| 1 | #ifndef _DRAWING_H |
| 2 | #define _DRAWING_H |
| 3 | |
| 4 | #include <glib.h> |
| 5 | #include <gdk/gdk.h> |
| 6 | #include <gtk/gtk.h> |
| 7 | #include <ltt/ltt.h> |
| 8 | #include "CFV.h" |
| 9 | #include "Draw_Item.h" |
| 10 | |
| 11 | |
| 12 | #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer |
| 13 | |
| 14 | /* This part of the viewer does : |
| 15 | * Draw horizontal lines, getting graphic context as arg. |
| 16 | * Copy region of the screen into another. |
| 17 | * Modify the boundaries to reflect a scale change. (resize) |
| 18 | * Refresh the physical screen with the pixmap |
| 19 | * A helper function is provided here to convert from time to process |
| 20 | * identifier to pixels and the contrary (will be useful for mouse selection). |
| 21 | * Insert an empty square in the drawing, moving the bottom part. |
| 22 | * |
| 23 | * Note: The last point is exactly why it would not be so easy to add the |
| 24 | * vertical line functionnality as in the original version of LTT. In order |
| 25 | * to do so, we should keep all processes in the list for the duration of |
| 26 | * all the trace instead of dynamically adding and removing them when we |
| 27 | * scroll. Another possibility is to redraw all the visible area when a new |
| 28 | * process is added to the list. The second solution seems more appropriate |
| 29 | * to me. |
| 30 | * |
| 31 | * |
| 32 | * The pixmap used has the width of the physical window, but the height |
| 33 | * of the shown processes. |
| 34 | */ |
| 35 | |
| 36 | typedef struct _Drawing_t Drawing_t; |
| 37 | |
| 38 | struct _Drawing_t { |
| 39 | GtkWidget *drawing_area; |
| 40 | GdkPixmap *pixmap; |
| 41 | ControlFlowData *control_flow_data; |
| 42 | |
| 43 | PangoLayout *pango_layout; |
| 44 | |
| 45 | gint height, width, depth; |
| 46 | |
| 47 | }; |
| 48 | |
| 49 | Drawing_t *drawing_construct(ControlFlowData *control_flow_data); |
| 50 | void drawing_destroy(Drawing_t *drawing); |
| 51 | |
| 52 | GtkWidget *drawing_get_widget(Drawing_t *drawing); |
| 53 | |
| 54 | //void drawing_Refresh ( Drawing_t *drawing, |
| 55 | // guint x, guint y, |
| 56 | // guint width, guint height); |
| 57 | |
| 58 | void drawing_draw_line( Drawing_t *drawing, |
| 59 | GdkPixmap *pixmap, |
| 60 | guint x1, guint y1, |
| 61 | guint x2, guint y2, |
| 62 | GdkGC *GC); |
| 63 | |
| 64 | //void drawing_copy( Drawing_t *drawing, |
| 65 | // guint xsrc, guint ysrc, |
| 66 | // guint xdest, guint ydest, |
| 67 | // guint width, guint height); |
| 68 | |
| 69 | /* Insert a square corresponding to a new process in the list */ |
| 70 | void drawing_insert_square(Drawing_t *drawing, |
| 71 | guint y, |
| 72 | guint height); |
| 73 | |
| 74 | /* Remove a square corresponding to a removed process in the list */ |
| 75 | void drawing_remove_square(Drawing_t *drawing, |
| 76 | guint y, |
| 77 | guint height); |
| 78 | |
| 79 | |
| 80 | //void drawing_Resize(Drawing_t *drawing, guint h, guint w); |
| 81 | |
| 82 | void convert_pixels_to_time( |
| 83 | gint width, |
| 84 | guint x, |
| 85 | LttTime *window_time_begin, |
| 86 | LttTime *window_time_end, |
| 87 | LttTime *time); |
| 88 | |
| 89 | void convert_time_to_pixels( |
| 90 | LttTime window_time_begin, |
| 91 | LttTime window_time_end, |
| 92 | LttTime time, |
| 93 | gint width, |
| 94 | guint *x); |
| 95 | |
| 96 | #endif // _DRAWING_H |