#include <vector>
#include <string>
+#include <stdint.h>
#include "SDL.h"
#include "math/vector.h"
#include "video/screen.h"
+#include "video/surface.h"
+#include "video/font.h"
-class Surface;
-class Font;
-
-// some constants for predefined layer values
-enum {
- LAYER_BACKGROUND0 = -300,
- LAYER_BACKGROUND1 = -200,
- LAYER_BACKGROUNDTILES = -100,
- LAYER_TILES = 0,
- LAYER_OBJECTS = 100,
- LAYER_FOREGROUNDTILES = 200,
- LAYER_FOREGROUND0 = 300,
- LAYER_FOREGROUND1 = 400,
- LAYER_GUI = 500
-};
-
-/**
- * This class provides functions for drawing things on screen. It also
- * maintains a stack of transforms that are applied to graphics.
- */
-class DrawingContext
-{
-public:
- DrawingContext();
- ~DrawingContext();
-
- /** Adds a drawing request for a surface into the request list */
- void draw_surface(const Surface* surface, const Vector& position, int layer,
- Uint32 drawing_effect = NONE_EFFECT);
- /** Adds a drawing request for part of a surface */
- void draw_surface_part(const Surface* surface, const Vector& source,
- const Vector& size, const Vector& dest, int layer,
- Uint32 drawing_effect = NONE_EFFECT);
- /** draws a text */
- void draw_text(Font* font, const std::string& text, const Vector& position,
- int layer, Uint32 drawing_effect = NONE_EFFECT);
- /** draws aligned text */
- void draw_text_center(Font* font, const std::string& text,
- const Vector& position, int layer, Uint32 drawing_effect = NONE_EFFECT);
- /** draws a color gradient onto the whole screen */
- void draw_gradient(Color from, Color to, int layer);
- /** fills a rectangle */
- void draw_filled_rect(const Vector& topleft, const Vector& size,
- Color color, int layer);
-
- /** Processes all pending drawing requests and flushes the list */
- void do_drawing();
-
- const Vector& get_translation() const
- { return transform.translation; }
- void set_translation(const Vector& newtranslation)
- { transform.translation = newtranslation; }
-
- void push_transform();
- void pop_transform();
-
- /** apply that effect in the next draws (effects are listed on surface.h) */
- void set_drawing_effect(int effect);
-
-private:
- class Transform
+namespace SuperTux
{
- public:
- Vector translation; // only translation for now...
- Vector apply(const Vector& v) const
- {
- return v - translation;
- }
-
- int draw_effect;
- };
-
- /// the transform stack
- std::vector<Transform> transformstack;
- /// the currently active transform
- Transform transform;
-
- enum RequestType
- {
- SURFACE, SURFACE_PART, TEXT, GRADIENT, FILLRECT
- };
-
- struct SurfacePartRequest
- {
- const Surface* surface;
- Vector source, size;
- };
-
- struct TextRequest
- {
- Font* font;
- std::string text;
+ class Surface;
+
+ // some constants for predefined layer values
+ enum {
+ LAYER_BACKGROUND0 = -300,
+ LAYER_BACKGROUND1 = -200,
+ LAYER_BACKGROUNDTILES = -100,
+ LAYER_TILES = 0,
+ LAYER_OBJECTS = 100,
+ LAYER_FOREGROUNDTILES = 200,
+ LAYER_FOREGROUND0 = 300,
+ LAYER_FOREGROUND1 = 400,
+ LAYER_GUI = 500
};
- struct GradientRequest
- {
- Color top, bottom;
- Vector size;
- };
-
- struct FillRectRequest
- {
- Color color;
- Vector size;
- };
-
- struct DrawingRequest
- {
- int layer;
- Uint32 drawing_effect;
-
- RequestType type;
- Vector pos;
-
- void* request_data;
-
- bool operator<(const DrawingRequest& other) const
+ /// Handles drawing of things.
+ /**
+ * This class provides functions for drawing things on screen. It also
+ * maintains a stack of transforms that are applied to graphics.
