513 lines
18 KiB
C++
513 lines
18 KiB
C++
/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "uitextedit.h"
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#include <framework/graphics/font.h>
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#include <framework/graphics/graphics.h>
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#include <framework/platform/platformwindow.h>
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#include <framework/core/clock.h>
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#include <framework/otml/otmlnode.h>
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UITextEdit::UITextEdit()
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{
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m_cursorPos = 0;
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m_textAlign = Fw::AlignTopLeft;
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m_startRenderPos = 0;
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m_textHorizontalMargin = 0;
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m_textHidden = false;
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m_alwaysActive = false;
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m_shiftNavigation = false;
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m_multiline = false;
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blinkCursor();
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}
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void UITextEdit::drawSelf()
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{
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drawBackground(m_rect);
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drawBorder(m_rect);
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drawImage(m_rect);
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drawIcon(m_rect);
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//TODO: text rendering could be much optimized by using vertex buffer or caching the render into a texture
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int textLength = m_text.length();
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const TexturePtr& texture = m_font->getTexture();
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g_painter.setColor(m_color);
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for(int i=0;i<textLength;++i)
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g_painter.drawTexturedRect(m_glyphsCoords[i], texture, m_glyphsTexCoords[i]);
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// render cursor
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if(isExplicitlyEnabled() && (isActive() || m_alwaysActive) && m_cursorPos >= 0) {
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assert(m_cursorPos <= textLength);
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// draw every 333ms
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const int delay = 333;
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if(g_clock.ticksElapsed(m_cursorTicks) <= delay) {
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Rect cursorRect;
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// when cursor is at 0 or is the first visible element
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if(m_cursorPos == 0 || m_cursorPos == m_startRenderPos)
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cursorRect = Rect(m_drawArea.left()-1, m_drawArea.top(), 1, m_font->getGlyphHeight());
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else
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cursorRect = Rect(m_glyphsCoords[m_cursorPos-1].right(), m_glyphsCoords[m_cursorPos-1].top(), 1, m_font->getGlyphHeight());
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g_painter.drawFilledRect(cursorRect);
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} else if(g_clock.ticksElapsed(m_cursorTicks) >= 2*delay) {
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m_cursorTicks = g_clock.ticks();
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}
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}
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}
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void UITextEdit::update()
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{
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std::string text = getDisplayedText();
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int textLength = text.length();
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// prevent glitches
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if(m_rect.isEmpty())
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return;
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// map glyphs positions
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Size textBoxSize;
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const std::vector<Point>& glyphsPositions = m_font->calculateGlyphsPositions(text, m_textAlign, &textBoxSize);
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const Rect *glyphsTextureCoords = m_font->getGlyphsTextureCoords();
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const Size *glyphsSize = m_font->getGlyphsSize();
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int glyph;
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// resize just on demand
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if(textLength > (int)m_glyphsCoords.size()) {
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m_glyphsCoords.resize(textLength);
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m_glyphsTexCoords.resize(textLength);
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}
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// readjust start view area based on cursor position
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if(m_cursorPos >= 0 && textLength > 0) {
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assert(m_cursorPos <= textLength);
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if(m_cursorPos < m_startRenderPos) // cursor is before the previous first rendered glyph, so we need to update
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{
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m_startInternalPos.x = glyphsPositions[m_cursorPos].x;
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m_startInternalPos.y = glyphsPositions[m_cursorPos].y - m_font->getYOffset();
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m_startRenderPos = m_cursorPos;
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} else if(m_cursorPos > m_startRenderPos || // cursor is after the previous first rendered glyph
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(m_cursorPos == m_startRenderPos && textLength == m_cursorPos)) // cursor is at the previous rendered element, and is the last text element
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{
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Rect virtualRect(m_startInternalPos, m_rect.size() - Size(2*m_textHorizontalMargin, 0) ); // previous rendered virtual rect
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int pos = m_cursorPos - 1; // element before cursor
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glyph = (uchar)text[pos]; // glyph of the element before cursor
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Rect glyphRect(glyphsPositions[pos], glyphsSize[glyph]);
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// if the cursor is not on the previous rendered virtual rect we need to update it
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if(!virtualRect.contains(glyphRect.topLeft()) || !virtualRect.contains(glyphRect.bottomRight())) {
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// calculate where is the first glyph visible
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Point startGlyphPos;
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startGlyphPos.y = std::max(glyphRect.bottom() - virtualRect.height(), 0);
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startGlyphPos.x = std::max(glyphRect.right() - virtualRect.width(), 0);
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// find that glyph
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for(pos = 0; pos < textLength; ++pos) {
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glyph = (uchar)text[pos];
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glyphRect = Rect(glyphsPositions[pos], glyphsSize[glyph]);
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glyphRect.setTop(std::max(glyphRect.top() - m_font->getYOffset() - m_font->getGlyphSpacing().height(), 0));
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glyphRect.setLeft(std::max(glyphRect.left() - m_font->getGlyphSpacing().width(), 0));
