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Adding mouse handling to example
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@mjr27
mjr27 committed Sep 25, 2017
1 parent aa1b95d commit 2aa6b51
Showing 1 changed file with 56 additions and 53 deletions.
109 changes: 56 additions & 53 deletions examples/nuklear_nim_examples/glfw3_opengl3.nim
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Expand Up @@ -37,7 +37,7 @@ var config : convert_config
proc allocate(a2: handle; old: pointer; a4: uint): pointer {.cdecl.} =
if not old.isNil:
old.dealloc()

return alloc(a4)

proc deallocate(a2: handle; old: pointer) {.cdecl.} =
Expand All @@ -51,17 +51,17 @@ var win : glfw.Window
var vertex_layout {.global.} = @[
draw_vertex_layout_element(
attribute: VERTEX_POSITION,
format: FORMAT_FLOAT,
format: FORMAT_FLOAT,
offset: offsetof(glfw_vertex, position)
),
draw_vertex_layout_element(
attribute: VERTEX_TEXCOORD,
format: FORMAT_FLOAT,
format: FORMAT_FLOAT,
offset: offsetof(glfw_vertex, uv)
),
draw_vertex_layout_element(
attribute: VERTEX_COLOR,
format: FORMAT_R8G8B8A8,
format: FORMAT_R8G8B8A8,
offset: offsetof(glfw_vertex, col)
),
draw_vertex_layout_element(
Expand Down Expand Up @@ -97,34 +97,35 @@ var display_width, display_height : cint = 0

proc set_style(ctx: var context) =
var style : array[COLOR_COUNT.ord, color]
style[COLOR_TEXT.ord] = newColorRGBA( 70, 70, 70, 255 )
style[COLOR_WINDOW.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_HEADER.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_BORDER.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_BUTTON.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_BUTTON_HOVER.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_BUTTON_ACTIVE.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_TOGGLE.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_TOGGLE_HOVER.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_TOGGLE_CURSOR.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_SELECT.ord] = newColorRGBA( 175, 175, 175, 255 )
style[COLOR_SELECT_ACTIVE.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SLIDER.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SLIDER_CURSOR.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SLIDER_CURSOR_HOVER.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SLIDER_CURSOR_ACTIVE.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_PROPERTY.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_EDIT.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_EDIT_CURSOR.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_COMBO.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_CHART_COLOR.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_CHART_COLOR_HIGHLIGHT.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SCROLLBAR.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SCROLLBAR_CURSOR.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SCROLLBAR_CURSOR_HOVER.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_SCROLLBAR_CURSOR_ACTIVE.ord] = newColorRGBA( 0, 0, 0, 255 )
style[COLOR_TAB_HEADER.ord] = newColorRGBA( 0, 0, 0, 255 )

style[COLOR_TEXT.ord] = newColorRGBA(20, 20, 20, 255);
style[COLOR_WINDOW.ord] = newColorRGBA(202, 212, 214, 215);
style[COLOR_HEADER.ord] = newColorRGBA(137, 182, 224, 220);
style[COLOR_BORDER.ord] = newColorRGBA(140, 159, 173, 255);
style[COLOR_BUTTON.ord] = newColorRGBA(137, 182, 224, 255);
style[COLOR_BUTTON_HOVER.ord] = newColorRGBA(142, 187, 229, 255);
style[COLOR_BUTTON_ACTIVE.ord] = newColorRGBA(147, 192, 234, 255);
style[COLOR_TOGGLE.ord] = newColorRGBA(177, 210, 210, 255);
style[COLOR_TOGGLE_HOVER.ord] = newColorRGBA(182, 215, 215, 255);
style[COLOR_TOGGLE_CURSOR.ord] = newColorRGBA(137, 182, 224, 255);
style[COLOR_SELECT.ord] = newColorRGBA(177, 210, 210, 255);
style[COLOR_SELECT_ACTIVE.ord] = newColorRGBA(137, 182, 224, 255);
style[COLOR_SLIDER.ord] = newColorRGBA(177, 210, 210, 255);
style[COLOR_SLIDER_CURSOR.ord] = newColorRGBA(137, 182, 224, 245);
style[COLOR_SLIDER_CURSOR_HOVER.ord] = newColorRGBA(142, 188, 229, 255);
style[COLOR_SLIDER_CURSOR_ACTIVE.ord] = newColorRGBA(147, 193, 234, 255);
style[COLOR_PROPERTY.ord] = newColorRGBA(210, 210, 210, 255);
style[COLOR_EDIT.ord] = newColorRGBA(210, 210, 210, 225);
style[COLOR_EDIT_CURSOR.ord] = newColorRGBA(20, 20, 20, 255);
style[COLOR_COMBO.ord] = newColorRGBA(210, 210, 210, 255);
style[COLOR_CHART.ord] = newColorRGBA(210, 210, 210, 255);
style[COLOR_CHART_COLOR.ord] = newColorRGBA(137, 182, 224, 255);
style[COLOR_CHART_COLOR_HIGHLIGHT.ord] = newColorRGBA( 255, 0, 0, 255);
style[COLOR_SCROLLBAR.ord] = newColorRGBA(190, 200, 200, 255);
style[COLOR_SCROLLBAR_CURSOR.ord] = newColorRGBA(64, 84, 95, 255);
style[COLOR_SCROLLBAR_CURSOR_HOVER.ord] = newColorRGBA(70, 90, 100, 255);
style[COLOR_SCROLLBAR_CURSOR_ACTIVE.ord] = newColorRGBA(75, 95, 105, 255);
style[COLOR_TAB_HEADER.ord] = newColorRGBA(156, 193, 220, 255);

