#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
+#include <X11/extensions/Xrender.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "server.h"
#include "panel.h"
-// 1) resize child
-// 2) resize parent
-// 3) redraw parent
-// 4) redraw child
-void refresh (Area *a)
-{
- if (!a->visible) return;
- size(a);
+/************************************************************
+ * !!! This design is experimental and not yet fully implemented !!!!!!!!!!!!!
+ *
+ * DATA ORGANISATION :
+ * Areas in tint2 are similar to widgets in a GUI.
+ * All graphical objects (panel, taskbar, task, systray, clock, ...) 'inherit' an abstract class 'Area'.
+ * This class 'Area' manage the background, border, size, position and padding.
+ * Area is at the begining of each object (&object == &area).
+ *
+ * tint2 define one panel per monitor. And each panel have a tree of Area.
+ * The root of the tree is Panel.Area. And task, clock, systray, taskbar,... are nodes.
+ *
+ * The tree give the localisation of each object :
+ * - tree's root is in the background while tree's leafe are foreground objects
+ * - position of a node/Area depend on the layout : parent's position (posx, posy), size of previous brothers and parent's padding
+ * - size of a node/Area depend on the content (SIZE_BY_CONTENT objects) or on the layout (SIZE_BY_LAYOUT objects)
+ *
+ * DRAWING AND LAYERING ENGINE :
+ * Redrawing an object (like the clock) could come from an 'external event' (date change)
+ * or from a 'layering event' (position change).
+ * The following 'drawing engine' take care of all 'layering event'.
+ * 1) browse tree SIZE_BY_CONTENT
+ * - resize SIZE_BY_CONTENT node : children are resized before parent
+ * - if 'size' changed then 'resize = 1' on the parent
+ * 2) browse tree SIZE_BY_LAYOUT and POSITION
+ * - resize SIZE_BY_LAYOUT node : parent is resized before children
+ * - if 'size' changed then 'resize = 1' on childs with SIZE_BY_LAYOUT
+ * - calculate position (posx,posy) : parent is calculated before children
+ * - if 'position' changed then 'redraw = 1'
+ * 3) browse tree REDRAW
+ * - redraw needed objects : parent is drawn before children
+ *
+ * CONFIGURE PANEL'S LAYOUT :
+ * 'panel_items' parameter (in config) define the list and the order of nodes in tree's panel.
+ * 'panel_items = SC' define a panel with just Systray and Clock.
+ * So the tree 'Panel.Area' will have 2 childs (Systray and Clock).
+ *
+ * 1) ok
+ * 2) ??
+ * 3) ??
+ * répartition entre niveau global et niveau local ??
+ * size_by_content peut-il modifier redraw=1 en cas de changement ? ou est ce géré par chaque composant ?
+ * size_by_layout peut-il modifier redraw ?
+ *
+ ************************************************************/
+
+
+void size_by_content (Area *a)
+{
+ // don't resize hiden objects
+ if (!a->on_screen) return;
- if (a->redraw) {
- a->redraw = 0;
- //printf("draw area posx %d, width %d\n", a->posx, a->width);
- draw(a, 0);
- if (a->use_active)
- draw(a, 1);
+ // children node are resized before its parent
+ GSList *l;
+ for (l = a->list; l ; l = l->next)
+ size_by_content(l->data);
+
+ // calculate area's size
+ if (a->resize && a->size_mode == SIZE_BY_CONTENT) {
+ a->resize = 0;
+
+ if (a->_resize) {
+ if (a->_resize(a)) {
+ // 'size' changed then 'resize = 1' on the parent
+ ((Area*)a->parent)->resize = 1;
+ }
+ a->redraw = 1;
+ }
}
+}
- // draw current Area
- Pixmap *pmap = (a->is_active == 0) ? (&a->pix.pmap) : (&a->pix_active.pmap);
- XCopyArea (server.dsp, *pmap, ((Panel *)a->panel)->temp_pmap, server.gc, 0, 0, a->width, a->height, a->posx, a->posy);
