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Layer_preview_on(): reformat for clarity

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Thomas Bernard 2019-01-22 11:21:00 +01:00
parent 40dfa79612
commit 75579a9456
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GPG Key ID: 0FF11B67A5C0863C
1 changed files with 17 additions and 14 deletions
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29
src/engine.c
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@ -592,31 +592,33 @@ void Status_print_palette_color(byte color)
Print_in_menu(str,0);
}
void Layer_preview_on(int * preview_is_visible)
/// activate layer preview
static void Layer_preview_on(int * preview_is_visible)
{
int x,y;
short layer;
short layercount = Main.backups->Pages->Nb_layers;
static int previewW=0, previewH=0;
int previewW, previewH;
if (! *preview_is_visible && layercount>1)
{
previewW = Min(Main.image_width/Menu_factor_X,Layer_button_width);
previewW = Min(Main.image_width/Menu_factor_X, Layer_button_width);
previewH = previewW * Main.image_height / Main.image_width * Menu_factor_X / Menu_factor_Y;
if (previewH > Screen_height/4)
{
previewH = Screen_height/4;
previewW = Main.image_width*previewH/Main.image_height*Menu_factor_Y/Menu_factor_X;
previewW = Main.image_width * previewH / Main.image_height * Menu_factor_Y / Menu_factor_X;
}
Open_popup((Buttons_Pool[BUTTON_LAYER_SELECT].X_offset + 2)*Menu_factor_X,
Menu_Y - previewH * Menu_factor_Y, Buttons_Pool[BUTTON_LAYER_SELECT].Width, previewH);
Open_popup((Buttons_Pool[BUTTON_LAYER_SELECT].X_offset + 2) * Menu_factor_X,
Menu_Y - previewH * Menu_factor_Y,
Buttons_Pool[BUTTON_LAYER_SELECT].Width, previewH);
*preview_is_visible = 1;
// Make the system think the menu is visible (Open_popup hides it)
// so Button_under_mouse still works
Menu_is_visible=Menu_is_visible_before_window;
Menu_Y=Menu_Y_before_window;
Menu_is_visible = Menu_is_visible_before_window;
Menu_Y = Menu_Y_before_window;
Window_rectangle(0, 0, Window_width, Window_height, MC_Dark);
@ -625,21 +627,22 @@ void Layer_preview_on(int * preview_is_visible)
int offset;
// Stop if the window is too small to show the
// layer button (ex: 320x200 can only display 12 layers)
if (layer*Layer_button_width+previewW > Window_width)
if (layer * Layer_button_width + previewW > Window_width)
break;
offset=(Layer_button_width-previewW)/2;
offset = (Layer_button_width - previewW) / 2;
for (y = 0; y < previewH*Pixel_height*Menu_factor_Y-1; y++)
for (x = 0; x < previewW*Pixel_width*Menu_factor_X-1; x++)
{
int imgx = x * Main.image_width / (previewW*Pixel_width*Menu_factor_X-1);
int imgy = y * Main.image_height / (previewH*Pixel_height*Menu_factor_Y-1);
// Use Pixel_simple() in order to get highest resolution
Pixel_simple(x+((layer*Layer_button_width+offset)*Menu_factor_X+Window_pos_X)*Pixel_width, y+Window_pos_Y*Pixel_height+1, *(Main.backups->Pages->Image[layer].Pixels
+ imgx + imgy * Main.image_width));
Pixel_simple(x + ((layer*Layer_button_width+offset)*Menu_factor_X + Window_pos_X) * Pixel_width,
y + Window_pos_Y*Pixel_height + 1,
Read_pixel_from_layer(layer, imgx, imgy) );
}
}
Update_window_area(0,0,Window_width, Window_height);
Update_window_area(0, 0, Window_width, Window_height);
}
}