ctx.newStyleFromTable(style[0])

proc device_init() =
Expand All @@ -134,7 +135,7 @@ proc device_init() =
dev.prog = glCreateProgram();
dev.vert_shader = glCreateShader(GL_VERTEX_SHADER);
dev.frag_shader = glCreateShader(GL_FRAGMENT_SHADER);

var vertex_shader = """
#version 150
in vec2 Position;
Expand Down Expand Up @@ -166,7 +167,7 @@ proc device_init() =
glShaderSource(dev.vert_shader, 1, vertCStringArray, nil)

glShaderSource(dev.frag_shader, 1, fragCStringArray, nil)

glCompileShader(dev.vert_shader);
glCompileShader(dev.frag_shader);
glGetShaderiv(dev.vert_shader, GL_COMPILE_STATUS, addr status);
Expand Down Expand Up @@ -210,7 +211,7 @@ proc device_init() =
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);

if not glfw.Init() == 1:
quit(QUIT_FAILURE)

Expand Down Expand Up @@ -265,6 +266,9 @@ while glfw.WindowShouldClose(win) == 0:
input_begin(addr ctx)

glfw.GetCursorPos(win, addr mouseX, addr mouseY)
inputButton(ctx, BUTTON_LEFT, mouseX.int32, mouseY.int32, glfw.GetMouseButton(win, glfw.MOUSE_BUTTON_LEFT) == glfw.PRESS);
inputButton(ctx, BUTTON_MIDDLE, mouseX.int32, mouseY.int32, glfw.GetMouseButton(win, glfw.MOUSE_BUTTON_MIDDLE) == glfw.PRESS);
inputButton(ctx, BUTTON_RIGHT, mouseX.int32, mouseY.int32, glfw.GetMouseButton(win, glfw.MOUSE_BUTTON_RIGHT) == glfw.PRESS);
inputMotion(ctx, cint mouseX, cint mouseY)

closeInput(ctx)
Expand All @@ -274,18 +278,18 @@ while glfw.WindowShouldClose(win) == 0:
EASY = false
HARD = true

var op: bool = EASY
var op {.global.}: bool = EASY

var property {.global.}: cint = 20

layoutStaticRow(ctx, 30, 80, 1)
if buttonLabel(ctx, "button"): echo "button pressed"
layoutDynamicRow(ctx, 30, 2)

if optionLabel(ctx, "easy", op) == EASY:
op = HARD
if optionLabel(ctx, "hard", op) == HARD:
if optionLabel(ctx, "easy", op == EASY):
op = EASY
if optionLabel(ctx, "hard", op == HARD):
op = HARD
layoutDynamicRow(ctx, 25, 1)
propertyInt(ctx, "Compression:", 0, property, 100, 10, 1)
layoutDynamicRow(ctx, 20, 1)
Expand All @@ -295,7 +299,7 @@ while glfw.WindowShouldClose(win) == 0:
layoutDynamicRow(ctx, 120, 1)
background = color_picker(ctx, background, RGBA)
layoutDynamicRow(ctx, 25, 1)

background.r = char(propertyI(ctx, "#R:", 0, background.r.cint, 255, 1, 1.0))
background.g = char(propertyI(ctx, "#G:", 0, background.g.cint, 255, 1, 1.0))
background.b = char(propertyI(ctx, "#B:", 0, background.b.cint, 255, 1, 1.0))
Expand All @@ -304,7 +308,7 @@ while glfw.WindowShouldClose(win) == 0:
ctx.close()

var bg : array[4, cfloat]

background.fv(bg[0])

glfw.GetWindowSize(win, addr width, addr height);
Expand Down Expand Up @@ -334,7 +338,7 @@ while glfw.WindowShouldClose(win) == 0:

glUseProgram(dev.prog);
glUniform1i(dev.uniform_tex, 0);

glUniformMatrix4fv(dev.uniform_proj, 1, GL_FALSE, addr ortho[0][0])
glViewport(0,0,(GLsizei)display_width,(GLsizei)display_height);

Expand Down Expand Up @@ -374,20 +378,19 @@ while glfw.WindowShouldClose(win) == 0:

cmd = firstDrawCommand(ctx, dev.cmds)
while not isNil(cmd):
if cmd.elem_count == 0:
continue
glBindTexture(GL_TEXTURE_2D, GLuint cast[int](cmd.texture))
glScissor(
(GLint)(cmd.clip_rect.x * fb_scale.x),
(GLint)((float(height) - float(cmd.clip_rect.y + cmd.clip_rect.h)) * fb_scale.y),
(GLint)(cmd.clip_rect.w * fb_scale.x),
(GLint)(cmd.clip_rect.h * fb_scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd.elem_count, GL_UNSIGNED_SHORT, offset);
offset = offset + int cmd.elem_count
if cmd.elem_count != 0:
glBindTexture(GL_TEXTURE_2D, GLuint cast[int](cmd.texture))
glScissor(
(GLint)(cmd.clip_rect.x * fb_scale.x),
(GLint)((float(height) - float(cmd.clip_rect.y + cmd.clip_rect.h)) * fb_scale.y),
(GLint)(cmd.clip_rect.w * fb_scale.x),
(GLint)(cmd.clip_rect.h * fb_scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd.elem_count, GL_UNSIGNED_SHORT, offset);
offset = offset + int cmd.elem_count

cmd = nextDrawCommand(cmd, dev.cmds, ctx)


ctx.clear()


Expand Down

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