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// first glyph entirely visible found
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if(glyphRect.topLeft() >= startGlyphPos) {
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m_startInternalPos.x = glyphsPositions[pos].x;
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m_startInternalPos.y = glyphsPositions[pos].y - m_font->getYOffset();
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m_startRenderPos = pos;
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break;
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}
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}
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}
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}
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} else {
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m_startInternalPos = Point(0,0);
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}
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Rect textScreenCoords = m_rect;
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textScreenCoords.expandLeft(-m_textHorizontalMargin);
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textScreenCoords.expandRight(-m_textHorizontalMargin);
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textScreenCoords.expandLeft(-m_textOffset.x);
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textScreenCoords.translate(0, m_textOffset.y);
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m_drawArea = textScreenCoords;
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if(m_textAlign & Fw::AlignBottom) {
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m_drawArea.translate(0, textScreenCoords.height() - textBoxSize.height());
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} else if(m_textAlign & Fw::AlignVerticalCenter) {
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m_drawArea.translate(0, (textScreenCoords.height() - textBoxSize.height()) / 2);
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} else { // AlignTop
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}
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if(m_textAlign & Fw::AlignRight) {
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m_drawArea.translate(textScreenCoords.width() - textBoxSize.width(), 0);
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} else if(m_textAlign & Fw::AlignHorizontalCenter) {
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m_drawArea.translate((textScreenCoords.width() - textBoxSize.width()) / 2, 0);
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} else { // AlignLeft
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}
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for(int i = 0; i < textLength; ++i) {
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glyph = (uchar)text[i];
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m_glyphsCoords[i].clear();
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// skip invalid glyphs
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if(glyph < 32 && glyph != (uchar)'\n')
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continue;
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// calculate initial glyph rect and texture coords
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Rect glyphScreenCoords(glyphsPositions[i], glyphsSize[glyph]);
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Rect glyphTextureCoords = glyphsTextureCoords[glyph];
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// first translate to align position
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if(m_textAlign & Fw::AlignBottom) {
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glyphScreenCoords.translate(0, textScreenCoords.height() - textBoxSize.height());
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} else if(m_textAlign & Fw::AlignVerticalCenter) {
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glyphScreenCoords.translate(0, (textScreenCoords.height() - textBoxSize.height()) / 2);
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} else { // AlignTop
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// nothing to do
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}
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if(m_textAlign & Fw::AlignRight) {
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glyphScreenCoords.translate(textScreenCoords.width() - textBoxSize.width(), 0);
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} else if(m_textAlign & Fw::AlignHorizontalCenter) {
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glyphScreenCoords.translate((textScreenCoords.width() - textBoxSize.width()) / 2, 0);
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} else { // AlignLeft
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// nothing to do
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}
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// only render glyphs that are after startRenderPosition
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if(glyphScreenCoords.bottom() < m_startInternalPos.y || glyphScreenCoords.right() < m_startInternalPos.x)
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continue;
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// bound glyph topLeft to startRenderPosition
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if(glyphScreenCoords.top() < m_startInternalPos.y) {
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glyphTextureCoords.setTop(glyphTextureCoords.top() + (m_startInternalPos.y - glyphScreenCoords.top()));
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glyphScreenCoords.setTop(m_startInternalPos.y);
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}
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if(glyphScreenCoords.left() < m_startInternalPos.x) {
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glyphTextureCoords.setLeft(glyphTextureCoords.left() + (m_startInternalPos.x - glyphScreenCoords.left()));
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glyphScreenCoords.setLeft(m_startInternalPos.x);
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}
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// subtract startInternalPos
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glyphScreenCoords.translate(-m_startInternalPos);
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// translate rect to screen coords
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glyphScreenCoords.translate(textScreenCoords.topLeft());
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// only render if glyph rect is visible on screenCoords
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if(!textScreenCoords.intersects(glyphScreenCoords))
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continue;
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// bound glyph bottomRight to screenCoords bottomRight
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if(glyphScreenCoords.bottom() > textScreenCoords.bottom()) {
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glyphTextureCoords.setBottom(glyphTextureCoords.bottom() + (textScreenCoords.bottom() - glyphScreenCoords.bottom()));
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glyphScreenCoords.setBottom(textScreenCoords.bottom());
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}
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if(glyphScreenCoords.right() > textScreenCoords.right()) {
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glyphTextureCoords.setRight(glyphTextureCoords.right() + (textScreenCoords.right() - glyphScreenCoords.right()));
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glyphScreenCoords.setRight(textScreenCoords.right());
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}
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// render glyph
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m_glyphsCoords[i] = glyphScreenCoords;
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m_glyphsTexCoords[i] = glyphTextureCoords;
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}
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}
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void UITextEdit::setTextHorizontalMargin(int margin)
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{
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m_textHorizontalMargin = margin;
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update();
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}
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void UITextEdit::setCursorPos(int pos)
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{
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if(pos != m_cursorPos) {
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if(pos < 0)