+ */
+ class DrawingContext
{
- return layer < other.layer;
- }
- };
-
- void draw_surface_part(DrawingRequest& request);
- void draw_text(DrawingRequest& request);
- void draw_gradient(DrawingRequest& request);
- void draw_filled_rect(DrawingRequest& request);
-
- typedef std::vector<DrawingRequest> DrawingRequests;
- DrawingRequests drawingrequests;
-};
+ public:
+ DrawingContext();
+ ~DrawingContext();
+
+ /// Adds a drawing request for a surface into the request list.
+ void draw_surface(const Surface* surface, const Vector& position,
+ int layer, uint32_t drawing_effect = NONE_EFFECT);
+ /// Adds a drawing request for part of a surface.
+ void draw_surface_part(const Surface* surface, const Vector& source,
+ const Vector& size, const Vector& dest, int layer,
+ uint32_t drawing_effect = NONE_EFFECT);
+ /// Draws a text.
+ void draw_text(const Font* font, const std::string& text,
+ const Vector& position, FontAlignment alignment, int layer,
+ uint32_t drawing_effect = NONE_EFFECT);
+
+ /// Draws text on screen center (feed Vector.x with a 0).
+ /// This is the same as draw_text() with a SCREEN_WIDTH/2 position and
+ /// alignment set to LEFT_ALLIGN
+ void draw_center_text(const Font* font, const std::string& text,
+ const Vector& position, int layer,
+ uint32_t drawing_effect = NONE_EFFECT);
+ /// Draws a color gradient onto the whole screen */
+ void draw_gradient(Color from, Color to, int layer);
+ /// Fills a rectangle.
+ void draw_filled_rect(const Vector& topleft, const Vector& size,
+ Color color, int layer);
+
+ /// Processes all pending drawing requests and flushes the list.
+ void do_drawing();
+
+ const Vector& get_translation() const
+ { return transform.translation; }
+ uint32_t get_drawing_effect() const
+ { return transform.drawing_effect; }
+
+ void set_translation(const Vector& newtranslation)
+ { transform.translation = newtranslation; }
+
+ void push_transform();
+ void pop_transform();
+
+ /// Apply that effect in the next draws (effects are listed on surface.h).
+ void set_drawing_effect(int effect);
+ /// apply that zoom in the next draws */
+ void set_zooming(float zoom);
+ /// apply that alpha in the next draws */
+ void set_alpha(int alpha);
+
+ private:
+ class Transform
+ {
+ public:
+ Vector translation;
+ uint32_t drawing_effect;
+ float zoom;
+ int alpha;
+
+ Transform()
+ : drawing_effect(NONE_EFFECT), zoom(1), alpha(255)
+ { }
+
+ Vector apply(const Vector& v) const
+ {
+ return v - translation;
+ }
+ };
+
+ /// the transform stack
+ std::vector<Transform> transformstack;
+ /// the currently active transform
+ Transform transform;
+
+ enum RequestType
+ {
+ SURFACE, SURFACE_PART, TEXT, GRADIENT, FILLRECT
+ };
+
+ struct SurfacePartRequest
+ {
+ const Surface* surface;
+ Vector source, size;
+ };
+
+ struct TextRequest
+ {
+ const Font* font;
+ std::string text;
+ FontAlignment alignment;
+ };
+
+ struct GradientRequest
+ {
+ Color top, bottom;
+ Vector size;
+ };
+
+ struct FillRectRequest
+ {
+ Color color;
+ Vector size;
+ };
+
+ struct DrawingRequest
+ {
+ RequestType type;
+ Vector pos;
+
+ int layer;
+ uint32_t drawing_effect;
+ float zoom;
+ int alpha;
+
+ void* request_data;
+
+ bool operator<(const DrawingRequest& other) const
+ {
+ return layer < other.layer;
+ }
+ };
+
+ void draw_surface_part(DrawingRequest& request);
+ void draw_text(DrawingRequest& request);
+ void draw_text_center(DrawingRequest& request);
+ void draw_gradient(DrawingRequest& request);
+ void draw_filled_rect(DrawingRequest& request);
+
+ typedef std::vector<DrawingRequest> DrawingRequests;
+ DrawingRequests drawingrequests;
+ };
+
+} //namespace SuperTux
#endif /*SUPERTUX_DRAWINGCONTEXT_H*/
projects / supertux.git / blobdiff