- // and then refresh child object
+void size_by_layout (Area *a)
+{
+ // don't resize hiden objects
+ if (!a->on_screen) return;
+
+ // parent node is resized before its children
+ // calculate area's size
GSList *l;
- for (l = a->list; l ; l = l->next)
- refresh(l->data);
+ if (a->resize && a->size_mode == SIZE_BY_LAYOUT) {
+ a->resize = 0;
+
+ if (a->_resize) {
+ if (a->_resize(a)) {
+ // if 'size' changed then 'resize = 1' on childs with SIZE_BY_LAYOUT
+ for (l = a->list; l ; l = l->next) {
+ if (((Area*)l->data)->size_mode == SIZE_BY_LAYOUT)
+ ((Area*)l->data)->resize = 1;
+ }
+ }
+ }
+ }
+
+ for (l = a->list; l ; l = l->next)
+ size_by_layout(l->data);
}
-void size (Area *a)
+void refresh (Area *a)
{
- GSList *l;
+ // don't draw and resize hide objects
+ if (!a->on_screen) return;
+
+ // don't draw transparent objects (without foreground and without background)
+ if (a->redraw) {
+ a->redraw = 0;
+ // force redraw of child
+ GSList *l;
+ for (l = a->list ; l ; l = l->next)
+ ((Area*)l->data)->redraw = 1;
+// set_redraw(l->data);
+
+ //printf("draw area posx %d, width %d\n", a->posx, a->width);
+ draw(a);
+ }
- if (a->resize) {
- a->resize = 0;
- for (l = a->list; l ; l = l->next)
- size(l->data);
+ // draw current Area
+ if (a->pix == 0) printf("empty area posx %d, width %d\n", a->posx, a->width);
+ XCopyArea (server.dsp, a->pix, ((Panel *)a->panel)->temp_pmap, server.gc, 0, 0, a->width, a->height, a->posx, a->posy);
- // resize can generate a redraw
- if (a->_resize) {
- a->_resize(a);
- }
- }
+ // and then refresh child object
+ GSList *l;
+ for (l = a->list; l ; l = l->next)
+ refresh(l->data);
}
void set_redraw (Area *a)
{
- a->redraw = 1;
+ a->redraw = 1;
- GSList *l;
- for (l = a->list ; l ; l = l->next)
- set_redraw(l->data);
+ GSList *l;
+ for (l = a->list ; l ; l = l->next)
+ set_redraw(l->data);
}
-void draw (Area *a, int active)
+void draw (Area *a)
{
- Pixmap *pmap = (active == 0) ? (&a->pix.pmap) : (&a->pix_active.pmap);
-
- if (*pmap) XFreePixmap (server.dsp, *pmap);
- *pmap = XCreatePixmap (server.dsp, server.root_win, a->width, a->height, server.depth);
+ if (a->pix) XFreePixmap (server.dsp, a->pix);
+ a->pix = XCreatePixmap (server.dsp, server.root_win, a->width, a->height, server.depth);
- // add layer of root pixmap
- XCopyArea (server.dsp, ((Panel *)a->panel)->temp_pmap, *pmap, server.gc, a->posx, a->posy, a->width, a->height, 0, 0);
+ // add layer of root pixmap (or clear pixmap if real_transparency==true)
+ if (server.real_transparency)
+ clear_pixmap(a->pix, 0 ,0, a->width, a->height);
+ XCopyArea (server.dsp, ((Panel *)a->panel)->temp_pmap, a->pix, server.gc, a->posx, a->posy, a->width, a->height, 0, 0);
- cairo_surface_t *cs;
- cairo_t *c;
+ cairo_surface_t *cs;
+ cairo_t *c;
- cs = cairo_xlib_surface_create (server.dsp, *pmap, server.visual, a->width, a->height);
- c = cairo_create (cs);
+ cs = cairo_xlib_surface_create (server.dsp, a->pix, server.visual, a->width, a->height);
+ c = cairo_create (cs);
- draw_background (a, c, active);
+ draw_background (a, c);
- if (a->_draw_foreground)
- a->_draw_foreground(a, c, active);
+ if (a->_draw_foreground)
+ a->_draw_foreground(a, c);
- cairo_destroy (c);
- cairo_surface_destroy (cs);
+ cairo_destroy (c);
+ cairo_surface_destroy (cs);
}
-void draw_background (Area *a, cairo_t *c, int active)
+void draw_background (Area *a, cairo_t *c)
{
- Pmap *pix = (active == 0) ? (&a->pix) : (&a->pix_active);
-
- if (pix->back.alpha > 0.0) {
