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using now nicer font selection which also allows specification of color and size

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This commit is contained in:
Martin Felis (berta) 2010-11-01 22:33:14 +01:00
parent f84184aae1
commit bc53a7fd75
3 changed files with 118 additions and 24 deletions
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11
asteroids/View.cc
View File

@ -40,7 +40,7 @@ int View::OnInit (int argc, char* argv[]) {
mOverlayManager.Register (mConsoleOverlay, GameStateMainMenu);
*/
LoadFont("AldotheApache.ttf", 20);
LoadFont("AldotheApache.ttf size=20 color=#000000");
// This is a simple star field that makes the game so spacy
int i;
@ -411,7 +411,7 @@ void View::DrawUiMainMenu() {
void View::DrawUiGameRunning() {
// We choose a different font and also draw it aligned to the right as this
// looks nicer with the points
SelectFont ("AldotheApache.ttf");
SelectFont ("AldotheApache.ttf size=20 color=#ffffff");
SetFontJustification (Engine::FontJustificationRight);
std::ostringstream out_stream;
@ -530,9 +530,9 @@ void View::DrawUiHighscore() {
// the name)
if (GetModel()->mNewestHighscoreEntryIndex < GetModel()->mHighscoreList.size()
&& GetModel()->mNewestHighscoreEntryIndex == i) {
SetFontColor (224./255., 200/255., 0.);
SelectFont("console.ttf color=#e8d500");
Engine::DrawGLString ( x, y, out_stream.str().c_str());
SetFontColor (1., 1., 1.);
SelectFont("console.ttf color=#ffffff");
} else {
Engine::DrawGLString ( x, y, out_stream.str().c_str());
}
@ -554,7 +554,8 @@ void View::DrawUiEnterPlayername() {
// Enter your name
std::string player_name = GetModel()->GetPlayerName();
SelectFont("console.ttf");
Engine::GUI::Label (1, "Enter your name: ", screen_right * 0.5 - 100, 250);
if (Engine::GUI::LineEdit (2, screen_right * 0.5 + 20, 238, player_name, 16)) {

