nishi/milsko
1
Fork 0
mirror of https://gitea.nishi.boats/pyrite-dev/milsko synced 2025-12-31 06:30:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

color wheel: give up on alpha entirely i didn't realize we're not supporting that

Browse Source 
git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@386 b9cfdab3-6d41-4d17-bbe4-086880011989
This commit is contained in:
IoIxD
2025-10-17 00:10:22 +00:00
parent 6e6077a351
commit f4eed938cf
1 changed files with 9 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
examples/color_picker.c
View File

@@ -1,6 +1,6 @@
/* $Id$ */
#include <Mw/Milsko.h>
#include <stdint.h>
MwWidget vp;
#define WIN_SIZE 512
@@ -59,13 +59,11 @@ typedef struct {
MwWidget parent;
MwWidget color_wheel_img;
MwWidget value_slider;
MwWidget alpha_slider;
MwWidget color_display;
MwWidget color_display_text;
MwLLPixmap color_wheel_pixmap;
MwLLPixmap color_display_pixmap;
double value;
double alpha;
unsigned char* color_wheel_image_data;
unsigned char* color_display_image_data;
} color_wheel;
@@ -94,15 +92,17 @@ void color_wheel_wheel_image_update(color_wheel* wheel) {
if(hue < 0.0) {
hue += 360;
}
rgb color = hsv2rgb((hsv){
.h = hue / 360.,
.s = dist / 179.61,
.v = wheel->value,
});
rgb color = hsv2rgb((hsv){
.h = hue / 360.,
.s = (dist / 179.61),
.v = wheel->value,
});
wheel->color_wheel_image_data[i] = color.r * 255;
wheel->color_wheel_image_data[i + 1] = color.g * 255;
wheel->color_wheel_image_data[i + 2] = color.b * 255;
wheel->color_wheel_image_data[i + 3] = wheel->alpha;
wheel->color_wheel_image_data[i + 3] = 255;
}
}
}
@@ -143,16 +143,6 @@ static void color_wheel_on_change_value(MwWidget handle, void* user, void* call)
color_wheel_wheel_image_update(wheel);
}
static void color_wheel_on_change_alpha(MwWidget handle, void* user, void* call) {
color_wheel* wheel = (color_wheel*)user;
int value = MwGetInteger(handle, MwNvalue);
int diff = MwGetInteger(handle, MwNchangedBy);
wheel->alpha = (1.0 - ((double)value / 1024.)) * 255.;
color_wheel_wheel_image_update(wheel);
}
void color_wheel_setup(MwWidget parent, color_wheel* wheel) {
wheel->parent = parent;
@@ -164,7 +154,6 @@ void color_wheel_setup(MwWidget parent, color_wheel* wheel) {
wheel->color_wheel_pixmap = NULL;
wheel->color_display_pixmap = NULL;
wheel->value = 1;
wheel->alpha = 255;
color_wheel_wheel_image_update(wheel);
@@ -195,22 +184,6 @@ void color_wheel_setup(MwWidget parent, color_wheel* wheel) {
MwNorientation, MwVERTICAL, MwNminValue, 0, MwNmaxValue, 1024, NULL);
MwAddUserHandler(wheel->value_slider, MwNchangedHandler, color_wheel_on_change_value, wheel);
wheel->alpha_slider = MwVaCreateWidget(MwScrollBarClass, "alpha-slider", wheel->parent,
// x
IMG_POS,
// y
IMG_POS -
SCROLL_BAR_WIDTH - MARGIN,
// width
PICKER_SIZE,
// height
SCROLL_BAR_WIDTH,
MwNorientation, MwHORIZONTAL, MwNminValue, 0, MwNmaxValue, 1024, NULL);
MwAddUserHandler(wheel->alpha_slider, MwNchangedHandler, color_wheel_on_change_alpha, wheel);
};
int main() {