275 lines
7.9 KiB
C++
275 lines
7.9 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2010, Edouard DUPIN, all right reserved
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*
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* @license GPL v3 (see license file)
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*/
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#include <appl/Debug.h>
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#include <appl/global.h>
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#include <TextViewer.h>
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#include <BufferManager.h>
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#include <ColorizeManager.h>
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#include <ewol/clipBoard.h>
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#include <SearchData.h>
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#include <ewol/widget/WidgetManager.h>
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#include <ewol/renderer/EObject.h>
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#undef __class__
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#define __class__ "TextViewer"
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appl::TextViewer::TextViewer(const etk::UString& _fontName, int32_t _fontSize) :
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m_buffer(NULL),
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m_displayText(_fontName, _fontSize),
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m_insertMode(false) {
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setCanHaveFocus(true);
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registerMultiCast(ednMsgBufferId);
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registerMultiCast(ednMsgGuiCopy);
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registerMultiCast(ednMsgGuiPaste);
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registerMultiCast(ednMsgGuiCut);
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registerMultiCast(ednMsgGuiRedo);
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registerMultiCast(ednMsgGuiUndo);
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registerMultiCast(ednMsgGuiRm);
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registerMultiCast(ednMsgGuiSelect);
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registerMultiCast(ednMsgGuiChangeCharset);
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registerMultiCast(ednMsgGuiFind);
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registerMultiCast(ednMsgGuiReplace);
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registerMultiCast(ednMsgGuiGotoLine);
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setLimitScrolling(0.2);
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shortCutAdd("ctrl+w", ednMsgGuiRm, "Line");
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shortCutAdd("ctrl+shift+w", ednMsgGuiRm, "Paragraph");
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shortCutAdd("ctrl+x", ednMsgGuiCut, "STD");
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shortCutAdd("ctrl+c", ednMsgGuiCopy, "STD");
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shortCutAdd("ctrl+v", ednMsgGuiPaste, "STD");
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shortCutAdd("ctrl+a", ednMsgGuiSelect, "ALL");
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shortCutAdd("ctrl+shift+a", ednMsgGuiSelect, "NONE");
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// by default we load an example object:
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m_buffer = new appl::Buffer();
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if (m_buffer == NULL) {
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APPL_ERROR("can not create buffer ... ");
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return;
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}
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m_buffer->loadFile("./example.txt");
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}
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appl::TextViewer::~TextViewer(void) {
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}
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bool appl::TextViewer::calculateMinSize(void) {
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m_minSize.setValue(50,50);
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return true;
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}
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void appl::TextViewer::calculateMaxSize(void) {
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m_maxSize.setX(256);
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m_maxSize.setY(256);
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}
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void appl::TextViewer::onDraw(void) {
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m_displayDrawing.draw();
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m_displayText.draw();
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WidgetScrooled::onDraw();
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}
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void appl::TextViewer::onRegenerateDisplay(void) {
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if (false == needRedraw()) {
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return;
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}
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// For the scrooling windows
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calculateMaxSize();
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m_displayDrawing.clear();
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m_displayText.clear();
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// reset the background :
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m_displayDrawing.setPos(vec3(0, 0, 0));
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m_displayDrawing.setColor(etk::Color<>(220, 220, 220, 256));
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m_displayDrawing.rectangleWidth(m_size);
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if (m_buffer == NULL) {
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m_displayText.setTextAlignement(10, m_size.x()-20, ewol::Text::alignLeft);
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m_displayText.setRelPos(vec3(10, 0, 0));
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etk::UString tmpString("<br/>\n"
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"<font color=\"red\">\n"
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" <b>\n"
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" edn - Editeur De N'ours\n"
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" </b>\n"
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"</font>\n"
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"<br/>\n"
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"<br/>\n"
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"<font color=\"indigo\">\n"
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" <i>\n"
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" No Buffer Availlable to display\n"
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" </i>\n"
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"</font>\n");
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m_displayText.setPos(vec3(0.0f, m_size.y(), 0.0f) );
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m_displayText.forceLineReturn();
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m_displayText.printDecorated(tmpString);
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// call the herited class...
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WidgetScrooled::onRegenerateDisplay();
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return;
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}
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// normal displa of the buffer :
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vec3 tmpCursorPosition(0, 0, -1);
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// real display ...
