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feat: spreadsheet cell resizing

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This commit is contained in:
Daniel Hammer
2026-03-06 16:46:15 +01:00
parent 3985188baa
commit 729c227b35
15 changed files with 194 additions and 5 deletions
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programs/include/Api/Syscall.hpp
+3 -1
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@@ -77,6 +77,7 @@ namespace Montauk {
static constexpr uint64_t SYS_WINRESIZE = 64;
static constexpr uint64_t SYS_WINSETSCALE = 65;
static constexpr uint64_t SYS_WINGETSCALE = 66;
static constexpr uint64_t SYS_WINSETCURSOR = 68;
// Process management syscalls
static constexpr uint64_t SYS_PROCLIST = 61;
@@ -156,7 +157,8 @@ namespace Montauk {
char title[64];
int32_t width, height;
uint8_t dirty;
uint8_t _pad2[3];
uint8_t cursor; // 0=arrow, 1=resize_h, 2=resize_v
uint8_t _pad2[2];
};
struct WinCreateResult {
programs/include/gui/truetype.hpp
+51
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@@ -277,6 +277,57 @@ struct TrueTypeFont {
}
}
// Draw text to buffer with clip rectangle (pixels outside clip_x..clip_x+clip_w are not drawn)
void draw_to_buffer_clipped(uint32_t* pixels, int buf_w, int buf_h,
int x, int y, const char* text,
Color color, int pixel_size,
int clip_x, int clip_y, int clip_w, int clip_h) {
if (!valid) return;
GlyphCache* gc = get_cache(pixel_size);
int cx = x;
int baseline = y + gc->ascent;
int clip_x2 = clip_x + clip_w;
int clip_y2 = clip_y + clip_h;
for (int i = 0; text[i]; i++) {
CachedGlyph* g = get_glyph(gc, (unsigned char)text[i]);
if (!g) continue;
if (g->bitmap) {
int gx = cx + g->xoff;
int gy = baseline + g->yoff;
for (int row = 0; row < g->height; row++) {
int dy = gy + row;
if (dy < clip_y || dy >= clip_y2 || dy < 0 || dy >= buf_h) continue;
for (int col = 0; col < g->width; col++) {
int dx = gx + col;
if (dx < clip_x || dx >= clip_x2 || dx < 0 || dx >= buf_w) continue;
uint8_t alpha = g->bitmap[row * g->width + col];
if (alpha == 0) continue;
if (alpha == 255) {
pixels[dy * buf_w + dx] =
0xFF000000 | ((uint32_t)color.r << 16) |
((uint32_t)color.g << 8) | color.b;
} else {
uint32_t dst = pixels[dy * buf_w + dx];
uint8_t dr = (dst >> 16) & 0xFF;
uint8_t dg = (dst >> 8) & 0xFF;
uint8_t db = dst & 0xFF;
uint32_t a = alpha, inv_a = 255 - alpha;
uint32_t rr = (a * color.r + inv_a * dr + 128) / 255;
uint32_t gg = (a * color.g + inv_a * dg + 128) / 255;
uint32_t bb = (a * color.b + inv_a * db + 128) / 255;
pixels[dy * buf_w + dx] =
0xFF000000 | (rr << 16) | (gg << 8) | bb;
}
}
}
}
cx += g->advance;
}
}
// Draw single character to buffer, returning advance width
int draw_char_to_buffer(uint32_t* pixels, int buf_w, int buf_h,
int x, int baseline, int codepoint,
programs/include/gui/window.hpp
+1
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@@ -66,6 +66,7 @@ struct Window {
bool external; // true = shared-memory window from external process
int ext_win_id; // window server ID (valid when external == true)
uint8_t ext_cursor; // cursor style requested by external app (0=arrow, 1=resize_h, 2=resize_v)
Rect titlebar_rect() const {