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m_cursorPos = 0;
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else if((uint)pos >= m_text.length())
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m_cursorPos = m_text.length();
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else
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m_cursorPos = pos;
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update();
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}
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}
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void UITextEdit::setCursorEnabled(bool enable)
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{
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if(enable) {
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m_cursorPos = 0;
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blinkCursor();
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} else
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m_cursorPos = -1;
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update();
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}
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void UITextEdit::setTextHidden(bool hidden)
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{
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m_textHidden = true;
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update();
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}
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void UITextEdit::setAlwaysActive(bool enable)
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{
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m_alwaysActive = enable;
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}
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void UITextEdit::appendText(std::string text)
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{
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if(m_cursorPos >= 0) {
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// replace characters that are now allowed
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if(!m_multiline)
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boost::replace_all(text, "\n", "");
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boost::replace_all(text, "\r", " ");
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if(text.length() > 0) {
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// only ignore text append if it contains invalid characters
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if(m_validCharacters.size() > 0) {
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for(uint i = 0; i < text.size(); ++i) {
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if(m_validCharacters.find(text[i]) == std::string::npos)
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return;
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}
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}
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std::string oldText = m_text;
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m_text.insert(m_cursorPos, text);
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m_cursorPos += text.length();
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blinkCursor();
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update();
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UIWidget::onTextChange(m_text, oldText);
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}
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}
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}
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void UITextEdit::appendCharacter(char c)
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{
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if((c == '\n' && !m_multiline) || c == '\r')
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return;
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if(m_cursorPos >= 0) {
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if(m_validCharacters.size() > 0 && m_validCharacters.find(c) == std::string::npos)
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return;
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std::string tmp;
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tmp = c;
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std::string oldText = m_text;
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m_text.insert(m_cursorPos, tmp);
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m_cursorPos++;
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blinkCursor();
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update();
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UIWidget::onTextChange(m_text, oldText);
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}
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}
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void UITextEdit::removeCharacter(bool right)
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{
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std::string oldText = m_text;
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if(m_cursorPos >= 0 && m_text.length() > 0) {
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if((uint)m_cursorPos >= m_text.length()) {
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m_text.erase(m_text.begin() + (--m_cursorPos));
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} else {
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if(right)
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m_text.erase(m_text.begin() + m_cursorPos);
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else if(m_cursorPos > 0)
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m_text.erase(m_text.begin() + --m_cursorPos);
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}
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blinkCursor();
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update();
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UIWidget::onTextChange(m_text, oldText);
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}
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}
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void UITextEdit::moveCursor(bool right)
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{
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if(right) {
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if((uint)m_cursorPos+1 <= m_text.length()) {
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m_cursorPos++;
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blinkCursor();
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}
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} else {
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if(m_cursorPos-1 >= 0) {
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m_cursorPos--;
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blinkCursor();
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}
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}
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update();
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}
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int UITextEdit::getTextPos(Point pos)
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{
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int textLength = m_text.length();
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// find any glyph that is actually on the
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int candidatePos = -1;
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for(int i=0;i<textLength;++i) {
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Rect clickGlyphRect = m_glyphsCoords[i];
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clickGlyphRect.expandTop(m_font->getYOffset() + m_font->getGlyphSpacing().height());
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clickGlyphRect.expandLeft(m_font->getGlyphSpacing().width()+1);
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if(clickGlyphRect.contains(pos))
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return i;
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else if(pos.y >= clickGlyphRect.top() && pos.y <= clickGlyphRect.bottom()) {
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if(pos.x <= clickGlyphRect.left())
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candidatePos = i;
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else if(pos.x >= clickGlyphRect.right())
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candidatePos = i+1;
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}
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}
