commit 6aee8a426017cfa7cc538df906dc07e2e7e29504
parent b895dc97749d98449d47f4c7a4e9d55fa3de1a6a
Author: klewer-martin <martin.cachari@gmail.com>
Date: Thu, 21 Apr 2022 00:08:58 -0300
Created new module 'menu'
New module created 'menu'; contains struct Entry wich represents every
entry in the menu, as well as the drawing functions of those entries
Diffstat:
| M | main.c | | | 185 | ++++++++++++++++--------------------------------------------------------------- |
| A | menu.c | | | 85 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | menu.h | | | 41 | +++++++++++++++++++++++++++++++++++++++++ |
3 files changed, 162 insertions(+), 149 deletions(-)
diff --git a/main.c b/main.c
@@ -3,138 +3,21 @@
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
+#include "menu.h"
+
#define FONT_SIZE 12
#define FONT_NAME "/home/mk/.local/share/fonts/VictorMono-Bold.ttf"
-#define FONT_COLOR 0xFFFCF9
-#define SHADOW_COLOR 0x000000
-
-#define BAR_H 14
-#define BAR_BORDER 2
-
-#define TOTAL_ENTRIES 11
-#define ELEMENTS_PADDING 3
-
-#define NORM_COLOR 0x010101FF
-#define SEL_COLOR 0xCC0000FF
#define WIN_DEFAULT_W 800
#define WIN_DEFAULT_H 600
-#define UNHEX(color) \
- ((color) >> (8 * 3)) & 0xFF, \
- ((color) >> (8 * 2)) & 0xFF, \
- ((color) >> (8 * 1)) & 0xFF, \
- ((color) >> (8 * 0)) & 0xFF
-
-typedef struct Entry {
- char *text;
- bool selected;
- size_t index;
-} Entry;
-
-void select_next(Entry entries[]) {
- for(int i = 0; i < TOTAL_ENTRIES; i++) {
- if(entries[i].selected == true) {
- entries[i].selected = false;
- if((i + 1) < TOTAL_ENTRIES)
- entries[i + 1].selected = true;
- else
- entries[0].selected = true;
-
- return;
- }
- }
-}
-
-void select_prev(Entry entries[]) {
- for(int i = 0; i < TOTAL_ENTRIES; i++) {
- if(entries[i].selected == true) {
- entries[i].selected = false;
- if(i == 0) entries[TOTAL_ENTRIES - 1].selected = true;
- else entries[i - 1].selected = true;
-
- return;
- }
- }
-}
-
int win_w, win_h;
-int text_w, text_h;
TTF_Font *font;
-void draw_entry(SDL_Renderer *rend, Entry entry) {
- SDL_Surface *text_surface;
- SDL_Texture *text_texture;
- SDL_Rect text_rect, text_container;
- SDL_Color text_color, text_color_shadow;
-
- text_color_shadow.r = (char)(SHADOW_COLOR >> 16) & 0xFF;
- text_color_shadow.g = (char)(SHADOW_COLOR >> 8) & 0xFF;
- text_color_shadow.b = (char)(SHADOW_COLOR) & 0xFF;
-
- text_color.r = (char)(FONT_COLOR >> 16) & 0xFF;
- text_color.g = (char)(FONT_COLOR >> 8) & 0xFF;
- text_color.b = (char)(FONT_COLOR) & 0xFF;
-
- text_container.x = BAR_BORDER;
-
- text_container.y = (win_h / 2) - (((BAR_H * TOTAL_ENTRIES) + (ELEMENTS_PADDING * (TOTAL_ENTRIES - 1))) / 2) + BAR_H + (entry.index * (ELEMENTS_PADDING + BAR_H));
-
- text_container.w = win_w - (BAR_BORDER * 2);