return {frame.x, frame.y, frame.w, TITLEBAR_HEIGHT};
programs/include/montauk/syscall.h
+3
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@@ -329,5 +329,8 @@ namespace montauk {
inline int win_getscale() {
return (int)syscall0(Montauk::SYS_WINGETSCALE);
}
inline int win_setcursor(int id, int cursor) {
return (int)syscall2(Montauk::SYS_WINSETCURSOR, (uint64_t)id, (uint64_t)cursor);
}
}
programs/src/desktop/compose.cpp
+12
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@@ -149,6 +149,18 @@ void gui::desktop_compose(DesktopState* ds) {
}
}
// Check if focused external window requests a cursor style
if (cur_style == CURSOR_ARROW && ds->focused_window >= 0) {
Window* fwin = &ds->windows[ds->focused_window];
if (fwin->external && fwin->ext_cursor > 0) {
Rect cr = fwin->content_rect();
if (cr.contains(ds->mouse.x, ds->mouse.y)) {
if (fwin->ext_cursor == 1) cur_style = CURSOR_RESIZE_H;
else if (fwin->ext_cursor == 2) cur_style = CURSOR_RESIZE_V;
}
}
}
// Draw cursor last
draw_cursor(fb, ds->mouse.x, ds->mouse.y, cur_style);
}
programs/src/desktop/input.cpp
+26
View File
@@ -434,6 +434,32 @@ void gui::desktop_handle_mouse(DesktopState* ds) {
ds->ctx_menu_open = false;
}
// Forward continuous mouse events to focused window (hover, drag, release)
if (!left_pressed && ds->focused_window >= 0) {
Window* win = &ds->windows[ds->focused_window];
if (win->state != WIN_MINIMIZED && win->state != WIN_CLOSED) {
Rect cr = win->content_rect();
// Forward if mouse is over content (hover/move) or button is held/released (drag continuity)
if (cr.contains(mx, my) || left_held || left_released) {
if (win->external) {
Montauk::WinEvent wev;
montauk::memset(&wev, 0, sizeof(wev));
wev.type = 1; // mouse
wev.mouse.x = mx - cr.x;
wev.mouse.y = my - cr.y;
wev.mouse.scroll = 0;
wev.mouse.buttons = buttons;
wev.mouse.prev_buttons = prev;
montauk::win_sendevent(win->ext_win_id, &wev);
} else if (win->on_mouse) {
ev.x = mx;
ev.y = my;
win->on_mouse(win, ev);
}
}
}
}
// Handle scroll events on focused window
if (ev.scroll != 0 && ds->focused_window >= 0) {
Window* win = &ds->windows[ds->focused_window];
programs/src/desktop/main.cpp
+2 -1
View File
@@ -114,10 +114,11 @@ void desktop_poll_external_windows(DesktopState* ds) {
for (int i = 0; i < ds->window_count; i++) {
if (ds->windows[i].external && ds->windows[i].ext_win_id == extId) {
found = true;
// Update dirty flag
// Update dirty flag and cursor
if (extWins[e].dirty) {
ds->windows[i].dirty = true;
}
ds->windows[i].ext_cursor = extWins[e].cursor;
// Re-map if external app resized its buffer
if (extWins[e].width != ds->windows[i].content_w ||
extWins[e].height != ds->windows[i].content_h) {
programs/src/spreadsheet/main.cpp
+58
View File
@@ -51,6 +51,11 @@ TrueTypeFont* g_font_bold = nullptr;
bool g_fmt_dropdown_open = false;
bool g_col_resizing = false;
int g_col_resize_idx = -1;
int g_col_resize_start_x = 0;
int g_col_resize_start_w = 0;
UndoEntry* g_undo[UNDO_MAX + 1];
int g_undo_count = 0;
int g_undo_pos = 0;
@@ -499,6 +504,58 @@ extern "C" void _start() {
uint8_t btns = ev.mouse.buttons;
uint8_t prev = ev.mouse.prev_buttons;