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return candidatePos;
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}
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std::string UITextEdit::getDisplayedText()
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{
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if(m_textHidden)
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return std::string(m_text.length(), '*');
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else
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return m_text;
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}
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void UITextEdit::onTextChange(const std::string& text, const std::string& oldText)
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{
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m_cursorPos = text.length();
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blinkCursor();
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update();
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UIWidget::onTextChange(text, oldText);
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}
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void UITextEdit::onFontChange(const std::string& font)
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{
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update();
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UIWidget::onFontChange(font);
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}
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void UITextEdit::onStyleApply(const std::string& styleName, const OTMLNodePtr& styleNode)
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{
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UIWidget::onStyleApply(styleName, styleNode);
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for(const OTMLNodePtr& node : styleNode->children()) {
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if(node->tag() == "text") {
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setText(node->value());
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setCursorPos(m_text.length());
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} else if(node->tag() == "text-hidden")
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setTextHidden(node->value<bool>());
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else if(node->tag() == "text-margin")
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setTextHorizontalMargin(node->value<int>());
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else if(node->tag() == "always-active")
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setAlwaysActive(node->value<bool>());
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else if(node->tag() == "shift-navigation")
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setShiftNavigation(node->value<bool>());
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else if(node->tag() == "multiline")
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setMultiline(node->value<bool>());
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}
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}
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void UITextEdit::onGeometryChange(const Rect& oldRect, const Rect& newRect)
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{
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update();
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UIWidget::onGeometryChange(oldRect, newRect);
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}
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void UITextEdit::onFocusChange(bool focused, Fw::FocusReason reason)
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{
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if(focused && !m_alwaysActive) {
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if(reason == Fw::KeyboardFocusReason)
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setCursorPos(m_text.length());
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else
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blinkCursor();
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}
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UIWidget::onFocusChange(focused, reason);
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}
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bool UITextEdit::onKeyPress(uchar keyCode, int keyboardModifiers, int autoRepeatTicks)
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{
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if(UIWidget::onKeyPress(keyCode, keyboardModifiers, autoRepeatTicks))
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return true;
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if(keyboardModifiers == Fw::KeyboardNoModifier) {
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if(keyCode == Fw::KeyDelete) { // erase right character
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removeCharacter(true);
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return true;
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} else if(keyCode == Fw::KeyBackspace) { // erase left character {
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removeCharacter(false);
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return true;
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} else if(keyCode == Fw::KeyRight && !m_shiftNavigation) { // move cursor right
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moveCursor(true);
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return true;
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} else if(keyCode == Fw::KeyLeft && !m_shiftNavigation) { // move cursor left
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moveCursor(false);
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return true;
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} else if(keyCode == Fw::KeyHome) { // move cursor to first character
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setCursorPos(0);
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return true;
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} else if(keyCode == Fw::KeyEnd) { // move cursor to last character
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setCursorPos(m_text.length());
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return true;
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} else if(keyCode == Fw::KeyTab && !m_shiftNavigation) {
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if(UIWidgetPtr parent = getParent())
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parent->focusNextChild(Fw::KeyboardFocusReason);
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return true;
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} else if(keyCode == Fw::KeyEnter && m_multiline) {
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appendCharacter('\n');
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return true;
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} else if(keyCode == Fw::KeyUp && !m_shiftNavigation && m_multiline) {
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} else if(keyCode == Fw::KeyDown && !m_shiftNavigation && m_multiline) {
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}
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} else if(keyboardModifiers == Fw::KeyboardCtrlModifier) {
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if(keyCode == Fw::KeyV) {
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appendText(g_window.getClipboardText());
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return true;
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}
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} else if(keyboardModifiers == Fw::KeyboardShiftModifier) {
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if(keyCode == Fw::KeyRight && m_shiftNavigation) { // move cursor right
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moveCursor(true);
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return true;
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} else if(keyCode == Fw::KeyLeft && m_shiftNavigation) { // move cursor left
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moveCursor(false);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool UITextEdit::onKeyText(const std::string& keyText)
|
|
{
|
|
appendText(keyText);
|
|
return true;
|
|
}
|
|
|
|
bool UITextEdit::onMousePress(const Point& mousePos, Fw::MouseButton button)
|
|
{
|
|
if(button == Fw::MouseLeftButton) {
|
|
int pos = getTextPos(mousePos);
|
|
if(pos >= 0)
|
|
setCursorPos(pos);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void UITextEdit::blinkCursor()
|
|
{
|
|
m_cursorTicks = g_clock.ticks();
|
|
}
|