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Add comments giving cairo version required for each cairo call if > 1.0

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ManoloFLTK 2024-03-22 16:11:38 +01:00
parent 86f4a6fc8e
commit 34a881482a
1 changed files with 12 additions and 11 deletions
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23
src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
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@ -503,7 +503,7 @@ void Fl_Cairo_Graphics_Driver::circle(double x, double y, double r){
void Fl_Cairo_Graphics_Driver::arc(double x, double y, double r, double start, double a){
if (what == NONE) return;
if (gap_ == 1) cairo_new_sub_path(cairo_);
if (gap_ == 1) cairo_new_sub_path(cairo_); // 1.2
gap_ = 0;
if (start > a)
cairo_arc(cairo_, x, y, r, -start*M_PI/180, -a*M_PI/180);
@ -850,7 +850,8 @@ static void dealloc_surface_data(void *data) {
void Fl_Cairo_Graphics_Driver::cache(Fl_RGB_Image *rgb) {
int stride = cairo_format_stride_for_width(Fl_Cairo_Graphics_Driver::cairo_format, rgb->data_w());
int stride = cairo_format_stride_for_width(Fl_Cairo_Graphics_Driver::cairo_format,
rgb->data_w()); // 1.6
uchar *BGRA = new uchar[stride * rgb->data_h()];
memset(BGRA, 0, stride * rgb->data_h());
int lrgb = rgb->ld() ? rgb->ld() : rgb->data_w() * rgb->d();
@ -942,7 +943,7 @@ void Fl_Cairo_Graphics_Driver::draw_fixed(Fl_Bitmap *bm,int XP, int YP, int WP,
cairo_pattern_t *Fl_Cairo_Graphics_Driver::bitmap_to_pattern(Fl_Bitmap *bm,
bool complement, cairo_surface_t **p_surface) {
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_A1, bm->data_w());
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_A1, bm->data_w()); // 1.6
int w_bitmap = ((bm->data_w() + 7) / 8);
uchar *BGRA = new uchar[stride * bm->data_h()];
memset(BGRA, 0, stride * bm->data_h());
@ -991,7 +992,7 @@ cairo_pattern_t *Fl_Cairo_Graphics_Driver::bitmap_to_pattern(Fl_Bitmap *bm,
void Fl_Cairo_Graphics_Driver::cache(Fl_Bitmap *bm) {
cairo_surface_t *surf;
cairo_pattern_t *pattern = Fl_Cairo_Graphics_Driver::bitmap_to_pattern(bm, false, &surf);
uchar *BGRA = cairo_image_surface_get_data(surf);
uchar *BGRA = cairo_image_surface_get_data(surf); // 1.2
(void)cairo_surface_set_user_data(surf, &data_key_for_surface, BGRA, dealloc_surface_data);
cairo_surface_destroy(surf);
*Fl_Graphics_Driver::id(bm) = (fl_uintptr_t)pattern;
@ -1400,18 +1401,18 @@ void Fl_Cairo_Graphics_Driver::text_extents(const char* txt, int n, int& dx, int
Fl_Region Fl_Cairo_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
cairo_rectangle_int_t rect = {x, y, w, h};
return cairo_region_create_rectangle(&rect);
return cairo_region_create_rectangle(&rect); // 1.10
}
void Fl_Cairo_Graphics_Driver::add_rectangle_to_region(Fl_Region r_, int X, int Y, int W, int H) {
cairo_rectangle_int_t rect = {X, Y, W, H};
cairo_region_union_rectangle((cairo_region_t*)r_, &rect);
cairo_region_union_rectangle((cairo_region_t*)r_, &rect); // 1.10
}
void Fl_Cairo_Graphics_Driver::XDestroyRegion(Fl_Region r_) {
cairo_region_destroy((cairo_region_t*)r_);
cairo_region_destroy((cairo_region_t*)r_); // 1.10
}
@ -1425,14 +1426,14 @@ void Fl_Cairo_Graphics_Driver::restore_clip() {
clip_ = new Clip();
clip_->prev = NULL;
}
int count = cairo_region_num_rectangles(r);
int count = cairo_region_num_rectangles(r); // 1.10
cairo_rectangle_int_t rect;
for (int i = 0; i < count; i++) {
cairo_region_get_rectangle(r, i, &rect);
cairo_region_get_rectangle(r, i, &rect); // 1.10
cairo_rectangle(cairo_, rect.x - 0.5, rect.y - 0.5, rect.width, rect.height);
}
// put in clip_ the bounding rect of region r
cairo_region_get_extents(r, &rect);
cairo_region_get_extents(r, &rect); // 1.10
clip_->x = rect.x;
clip_->y = rect.y;
clip_->w = rect.width;
@ -1496,7 +1497,7 @@ void Fl_Cairo_Graphics_Driver::focus_rect(int x, int y, int w, int h)
cairo_pattern_t *Fl_Cairo_Graphics_Driver::calc_cairo_mask(const Fl_RGB_Image *rgb) {
int i, j, d = rgb->d(), w = rgb->data_w(), h = rgb->data_h(), ld = rgb->ld();
int bytesperrow = cairo_format_stride_for_width(CAIRO_FORMAT_A1, w);
int bytesperrow = cairo_format_stride_for_width(CAIRO_FORMAT_A1, w); // 1.6
if (!ld) ld = d * w;
unsigned u;
uchar byte, onebit;