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etk::Buffer& buf = m_buffer->getData();
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m_displayText.setColor(etk::Color<>(0, 0, 0, 256));
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float countNbLine = 1;
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esize_t countColomn = 0;
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vec3 tmpLetterSize = m_displayText.calculateSize((etk::UChar)'A');
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vec3 positionCurentDisplay(0.0f, m_size.y()-tmpLetterSize.y(), 0.0f);
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m_displayText.setPos(positionCurentDisplay);
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// the siplay string :
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etk::UString stringToDisplay;
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esize_t bufferElementSize = 0;
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etk::UChar currentValue;
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bool isSelect = false;
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int32_t selectPosStart = etk_min(m_buffer->m_cursorPos, m_buffer->m_cursorSelectPos);
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int32_t selectPosStop = etk_max(m_buffer->m_cursorPos, m_buffer->m_cursorSelectPos);
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if (m_buffer->m_cursorSelectPos<0) {
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selectPosStart = -1;
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selectPosStop = -1;
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}
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for (int32_t iii=0; iii<buf.size(); iii+=bufferElementSize) {
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if (iii == m_buffer->m_cursorPos) {
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// need to display the cursor :
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tmpCursorPosition = positionCurentDisplay;
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}
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if (iii >= selectPosStart && iii < selectPosStop) {
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isSelect = true;
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} else {
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isSelect = false;
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}
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bufferElementSize = m_buffer->get(iii, currentValue);
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//APPL_DEBUG(" element size : " << iii << " : " << bufferElementSize);
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if (currentValue == etk::UChar::Return) {
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countNbLine += 1;
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countColomn = 0;
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if (bufferElementSize == 0) {
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bufferElementSize = 1;
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}
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positionCurentDisplay.setX(0);
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positionCurentDisplay.setY(positionCurentDisplay.y()-tmpLetterSize.y());
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m_displayText.setPos(positionCurentDisplay);
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continue;
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}
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m_buffer->expand(countColomn, currentValue, stringToDisplay);
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if (isSelect == true) {
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m_displayText.setColorBg(etk::Color<>(0x00FF00FF));
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} else {
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m_displayText.setColorBg(etk::Color<>(0x00000000));
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}
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//APPL_DEBUG("display : '" << currentValue << "' == > '" << stringToDisplay << "'");
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//m_displayText.setPos(positionCurentDisplay);
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m_displayText.print(stringToDisplay);
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positionCurentDisplay = m_displayText.getPos();
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countColomn += stringToDisplay.size();
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if (bufferElementSize == 0) {
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bufferElementSize = 1;
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}
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}
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if (tmpCursorPosition.z()!=-1) {
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// display the cursor:
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//APPL_DEBUG("display cursor at position : " << tmpCursorPosition);
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m_displayText.setPos(tmpCursorPosition);
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m_displayText.setColor(etk::Color<>(0xFF0000FF));
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m_displayText.setColorBg(etk::Color<>(0xFF0000FF));
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m_displayText.printCursor(m_insertMode);
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}
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// call the herited class...
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WidgetScrooled::onRegenerateDisplay();
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}
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bool appl::TextViewer::onEventEntry(const ewol::EventEntry& _event) {
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if (m_buffer == NULL) {
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return false;
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}
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// just forward event == > manage directly in the buffer
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if (m_buffer->onEventEntry(_event, m_displayText) == true) {
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markToRedraw();
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return true;
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}
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return false;
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}
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bool appl::TextViewer::onEventInput(const ewol::EventInput& _event) {
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if (m_buffer == NULL) {
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return false;
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}
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keepFocus();
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vec2 relativePos = relativePosition(_event.getPos());
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// invert for the buffer event ...
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relativePos.setY(m_size.y()-relativePos.y());
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// just forward event == > manage directly in the buffer
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if (m_buffer->onEventInput(_event, m_displayText, relativePos) == true) {
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markToRedraw();
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return true;
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}
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return true;
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}
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void appl::TextViewer::onEventClipboard(ewol::clipBoard::clipboardListe_te _clipboardID) {
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if (m_buffer != NULL) {
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etk::UString data = ewol::clipBoard::get(_clipboardID);
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m_buffer->paste(data);
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}
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markToRedraw();
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}
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void appl::TextViewer::onReceiveMessage(const ewol::EMessage& _msg) {
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// force redraw of the widget
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if ( _msg.getMessage() == ednMsgGuiCopy
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|| _msg.getMessage() == ednMsgGuiCut) {
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if (m_buffer != NULL) {
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etk::UString value;
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m_buffer->copy(value);
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if (value.size() != 0) {
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ewol::clipBoard::set(ewol::clipBoard::clipboardStd, value);
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}
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}
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if (_msg.getMessage() == ednMsgGuiCut) {
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m_buffer->removeSelection();
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}
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} else if (_msg.getMessage() == ednMsgGuiPaste) {
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if (m_buffer != NULL) {
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ewol::clipBoard::request(ewol::clipBoard::clipboardStd);
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}
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} else if (_msg.getMessage() == ednMsgGuiUndo) {
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if (m_buffer != NULL) {
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//m_buffer->undo();
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}
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} else if (_msg.getMessage() == ednMsgGuiRedo) {
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if (m_buffer != NULL) {
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//m_buffer->redo();
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}
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}
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markToRedraw();
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}
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void appl::TextViewer::onGetFocus(void) {
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showKeyboard();
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APPL_INFO("Focus - In");
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}
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void appl::TextViewer::onLostFocus(void) {
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hideKeyboard();
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APPL_INFO("Focus - out");
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}
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void appl::TextViewer::setFontSize(int32_t _size) {
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m_displayText.setFontSize(_size);
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setScrollingSize(_size*3.0*1.46); // 1.46 is a magic number ...
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}
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void appl::TextViewer::setFontName(const etk::UString& _fontName) {
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m_displayText.setFontName(_fontName);
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}
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