- text_container.h = -BAR_H;
-
- if(entry.selected)
- SDL_SetRenderDrawColor(rend, UNHEX(SEL_COLOR)); /* RGBA */
- else
- SDL_SetRenderDrawColor(rend, UNHEX(NORM_COLOR)); /* RGBA */
-
- SDL_RenderFillRect(rend, &text_container);
-
- if(entry.selected) {
- text_surface = TTF_RenderText_Blended(font, entry.text, text_color_shadow);
- text_texture = SDL_CreateTextureFromSurface(rend, text_surface);
-
- TTF_SizeText(font, entry.text, &text_w, &text_h);
-
- text_rect.x = (win_w / 2) - (text_w / 2) + 1;
- text_rect.y = (win_h / 2) - (((BAR_H * TOTAL_ENTRIES) + (ELEMENTS_PADDING * (TOTAL_ENTRIES - 1))) / 2) + BAR_H + (entry.index * (ELEMENTS_PADDING + BAR_H)) - (BAR_H + 1) + 1;
- text_rect.w = text_surface->w;
- text_rect.h = text_surface->h;
-
- SDL_RenderCopy(rend, text_texture, NULL, &text_rect);
- SDL_DestroyTexture(text_texture);
- SDL_FreeSurface(text_surface);
-
- text_surface = TTF_RenderText_Blended(font, entry.text, text_color);
- text_texture = SDL_CreateTextureFromSurface(rend, text_surface);
-
- TTF_SizeText(font, entry.text, &text_w, &text_h);
-
- text_rect.x = (win_w / 2) - (text_w / 2);
- text_rect.y = (win_h / 2) - (((BAR_H * TOTAL_ENTRIES) + (ELEMENTS_PADDING * (TOTAL_ENTRIES - 1))) / 2) + BAR_H + (entry.index * (ELEMENTS_PADDING + BAR_H)) - (BAR_H + 1);
- text_rect.w = text_surface->w;
- text_rect.h = text_surface->h;
- }
- else {
- text_surface = TTF_RenderText_Blended(font, entry.text, text_color);
- text_texture = SDL_CreateTextureFromSurface(rend, text_surface);
-
- TTF_SizeText(font, entry.text, &text_w, &text_h);
-
- text_rect.x = (win_w / 2) - (text_w / 2);
- text_rect.y = (win_h / 2) - (((BAR_H * TOTAL_ENTRIES) + (ELEMENTS_PADDING * (TOTAL_ENTRIES - 1))) / 2) + BAR_H + (entry.index * (ELEMENTS_PADDING + BAR_H)) - (BAR_H + 1);
- text_rect.w = text_surface->w;
- text_rect.h = text_surface->h;
- }
- SDL_RenderCopy(rend, text_texture, NULL, &text_rect);
- SDL_DestroyTexture(text_texture);
- SDL_FreeSurface(text_surface);
-}
-
-
int main (void) {
SDL_Window *win;
SDL_Renderer *rend;
+ size_t i;
SDL_Init(SDL_INIT_VIDEO);
@@ -161,7 +44,7 @@ int main (void) {
Entry entries[TOTAL_ENTRIES] = {0};
- for(int i = 0; i < TOTAL_ENTRIES; i++) {
+ for(i = 0; i < TOTAL_ENTRIES; i++) {
entries[i].selected = false;
entries[i].index = i;
}
@@ -169,14 +52,22 @@ int main (void) {
entries[0].text = "Bubble sort";
entries[1].text = "Bubble sort (improved)";
entries[2].text = "Insertion sort";
- entries[3].text = "Merge sort";
- entries[4].text = "Quick sort";
- entries[5].text = "Quick sort (dual pivots)";
- entries[6].text = "Quick sort (LR pointers)";
- entries[7].text = "Quick sort (LL pointers)";
- entries[8].text = "Shell sort";
- entries[9].text = "Radix sort";
- entries[10].text = "Heap sort";
