File size: 4,176 Bytes
9abace2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /*
* Sovereign IDE — Layout Engine
* Computes pixel rects for all panels from sidebar_w, chat_w, bottom_h.
* No recursion — straightforward arithmetic.
*/
#include "layout.h"
#include <string.h>
void layout_init(Layout *l) {
memset(l, 0, sizeof(*l));
l->sidebar_w = SIDEBAR_DEFAULT_W;
l->chat_w = CHAT_DEFAULT_W;
l->bottom_h = BOTTOM_DEFAULT_H;
l->sidebar_visible = true;
l->chat_visible = true;
l->bottom_visible = true;
}
void layout_compute(const Layout *l, int W, int H, PanelRect rects[PANEL_COUNT]) {
int status_h = STATUSBAR_H;
int usable_h = H - status_h; /* above status bar */
int left_x = l->sidebar_visible ? l->sidebar_w + SPLITTER_THICK : 0;
int right_x = W - (l->chat_visible ? l->chat_w + SPLITTER_THICK : 0);
int center_w = right_x - left_x;
if (center_w < 0) center_w = 0;
int bottom_h_actual = l->bottom_visible ? l->bottom_h + SPLITTER_THICK : 0;
int editor_h = usable_h - bottom_h_actual;
if (editor_h < 40) editor_h = 40;
/* Sidebar */
rects[PANEL_SIDEBAR].x = 0;
rects[PANEL_SIDEBAR].y = 0;
rects[PANEL_SIDEBAR].w = l->sidebar_visible ? l->sidebar_w : 0;
rects[PANEL_SIDEBAR].h = usable_h;
/* Editor */
rects[PANEL_EDITOR].x = left_x;
rects[PANEL_EDITOR].y = 0;
rects[PANEL_EDITOR].w = center_w;
rects[PANEL_EDITOR].h = editor_h;
/* Bottom panel */
rects[PANEL_BOTTOM].x = left_x;
rects[PANEL_BOTTOM].y = editor_h + (l->bottom_visible ? SPLITTER_THICK : 0);
rects[PANEL_BOTTOM].w = center_w;
rects[PANEL_BOTTOM].h = l->bottom_visible ? l->bottom_h : 0;
/* Chat panel */
rects[PANEL_CHAT].x = right_x + (l->chat_visible ? SPLITTER_THICK : 0) - (l->chat_visible ? 0 : SPLITTER_THICK);
rects[PANEL_CHAT].x = l->chat_visible ? (W - l->chat_w) : W;
rects[PANEL_CHAT].y = 0;
rects[PANEL_CHAT].w = l->chat_visible ? l->chat_w : 0;
rects[PANEL_CHAT].h = usable_h;
/* Status bar */
rects[PANEL_STATUSBAR].x = 0;
rects[PANEL_STATUSBAR].y = H - status_h;
rects[PANEL_STATUSBAR].w = W;
rects[PANEL_STATUSBAR].h = status_h;
}
int layout_hit_splitter(const Layout *l, int W, int H, int mx, int my) {
int status_h = STATUSBAR_H;
int usable_h = H - status_h;
/* Left splitter */
if (l->sidebar_visible) {
if (mx >= l->sidebar_w && mx < l->sidebar_w + SPLITTER_THICK && my < usable_h)
return 0;
}
/* Right splitter */
if (l->chat_visible) {
int rx = W - l->chat_w - SPLITTER_THICK;
if (mx >= rx && mx < rx + SPLITTER_THICK && my < usable_h)
return 1;
}
/* Bottom splitter */
if (l->bottom_visible) {
int bottom_h_actual = l->bottom_h + SPLITTER_THICK;
int by = (usable_h - bottom_h_actual);
if (my >= by && my < by + SPLITTER_THICK)
return 2;
}
return -1;
}
void layout_begin_drag(Layout *l, int splitter, int mx, int my) {
l->dragging = true;
l->drag_panel = splitter;
l->drag_start_x = mx;
l->drag_start_y = my;
if (splitter == 0) l->drag_start_val = l->sidebar_w;
if (splitter == 1) l->drag_start_val = l->chat_w;
if (splitter == 2) l->drag_start_val = l->bottom_h;
}
void layout_update_drag(Layout *l, int mx, int my) {
if (!l->dragging) return;
int delta_x = mx - l->drag_start_x;
int delta_y = my - l->drag_start_y;
if (l->drag_panel == 0) {
l->sidebar_w = l->drag_start_val + delta_x;
if (l->sidebar_w < 80) l->sidebar_w = 80;
if (l->sidebar_w > 600) l->sidebar_w = 600;
} else if (l->drag_panel == 1) {
l->chat_w = l->drag_start_val - delta_x;
if (l->chat_w < 80) l->chat_w = 80;
if (l->chat_w > 600) l->chat_w = 600;
} else if (l->drag_panel == 2) {
l->bottom_h = l->drag_start_val - delta_y;
if (l->bottom_h < 60) l->bottom_h = 60;
if (l->bottom_h > 600) l->bottom_h = 600;
}
}
void layout_end_drag(Layout *l) {
l->dragging = false;
}
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