111
engine/ViewBase.cc
View File

@ -55,7 +55,6 @@ int ViewBase::OnInit (int argc, char* argv[]) {
LoadFont ("console.ttf");
mCurrentFont = mFonts["console.ttf"];
SetFontColor (1., 1., 1.);
// Overlays
OverlayBasePtr console_overlay(new SimpleConsoleOverlay);
@ -189,20 +188,107 @@ void ViewBase::PostDraw() {
}
/* Fonts */
bool ViewBase::LoadFont (const char *font_name, float point_size) {
/** \brief Parses font specifications strings into its values
*
* Fonts can be specified by strings such as
* name=default.ttf color=#ff0000 size=12
* color=#ff00ff size=12 otherfont.ttf
* myfont.ttf
* for which the appropriate values will be parsed. Default size is 12 and
* default color is white (#ffffff)
*/
void parse_font_spec_string (const std::string &spec_string,
std::string &font_name,
float font_color[3],
float *font_size) {
// set default values
font_name = "default.ttf";
font_color[0] = 1.f;
font_color[1] = 1.f;
font_color[2] = 1.f;
*font_size = 12.f;
// perform the actual parsing
std::string::size_type pos = 0;
while (pos < spec_string.size()) {
std::string::size_type next_start = spec_string.find_first_not_of(" \t", pos);
// if we don't find anything we break out of this loop
if (next_start == std::string::npos)
break;
// find the next token
std::string::size_type next_end = spec_string.find_first_of("\t ", next_start);
std::string token (spec_string.substr(next_start, next_end - next_start));
// If no id was given it is automatically set to name
std::string id("name");
std::string value(token);
// Split the token into id and value if there is an '=' sign.
if (token.find('=', 0) != std::string::npos) {
id = token.substr(0, token.find('=',0));
value = token.substr(id.size() + 1, token.size());
}
// std::cout << "id = " << id << " value = " << value << std::endl;
if (id == "name")
font_name = value;
else if (id == "size") {
std::istringstream istr(value);
istr >> *font_size;
} else if (id == "color") {
// we assume #RRGGBB specification
if (value[0] != '#' || value.size() != 7)
LogError ("Invalid font color specification '%s'. Please specify as #rrggbb!", value.c_str());
// convert the color string to float values
int num;
std::istringstream istr(value.substr(1, 2));
istr >> std::hex >> num;
font_color[0] = static_cast<float>(num) / 255.;
istr.clear();
istr.str(value.substr(3,2));
istr >> std::hex >> num;
font_color[1] = static_cast<float>(num) / 255.;
istr.clear();
istr.str(value.substr(5,2));
istr >> std::hex >> num;
font_color[2] = static_cast<float>(num) / 255.;
}
pos = next_end;
}
}
bool ViewBase::LoadFont (const std::string &font_spec_string) {
// font_spec_string can be of the form
// (name=)<name> (color=<color>) (size=<size>)
std::string font_name;
float font_size = 12.;
float font_color[3] = {1., 1., 1.};
parse_font_spec_string(font_spec_string, font_name, font_color, &font_size);
std::string font_path ("./data/fonts/");
font_path += font_name;
LogDebug ("Loading font %s size %f from %s", font_name, point_size, font_path.c_str());
OGLFT::Monochrome *font = new OGLFT::Monochrome (font_path.c_str(), point_size);
LogDebug ("Loading font %s color (%1.2f, %1.2f, %1.2f) size %f from %s", font_name.c_str(), font_color[0], font_color[1], font_color[2], font_size, font_path.c_str());
OGLFT::Monochrome *font = new OGLFT::Monochrome (font_path.c_str(), font_size);
if ( font == 0 || !font->isValid() ) {
LogError ("Could not load font %s!", font_path.c_str());
return false;
}
font->setForegroundColor(1., 1., 1.);
mFonts.insert(std::make_pair<std::string, OGLFT::Monochrome*>(font_name, font));
font->setForegroundColor(font_color[0], font_color[1], font_color[2]);
mFonts.insert(std::make_pair<std::string, OGLFT::Monochrome*>(font_spec_string, font));
return true;
}
@ -217,8 +303,10 @@ void ViewBase::SelectFont (const char *font) {
return;
}
LogDebug ("Font %s not found, trying to load it", font);
LogDebug ("Selecting font %s failed, trying to load it", font);
LogDebug ("font count = %d", mFonts.size());
if (LoadFont (font)) {
LogDebug ("font count = %d", mFonts.size());
font_iter = mFonts.find(font);
assert (mFonts.find(font) != mFonts.end());
@ -232,6 +320,8 @@ void ViewBase::SelectFont (const char *font) {
}
void ViewBase::SetFontJustification (FontJustification justification) {
assert (mCurrentFont != NULL);
if (justification == FontJustificationRight)
mCurrentFont->setHorizontalJustification(OGLFT::Face::RIGHT);
else if (justification == FontJustificationCenter)
@ -240,11 +330,6 @@ void ViewBase::SetFontJustification (FontJustification justification) {
}
void ViewBase::SetFontColor (float r, float g, float b) {
assert (mCurrentFont);
mCurrentFont->setForegroundColor(r, g, b);
};
void ViewBase::DrawGLString (float x, float y, const char* str) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
mCurrentFont->draw (x, y, str);

20
engine/ViewBase.h
View File

@ -36,14 +36,20 @@ class ViewBase : public Module{
virtual void Draw ();
/* Fonts */
bool LoadFont (const char *font_name, float point_size=12);
void SelectFont (const char *font_name);
void SetFontJustification (FontJustification justification);
/** \brief Sets the color of the current font
/** \brief Selects a font with a given specification or loads it if it was not found
*
* Fonts can be specified by strings such as
* "name=default.ttf color=#ff0000 size=12"
* "color=#ff00ff size=12 otherfont.ttf"
* "myfont.ttf"
* for which the appropriate values will be parsed.
*
* \note This function should be avoided as the glyphs have to be re-rendered
* Default size is 12 and default color is white (#ffffff).
*/
void SetFontColor (float r, float g, float b);
void SelectFont (const char *font_spec);
void SetFontJustification (FontJustification justification);
/** \brief Draws a string at the given position using current projection
* and modelview matrices */
void DrawGLString (float x, float y, const char* str);
@ -94,6 +100,8 @@ class ViewBase : public Module{
void DrawGrid ();
bool mDrawGrid;
/** \brief Loads a font that was not yet loaded */
bool LoadFont (const std::string &font_spec_string);
ModelBase *mModel;
CameraBase *mCamera;