+ entries[3].text = "Binary insertion sort";
+ entries[4].text = "Merge sort";
+ entries[5].text = "Quick sort";
+ entries[6].text = "Quick sort (dual pivots)";
+ entries[7].text = "Quick sort (LR pointers)";
+ entries[8].text = "Quick sort (LL pointers)";
+ entries[9].text = "Shell sort";
+ entries[10].text = "Radix sort";
+ entries[11].text = "Heap sort";
+ entries[12].text = "Cocktail shaker sort";
+ entries[13].text = "Gnome sort";
+ entries[14].text = "Odd-even sort";
+ entries[15].text = "Tim sort";
+ entries[16].text = "Bogo sort";
+ entries[17].text = "Stooge sort";
+ entries[18].text = "Spaghetti sort";
entries[0].selected = true;
SDL_Keymod mod;
@@ -189,26 +80,22 @@ int main (void) {
default: break;
case SDL_KEYDOWN:
/* printf("SDL_GetModState() == %X\n", SDL_GetModState()); */
+ mod = SDL_GetModState();
switch(event.key.keysym.scancode) {
- case SDL_SCANCODE_J:
- case SDL_SCANCODE_DOWN:
- select_next(entries);
- break;
- case SDL_SCANCODE_K:
- case SDL_SCANCODE_UP:
- select_prev(entries);
- break;
- case SDL_SCANCODE_TAB:
- mod = SDL_GetModState();
- if((mod == KMOD_LSHIFT) || (mod == KMOD_RSHIFT)) {
- select_prev(entries);
+ case SDL_SCANCODE_J:
+ case SDL_SCANCODE_DOWN:
+ if(mod == KMOD_NONE) select_next(entries);
break;
- } else
- select_next(entries);
- break;
- case SDL_SCANCODE_RETURN:
- break;
- default: break;
+ case SDL_SCANCODE_K:
+ case SDL_SCANCODE_UP:
+ if(mod == KMOD_NONE) select_prev(entries);
+ break;
+ case SDL_SCANCODE_RETURN:
+ for(i = 0; i < TOTAL_ENTRIES; i++)
+ if(entries[i].selected)
+ printf("%s\n", entries[i].text);
+ break;
+ default: break;
}
break;
case SDL_WINDOWEVENT:
@@ -226,8 +113,8 @@ int main (void) {
SDL_SetRenderDrawColor(rend, 32, 32, 32, 0);
SDL_RenderClear(rend);
- for(int i = 0; i < TOTAL_ENTRIES; i++)
- draw_entry(rend, entries[i]);
+ for(i = 0; i < TOTAL_ENTRIES; i++)
+ draw_entry(rend, font, win_w, win_h, entries[i]);
SDL_RenderPresent(rend);
SDL_Delay(1);
diff --git a/menu.c b/menu.c
@@ -0,0 +1,85 @@
+#include "menu.h"
+
+/* Finds the selected entry then selects next */
+void select_next(Entry entries[]) {
+ for(int i = 0; i < TOTAL_ENTRIES; i++) {
+ if(entries[i].selected == true) {
+ entries[i].selected = false;
+ if((i + 1) < TOTAL_ENTRIES) entries[i + 1].selected = true;
+ else entries[0].selected = true;
+ return;
+ }
+ }
+}
+
+/* Finds the selected entry then selects previous */
+void select_prev(Entry entries[]) {
+ for(int i = 0; i < TOTAL_ENTRIES; i++) {
+ if(entries[i].selected == true) {
+ entries[i].selected = false;
+ if(i == 0) entries[TOTAL_ENTRIES - 1].selected = true;
+ else entries[i - 1].selected = true;
+ return;
+ }
+ }
+}
+
+void draw_entry(SDL_Renderer *rend, TTF_Font *font, int win_w, int win_h, Entry entry) {
