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Scroll clamping

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This commit is contained in:
Krzosa Karol
2024-07-02 11:06:04 +02:00
parent d3c4c4cd02
commit 8250058296
2 changed files with 16 additions and 6 deletions
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9
src/text_editor/layout.cpp
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@@ -12,6 +12,7 @@ struct LayoutRow {
struct Layout {
Array<LayoutRow> rows;
Vec2 buffer_world_pixel_size;
LayoutColumn *max_column;
};
struct HistoryEntry {
@@ -82,6 +83,10 @@ Layout CalculateLayout(Arena *arena, Buffer &buffer, Font font, float font_size,
row->columns.add({cell_rect, iter.pos, (int)iter.item});
row->rect.max = cell_rect.max;
if (layout.max_column == NULL || row->rect.max.x > layout.max_column->rect.max.x) {
layout.max_column = row->columns.last();
}
text_offset_x += x_to_offset_by;
}
@@ -111,6 +116,10 @@ Layout CalculateLayout(Arena *arena, Buffer &buffer, Font font, float font_size,
Rect2 cell_rect = {glyph_position, Vector2Add(glyph_position, cell_size)};
row->columns.add({cell_rect, buffer.len, '\0'});
row->rect = {glyph_position, cell_rect.max};
if (layout.max_column == NULL || row->rect.max.x > layout.max_column->rect.max.x) {
layout.max_column = row->columns.last();
}
}
layout.buffer_world_pixel_size.y = text_offset_y;

13
src/text_editor/main.cpp
View File

@@ -123,8 +123,6 @@ int main() {
float mouse_wheel = GetMouseWheelMove() * 48;
focused_window->scroll.y -= mouse_wheel;
focused_window->scroll.y = ClampBottom(focused_window->scroll.y, 0.f);
focused_window->scroll.x = ClampBottom(focused_window->scroll.x, 0.f);
MergeCursors(focused_window);
if (IsKeyDown(KEY_LEFT_CONTROL) && IsKeyPressed(KEY_A)) {
@@ -430,8 +428,8 @@ int main() {
DrawRectangleRec(ToRectangle(window.rect), WHITE);
Vec2 size = GetSize(window.rect);
Vec2 min = window.scroll / window.layout.buffer_world_pixel_size;
Vec2 max = (window.scroll + size) / window.layout.buffer_world_pixel_size;
Vec2 min = window.scroll / (window.layout.buffer_world_pixel_size + size);
Vec2 max = (window.scroll + size) / (window.layout.buffer_world_pixel_size + size);
DrawRectangleRec(ToRectangle(vertical_bar_rect), GRAY);
{
@@ -456,7 +454,6 @@ int main() {
}
float value = GetMouseDelta().y / vert_size;
window.scroll.y += value * window.layout.buffer_world_pixel_size.y;
window.scroll.y = ClampBottom(window.scroll.y, 0.f);
}
}
@@ -483,11 +480,15 @@ int main() {
}
float value = GetMouseDelta().x / hori_size;
window.scroll.x += value * window.layout.buffer_world_pixel_size.x;
window.scroll.x = ClampBottom(window.scroll.x, 0.f);
}
}
}
{
window.scroll.y = Clamp(window.scroll.y, 0.f, window.layout.rows.last()->rect.min.y);
window.scroll.x = Clamp(window.scroll.x, 0.f, window.layout.max_column->rect.min.x);
}
// Mouse selection
if (!window.mouse_selecting_hori_bar && !window.mouse_selecting_vert_bar) {
bool mouse_in_window = CheckCollisionPointRec(mouse, ToRectangle(window.rect)) ||