- //printf(" draw_background (%d %d) RGBA (%lf, %lf, %lf, %lf)\n", a->posx, a->posy, pix->back.color[0], pix->back.color[1], pix->back.color[2], pix->back.alpha);
- draw_rect(c, pix->border.width, pix->border.width, a->width-(2.0 * pix->border.width), a->height-(2.0*pix->border.width), pix->border.rounded - pix->border.width/1.571);
- cairo_set_source_rgba(c, pix->back.color[0], pix->back.color[1], pix->back.color[2], pix->back.alpha);
-
- cairo_fill(c);
- }
-
- if (pix->border.width > 0 && pix->border.alpha > 0.0) {
- cairo_set_line_width (c, pix->border.width);
-
- // draw border inside (x, y, width, height)
- draw_rect(c, pix->border.width/2.0, pix->border.width/2.0, a->width - pix->border.width, a->height - pix->border.width, pix->border.rounded);
- /*
- // convert : radian = degre * M_PI/180
- // définir le dégradé dans un carré de (0,0) (100,100)
- // ensuite ce dégradé est extrapolé selon le ratio width/height
- // dans repère (0, 0) (100, 100)
- double X0, Y0, X1, Y1, degre;
- // x = X * (a->width / 100), y = Y * (a->height / 100)
- double x0, y0, x1, y1;
- X0 = 0;
- Y0 = 100;
- X1 = 100;
- Y1 = 0;
- degre = 45;
- // et ensuite faire la changement d'unité du repère
- // car ce qui doit resté inchangée est les traits et pas la direction
-
- // il faut d'abord appliquer une rotation de 90° (et -180° si l'angle est supérieur à 180°)
- // ceci peut être appliqué une fois pour toute au départ
- // ensuite calculer l'angle dans le nouveau repère
- // puis faire une rotation de 90°
- x0 = X0 * ((double)a->width / 100);
- x1 = X1 * ((double)a->width / 100);
- y0 = Y0 * ((double)a->height / 100);
- y1 = Y1 * ((double)a->height / 100);
-
- x0 = X0 * ((double)a->height / 100);
- x1 = X1 * ((double)a->height / 100);
- y0 = Y0 * ((double)a->width / 100);
- y1 = Y1 * ((double)a->width / 100);
-
- cairo_pattern_t *linpat;
- linpat = cairo_pattern_create_linear (x0, y0, x1, y1);
- cairo_pattern_add_color_stop_rgba (linpat, 0, a->border.color[0], a->border.color[1], a->border.color[2], a->border.alpha);
- cairo_pattern_add_color_stop_rgba (linpat, 1, a->border.color[0], a->border.color[1], a->border.color[2], 0);
- cairo_set_source (c, linpat);
- */
- cairo_set_source_rgba (c, pix->border.color[0], pix->border.color[1], pix->border.color[2], pix->border.alpha);
-
- cairo_stroke (c);
- //cairo_pattern_destroy (linpat);
- }
+ if (a->bg->back.alpha > 0.0) {
+ //printf(" draw_background (%d %d) RGBA (%lf, %lf, %lf, %lf)\n", a->posx, a->posy, pix->back.color[0], pix->back.color[1], pix->back.color[2], pix->back.alpha);
+ draw_rect(c, a->bg->border.width, a->bg->border.width, a->width-(2.0 * a->bg->border.width), a->height-(2.0*a->bg->border.width), a->bg->border.rounded - a->bg->border.width/1.571);
+ cairo_set_source_rgba(c, a->bg->back.color[0], a->bg->back.color[1], a->bg->back.color[2], a->bg->back.alpha);
+ cairo_fill(c);
+ }
+
+ if (a->bg->border.width > 0 && a->bg->border.alpha > 0.0) {
+ cairo_set_line_width (c, a->bg->border.width);
+
+ // draw border inside (x, y, width, height)
+ draw_rect(c, a->bg->border.width/2.0, a->bg->border.width/2.0, a->width - a->bg->border.width, a->height - a->bg->border.width, a->bg->border.rounded);
+ /*
+ // convert : radian = degre * M_PI/180
+ // definir le degrade dans un carre de (0,0) (100,100)
+ // ensuite ce degrade est extrapoler selon le ratio width/height
+ // dans repere (0, 0) (100, 100)
+ double X0, Y0, X1, Y1, degre;
+ // x = X * (a->width / 100), y = Y * (a->height / 100)
+ double x0, y0, x1, y1;
+ X0 = 0;
+ Y0 = 100;
+ X1 = 100;
+ Y1 = 0;
+ degre = 45;
+ // et ensuite faire la changement d'unite du repere
