diff options
Diffstat (limited to 'Project/Text.cpp')
| -rw-r--r-- | Project/Text.cpp | 154 |
1 files changed, 131 insertions, 23 deletions
diff --git a/Project/Text.cpp b/Project/Text.cpp index 2d53c3c..d633bdc 100644 --- a/Project/Text.cpp +++ b/Project/Text.cpp @@ -32,18 +32,34 @@ #include "Inductor.h" #include "Capacitor.h" -Text::Text() : GraphicalElement() { SetText(m_text); } +Text::Text() : GraphicalElement() +{ + Init(); + SetText(m_text); +} Text::Text(wxPoint2DDouble position) : GraphicalElement() { m_position = position; + Init(); SetText(m_text); } Text::~Text() { - if(m_glString) delete m_glString; - if(m_glStringArray) delete m_glStringArray; + // if(m_glString) delete m_glString; + // if(m_glStringArray) delete m_glStringArray; + if(m_textureID) { + glDeleteTextures(1, m_textureID); + } } + +void Text::Init() +{ + m_textCoord = new wxPoint2DDouble[2]; + m_textCoord[0] = wxPoint2DDouble(0, 1); + m_textCoord[1] = wxPoint2DDouble(1, 0); +} + bool Text::Contains(wxPoint2DDouble position) const { wxPoint2DDouble ptR = RotateAtPosition(position, -m_angle); @@ -52,7 +68,7 @@ bool Text::Contains(wxPoint2DDouble position) const void Text::Draw(wxPoint2DDouble translation, double scale) { - wxScreenDC dc; + // wxScreenDC dc; // Draw selection rectangle @@ -72,20 +88,34 @@ void Text::Draw(wxPoint2DDouble translation, double scale) // Draw text (layer 2) glEnable(GL_TEXTURE_2D); glColor4d(0.0, 0.0, 0.0, 1.0); - if(!m_isMultlineText) { // Only one line - m_glString->bind(); - m_glString->render(m_position.m_x, m_position.m_y); - } else { // Multiples lines - m_glStringArray->bind(); - // The text will be printed centralized. - double lineHeight = m_height / (double)m_numberOfLines; - for(int i = 0; i < m_numberOfLines; i++) { - m_glStringArray->get(i) - .render(m_position.m_x, m_position.m_y - m_height / 2.0 + lineHeight / 2.0 + lineHeight * double(i)); - } - } - glDisable(GL_TEXTURE_2D); + if(m_textureID) { + glPushMatrix(); + + glTranslated(m_position.m_x - m_width / 2, m_position.m_y - m_height / 2, 0); + if(m_angle != 0) glRotatef(m_angle, 0, 0, 1); + + glEnable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, m_textureID[0]); + glBegin(GL_QUADS); + + glTexCoord2f(m_textCoord[0].m_x, m_textCoord[0].m_y); + glVertex2f(0, 0); + + glTexCoord2f(m_textCoord[1].m_x, m_textCoord[0].m_y); + glVertex2f(m_width, 0); + + glTexCoord2f(m_textCoord[1].m_x, m_textCoord[1].m_y); + glVertex2f(m_width, m_height); + + glTexCoord2f(m_textCoord[0].m_x, m_textCoord[1].m_y); + glVertex2f(0, m_height); + glEnd(); + + glDisable(GL_TEXTURE_2D); + + glPopMatrix(); + } glPopMatrix(); } @@ -97,10 +127,11 @@ bool Text::Intersects(wxRect2DDouble rect) const void Text::SetText(wxString text) { + /* glEnable(GL_TEXTURE_2D); m_text = text; - //wxFont font(m_fontSize, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL); - wxFont font = wxSystemSettings::GetFont(wxSYS_SYSTEM_FONT); + wxFont font(m_fontSize, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL); + //wxFont font = wxSystemSettings::GetFont(wxSYS_SYSTEM_FONT); wxScreenDC dc; GLuint* idString = NULL; @@ -157,7 +188,13 @@ void Text::SetText(wxString text) // Update text rectangle. SetPosition(m_position); - glDisable(GL_TEXTURE_2D); + glDisable(GL_TEXTURE_2D);*/ + m_text = text; + TextToBitmap(); + LoadTextTexture(); + m_width = m_bitmapSize.GetWidth(); + m_height = m_bitmapSize.GetHeight(); + SetPosition(m_position); } void Text::Rotate(bool clockwise) @@ -969,9 +1006,80 @@ Element* Text::GetCopy() { Text* copy = new Text(); *copy = *this; - // The pointers to wxGLString must be different or can cause crashes. - copy->m_glString = NULL; - copy->m_glStringArray = NULL; + copy->Init(); + copy->m_textureID = NULL; + copy->m_bitmapSize = wxSize(0, 0); + copy->m_bitmap = wxNullBitmap; copy->SetText(copy->m_text); return copy; } + +void Text::TextToBitmap() +{ + wxFont font = wxFont(m_fontSize, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL); + + wxMemoryDC memDC; + memDC.SetFont(font); + m_bitmapSize = memDC.GetTextExtent(m_text); + + int p2w = RoundToPowerOfTwo(m_bitmapSize.GetWidth()); + int p2h = RoundToPowerOfTwo(m_bitmapSize.GetHeight()); + + m_bitmap = wxBitmap(p2w, p2h); + + memDC.SelectObject(m_bitmap); + memDC.SetBackground(*wxWHITE_BRUSH); + memDC.Clear(); + memDC.DrawText(m_text, 0, 0); + + m_textCoord[1].m_x = static_cast<double>(m_bitmapSize.GetWidth()) / static_cast<double>(p2w); + m_textCoord[1].m_y = 1.0 - static_cast<double>(m_bitmapSize.GetHeight()) / static_cast<double>(p2h); +} + +void Text::LoadTextTexture() +{ + if(m_textureID) glDeleteTextures(1, m_textureID); + m_textureID = new GLuint[1]; + glGenTextures(1, &m_textureID[0]); + + glBindTexture(GL_TEXTURE_2D, *m_textureID); + + wxImage img = m_bitmap.ConvertToImage(); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + const int w = img.GetWidth(), h = img.GetHeight(); + int bytesPerPixel = 4; + GLubyte* bitmapData = img.GetData(); + int imageSize = w * h * bytesPerPixel; + GLubyte* imageData = new GLubyte[imageSize]; + int revVal = h - 1; + + for(int y = 0; y < h; y++) { + for(int x = 0; x < w; x++) { + imageData[(x + y * w) * bytesPerPixel + 0] = 255; + imageData[(x + y * w) * bytesPerPixel + 1] = 255; + imageData[(x + y * w) * bytesPerPixel + 2] = 255; + + // alpha + imageData[(x + y * w) * bytesPerPixel + 3] = 255 - bitmapData[(x + (revVal - y) * w) * 3]; + } + } + + glTexImage2D(GL_TEXTURE_2D, 0, bytesPerPixel, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, imageData); + delete imageData; + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); +} + +int Text::RoundToPowerOfTwo(int value, int min) +{ + //[Ref] https://stackoverflow.com/questions/466204/rounding-up-to-next-power-of-2 + double baseOfTwo = std::log(static_cast<double>(value)) / std::log(2.0); + int powerOfTwo = static_cast<int>(std::pow(2.0, static_cast<int>(std::ceil(baseOfTwo)))); + return std::max(min, powerOfTwo); +}
\ No newline at end of file |