+ SDL_Surface *text_surface;
+ SDL_Texture *text_texture;
+ SDL_Rect text_rect, box;
+ SDL_Color text_color, text_color_shadow;
+ int first_entry_y_pos, win_center_y;
+ int text_w, text_h;
+
+ win_center_y = (win_h / 2);
+ first_entry_y_pos = win_center_y -
+ ((((BAR_H + ELEMENTS_PADDING) * TOTAL_ENTRIES) - ELEMENTS_PADDING) / 2) +
+ BAR_H + (entry.index * (ELEMENTS_PADDING + BAR_H));
+
+ text_color_shadow.r = (char)(SHADOW_COLOR >> 16) & 0xFF;
+ text_color_shadow.g = (char)(SHADOW_COLOR >> 8) & 0xFF;
+ text_color_shadow.b = (char)(SHADOW_COLOR) & 0xFF;
+
+ text_color.r = (char)(FONT_COLOR >> 16) & 0xFF;
+ text_color.g = (char)(FONT_COLOR >> 8) & 0xFF;
+ text_color.b = (char)(FONT_COLOR) & 0xFF;
+
+ box.x = BAR_BORDER;
+ box.y = first_entry_y_pos;
+ box.w = win_w - (BAR_BORDER * 2);
+ box.h = -BAR_H;
+
+ SDL_SetRenderDrawColor(rend, UNHEX(entry.selected ? SEL_COLOR : NORM_COLOR));
+
+ SDL_RenderFillRect(rend, &box);
+ TTF_SizeText(font, entry.text, &text_w, &text_h);
+
+ /* Draw shadow */
+ if(entry.selected) {
+ text_surface = TTF_RenderText_Blended(font, entry.text, text_color_shadow);
+ text_texture = SDL_CreateTextureFromSurface(rend, text_surface);
+
+ text_rect.x = (win_w / 2) - (text_w / 2) + 2;
+ text_rect.y = first_entry_y_pos - (BAR_H + 1) + 2;
+ text_rect.w = text_surface->w;
+ text_rect.h = text_surface->h;
+
+ SDL_RenderCopy(rend, text_texture, NULL, &text_rect);
+ SDL_DestroyTexture(text_texture);
+ SDL_FreeSurface(text_surface);
+ }
+
+ text_surface = TTF_RenderText_Blended(font, entry.text, text_color);
+ text_texture = SDL_CreateTextureFromSurface(rend, text_surface);
+
+ text_rect.x = (win_w / 2) - (text_w / 2);
+ text_rect.y = first_entry_y_pos - (BAR_H + 1);
+ text_rect.w = text_surface->w;
+ text_rect.h = text_surface->h;
+
+ SDL_RenderCopy(rend, text_texture, NULL, &text_rect);
+ SDL_DestroyTexture(text_texture);
+ SDL_FreeSurface(text_surface);
+}
+
diff --git a/menu.h b/menu.h
@@ -0,0 +1,41 @@
+#ifndef _MENU_H_
+#define _MENU_H_
+
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_ttf.h>
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#define FONT_COLOR 0xFFFCF9
+#define SHADOW_COLOR 0x000000
+
+#define BAR_H 14
+#define BAR_BORDER 2
+
+#define TOTAL_ENTRIES 19
+#define ELEMENTS_PADDING 3
+
+#define NORM_COLOR 0x010101FF
+#define SEL_COLOR 0xCC0000FF
+
+#define WIN_DEFAULT_W 800
+#define WIN_DEFAULT_H 600
+
+#define UNHEX(color) \
+ ((color) >> (8 * 3)) & 0xFF, \
+ ((color) >> (8 * 2)) & 0xFF, \
+ ((color) >> (8 * 1)) & 0xFF, \
+ ((color) >> (8 * 0)) & 0xFF
+
+typedef struct Entry {
+ char *text;
+ bool selected;
+ size_t index;
+} Entry;
+
+void select_prev(Entry []);
+void select_next(Entry []);
+void draw_entry(SDL_Renderer *, TTF_Font *, int, int, Entry);
+
+#endif