+ // car ce qui doit reste inchangee est les traits et pas la direction
+
+ // il faut d'abord appliquer une rotation de 90 (et -180 si l'angle est superieur a 180)
+ // ceci peut etre applique une fois pour toute au depart
+ // ensuite calculer l'angle dans le nouveau repare
+ // puis faire une rotation de 90
+ x0 = X0 * ((double)a->width / 100);
+ x1 = X1 * ((double)a->width / 100);
+ y0 = Y0 * ((double)a->height / 100);
+ y1 = Y1 * ((double)a->height / 100);
+
+ x0 = X0 * ((double)a->height / 100);
+ x1 = X1 * ((double)a->height / 100);
+ y0 = Y0 * ((double)a->width / 100);
+ y1 = Y1 * ((double)a->width / 100);
+
+ cairo_pattern_t *linpat;
+ linpat = cairo_pattern_create_linear (x0, y0, x1, y1);
+ cairo_pattern_add_color_stop_rgba (linpat, 0, a->border.color[0], a->border.color[1], a->border.color[2], a->border.alpha);
+ cairo_pattern_add_color_stop_rgba (linpat, 1, a->border.color[0], a->border.color[1], a->border.color[2], 0);
+ cairo_set_source (c, linpat);
+ */
+ cairo_set_source_rgba (c, a->bg->border.color[0], a->bg->border.color[1], a->bg->border.color[2], a->bg->border.alpha);
+
+ cairo_stroke (c);
+ //cairo_pattern_destroy (linpat);
+ }
}
void remove_area (Area *a)
{
- Area *parent = (Area*)a->parent;
+ Area *parent = (Area*)a->parent;
- parent->list = g_slist_remove(parent->list, a);
- set_redraw (parent);
+ parent->list = g_slist_remove(parent->list, a);
+ set_redraw (parent);
}
void add_area (Area *a)
{
- Area *parent = (Area*)a->parent;
+ Area *parent = (Area*)a->parent;
- parent->list = g_slist_remove(parent->list, a);
- set_redraw (parent);
+ parent->list = g_slist_remove(parent->list, a);
+ set_redraw (parent);
}
void free_area (Area *a)
{
- GSList *l0;
- for (l0 = a->list; l0 ; l0 = l0->next)
- free_area (l0->data);
-
- if (a->list) {
- g_slist_free(a->list);
- a->list = 0;
- }
- if (a->pix.pmap) {
- XFreePixmap (server.dsp, a->pix.pmap);
- a->pix.pmap = 0;
+ GSList *l0;
+ for (l0 = a->list; l0 ; l0 = l0->next)
+ free_area (l0->data);
+
+ if (a->list) {
+ g_slist_free(a->list);
+ a->list = 0;
}
- if (a->pix_active.pmap) {
- XFreePixmap (server.dsp, a->pix_active.pmap);
- a->pix_active.pmap = 0;
+ if (a->pix) {
+ XFreePixmap (server.dsp, a->pix);
+ a->pix = 0;
}
}
void draw_rect(cairo_t *c, double x, double y, double w, double h, double r)
{
- if (r > 0.0) {
- double c1 = 0.55228475 * r;
-
- cairo_move_to(c, x+r, y);
- cairo_rel_line_to(c, w-2*r, 0);
- cairo_rel_curve_to(c, c1, 0.0, r, c1, r, r);
- cairo_rel_line_to(c, 0, h-2*r);
- cairo_rel_curve_to(c, 0.0, c1, c1-r, r, -r, r);
- cairo_rel_line_to (c, -w +2*r, 0);
- cairo_rel_curve_to (c, -c1, 0, -r, -c1, -r, -r);
- cairo_rel_line_to (c, 0, -h + 2 * r);
- cairo_rel_curve_to (c, 0, -c1, r - c1, -r, r, -r);
- }
- else
- cairo_rectangle(c, x, y, w, h);
+ if (r > 0.0) {
+ double c1 = 0.55228475 * r;
+
+ cairo_move_to(c, x+r, y);
+ cairo_rel_line_to(c, w-2*r, 0);
+ cairo_rel_curve_to(c, c1, 0.0, r, c1, r, r);
+ cairo_rel_line_to(c, 0, h-2*r);
+ cairo_rel_curve_to(c, 0.0, c1, c1-r, r, -r, r);
+ cairo_rel_line_to (c, -w +2*r, 0);
+ cairo_rel_curve_to (c, -c1, 0, -r, -c1, -r, -r);
+ cairo_rel_line_to (c, 0, -h + 2 * r);
+ cairo_rel_curve_to (c, 0, -c1, r - c1, -r, r, -r);
+ }
+ else
+ cairo_rectangle(c, x, y, w, h);
}
+void clear_pixmap(Pixmap p, int x, int y, int w, int h)
+{
+ Picture pict = XRenderCreatePicture(server.dsp, p, XRenderFindVisualFormat(server.dsp, server.visual), 0, 0);
+ XRenderColor col = { .red=0, .green=0, .blue=0, .alpha=0 };
+ XRenderFillRectangle(server.dsp, PictOpSrc, pict, &col, x, y, w, h);
+ XRenderFreePicture(server.dsp, pict);
+}