// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
+#include <config.h>
+
#include <cstdlib>
#include <cstring>
+#include <stdexcept>
-#include "../app/globals.h"
-#include "../video/screen.h"
-#include "../video/font.h"
-#include "../video/drawing_context.h"
-#include "../utils/lispreader.h"
+#include "app/globals.h"
+#include "lisp/parser.h"
+#include "lisp/lisp.h"
+#include "screen.h"
+#include "font.h"
+#include "drawing_context.h"
using namespace SuperTux;
}
float
+Font::get_text_width(const std::string& text) const
+{
+ /** Let's calculate the size of the biggest paragraph */
+ std::string::size_type l, hl, ol;
+ hl = 0; l = 0;
+ while(true)
+ {
+ ol = l;
+ l = text.find("\n", l+1);
+ if(l == std::string::npos)
+ break;
+ if(hl < l-ol)
+ hl = l-ol;
+ }
+ if(hl == 0)
+ hl = text.size();
+
+ return hl * w;
+}
+
+float
+Font::get_text_height(const std::string& text) const
+{
+ /** Let's calculate height of the text */
+ std::string::size_type l, hh;
+ hh = h; l = 0;
+ while(true)
+ {
+ l = text.find("\n", l+1);
+ if(l == std::string::npos)
+ break;
+ hh += h + 2;
+ }
+
+ return hh;
+}
+
+float
Font::get_height() const
{
return h;
}
-float
-Font::get_text_width(const std::string& text) const
+void
+Font::draw(const std::string& text, const Vector& pos_, FontAlignment alignment,
+ uint32_t drawing_effect, uint8_t alpha) const
{
- return text.size() * w;
+ /* Cut lines changes into seperate strings, needed to support center/right text
+ alignments with break lines.
+ Feel free to replace this hack with a more elegant solution
+ */
+ char temp[1024];
+ std::string::size_type l, i, y;
+ bool done = false;
+ i = y = 0;
+
+ while(!done)
+ {
+ l = text.find("\n", i);
+ if(l == std::string::npos)
+ {
+ l = text.size();
+ done = true;
+ }
+
+ temp[text.copy(temp, l - i, i)] = '\0';
+
+ // calculate X positions based on the alignment type
+ Vector pos = Vector(pos_);
+ if(alignment == CENTER_ALLIGN)
+ pos.x -= get_text_width(temp) / 2;
+ else if(alignment == RIGHT_ALLIGN)
+ pos.x -= get_text_width(temp);
+
+ draw_text(temp, pos + Vector(0,y), drawing_effect, alpha);
+
+ i = l+1;
+ y += h + 2;
+ }
}
void
-Font::draw(const std::string& text, const Vector& pos, Uint32 drawing_effect)
+Font::draw_text(const std::string& text, const Vector& pos,
+ uint32_t drawing_effect, uint8_t alpha) const
{
if(shadowsize > 0)
draw_chars(shadow_chars, text, pos + Vector(shadowsize, shadowsize),
- drawing_effect);
+ drawing_effect, alpha);
- draw_chars(chars, text, pos, drawing_effect);
+ draw_chars(chars, text, pos, drawing_effect, alpha);
}
void
Font::draw_chars(Surface* pchars, const std::string& text, const Vector& pos,
- Uint32 drawing_effect)
+ uint32_t drawing_effect, uint8_t alpha) const
{
SurfaceImpl* impl = pchars->impl;
int source_x = (index % 16) * w;
int source_y = (index / 16) * h;
- impl->draw_part(source_x, source_y, p.x, p.y, w, h, 255, drawing_effect);
+ impl->draw_part(source_x, source_y, p.x, p.y, w, h, alpha, drawing_effect);
p.x += w;
}
}
-/* --- SCROLL TEXT FUNCTION --- */
-
-#define MAX_VEL 10
-#define SPEED_INC 0.01
-#define SCROLL 60
-#define ITEMS_SPACE 4
-
-void SuperTux::display_text_file(const std::string& file, float scroll_speed, Font* heading_font, Font* normal_font, Font* small_font, Font* reference_font )
-{
- std::string text;
- std::vector<std::string> names;
-
- LispReader* reader = LispReader::load(datadir + "/" + file, "supertux-text");
-
- if(!reader)
- {
- std::cerr << "Error: Could not open text. Ignoring...\n";
- return;
- }
-
- reader->read_string("text", text, true);
- std::string background_file;
- reader->read_string("background", background_file, true);
- delete reader;
-
- // Split text string lines into a vector
- names.clear();
- unsigned int i, l;
- i = 0;
- while(true)
- {
- l = text.find("\n", i);
-
- if(l == std::string::npos)
- {
- char temp[1024];
- temp[text.copy(temp, text.size() - i, i)] = '\0';
- names.push_back(temp);
- break;
- }
-
- char temp[1024];
- temp[text.copy(temp, l-i, i)] = '\0';
- names.push_back(temp);
-
- i = l+1;
- }
-
- // load background image
- Surface* background = new Surface(datadir + "/images/background/" + background_file, false);
-
- int done = 0;
- float scroll = 0;
- float speed = scroll_speed / 50;
-
- DrawingContext context;
- SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
-
- Uint32 lastticks = SDL_GetTicks();
- while(!done)
- {
- /* in case of input, exit */
- SDL_Event event;
- while(SDL_PollEvent(&event))
- switch(event.type)
- {
- case SDL_KEYDOWN:
- switch(event.key.keysym.sym)
- {
- case SDLK_UP:
- speed -= SPEED_INC;
- break;
- case SDLK_DOWN:
- speed += SPEED_INC;
- break;
- case SDLK_SPACE:
- case SDLK_RETURN:
- if(speed >= 0)
- scroll += SCROLL;
- break;
- case SDLK_ESCAPE:
- done = 1;
- break;
- default:
- break;
- }
- break;
- case SDL_QUIT:
- done = 1;
- break;
- default:
- break;
- }
-
- if(speed > MAX_VEL)
- speed = MAX_VEL;
- else if(speed < -MAX_VEL)
- speed = -MAX_VEL;
-
- /* draw the credits */
- context.draw_surface(background, Vector(0,0), 0);
-
- float y = 0;
- for(size_t i = 0; i < names.size(); i++) {
- if(names[i].size() == 0) {
- y += normal_font->get_height() + ITEMS_SPACE;
- continue;
- }
-
- Font* font = 0;
- switch(names[i][0])
- {
- case ' ': font = small_font; break;
- case '\t': font = normal_font; break;
- case '-': font = heading_font; break;
- case '*': font = reference_font; break;
- default: font = reference_font; break;
- }
-
- context.draw_text_center(font,
- names[i].substr(1, names[i].size()-1),
- Vector(0, screen->h + y - scroll), LAYER_FOREGROUND1);
- y += font->get_height() + ITEMS_SPACE;
- }
-
- context.do_drawing();
-
- if(screen->h+y-scroll < 0 && 20+screen->h+y-scroll < 0)
- done = 1;
-
- Uint32 ticks = SDL_GetTicks();
- scroll += speed * (ticks - lastticks);
- lastticks = ticks;
- if(scroll < 0)
- scroll = 0;
-
- SDL_Delay(10);
- }
-
- SDL_EnableKeyRepeat(0, 0); // disables key repeating
- delete background;
-}
-
projects / supertux.git / blobdiff