void CLCDStreamingText::RecalcTextBoxOrigins() { if (m_Objects.size() <= 1) return; // draw everyone to the left by the offset int nOrgOffset = 0; LCD_OBJECT_LIST::iterator it = m_Objects.begin(); while(it != m_Objects.end()) { CLCDBase* pObject = *it; CLCDText* pText = (CLCDText*)pObject; assert(NULL != pObject); pText->SetLogicalSize(pText->GetHExtent().cx, pText->GetHExtent().cy); // string can be empty which generates zero logical space //assert(pText->GetLogicalSize().cx); //assert(pText->GetLogicalSize().cy); POINT& ptOrigin = pText->GetLogicalOrigin(); if (nOrgOffset == 0) { nOrgOffset = pText->GetLogicalOrigin().x; } pText->SetLogicalOrigin(nOrgOffset, ptOrigin.y); nOrgOffset += pText->GetHExtent().cx; ++it; } }
void CLCDStreamingText::ApplyOrigins(int nOffset) { // draw everyone to the left by the offset LCD_OBJECT_LIST::iterator it = m_Objects.begin(); while(it != m_Objects.end()) { CLCDBase* pObject = *it; CLCDText* pText = (CLCDText*)pObject; assert(NULL != pObject); POINT& ptOrigin = pText->GetLogicalOrigin(); pText->SetLogicalOrigin(ptOrigin.x + nOffset, ptOrigin.y); ++it; } // If the active box is no longer visible, // pop it off the push it to the end of the list if (abs(m_pQueueHead->GetLogicalOrigin().x) >= m_pQueueHead->GetHExtent().cx) { m_Objects.pop_front(); m_Objects.push_back(m_pQueueHead); RecalcTextBoxOrigins(); m_pQueueHead = (CLCDText*)*m_Objects.begin(); } }
int CLCDStreamingText::AddText(LPCTSTR szText) { CLCDText* pText = new CLCDText; pText->Initialize(); pText->SetText(szText); pText->SetOrigin(GetOrigin().x, GetOrigin().y); pText->SetLogicalOrigin(GetLogicalOrigin().x, GetLogicalOrigin().y); pText->SetSize(GetWidth(), GetHeight()); pText->SetBackgroundMode(OPAQUE); LOGFONT lf; GetObject(m_hFont, sizeof(LOGFONT), &lf); pText->SetFont(lf); m_bRecalcExtent = TRUE; m_Objects.push_back(pText); if (NULL == m_pQueueHead) { m_pQueueHead = pText; } // return the zero-based index return (int)(m_Objects.size()-1); }
/****f* EZ.LCD.Wrapper/CEzLcd::AddText * NAME * HANDLE CEzLcd::AddText -- Add a text object to the LCD * INPUTS * type - specifies whether the text is static or * scrolling. Possible types are: LG_SCROLLING_TEXT, * LG_STATIC_TEXT * size - size of the text. Choose between these three: * LG_SMALL, LG_MEDIUM or LG_BIG. * alignment - alignment of the text. Values are: DT_LEFT, * DT_CENTER, DT_RIGHT. * maxLengthPixels - max length in pixels of the text. If the text is * longer and of type LG_STATIC_TEXT, it will be cut * off. If the text is longer and of type * LG_SCROLLING_TEXT, it will scroll. * RETURN VALUE * Handle for this object. * SEE ALSO * CEzLcd::AddIcon * CEzLcd::AddProgressBar ****** */ HANDLE CEzLcd::AddText(LGObjectType type, LGTextSize size, INT alignment, INT maxLengthPixels) { assert(LG_SCROLLING_TEXT == type || LG_STATIC_TEXT == type); CLCDText* staticText; CLCDStreamingText* streamingText; INT boxHeight = LG_MEDIUM_FONT_TEXT_BOX_HEIGHT; INT fontSize = LG_MEDIUM_FONT_SIZE; INT localOriginY = LG_MEDIUM_FONT_LOGICAL_ORIGIN_Y; switch (type) { case LG_SCROLLING_TEXT: streamingText = new CLCDStreamingText(); assert(NULL != streamingText); streamingText->Initialize(); streamingText->SetOrigin(0, 0); streamingText->SetFontFaceName(_T("Tahoma")); streamingText->SetAlignment(alignment); streamingText->SetText(_T(" ")); streamingText->SetGapText(LG_SCROLLING_GAP_TEXT); streamingText->SetSpeed(LG_SCROLLING_SPEED); streamingText->SetScrollingStep(LG_SCROLLING_STEP); streamingText->SetStartDelay(LG_SCROLLING_DELAY_MS); if (LG_SMALL == size) { boxHeight = LG_SMALL_FONT_TEXT_BOX_HEIGHT; fontSize = LG_SMALL_FONT_SIZE; localOriginY = LG_SMALL_FONT_LOGICAL_ORIGIN_Y; } else if (LG_MEDIUM == size) { boxHeight = LG_MEDIUM_FONT_TEXT_BOX_HEIGHT; fontSize = LG_MEDIUM_FONT_SIZE; localOriginY = LG_MEDIUM_FONT_LOGICAL_ORIGIN_Y; } else if (LG_BIG == size) { streamingText->SetFontWeight(FW_BOLD); boxHeight = LG_BIG_FONT_TEXT_BOX_HEIGHT; fontSize = LG_BIG_FONT_SIZE; localOriginY = LG_BIG_FONT_LOGICAL_ORIGIN_Y; } streamingText->SetSize(maxLengthPixels, boxHeight); streamingText->SetFontPointSize(fontSize); streamingText->SetLogicalOrigin(0, localOriginY); streamingText->SetObjectType(LG_SCROLLING_TEXT); AddObject(streamingText); return streamingText; break; case LG_STATIC_TEXT: staticText = new CLCDText(); assert(NULL != staticText); staticText->Initialize(); staticText->SetOrigin(0, 0); staticText->SetFontFaceName(_T("Tahoma")); staticText->SetAlignment(alignment); staticText->SetBackgroundMode(OPAQUE); staticText->SetText(_T(" ")); if (LG_SMALL == size) { boxHeight = LG_SMALL_FONT_TEXT_BOX_HEIGHT; fontSize = LG_SMALL_FONT_SIZE; localOriginY = LG_SMALL_FONT_LOGICAL_ORIGIN_Y; } else if (LG_MEDIUM == size) { boxHeight = LG_MEDIUM_FONT_TEXT_BOX_HEIGHT; fontSize = LG_MEDIUM_FONT_SIZE; localOriginY = LG_MEDIUM_FONT_LOGICAL_ORIGIN_Y; } else if (LG_BIG == size) { staticText->SetFontWeight(FW_BOLD); boxHeight = LG_BIG_FONT_TEXT_BOX_HEIGHT; fontSize = LG_BIG_FONT_SIZE; localOriginY = LG_BIG_FONT_LOGICAL_ORIGIN_Y; } staticText->SetSize(maxLengthPixels, boxHeight); staticText->SetFontPointSize(fontSize); staticText->SetLogicalOrigin(0, localOriginY); staticText->SetObjectType(LG_STATIC_TEXT); AddObject(staticText); return staticText; break; default: Printf(_T("ERROR: trying to add text object with undefined type\n")); } return NULL; }