bool clicked = (btns & 1) && !(prev & 1);
bool left_held = (btns & 1);
bool left_released = !(btns & 1) && (prev & 1);
int pbh = g_pathbar_open ? PATHBAR_H : 0;
int header_y = TOOLBAR_H + pbh + FORMULA_BAR_H;
// Update cursor style: resize_h when hovering near column border in header
{
int cursor = 0; // arrow
if (g_col_resizing) {
cursor = 1; // resize_h while dragging
} else if (my >= header_y && my < header_y + COL_HEADER_H) {
for (int c = 0; c < MAX_COLS; c++) {
int cx = col_x(c) - g_scroll_x + g_col_widths[c] - 1;
if (mx >= cx - COL_RESIZE_GRAB && mx <= cx + COL_RESIZE_GRAB) {
cursor = 1; // resize_h
break;
}
}
}
montauk::win_setcursor(win_id, cursor);
}
// Column resize: drag in progress
if (g_col_resizing) {
if (left_held) {
int delta = mx - g_col_resize_start_x;
int new_w = g_col_resize_start_w + delta;
if (new_w < MIN_COL_W) new_w = MIN_COL_W;
g_col_widths[g_col_resize_idx] = new_w;
clamp_scroll();
redraw = true;
}
if (left_released) {
g_col_resizing = false;
}
goto done_mouse;
}
// Column resize: start drag (click near right edge of column header)
if (clicked && my >= header_y && my < header_y + COL_HEADER_H) {
for (int c = 0; c < MAX_COLS; c++) {
int cx = col_x(c) - g_scroll_x + g_col_widths[c] - 1;
if (mx >= cx - COL_RESIZE_GRAB && mx <= cx + COL_RESIZE_GRAB) {
g_col_resizing = true;
g_col_resize_idx = c;
g_col_resize_start_x = mx;
g_col_resize_start_w = g_col_widths[c];
goto done_mouse;
}
}
}
if (clicked) {
if (handle_fmt_dropdown_click(mx, my)) {
@@ -526,6 +583,7 @@ extern "C" void _start() {
redraw = true;
}
}
done_mouse:
if (redraw) {
render(pixels);
programs/src/spreadsheet/render.cpp
+11 -2
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@@ -249,8 +249,17 @@ void render(uint32_t* pixels) {
else
text_x = x + 6;
if (text_x >= ROW_HEADER_W - tw && text_x < g_win_w)
cf->draw_to_buffer(pixels, g_win_w, g_win_h, text_x, y + (ROW_H - FONT_SIZE) / 2, cell->display, col, FONT_SIZE);
{
// Clip text to cell boundaries
int cell_left = x < ROW_HEADER_W ? ROW_HEADER_W : x;
int cell_right = x + g_col_widths[c] - 1;
if (cell_right > g_win_w) cell_right = g_win_w;
if (text_x < g_win_w && cell_left < cell_right)
cf->draw_to_buffer_clipped(pixels, g_win_w, g_win_h,
text_x, y + (ROW_H - FONT_SIZE) / 2,
cell->display, col, FONT_SIZE,
cell_left, y, cell_right - cell_left, ROW_H);
}
}
// Cell right border
programs/src/spreadsheet/spreadsheet.h
+7
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@@ -38,7 +38,9 @@ static constexpr int TB_BTN_RAD = 3;
static constexpr int MAX_COLS = 26; // A-Z
static constexpr int MAX_ROWS = 100;
static constexpr int DEF_COL_W = 100;
static constexpr int MIN_COL_W = 30;
static constexpr int ROW_H = 26;
static constexpr int COL_RESIZE_GRAB = 5; // pixels from border edge for grab zone
static constexpr int CELL_TEXT_MAX = 128;
static constexpr int FONT_SIZE = 18;
@@ -163,6 +165,11 @@ extern TrueTypeFont* g_font_bold;
extern bool g_fmt_dropdown_open;
extern bool g_col_resizing;
extern int g_col_resize_idx;
extern int g_col_resize_start_x;
extern int g_col_resize_start_w;
extern UndoEntry* g_undo[UNDO_MAX + 1];
extern int g_undo_count;
extern int g_undo_pos;