nishi/milsko
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enable frame to draw its own border. also made more color wheel changes

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git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@383 b9cfdab3-6d41-4d17-bbe4-086880011989
This commit is contained in:
IoIxD
2025-10-16 23:20:45 +00:00
parent 04e259e66b
commit 7380be6f57
3 changed files with 91 additions and 34 deletions
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92
examples/color_picker.c
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@@ -6,6 +6,9 @@ MwWidget vp;
#define WIN_SIZE 512
#define PICKER_SIZE 360
#define IMG_POS ((WIN_SIZE - PICKER_SIZE) / 2)
#define SCROLL_BAR_WIDTH (PICKER_SIZE / 32)
#define MARGIN (PICKER_SIZE / 64)
#define COLOR_DISPLAY_HEIGHT (PICKER_SIZE / 4)
typedef struct {
double r; // a fraction between 0 and 1
@@ -55,11 +58,13 @@ static rgb hsv2rgb(hsv in) {
typedef struct {
MwWidget parent;
MwWidget color_wheel_img;
MwWidget slider;
MwWidget value_slider;
MwWidget alpha_slider;
MwWidget color_display;
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;
@@ -96,7 +101,7 @@ void color_wheel_wheel_image_update(color_wheel* wheel) {
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] = 255;
wheel->color_wheel_image_data[i + 3] = wheel->alpha;
}
}
}
@@ -107,23 +112,6 @@ void color_wheel_wheel_image_update(color_wheel* wheel) {
MwVaApply(wheel->color_wheel_img, MwNpixmap, wheel->color_wheel_pixmap, NULL);
}
void color_wheel_color_display_update(color_wheel* wheel, int r, int g, int b) {
for(int y = 0; y < PICKER_SIZE / 16; y++) {
for(int x = 0; x < PICKER_SIZE; x++) {
int i = ((y * PICKER_SIZE) + x) * 4;
wheel->color_display_image_data[i] = r;
wheel->color_display_image_data[i + 1] = g;
wheel->color_display_image_data[i + 2] = b;
wheel->color_display_image_data[i + 3] = 255;
}
}
if(wheel->color_display_pixmap != NULL) {
MwLLDestroyPixmap(wheel->color_display_pixmap);
}
wheel->color_display_pixmap = MwLoadRaw(wheel->parent, wheel->color_display_image_data, PICKER_SIZE, (PICKER_SIZE / 16));
MwVaApply(wheel->color_display, MwNpixmap, wheel->color_display_pixmap, NULL);
}
static void color_wheel_click(MwWidget handle, void* user, void* call) {
color_wheel* wheel = (color_wheel*)user;
MwLLMouse* mouse = (MwLLMouse*)call;
@@ -135,12 +123,14 @@ static void color_wheel_click(MwWidget handle, void* user, void* call) {
int r = wheel->color_wheel_image_data[i];
int g = wheel->color_wheel_image_data[i + 1];
int b = wheel->color_wheel_image_data[i + 2];
int a = wheel->color_wheel_image_data[i + 3];
color_wheel_color_display_update(wheel, r, g, b);
printf("%d %d %d\n", r, g, b);
char* hexColor = malloc(8);
snprintf(hexColor, 8, "#%02X%02X%02X", r, g, b);
MwSetText(wheel->color_display, MwNbackground, hexColor);
free(hexColor);
}
static void color_wheel_on_change(MwWidget handle, void* user, void* call) {
static void color_wheel_on_change_value(MwWidget handle, void* user, void* call) {
color_wheel* wheel = (color_wheel*)user;
int value = MwGetInteger(handle, MwNvalue);
@@ -150,26 +140,72 @@ static void color_wheel_on_change(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;
wheel->color_wheel_img = MwVaCreateWidget(MwImageClass, "image", wheel->parent, IMG_POS, IMG_POS, PICKER_SIZE, PICKER_SIZE, NULL);
wheel->color_wheel_img = MwVaCreateWidget(MwImageClass, "image", wheel->parent, IMG_POS, IMG_POS, PICKER_SIZE, PICKER_SIZE, NULL);
wheel->color_wheel_image_data = malloc(PICKER_SIZE * PICKER_SIZE * 4);
wheel->color_display_image_data = malloc((PICKER_SIZE / 16) * PICKER_SIZE * 4);
wheel->color_display_image_data = malloc(PICKER_SIZE * COLOR_DISPLAY_HEIGHT * 4);
wheel->color_wheel_pixmap = NULL;
wheel->color_display_pixmap = NULL;
wheel->value = 1;
wheel->alpha = 255;
color_wheel_wheel_image_update(wheel);
MwAddUserHandler(wheel->color_wheel_img, MwNmouseDownHandler, color_wheel_click, wheel);
wheel->slider = MwVaCreateWidget(MwScrollBarClass, "scroll", wheel->parent, IMG_POS + PICKER_SIZE, IMG_POS, PICKER_SIZE / 32, PICKER_SIZE, MwNorientation, MwVERTICAL, MwNminValue, 0, MwNmaxValue, 1024, NULL);
MwAddUserHandler(wheel->slider, MwNchangedHandler, color_wheel_on_change, wheel);
wheel->color_display = MwCreateWidget(MwFrameClass, "colorDisplayFrame", wheel->parent, IMG_POS, IMG_POS + PICKER_SIZE + MARGIN, PICKER_SIZE, PICKER_SIZE / 16);
MwSetText(wheel->color_display, MwNbackground, "#000000");
MwSetInteger(wheel->color_display, MwnhasBorder, 1);
MwSetInteger(wheel->color_display, MwNinverted, 1);
wheel->color_display = MwCreateWidget(MwImageClass, "colorDisplay", wheel->parent, IMG_POS, IMG_POS + PICKER_SIZE + (PICKER_SIZE / 64), PICKER_SIZE, PICKER_SIZE / 16);
wheel->value_slider = MwVaCreateWidget(MwScrollBarClass, "value-slider", wheel->parent,
// x
IMG_POS +
PICKER_SIZE +
MARGIN,
// y
IMG_POS,
// width
SCROLL_BAR_WIDTH,
// height
PICKER_SIZE,
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 +
PICKER_SIZE +
SCROLL_BAR_WIDTH + MARGIN + MARGIN,
// y
IMG_POS,
// width
SCROLL_BAR_WIDTH,
// height
PICKER_SIZE, MwNorientation, MwVERTICAL, MwNminValue, 0, MwNmaxValue, 1024, NULL);
MwAddUserHandler(wheel->alpha_slider, MwNchangedHandler, color_wheel_on_change_alpha, wheel);
};
int main() {