenCoords.translate((textScreenCoords.width() - textBoxSize.width()) / 2, 0); } else { // AlignLeft // nothing to do } // only render glyphs that are after startRenderPosition if(glyphScreenCoords.bottom() < m_textVirtualOffset.y || glyphScreenCoords.right() < m_textVirtualOffset.x) continue; // bound glyph topLeft to startRenderPosition if(glyphScreenCoords.top() < m_textVirtualOffset.y) { glyphTextureCoords.setTop(glyphTextureCoords.top() + (m_textVirtualOffset.y - glyphScreenCoords.top())); glyphScreenCoords.setTop(m_textVirtualOffset.y); } if(glyphScreenCoords.left() < m_textVirtualOffset.x) { glyphTextureCoords.setLeft(glyphTextureCoords.left() + (m_textVirtualOffset.x - glyphScreenCoords.left())); glyphScreenCoords.setLeft(m_textVirtualOffset.x); } // subtract startInternalPos glyphScreenCoords.translate(-m_textVirtualOffset); // translate rect to screen coords glyphScreenCoords.translate(textScreenCoords.topLeft()); // only render if glyph rect is visible on screenCoords if(!textScreenCoords.intersects(glyphScreenCoords)) continue; // bound glyph bottomRight to screenCoords bottomRight if(glyphScreenCoords.bottom() > textScreenCoords.bottom()) { glyphTextureCoords.setBottom(glyphTextureCoords.bottom() + (textScreenCoords.bottom() - glyphScreenCoords.bottom())); glyphScreenCoords.setBottom(textScreenCoords.bottom()); } if(glyphScreenCoords.right() > textScreenCoords.right()) { glyphTextureCoords.setRight(glyphTextureCoords.right() + (textScreenCoords.right() - glyphScreenCoords.right())); glyphScreenCoords.setRight(textScreenCoords.right()); } // render glyph m_glyphsCoords[i] = glyphScreenCoords; m_glyphsTexCoords[i] = glyphTextureCoords; } if(fireAreaUpdate) onTextAreaUpdate(m_textVirtualOffset, m_textVirtualSize, m_textTotalSize); g_app.repaint(); }
bool TextBox::keyEvent(Keyboard::KeyEvent evt, int key) { switch (evt) { case Keyboard::KEY_PRESS: { switch (key) { case Keyboard::KEY_SHIFT: { _shiftPressed = true; break; } case Keyboard::KEY_CTRL: { _ctrlPressed = true; break; } case Keyboard::KEY_HOME: { _caretLocation = 0; break; } case Keyboard::KEY_END: { _caretLocation = _text.length(); break; } case Keyboard::KEY_DELETE: { if (_caretLocation < _text.length()) { int newCaretLocation; if (_ctrlPressed) { newCaretLocation = findNextWord(getDisplayedText(), _caretLocation, false); } else { newCaretLocation = _caretLocation + 1; } _text.erase(_caretLocation, newCaretLocation - _caretLocation); notifyListeners(Control::Listener::TEXT_CHANGED); } break; } case Keyboard::KEY_TAB: { // Allow tab to move the focus forward. return false; } case Keyboard::KEY_LEFT_ARROW: { if (_caretLocation > 0) { if (_ctrlPressed) { _caretLocation = findNextWord(getDisplayedText(), _caretLocation, true); } else { --_caretLocation; } } break; } case Keyboard::KEY_RIGHT_ARROW: { if (_caretLocation < _text.length()) { if (_ctrlPressed) { _caretLocation = findNextWord(getDisplayedText(), _caretLocation, false); } else { ++_caretLocation; } } break; } case Keyboard::KEY_UP_ARROW: { // TODO: Support multiline break; } case Keyboard::KEY_DOWN_ARROW: { // TODO: Support multiline break; } case Keyboard::KEY_BACKSPACE: { if (_caretLocation > 0) { int newCaretLocation; if (_ctrlPressed) { newCaretLocation = findNextWord(getDisplayedText(), _caretLocation, true); } else { newCaretLocation = _caretLocation - 1; } _text.erase(newCaretLocation, _caretLocation - newCaretLocation); _caretLocation = newCaretLocation; notifyListeners(Control::Listener::TEXT_CHANGED); } break; } } break; } case Keyboard::KEY_CHAR: { switch (key) { case Keyboard::KEY_RETURN: // TODO: Support multi-line break; case Keyboard::KEY_ESCAPE: break; case Keyboard::KEY_BACKSPACE: break; case Keyboard::KEY_TAB: // Allow tab to move the focus forward. return false; default: { // Insert character into string, only if our font supports this character if (_shiftPressed && islower(key)) { key = toupper(key); } // Insert character into string, only if our font supports this character if (_font && _font->isCharacterSupported(key)) { if (_caretLocation <= _text.length()) { _text.insert(_caretLocation, 1, (char)key); ++_caretLocation; } notifyListeners(Control::Listener::TEXT_CHANGED); } break; } break; } break; } case Keyboard::KEY_RELEASE: switch (key) { case Keyboard::KEY_SHIFT: { _shiftPressed = false; break; } case Keyboard::KEY_CTRL: { _ctrlPressed = false; break; } } } _lastKeypress = key; return Label::keyEvent(evt, key); }